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Changes in 4.14.197: (65 commits)
HID: core: Correctly handle ReportSize being zero
HID: core: Sanitize event code and type when mapping input
perf record/stat: Explicitly call out event modifiers in the documentation
drm/msm: add shutdown support for display platform_driver
hwmon: (applesmc) check status earlier.
nvmet: Disable keep-alive timer when kato is cleared to 0h
ceph: don't allow setlease on cephfs
cpuidle: Fixup IRQ state
s390: don't trace preemption in percpu macros
xen/xenbus: Fix granting of vmalloc'd memory
dmaengine: of-dma: Fix of_dma_router_xlate's of_dma_xlate handling
batman-adv: Avoid uninitialized chaddr when handling DHCP
batman-adv: Fix own OGM check in aggregated OGMs
batman-adv: bla: use netif_rx_ni when not in interrupt context
dmaengine: at_hdmac: check return value of of_find_device_by_node() in at_dma_xlate()
MIPS: mm: BMIPS5000 has inclusive physical caches
MIPS: BMIPS: Also call bmips_cpu_setup() for secondary cores
netfilter: nf_tables: add NFTA_SET_USERDATA if not null
netfilter: nf_tables: incorrect enum nft_list_attributes definition
netfilter: nf_tables: fix destination register zeroing
net: hns: Fix memleak in hns_nic_dev_probe
net: systemport: Fix memleak in bcm_sysport_probe
ravb: Fixed to be able to unload modules
net: arc_emac: Fix memleak in arc_mdio_probe
dmaengine: pl330: Fix burst length if burst size is smaller than bus width
gtp: add GTPA_LINK info to msg sent to userspace
bnxt_en: Check for zero dir entries in NVRAM.
bnxt_en: Fix PCI AER error recovery flow
nvmet-fc: Fix a missed _irqsave version of spin_lock in 'nvmet_fc_fod_op_done()'
perf tools: Correct SNOOPX field offset
net: ethernet: mlx4: Fix memory allocation in mlx4_buddy_init()
fix regression in "epoll: Keep a reference on files added to the check list"
tg3: Fix soft lockup when tg3_reset_task() fails.
iommu/vt-d: Serialize IOMMU GCMD register modifications
thermal: ti-soc-thermal: Fix bogus thermal shutdowns for omap4430
include/linux/log2.h: add missing () around n in roundup_pow_of_two()
btrfs: drop path before adding new uuid tree entry
btrfs: Remove redundant extent_buffer_get in get_old_root
btrfs: Remove extraneous extent_buffer_get from tree_mod_log_rewind
btrfs: set the lockdep class for log tree extent buffers
uaccess: Add non-pagefault user-space read functions
uaccess: Add non-pagefault user-space write function
btrfs: fix potential deadlock in the search ioctl
net: usb: qmi_wwan: add Telit 0x1050 composition
usb: qmi_wwan: add D-Link DWM-222 A2 device ID
ALSA: ca0106: fix error code handling
ALSA: pcm: oss: Remove superfluous WARN_ON() for mulaw sanity check
ALSA: hda/hdmi: always check pin power status in i915 pin fixup
ALSA: firewire-digi00x: exclude Avid Adrenaline from detection
affs: fix basic permission bits to actually work
block: allow for_each_bvec to support zero len bvec
block: Move SECTOR_SIZE and SECTOR_SHIFT definitions into <linux/blkdev.h>
libata: implement ATA_HORKAGE_MAX_TRIM_128M and apply to Sandisks
dm cache metadata: Avoid returning cmd->bm wild pointer on error
dm thin metadata: Avoid returning cmd->bm wild pointer on error
mm: slub: fix conversion of freelist_corrupted()
KVM: arm64: Add kvm_extable for vaxorcism code
KVM: arm64: Defer guest entry when an asynchronous exception is pending
KVM: arm64: Survive synchronous exceptions caused by AT instructions
KVM: arm64: Set HCR_EL2.PTW to prevent AT taking synchronous exception
checkpatch: fix the usage of capture group ( ... )
mm/hugetlb: fix a race between hugetlb sysctl handlers
cfg80211: regulatory: reject invalid hints
net: usb: Fix uninit-was-stored issue in asix_read_phy_addr()
Linux 4.14.197
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Conflicts:
drivers/gpu/drm/msm/msm_drv.c
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Signed-off-by: Yaroslav Furman <yaro330@gmail.com>
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Changes in 4.14.174: (100 commits)
phy: Revert toggling reset changes.
net: phy: Avoid multiple suspends
cgroup, netclassid: periodically release file_lock on classid updating
gre: fix uninit-value in __iptunnel_pull_header
ipv6/addrconf: call ipv6_mc_up() for non-Ethernet interface
ipvlan: add cond_resched_rcu() while processing muticast backlog
ipvlan: do not use cond_resched_rcu() in ipvlan_process_multicast()
netlink: Use netlink header as base to calculate bad attribute offset
net: macsec: update SCI upon MAC address change.
net: nfc: fix bounds checking bugs on "pipe"
net/packet: tpacket_rcv: do not increment ring index on drop
r8152: check disconnect status after long sleep
sfc: detach from cb_page in efx_copy_channel()
bnxt_en: reinitialize IRQs when MTU is modified
cgroup: memcg: net: do not associate sock with unrelated cgroup
net: memcg: late association of sock to memcg
net: memcg: fix lockdep splat in inet_csk_accept()
fib: add missing attribute validation for tun_id
nl802154: add missing attribute validation
nl802154: add missing attribute validation for dev_type
can: add missing attribute validation for termination
macsec: add missing attribute validation for port
net: fq: add missing attribute validation for orphan mask
team: add missing attribute validation for port ifindex
team: add missing attribute validation for array index
nfc: add missing attribute validation for SE API
nfc: add missing attribute validation for vendor subcommand
net: phy: fix MDIO bus PM PHY resuming
bonding/alb: make sure arp header is pulled before accessing it
slip: make slhc_compress() more robust against malicious packets
net: fec: validate the new settings in fec_enet_set_coalesce()
macvlan: add cond_resched() during multicast processing
inet_diag: return classid for all socket types
ipvlan: do not add hardware address of master to its unicast filter list
ipvlan: egress mcast packets are not exceptional
ipvlan: don't deref eth hdr before checking it's set
cgroup: cgroup_procs_next should increase position index
cgroup: Iterate tasks that did not finish do_exit()
iwlwifi: mvm: Do not require PHY_SKU NVM section for 3168 devices
virtio-blk: fix hw_queue stopped on arbitrary error
iommu/vt-d: quirk_ioat_snb_local_iommu: replace WARN_TAINT with pr_warn + add_taint
workqueue: don't use wq_select_unbound_cpu() for bound works
drm/amd/display: remove duplicated assignment to grph_obj_type
ktest: Add timeout for ssh sync testing
cifs_atomic_open(): fix double-put on late allocation failure
gfs2_atomic_open(): fix O_EXCL|O_CREAT handling on cold dcache
KVM: x86: clear stale x86_emulate_ctxt->intercept value
ARC: define __ALIGN_STR and __ALIGN symbols for ARC
efi: Fix a race and a buffer overflow while reading efivars via sysfs
x86/mce: Fix logic and comments around MSR_PPIN_CTL
iommu/dma: Fix MSI reservation allocation
iommu/vt-d: dmar: replace WARN_TAINT with pr_warn + add_taint
iommu/vt-d: Fix a bug in intel_iommu_iova_to_phys() for huge page
pinctrl: meson-gxl: fix GPIOX sdio pins
pinctrl: core: Remove extra kref_get which blocks hogs being freed
nl80211: add missing attribute validation for critical protocol indication
nl80211: add missing attribute validation for beacon report scanning
nl80211: add missing attribute validation for channel switch
netfilter: cthelper: add missing attribute validation for cthelper
netfilter: nft_payload: add missing attribute validation for payload csum flags
iommu/vt-d: Fix the wrong printing in RHSA parsing
iommu/vt-d: Ignore devices with out-of-spec domain number
i2c: acpi: put device when verifying client fails
ipv6: restrict IPV6_ADDRFORM operation
net/smc: check for valid ib_client_data
efi: Add a sanity check to efivar_store_raw()
batman-adv: Avoid spurious warnings from bat_v neigh_cmp implementation
batman-adv: Always initialize fragment header priority
batman-adv: Fix check of retrieved orig_gw in batadv_v_gw_is_eligible
batman-adv: Fix lock for ogm cnt access in batadv_iv_ogm_calc_tq
batman-adv: Fix internal interface indices types
batman-adv: update data pointers after skb_cow()
batman-adv: Avoid race in TT TVLV allocator helper
batman-adv: Fix TT sync flags for intermediate TT responses
batman-adv: prevent TT request storms by not sending inconsistent TT TLVLs
batman-adv: Fix debugfs path for renamed hardif
batman-adv: Fix debugfs path for renamed softif
batman-adv: Fix duplicated OGMs on NETDEV_UP
batman-adv: Avoid free/alloc race when handling OGM2 buffer
batman-adv: Avoid free/alloc race when handling OGM buffer
batman-adv: Don't schedule OGM for disabled interface
perf/amd/uncore: Replace manual sampling check with CAP_NO_INTERRUPT flag
ACPI: watchdog: Allow disabling WDAT at boot
HID: apple: Add support for recent firmware on Magic Keyboards
HID: i2c-hid: add Trekstor Surfbook E11B to descriptor override
cfg80211: check reg_rule for NULL in handle_channel_custom()
scsi: libfc: free response frame from GPN_ID
net: usb: qmi_wwan: restore mtu min/max values after raw_ip switch
net: ks8851-ml: Fix IRQ handling and locking
mac80211: rx: avoid RCU list traversal under mutex
signal: avoid double atomic counter increments for user accounting
slip: not call free_netdev before rtnl_unlock in slip_open
hinic: fix a bug of setting hw_ioctxt
net: rmnet: fix NULL pointer dereference in rmnet_newlink()
jbd2: fix data races at struct journal_head
ARM: 8957/1: VDSO: Match ARMv8 timer in cntvct_functional()
ARM: 8958/1: rename missed uaccess .fixup section
mm: slub: add missing TID bump in kmem_cache_alloc_bulk()
ipv4: ensure rcu_read_lock() in cipso_v4_error()
Linux 4.14.174
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
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commit d9a9f4849fe0c9d560851ab22a85a666cddfdd24 upstream.
several iterations of ->atomic_open() calling conventions ago, we
used to need fput() if ->atomic_open() failed at some point after
successful finish_open(). Now (since 2016) it's not needed -
struct file carries enough state to make fput() work regardless
of the point in struct file lifecycle and discarding it on
failure exits in open() got unified. Unfortunately, I'd missed
the fact that we had an instance of ->atomic_open() (cifs one)
that used to need that fput(), as well as the stale comment in
finish_open() demanding such late failure handling. Trivially
fixed...
Fixes: fe9ec8291fca "do_last(): take fput() on error after opening to out:"
Cc: stable@kernel.org # v4.7+
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The vmstat NR_KERNEL_MISC_RECLAIMABLE counter is for kernel non-slab
allocations that can be reclaimed via shrinker. In /proc/meminfo, we can
show the sum of all reclaimable kernel allocations (including slab) as
"KReclaimable". Add the same counter also to per-node meminfo under /sys
With this counter, users will have more complete information about kernel
memory usage. Non-slab reclaimable pages (currently just the ION
allocator) will not be missing from /proc/meminfo, making users wonder
where part of their memory went. More precisely, they already appear in
MemAvailable, but without the new counter, it's not obvious why the value
in MemAvailable doesn't fully correspond with the sum of other counters
participating in it.
Link: http://lkml.kernel.org/r/20180731090649.16028-6-vbabka@suse.cz
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Roman Gushchin <guro@fb.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Laura Abbott <labbott@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Vijayanand Jitta <vjitta@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 61f94e18de94f79abaad3bb83549ff78923ac785)
Bug: 138148041
Test: verify KReclaimable accounting after ION allocation+deallocation
Change-Id: I646e1a4f1217de902c70466906ca053c6c825185
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Yaroslav Furman <yaro330@gmail.com>
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Currently, we account page tables separately for each page table level,
but that's redundant -- we only make use of total memory allocated to
page tables for oom_badness calculation. We also provide the
information to userspace, but it has dubious value there too.
This patch switches page table accounting to single counter.
mm->pgtables_bytes is now used to account all page table levels. We use
bytes, because page table size for different levels of page table tree
may be different.
The change has user-visible effect: we don't have VmPMD and VmPUD
reported in /proc/[pid]/status. Not sure if anybody uses them. (As
alternative, we can always report 0 kB for them.)
OOM-killer report is also slightly changed: we now report pgtables_bytes
instead of nr_ptes, nr_pmd, nr_puds.
Apart from reducing number of counters per-mm, the benefit is that we
now calculate oom_badness() more correctly for machines which have
different size of page tables depending on level or where page tables
are less than a page in size.
The only downside can be debuggability because we do not know which page
table level could leak. But I do not remember many bugs that would be
caught by separate counters so I wouldn't lose sleep over this.
[akpm@linux-foundation.org: fix mm/huge_memory.c]
Link: http://lkml.kernel.org/r/20171006100651.44742-2-kirill.shutemov@linux.intel.com
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Michal Hocko <mhocko@suse.com>
[kirill.shutemov@linux.intel.com: fix build]
Link: http://lkml.kernel.org/r/20171016150113.ikfxy3e7zzfvsr4w@black.fi.intel.com
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Danny Lin <danny@kdrag0n.dev>
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* refs/heads/tmp-80571db:
Revert "ANDROID: input: keychord: Add keychord driver"
Revert "ANDROID: input: keychord: log when keychord triggered"
Revert "ANDROID: input: keychord: Fix a slab out-of-bounds read."
Revert "ANDROID: input: keychord: Fix races in keychord_write."
Revert "ANDROID: input: keychord: Fix for a memory leak in keychord."
ANDROID: drop CONFIG_INPUT_KEYCHORD from cuttlefish
UPSTREAM: filemap: add a comment about FAULT_FLAG_RETRY_NOWAIT behavior
BACKPORT: filemap: drop the mmap_sem for all blocking operations
BACKPORT: filemap: kill page_cache_read usage in filemap_fault
UPSTREAM: filemap: pass vm_fault to the mmap ra helpers
ANDROID: Remove Android paranoid check for socket creation
BACKPORT: mm/debug.c: provide useful debugging information for VM_BUG
UPSTREAM: x86/alternative: Print unadorned pointers
UPSTREAM: trace_uprobe: Display correct offset in uprobe_events
UPSTREAM: usercopy: Remove pointer from overflow report
UPSTREAM: Do not hash userspace addresses in fault handlers
UPSTREAM: mm/slab.c: do not hash pointers when debugging slab
UPSTREAM: kasan: use %px to print addresses instead of %p
UPSTREAM: vsprintf: add printk specifier %px
UPSTREAM: printk: hash addresses printed with %p
UPSTREAM: vsprintf: refactor %pK code out of pointer()
UPSTREAM: docs: correct documentation for %pK
ANDROID: binder: remove extra declaration left after backport
FROMGIT: binder: fix BUG_ON found by selinux-testsuite
Linux 4.14.109
ath10k: avoid possible string overflow
power: supply: charger-manager: Fix incorrect return value
pwm-backlight: Enable/disable the PWM before/after LCD enable toggle.
sched/cpufreq/schedutil: Fix error path mutex unlock
rtc: Fix overflow when converting time64_t to rtc_time
PCI: endpoint: Use EPC's device in dma_alloc_coherent()/dma_free_coherent()
PCI: designware-ep: Read-only registers need DBI_RO_WR_EN to be writable
PCI: designware-ep: dw_pcie_ep_set_msi() should only set MMC bits
scsi: ufs: fix wrong command type of UTRD for UFSHCI v2.1
USB: core: only clean up what we allocated
lib/int_sqrt: optimize small argument
ALSA: hda - Enforces runtime_resume after S3 and S4 for each codec
ALSA: hda - Record the current power state before suspend/resume calls
locking/lockdep: Add debug_locks check in __lock_downgrade()
x86/unwind: Add hardcoded ORC entry for NULL
x86/unwind: Handle NULL pointer calls better in frame unwinder
netfilter: ebtables: remove BUGPRINT messages
drm: Reorder set_property_atomic to avoid returning with an active ww_ctx
Bluetooth: hci_ldisc: Postpone HCI_UART_PROTO_READY bit set in hci_uart_set_proto()
Bluetooth: hci_ldisc: Initialize hci_dev before open()
Bluetooth: Fix decrementing reference count twice in releasing socket
Bluetooth: hci_uart: Check if socket buffer is ERR_PTR in h4_recv_buf()
media: v4l2-ctrls.c/uvc: zero v4l2_event
ext4: brelse all indirect buffer in ext4_ind_remove_space()
ext4: fix data corruption caused by unaligned direct AIO
ext4: fix NULL pointer dereference while journal is aborted
ALSA: x86: Fix runtime PM for hdmi-lpe-audio
objtool: Move objtool_file struct off the stack
perf probe: Fix getting the kernel map
futex: Ensure that futex address is aligned in handle_futex_death()
scsi: ibmvscsi: Fix empty event pool access during host removal
scsi: ibmvscsi: Protect ibmvscsi_head from concurrent modificaiton
MIPS: Fix kernel crash for R6 in jump label branch function
MIPS: Ensure ELF appended dtb is relocated
mips: loongson64: lemote-2f: Add IRQF_NO_SUSPEND to "cascade" irqaction.
udf: Fix crash on IO error during truncate
libceph: wait for latest osdmap in ceph_monc_blacklist_add()
iommu/amd: fix sg->dma_address for sg->offset bigger than PAGE_SIZE
drm/vmwgfx: Don't double-free the mode stored in par->set_mode
mmc: pxamci: fix enum type confusion
ANDROID: dm-bow: Fix 32 bit compile errors
ANDROID: Add dm-bow to cuttlefish configuration
UPSTREAM: binder: fix handling of misaligned binder object
UPSTREAM: binder: fix sparse issue in binder_alloc_selftest.c
BACKPORT: binder: use userspace pointer as base of buffer space
UPSTREAM: binder: fix kerneldoc header for struct binder_buffer
BACKPORT: binder: remove user_buffer_offset
UPSTREAM: binder: remove kernel vm_area for buffer space
UPSTREAM: binder: avoid kernel vm_area for buffer fixups
BACKPORT: binder: add function to copy binder object from buffer
BACKPORT: binder: add functions to copy to/from binder buffers
UPSTREAM: binder: create userspace-to-binder-buffer copy function
ANDROID: dm-bow: backport to 4.14
ANDROID: dm-bow: Add dm-bow feature
f2fs: set pin_file under CAP_SYS_ADMIN
f2fs: fix to avoid deadlock in f2fs_read_inline_dir()
f2fs: fix to adapt small inline xattr space in __find_inline_xattr()
f2fs: fix to do sanity check with inode.i_inline_xattr_size
f2fs: give some messages for inline_xattr_size
f2fs: don't trigger read IO for beyond EOF page
f2fs: fix to add refcount once page is tagged PG_private
f2fs: remove wrong comment in f2fs_invalidate_page()
f2fs: fix to use kvfree instead of kzfree
f2fs: print more parameters in trace_f2fs_map_blocks
f2fs: trace f2fs_ioc_shutdown
f2fs: fix to avoid deadlock of atomic file operations
f2fs: fix to dirty inode for i_mode recovery
f2fs: give random value to i_generation
f2fs: no need to take page lock in readdir
f2fs: fix to update iostat correctly in IPU path
f2fs: fix encrypted page memory leak
f2fs: make fault injection covering __submit_flush_wait()
f2fs: fix to retry fill_super only if recovery failed
f2fs: silence VM_WARN_ON_ONCE in mempool_alloc
f2fs: correct spelling mistake
f2fs: fix wrong #endif
f2fs: don't clear CP_QUOTA_NEED_FSCK_FLAG
f2fs: don't allow negative ->write_io_size_bits
f2fs: fix to check inline_xattr_size boundary correctly
Revert "f2fs: fix to avoid deadlock of atomic file operations"
Revert "f2fs: fix to check inline_xattr_size boundary correctly"
f2fs: do not use mutex lock in atomic context
f2fs: fix potential data inconsistence of checkpoint
f2fs: fix to avoid deadlock of atomic file operations
f2fs: fix to check inline_xattr_size boundary correctly
f2fs: jump to label 'free_node_inode' when failing from d_make_root()
f2fs: fix to document inline_xattr_size option
f2fs: fix to data block override node segment by mistake
f2fs: fix typos in code comments
f2fs: use xattr_prefix to wrap up
f2fs: sync filesystem after roll-forward recovery
f2fs: flush quota blocks after turnning it off
f2fs: avoid null pointer exception in dcc_info
f2fs: don't wake up too frequently, if there is lots of IOs
f2fs: try to keep CP_TRIMMED_FLAG after successful umount
f2fs: add quick mode of checkpoint=disable for QA
f2fs: run discard jobs when put_super
f2fs: fix to set sbi dirty correctly
f2fs: fix to initialize variable to avoid UBSAN/smatch warning
f2fs: UBSAN: set boolean value iostat_enable correctly
f2fs: add brackets for macros
f2fs: check if file namelen exceeds max value
f2fs: fix to trigger fsck if dirent.name_len is zero
f2fs: no need to check return value of debugfs_create functions
f2fs: export FS_NOCOW_FL flag to user
f2fs: check inject_rate validity during configuring
f2fs: remove set but not used variable 'err'
f2fs: fix compile warnings: 'struct *' declared inside parameter list
f2fs: change error code to -ENOMEM from -EINVAL
Conflicts:
drivers/md/Makefile
mm/filemap.c
net/ipv4/af_inet.c
Change-Id: Id050d9a819404a8af08f83bf7fcc5c5536980fe9
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
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* origin/upstream-f2fs-stable-linux-4.14.y:
f2fs: set pin_file under CAP_SYS_ADMIN
f2fs: fix to avoid deadlock in f2fs_read_inline_dir()
f2fs: fix to adapt small inline xattr space in __find_inline_xattr()
f2fs: fix to do sanity check with inode.i_inline_xattr_size
f2fs: give some messages for inline_xattr_size
f2fs: don't trigger read IO for beyond EOF page
f2fs: fix to add refcount once page is tagged PG_private
f2fs: remove wrong comment in f2fs_invalidate_page()
f2fs: fix to use kvfree instead of kzfree
f2fs: print more parameters in trace_f2fs_map_blocks
f2fs: trace f2fs_ioc_shutdown
f2fs: fix to avoid deadlock of atomic file operations
f2fs: fix to dirty inode for i_mode recovery
f2fs: give random value to i_generation
f2fs: no need to take page lock in readdir
f2fs: fix to update iostat correctly in IPU path
f2fs: fix encrypted page memory leak
f2fs: make fault injection covering __submit_flush_wait()
f2fs: fix to retry fill_super only if recovery failed
f2fs: silence VM_WARN_ON_ONCE in mempool_alloc
f2fs: correct spelling mistake
f2fs: fix wrong #endif
f2fs: don't clear CP_QUOTA_NEED_FSCK_FLAG
f2fs: don't allow negative ->write_io_size_bits
f2fs: fix to check inline_xattr_size boundary correctly
Revert "f2fs: fix to avoid deadlock of atomic file operations"
Revert "f2fs: fix to check inline_xattr_size boundary correctly"
f2fs: do not use mutex lock in atomic context
f2fs: fix potential data inconsistence of checkpoint
f2fs: fix to avoid deadlock of atomic file operations
f2fs: fix to check inline_xattr_size boundary correctly
f2fs: jump to label 'free_node_inode' when failing from d_make_root()
f2fs: fix to document inline_xattr_size option
f2fs: fix to data block override node segment by mistake
f2fs: fix typos in code comments
f2fs: use xattr_prefix to wrap up
f2fs: sync filesystem after roll-forward recovery
f2fs: flush quota blocks after turnning it off
f2fs: avoid null pointer exception in dcc_info
f2fs: don't wake up too frequently, if there is lots of IOs
f2fs: try to keep CP_TRIMMED_FLAG after successful umount
f2fs: add quick mode of checkpoint=disable for QA
f2fs: run discard jobs when put_super
f2fs: fix to set sbi dirty correctly
f2fs: fix to initialize variable to avoid UBSAN/smatch warning
f2fs: UBSAN: set boolean value iostat_enable correctly
f2fs: add brackets for macros
f2fs: check if file namelen exceeds max value
f2fs: fix to trigger fsck if dirent.name_len is zero
f2fs: no need to check return value of debugfs_create functions
f2fs: export FS_NOCOW_FL flag to user
f2fs: check inject_rate validity during configuring
f2fs: remove set but not used variable 'err'
f2fs: fix compile warnings: 'struct *' declared inside parameter list
f2fs: change error code to -ENOMEM from -EINVAL
Change-Id: Id02c25e6dafae1bc8cb3a1b047a421355073202e
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
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We missed to add document for inline_xattr_size mount option in f2fs.txt,
add it.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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* refs/heads/tmp-a895cea:
Revert "ANDROID: sched: Fix share_cap_level detect"
ANDROID: cuttlefish_defconfig: Add support for AC97 audio
ANDROID: overlayfs: override_creds=off option bypass creator_cred
ANDROID: cuttlefish: enable CONFIG_NETFILTER_XT_TARGET_CT=y
Revert "ANDROID: arm: process: Add display of memory around registers when displaying regs."
Revert "ANDROID: overlayfs: override_creds=off option bypass creator_cred"
ANDROID: overlayfs: override_creds=off option bypass creator_cred
FROMGIT: binder: create node flag to request sender's security context
ANDROID: revert "net: ipv4: sysfs_net_ipv4: Add sysfs-based knobs for controlling TCP window size"
ANDROID: cpufreq: times: optimize proc files
ANDROID: sched/walt: Fix the potential bad unlock issue
ANDROID: sched/fair: Don't double account RT util in boosted_cpu_util()
ANDROID: cpufreq: times: record fast switch frequency transitions
ANDROID: DEBUG: fix build error when Macro DEBUG_EENV_DECISIONS is defined
ANDROID: cuttlefish: enable CONFIG_NET_SCH_NETEM=y
ANDROID: sched/walt: Fix lockdep assert issue
Add XFRM-I to cuttlefish defconfigs
ANDROID: Move from clang r346389b to r349610.
ANDROID: Turn xt_owner module on
ANDROID: Remove xt_qtaguid module from new kernels.
UPSTREAM: virt_wifi: fix error return code in virt_wifi_newlink()
ANDROID: arm64: lse: fix LSE atomics with LTO
UPSTREAM: net: dev_is_mac_header_xmit() true for ARPHRD_RAWIP
UPSTREAM: binder: filter out nodes when showing binder procs
UPSTREAM: xfrm: Make set-mark default behavior backward compatible
ANDROID: cuttlefish_defconfig: Enable CONFIG_RTC_HCTOSYS
ANDROID: sched/rt: fix the problem that rt_rq's util is always zero.
ANDROID: sched: Fix share_cap_level detect
ANDROID: cfi: fix shadow rebasing
UPSTREAM: dm: do not allow readahead to limit IO size
UPSTREAM: ppp: Move PFC decompression to PPP generic layer
UPSTREAM: l2tp: Add protocol field decompression
BACKPORT: l2tp: remove ->recv_payload_hook
UPSTREAM: zram: idle writeback fixes and cleanup
UPSTREAM: zram: writeback throttle
UPSTREAM: zram: add bd_stat statistics
UPSTREAM: zram: support idle/huge page writeback
UPSTREAM: zram: introduce ZRAM_IDLE flag
UPSTREAM: zram: refactor flags and writeback stuff
UPSTREAM: zram: fix lockdep warning of free block handling
ANDROID: cuttlefish_defconfig: Enable vsock options
ANDROID: mnt: Propagate remount correctly
UPSTREAM: loop: drop caches if offset or block_size are changed
UPSTREAM: crypto: adiantum - initialize crypto_spawn::inst
UPSTREAM: crypto: adiantum - fix leaking reference to hash algorithm
UPSTREAM: crypto: adiantum - adjust some comments to match latest paper
UPSTREAM: crypto: adiantum - propagate CRYPTO_ALG_ASYNC flag to instance
ANDROID: cuttlefish: enable CONFIG_NET_CLS_BPF=y
Makefile: Fix 4.14.93 resolution
ANDROID: cuttlefish_defconfig: remove DM_VERITY_HASH_PREFETCH_MIN_SIZE
Revert "ANDROID: dm: verity: add minimum prefetch size"
ANDROID: f2fs: Complement "android_fs" tracepoint of read path
Conflicts:
Documentation/ABI/testing/sysfs-block-zram
Documentation/blockdev/zram.txt
Makefile
drivers/block/zram/zram_drv.c
drivers/block/zram/zram_drv.h
drivers/md/Kconfig
include/uapi/linux/android/binder.h
kernel/sched/core.c
kernel/sched/cpufreq_schedutil.c
kernel/sched/fair.c
net/l2tp/l2tp_ppp.c
net/netfilter/xt_qtaguid.c
Change-Id: Ie4e343210602d26c0319138deb71ff0788e90a87
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
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By default, all access to the upper, lower and work directories is the
recorded mounter's MAC and DAC credentials. The incoming accesses are
checked against the caller's credentials.
If the principles of least privilege are applied, the mounter's
credentials might not overlap the credentials of the caller's when
accessing the overlayfs filesystem. For example, a file that a lower
DAC privileged caller can execute, is MAC denied to the generally
higher DAC privileged mounter, to prevent an attack vector.
We add the option to turn off override_creds in the mount options; all
subsequent operations after mount on the filesystem will be only the
caller's credentials. The module boolean parameter and mount option
override_creds is also added as a presence check for this "feature",
existence of /sys/module/overlay/parameters/override_creds.
It was not always this way. Circa 4.6 there was no recorded mounter's
credentials, instead privileged access to upper or work directories
were temporarily increased to perform the operations. The MAC
(selinux) policies were caller's in all cases. override_creds=off
partially returns us to this older access model minus the insecure
temporary credential increases. This is to permit use in a system
with non-overlapping security models for each executable including
the agent that mounts the overlayfs filesystem. In Android
this is the case since init, which performs the mount operations,
has a minimal MAC set of privileges to reduce any attack surface,
and services that use the content have a different set of MAC
privileges (eg: read, for vendor labelled configuration, execute for
vendor libraries and modules). The caveats are not a problem in
the Android usage model, however they should be fixed for
completeness and for general use in time.
Signed-off-by: Mark Salyzyn <salyzyn@android.com>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Amir Goldstein <amir73il@gmail.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Cc: linux-unionfs@vger.kernel.org
Cc: linux-doc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: kernel-team@android.com
---
v9:
- Add to the caveats
v8:
- drop pr_warn message after straw poll to remove it.
- added a use case in the commit message
v7:
- change name of internal parameter to ovl_override_creds_def
- report override_creds only if different than default
v6:
- Drop CONFIG_OVERLAY_FS_OVERRIDE_CREDS.
- Do better with the documentation.
- pr_warn message adjusted to report consequences.
v5:
- beefed up the caveats in the Documentation
- Is dependent on
"overlayfs: check CAP_DAC_READ_SEARCH before issuing exportfs_decode_fh"
"overlayfs: check CAP_MKNOD before issuing vfs_whiteout"
- Added prwarn when override_creds=off
v4:
- spelling and grammar errors in text
v3:
- Change name from caller_credentials / creator_credentials to the
boolean override_creds.
- Changed from creator to mounter credentials.
- Updated and fortified the documentation.
- Added CONFIG_OVERLAY_FS_OVERRIDE_CREDS
v2:
- Forward port changed attr to stat, resulting in a build error.
- altered commit message.
Signed-off-by: Mark Salyzyn <salyzyn@google.com>
(cherry picked from https://lore.kernel.org/patchwork/patch/1009299)
Bug: 109821005
Bug: 112955896
Bug: 127298877
Change-Id: I1d99298ec5e71174734481be3497763c6b9d42e1
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This reverts commit 9a2d2a45b6c4653a402e5a151d566297704691c3.
Reason for revert: <INSERT REASONING HERE>
Change-Id: I1b96d1111b993ca23061844dd33573c16d449248
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By default, all access to the upper, lower and work directories is the
recorded mounter's MAC and DAC credentials. The incoming accesses are
checked against the caller's credentials.
If the principles of least privilege are applied, the mounter's
credentials might not overlap the credentials of the caller's when
accessing the overlayfs filesystem. For example, a file that a lower
DAC privileged caller can execute, is MAC denied to the generally
higher DAC privileged mounter, to prevent an attack vector.
We add the option to turn off override_creds in the mount options; all
subsequent operations after mount on the filesystem will be only the
caller's credentials. The module boolean parameter and mount option
override_creds is also added as a presence check for this "feature",
existence of /sys/module/overlay/parameters/override_creds.
It was not always this way. Circa 4.6 there was no recorded mounter's
credentials, instead privileged access to upper or work directories
were temporarily increased to perform the operations. The MAC
(selinux) policies were caller's in all cases. override_creds=off
partially returns us to this older access model minus the insecure
temporary credential increases. This is to permit use in a system
with non-overlapping security models for each executable including
the agent that mounts the overlayfs filesystem. In Android
this is the case since init, which performs the mount operations,
has a minimal MAC set of privileges to reduce any attack surface,
and services that use the content have a different set of MAC
privileges (eg: read, for vendor labelled configuration, execute for
vendor libraries and modules). The caveats are not a problem in
the Android usage model, however they should be fixed for
completeness and for general use in time.
Signed-off-by: Mark Salyzyn <salyzyn@android.com>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Amir Goldstein <amir73il@gmail.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Cc: linux-unionfs@vger.kernel.org
Cc: linux-doc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: kernel-team@android.com
---
v9:
- Add to the caveats
v8:
- drop pr_warn message after straw poll to remove it.
- added a use case in the commit message
v7:
- change name of internal parameter to ovl_override_creds_def
- report override_creds only if different than default
v6:
- Drop CONFIG_OVERLAY_FS_OVERRIDE_CREDS.
- Do better with the documentation.
- pr_warn message adjusted to report consequences.
v5:
- beefed up the caveats in the Documentation
- Is dependent on
"overlayfs: check CAP_DAC_READ_SEARCH before issuing exportfs_decode_fh"
"overlayfs: check CAP_MKNOD before issuing vfs_whiteout"
- Added prwarn when override_creds=off
v4:
- spelling and grammar errors in text
v3:
- Change name from caller_credentials / creator_credentials to the
boolean override_creds.
- Changed from creator to mounter credentials.
- Updated and fortified the documentation.
- Added CONFIG_OVERLAY_FS_OVERRIDE_CREDS
v2:
- Forward port changed attr to stat, resulting in a build error.
- altered commit message.
Signed-off-by: Mark Salyzyn <salyzyn@google.com>
(cherry picked from https://lore.kernel.org/patchwork/patch/1009299)
Bug: 109821005
Bug: 112955896
Bug: 127298877
Change-Id: Ie43b0c7dfd64f4cfc27dfe5e1622ea01f3b000cf
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Changes in 4.14.96
ipv6: Consider sk_bound_dev_if when binding a socket to a v4 mapped address
mlxsw: spectrum: Disable lag port TX before removing it
mlxsw: spectrum_switchdev: Set PVID correctly during VLAN deletion
net, skbuff: do not prefer skb allocation fails early
qmi_wwan: add MTU default to qmap network interface
r8169: Add support for new Realtek Ethernet
ipv6: Take rcu_read_lock in __inet6_bind for mapped addresses
net: dsa: mv88x6xxx: mv88e6390 errata
gpio: pl061: Move irq_chip definition inside struct pl061
platform/x86: asus-wmi: Tell the EC the OS will handle the display off hotkey
e1000e: allow non-monotonic SYSTIM readings
writeback: don't decrement wb->refcnt if !wb->bdi
serial: set suppress_bind_attrs flag only if builtin
ALSA: oxfw: add support for APOGEE duet FireWire
x86/mce: Fix -Wmissing-prototypes warnings
MIPS: SiByte: Enable swiotlb for SWARM, LittleSur and BigSur
arm64: perf: set suppress_bind_attrs flag to true
usb: gadget: udc: renesas_usb3: add a safety connection way for forced_b_device
selinux: always allow mounting submounts
rxe: IB_WR_REG_MR does not capture MR's iova field
jffs2: Fix use of uninitialized delayed_work, lockdep breakage
clk: imx: make mux parent strings const
pstore/ram: Do not treat empty buffers as valid
powerpc/xmon: Fix invocation inside lock region
powerpc/pseries/cpuidle: Fix preempt warning
media: firewire: Fix app_info parameter type in avc_ca{,_app}_info
media: venus: core: Set dma maximum segment size
net: call sk_dst_reset when set SO_DONTROUTE
scsi: target: use consistent left-aligned ASCII INQUIRY data
selftests: do not macro-expand failed assertion expressions
clk: imx6q: reset exclusive gates on init
arm64: Fix minor issues with the dcache_by_line_op macro
kconfig: fix file name and line number of warn_ignored_character()
kconfig: fix memory leak when EOF is encountered in quotation
mmc: atmel-mci: do not assume idle after atmci_request_end
btrfs: improve error handling of btrfs_add_link
tty/serial: do not free trasnmit buffer page under port lock
perf intel-pt: Fix error with config term "pt=0"
perf svghelper: Fix unchecked usage of strncpy()
perf parse-events: Fix unchecked usage of strncpy()
netfilter: ipt_CLUSTERIP: check MAC address when duplicate config is set
dm crypt: use u64 instead of sector_t to store iv_offset
dm kcopyd: Fix bug causing workqueue stalls
tools lib subcmd: Don't add the kernel sources to the include path
dm snapshot: Fix excessive memory usage and workqueue stalls
quota: Lock s_umount in exclusive mode for Q_XQUOTA{ON,OFF} quotactls.
clocksource/drivers/integrator-ap: Add missing of_node_put()
ALSA: bebob: fix model-id of unit for Apogee Ensemble
sysfs: Disable lockdep for driver bind/unbind files
IB/usnic: Fix potential deadlock
scsi: smartpqi: correct lun reset issues
scsi: smartpqi: call pqi_free_interrupts() in pqi_shutdown()
scsi: megaraid: fix out-of-bound array accesses
ocfs2: fix panic due to unrecovered local alloc
mm/page-writeback.c: don't break integrity writeback on ->writepage() error
mm/swap: use nr_node_ids for avail_lists in swap_info_struct
mm, proc: be more verbose about unstable VMA flags in /proc/<pid>/smaps
nfs: fix a deadlock in nfs client initialization
ipmi:pci: Blacklist a Realtek "IPMI" device
cifs: allow disabling insecure dialects in the config
drm/i915/gvt: Fix mmap range check
PCI: dwc: Move interrupt acking into the proper callback
ipmi:ssif: Fix handling of multi-part return messages
Linux 4.14.96
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
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* refs/heads/tmp-fab7352:
f2fs: don't access node/meta inode mapping after iput
f2fs: wait on atomic writes to count F2FS_CP_WB_DATA
ANDROID: sched/fair: correct pelt load information in sched-pelt.h
f2fs: sanity check of xattr entry size
f2fs: fix use-after-free issue when accessing sbi->stat_info
f2fs: check PageWriteback flag for ordered case
f2fs: fix validation of the block count in sanity_check_raw_super
f2fs: fix missing unlock(sbi->gc_mutex)
f2fs: fix to dirty inode synchronously
f2fs: clean up structure extent_node
f2fs: fix block address for __check_sit_bitmap
f2fs: fix sbi->extent_list corruption issue
f2fs: clean up checkpoint flow
f2fs: flush stale issued discard candidates
f2fs: correct wrong spelling, issing_*
f2fs: use kvmalloc, if kmalloc is failed
f2fs: remove redundant comment of unused wio_mutex
f2fs: fix to reorder set_page_dirty and wait_on_page_writeback
f2fs: clear PG_writeback if IPU failed
f2fs: add an ioctl() to explicitly trigger fsck later
f2fs: avoid frequent costly fsck triggers
f2fs: fix m_may_create to make OPU DIO write correctly
f2fs: fix to update new block address correctly for OPU
f2fs: adjust trace print in f2fs_get_victim() to cover all paths
f2fs: fix to allow node segment for GC by ioctl path
f2fs: make "f2fs_fault_name[]" const char *
f2fs: read page index before freeing
f2fs: fix wrong return value of f2fs_acl_create
f2fs: avoid build warn of fall_through
f2fs: fix race between write_checkpoint and write_begin
f2fs: check memory boundary by insane namelen
f2fs: only flush the single temp bio cache which owns the target page
f2fs: fix out-place-update DIO write
f2fs: fix to be aware discard/preflush/dio command in is_idle()
f2fs: add to account direct IO
f2fs: move dir data flush to write checkpoint process
f2fs: change segment to section in f2fs_ioc_gc_range
f2fs: export migration_granularity sysfs entry
f2fs: support subsectional garbage collection
f2fs: introduce __is_large_section() for cleanup
f2fs: clean up f2fs_sb_has_##feature_name
f2fs: remove codes of unused wio_mutex
f2fs: fix count of seg_freed to make sec_freed correct
f2fs: fix to account preflush command for noflush_merge mode
f2fs: avoid GC causing encrypted file corrupted
ANDROID: cuttlefish_defconfig: Enable VIRTIO_INPUT
ANDROID: Revert fs/squashfs back to linux-4.14.y
BACKPORT: mm: Add an F_SEAL_FUTURE_WRITE seal to memfd
FROMGIT: dm verity: log the hash algorithm implementation
FROMGIT: dm crypt: log the encryption algorithm implementation
ANDROID: sched: Clean-up SchedTune documentation
ANDROID: sched/events: Fix out of bound memory access
ANDROID: revert all remaining hisi_thermal.c changes
ANDROID: modpost: add an exception for CFI stubs
FROMGIT: modpost: validate symbol names also in find_elf_symbol
ANDROID: cuttlefish_defconfig: Enable VIRT_WIFI
FROMGIT, BACKPORT: mac80211-next: rtnetlink wifi simulation device
ANDROID: cpufreq: times: add /proc/uid_concurrent_{active,policy}_time
ANDROID: cuttlefish_defconfig: Enable CONFIG_ARM64_LSE_ATOMICS
ANDROID: Move from clang r328903 to r346389b.
Fix merge issue from 4.14.85.
ANDROID: cuttlefish_defconfig: Enable CONFIG_CRYPTO_ADIANTUM
BACKPORT, FROMGIT: fscrypt: add Adiantum support
BACKPORT, FROMGIT: crypto: adiantum - add Adiantum support
FROMGIT: crypto: arm/nhpoly1305 - add NEON-accelerated NHPoly1305
BACKPORT, FROMGIT: crypto: nhpoly1305 - add NHPoly1305 support
FROMGIT: crypto: poly1305 - add Poly1305 core API
FROMGIT: crypto: poly1305 - use structures for key and accumulator
FROMGIT: crypto: arm/chacha - add XChaCha12 support
FROMGIT: crypto: arm/chacha20 - refactor to allow varying number of rounds
FROMGIT: crypto: arm/chacha20 - add XChaCha20 support
FROMGIT: crypto: arm/chacha20 - limit the preemption-disabled section
BACKPORT, FROMGIT: crypto: chacha - add XChaCha12 support
BACKPORT, FROMGIT: crypto: chacha20-generic - refactor to allow varying number of rounds
BACKPORT, FROMGIT: crypto: chacha20-generic - add XChaCha20 support
FROMGIT: crypto: chacha20-generic - don't unnecessarily use atomic walk
FROMGIT: crypto: chacha20-generic - add HChaCha20 library function
FROMGIT: crypto: arm/aes - add some hardening against cache-timing attacks
UPSTREAM: crypto: arm/aes-cipher - move S-box to .rodata section
UPSTREAM: crypto: arm/chacha20 - faster 8-bit rotations and other optimizations
UPSTREAM: crypto: arm/chacha20 - always use vrev for 16-bit rotates
UPSTREAM: crypto: poly1305 - use unaligned access macros to output digest
UPSTREAM: crypto: chacha20 - Fix chacha20_block() keystream alignment (again)
UPSTREAM: crypto: chacha20 - use rol32() macro from bitops.h
UPSTREAM: crypto: chacha20 - Fix keystream alignment for chacha20_block()
UPSTREAM: crypto: chacha20 - Remove cra_alignmask
UPSTREAM: crypto: chacha20 - Use unaligned access macros when loading key and IV
UPSTREAM: crypto: chacha20 - Fix unaligned access when loading constants
BACKPORT: sched/fair: Fix cpu_util_wake() for 'execl' type workloads
ANDROID: arm64 defconfig / build config for cuttlefish
ANDROID: Kbuild, LLVMLinux: allow overriding clang target triple
ANDROID: sdcardfs: Add option to not link obb
ANDROID: sdcardfs: Add sandbox
Revert "proc: Convert proc_mount to use mount_ns."
ANDROID: sched/debug: Make Energy Model read-only
ANDROID: zram: set comp_len to PAGE_SIZE when page is huge
Revert "ANDROID: Kbuild, LLVMLinux: allow overriding clang target triple"
UPSTREAM: arm64: Expose support for optional ARMv8-A features
Conflicts:
Makefile
drivers/block/zram/zram_drv.c
drivers/net/wireless/Kconfig
drivers/net/wireless/Makefile
fs/crypto/fscrypt_private.h
fs/crypto/keyinfo.c
fs/f2fs/inode.c
fs/f2fs/super.c
include/uapi/linux/fs.h
kernel/sched/fair.c
Change-Id: Ib1a971f6893061a5db7cbc3c474981463685c3a9
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
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Add support for the Adiantum encryption mode to fscrypt. Adiantum is a
tweakable, length-preserving encryption mode with security provably
reducible to that of XChaCha12 and AES-256, subject to a security bound.
It's also a true wide-block mode, unlike XTS. See the paper
"Adiantum: length-preserving encryption for entry-level processors"
(https://eprint.iacr.org/2018/720.pdf) for more details. Also see
commit 059c2a4d8e16 ("crypto: adiantum - add Adiantum support").
On sufficiently long messages, Adiantum's bottlenecks are XChaCha12 and
the NH hash function. These algorithms are fast even on processors
without dedicated crypto instructions. Adiantum makes it feasible to
enable storage encryption on low-end mobile devices that lack AES
instructions; currently such devices are unencrypted. On ARM Cortex-A7,
on 4096-byte messages Adiantum encryption is about 4 times faster than
AES-256-XTS encryption; decryption is about 5 times faster.
In fscrypt, Adiantum is suitable for encrypting both file contents and
names. With filenames, it fixes a known weakness: when two filenames in
a directory share a common prefix of >= 16 bytes, with CTS-CBC their
encrypted filenames share a common prefix too, leaking information.
Adiantum does not have this problem.
Since Adiantum also accepts long tweaks (IVs), it's also safe to use the
master key directly for Adiantum encryption rather than deriving
per-file keys, provided that the per-file nonce is included in the IVs
and the master key isn't used for any other encryption mode. This
configuration saves memory and improves performance. A new fscrypt
policy flag is added to allow users to opt-in to this configuration.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
(cherry picked from commit 889645b87e96cecbdf7d76ab86447d1f1c6b41d3
https://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt.git master)
Conflicts:
Documentation/filesystems/fscrypt.rst
include/uapi/linux/fs.h
Bug: 112008522
Test: For regression testing, built the kernel for x86_64 KVM and ran
the encryption xfstests using kvm-xfstests:
kvm-xfstests -c ext4,f2fs -g encrypt
Tests for the Adiantum mode and "direct key" specifically aren't yet
included in xfstests, but I also tried it manually with the
following (run in the kvm-xfstests test appliance):
cd /
umount /vdc &> /dev/null
mkfs.f2fs -O encrypt -f /dev/vdc
mount /vdc
cd /vdc
rm -rf edir
mkdir edir
. ~/xfstests/common/encrypt
KEYCTL_PROG=keyctl
FSTYP=fscrypt
_new_session_keyring
k=$(_generate_encryption_key)
xfs_io -c "set_encpolicy -c 9 -n 9 -f 0x4 $k" edir/
cp -a /usr edir/
diff -r /usr edir/usr/
dmesg should show that Adiantum is being used:
fscrypt: Adiantum using implementation "adiantum(xchacha12-generic,aes-aesni,nhpoly1305-generic)"
Change-Id: I29ffaa7ef9cbd23d2f6ed428814c607227241ce9
Signed-off-by: Eric Biggers <ebiggers@google.com>
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* refs/heads/tmp-d4e5dea:
Revert "f2fs: avoid f2fs_bug_on if f2fs_get_meta_page_nofail got EIO"
Revert "f2fs: submit cached bio to avoid endless PageWriteback"
ANDROID: sdcardfs: Add option to drop unused dentries
f2fs: fix to keep project quota consistent
f2fs: guarantee journalled quota data by checkpoint
f2fs: cleanup dirty pages if recover failed
f2fs: fix data corruption issue with hardware encryption
f2fs: fix to recover inode->i_flags of inode block during POR
f2fs: spread f2fs_set_inode_flags()
f2fs: fix to spread clear_cold_data()
Revert "f2fs: fix to clear PG_checked flag in set_page_dirty()"
f2fs: account read IOs and use IO counts for is_idle
f2fs: fix to account IO correctly for cgroup writeback
f2fs: fix to account IO correctly
f2fs: remove request_list check in is_idle()
f2fs: allow to mount, if quota is failed
f2fs: update REQ_TIME in f2fs_cross_rename()
f2fs: do not update REQ_TIME in case of error conditions
f2fs: remove unneeded disable_nat_bits()
f2fs: remove unused sbi->trigger_ssr_threshold
f2fs: shrink sbi->sb_lock coverage in set_file_temperature()
f2fs: use rb_*_cached friends
f2fs: fix to recover cold bit of inode block during POR
f2fs: submit cached bio to avoid endless PageWriteback
f2fs: checkpoint disabling
f2fs: clear PageError on the read path
f2fs: allow out-place-update for direct IO in LFS mode
f2fs: refactor ->page_mkwrite() flow
Revert: "f2fs: check last page index in cached bio to decide submission"
f2fs: support superblock checksum
f2fs: add to account skip count of background GC
f2fs: add to account meta IO
f2fs: keep lazytime on remount
f2fs: fix missing up_read
f2fs: return correct errno in f2fs_gc
f2fs: avoid f2fs_bug_on if f2fs_get_meta_page_nofail got EIO
f2fs: mark inode dirty explicitly in recover_inode()
f2fs: fix to recover inode's crtime during POR
f2fs: fix to recover inode's i_gc_failures during POR
f2fs: fix to recover inode's i_flags during POR
f2fs: fix to recover inode's project id during POR
f2fs: update i_size after DIO completion
f2fs: report ENOENT correctly in f2fs_rename
f2fs: fix remount problem of option io_bits
f2fs: fix to recover inode's uid/gid during POR
f2fs: avoid infinite loop in f2fs_alloc_nid
f2fs: add new idle interval timing for discard and gc paths
f2fs: split IO error injection according to RW
f2fs: add SPDX license identifiers
f2fs: surround fault_injection related option parsing using CONFIG_F2FS_FAULT_INJECTION
f2fs: fix setattr project check upon fssetxattr ioctl
f2fs: avoid sleeping under spin_lock
f2fs: plug readahead IO in readdir()
f2fs: fix to do sanity check with current segment number
f2fs: fix memory leak of percpu counter in fill_super()
f2fs: fix memory leak of write_io in fill_super()
f2fs: cache NULL when both default_acl and acl are NULL
f2fs: fix to flush all dirty inodes recovered in readonly fs
f2fs: report error if quota off error during umount
f2fs: submit bio after shutdown
f2fs: avoid wrong decrypted data from disk
Revert "f2fs: use printk_ratelimited for f2fs_msg"
f2fs: fix unnecessary periodic wakeup of discard thread when dev is busy
f2fs: fix to avoid NULL pointer dereference on se->discard_map
f2fs: add additional sanity check in f2fs_acl_from_disk()
Revert "ANDROID: Revert "arm64: move ELF_ET_DYN_BASE to 4GB / 4MB""
Revert "ANDROID: Revert "arm: move ELF_ET_DYN_BASE to 4MB""
ANDROID: sched/fair: initialise util_est values to 0 on fork
Revert "FROMGIT: crypto: speck - add support for the Speck block cipher"
Revert "FROMGIT: crypto: speck - export common helpers"
Revert "FROMGIT: crypto: arm/speck - add NEON-accelerated implementation of Speck-XTS"
Revert "FROMGIT: crypto: speck - add test vectors for Speck128-XTS"
Revert "FROMGIT: crypto: speck - add test vectors for Speck64-XTS"
Revert "FROMLIST: crypto: arm64/speck - add NEON-accelerated implementation of Speck-XTS"
Revert "fscrypt: add Speck128/256 support"
ANDROID: x86_64_cuttlefish_defconfig: disable CONFIG_MEMORY_STATE_TIME
ANDROID: sdcardfs: Change current->fs under lock
Revert "ANDROID: sdcardfs: Change current->fs under lock"
ANDROID: sdcardfs: Change current->fs under lock
ANDROID: sdcardfs: Don't use OVERRIDE_CRED macro
ANDROID: arm64: kbuild: only specify code model with LTO for modules
ANDROID: kbuild: disable LTO_CLANG with KASAN
Conflicts:
fs/crypto/fscrypt_private.h
fs/crypto/keyinfo.c
fs/f2fs/data.c
fs/f2fs/f2fs.h
fs/f2fs/file.c
fs/f2fs/inode.c
fs/f2fs/recovery.c
fs/f2fs/segment.c
fs/f2fs/super.c
Change-Id: I03c51d9093de87ae3ababda419a4d436bc637517
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
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* origin/upstream-f2fs-stable-linux-4.14.y:
f2fs: fix to keep project quota consistent
f2fs: guarantee journalled quota data by checkpoint
f2fs: cleanup dirty pages if recover failed
f2fs: fix data corruption issue with hardware encryption
f2fs: fix to recover inode->i_flags of inode block during POR
f2fs: spread f2fs_set_inode_flags()
f2fs: fix to spread clear_cold_data()
Revert "f2fs: fix to clear PG_checked flag in set_page_dirty()"
f2fs: account read IOs and use IO counts for is_idle
f2fs: fix to account IO correctly for cgroup writeback
f2fs: fix to account IO correctly
f2fs: remove request_list check in is_idle()
f2fs: allow to mount, if quota is failed
f2fs: update REQ_TIME in f2fs_cross_rename()
f2fs: do not update REQ_TIME in case of error conditions
f2fs: remove unneeded disable_nat_bits()
f2fs: remove unused sbi->trigger_ssr_threshold
f2fs: shrink sbi->sb_lock coverage in set_file_temperature()
f2fs: use rb_*_cached friends
f2fs: fix to recover cold bit of inode block during POR
f2fs: submit cached bio to avoid endless PageWriteback
f2fs: checkpoint disabling
f2fs: clear PageError on the read path
f2fs: allow out-place-update for direct IO in LFS mode
f2fs: refactor ->page_mkwrite() flow
Revert: "f2fs: check last page index in cached bio to decide submission"
f2fs: support superblock checksum
f2fs: add to account skip count of background GC
f2fs: add to account meta IO
f2fs: keep lazytime on remount
f2fs: fix missing up_read
f2fs: return correct errno in f2fs_gc
f2fs: avoid f2fs_bug_on if f2fs_get_meta_page_nofail got EIO
f2fs: mark inode dirty explicitly in recover_inode()
f2fs: fix to recover inode's crtime during POR
f2fs: fix to recover inode's i_gc_failures during POR
f2fs: fix to recover inode's i_flags during POR
f2fs: fix to recover inode's project id during POR
f2fs: update i_size after DIO completion
f2fs: report ENOENT correctly in f2fs_rename
f2fs: fix remount problem of option io_bits
f2fs: fix to recover inode's uid/gid during POR
f2fs: avoid infinite loop in f2fs_alloc_nid
f2fs: add new idle interval timing for discard and gc paths
f2fs: split IO error injection according to RW
f2fs: add SPDX license identifiers
f2fs: surround fault_injection related option parsing using CONFIG_F2FS_FAULT_INJECTION
f2fs: fix setattr project check upon fssetxattr ioctl
f2fs: avoid sleeping under spin_lock
f2fs: plug readahead IO in readdir()
f2fs: fix to do sanity check with current segment number
f2fs: fix memory leak of percpu counter in fill_super()
f2fs: fix memory leak of write_io in fill_super()
f2fs: cache NULL when both default_acl and acl are NULL
f2fs: fix to flush all dirty inodes recovered in readonly fs
f2fs: report error if quota off error during umount
f2fs: submit bio after shutdown
f2fs: avoid wrong decrypted data from disk
Revert "f2fs: use printk_ratelimited for f2fs_msg"
f2fs: fix unnecessary periodic wakeup of discard thread when dev is busy
f2fs: fix to avoid NULL pointer dereference on se->discard_map
f2fs: add additional sanity check in f2fs_acl_from_disk()
Change-Id: I7556a341b50a9425bdec685a16347a71ae14fc42
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
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Note that, it requires "f2fs: return correct errno in f2fs_gc".
This adds a lightweight non-persistent snapshotting scheme to f2fs.
To use, mount with the option checkpoint=disable, and to return to
normal operation, remount with checkpoint=enable. If the filesystem
is shut down before remounting with checkpoint=enable, it will revert
back to its apparent state when it was first mounted with
checkpoint=disable. This is useful for situations where you wish to be
able to roll back the state of the disk in case of some critical
failure.
Signed-off-by: Daniel Rosenberg <drosen@google.com>
[Jaegeuk Kim: use SB_RDONLY instead of MS_RDONLY]
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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This patch adds to support injecting error for write IO, this can simulate
IO error like fail_make_request or dm_flakey does.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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This reverts commit e81950ade16d103cfebc396ef90cd00169561eb8.
Resolves conflicts with a later CL, 755a8a8a3bfc "fscrypt: log the
crypto algorithm implementations".
Also leaves the include/uapi/linux/fs.h constants in place to prevent
future accidental re-use.
Bug: 116008047
Change-Id: I2d64d8d3e384400b7bdfc06a353c3844d4ebb377
Signed-off-by: Alistair Strachan <astrachan@google.com>
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* refs/heads/tmp-e6fa8a2:
Revert "f2fs: fix to propagate return value of scan_nat_page()"
Revert "f2fs: fix to propagate error from __get_meta_page()"
Revert "f2fs: use timespec64 for inode timestamps"
f2fs: readahead encrypted block during GC
f2fs: avoid fi->i_gc_rwsem[WRITE] lock in f2fs_gc
f2fs: fix performance issue observed with multi-thread sequential read
f2fs: fix to skip verifying block address for non-regular inode
f2fs: rework fault injection handling to avoid a warning
f2fs: support fault_type mount option
f2fs: fix to return success when trimming meta area
f2fs: fix use-after-free of dicard command entry
f2fs: support discard submission error injection
f2fs: split discard command in prior to block layer
f2fs: wake up gc thread immediately when gc_urgent is set
f2fs: fix incorrect range->len in f2fs_trim_fs()
f2fs: refresh recent accessed nat entry in lru list
f2fs: fix avoid race between truncate and background GC
f2fs: avoid race between zero_range and background GC
f2fs: fix to do sanity check with block address in main area v2
f2fs: fix to do sanity check with inline flags
f2fs: fix to reset i_gc_failures correctly
f2fs: fix invalid memory access
f2fs: fix to avoid broken of dnode block list
f2fs: use true and false for boolean values
f2fs: fix to do sanity check with cp_pack_start_sum
f2fs: avoid f2fs_bug_on() in cp_error case
f2fs: fix to clear PG_checked flag in set_page_dirty()
f2fs: fix to active page in lru list for read path
f2fs: don't keep meta pages used for block migration
f2fs: fix to restrict mount condition when without CONFIG_QUOTA
f2fs: quota: do not mount as RDWR without QUOTA if quota feature enabled
f2fs: quota: fix incorrect comments
f2fs: quota: decrease the lock granularity of statfs_project
f2fs: add proc entry to show victim_secmap bitmap
f2fs: let checkpoint flush dnode page of regular
f2fs: issue discard align to section in LFS mode
f2fs: don't allow any writes on aborted atomic writes
f2fs: restrict setting up inode.i_advise
f2fs: fix wrong kernel message when recover fsync data on ro fs
f2fs: clean up ioctl interface naming
f2fs: clean up with f2fs_is_{atomic,volatile}_file()
f2fs: clean up with f2fs_encrypted_inode()
f2fs: clean up with get_current_nat_page
f2fs: kill EXT_TREE_VEC_SIZE
f2fs: avoid duplicated permission check for "trusted." xattrs
f2fs: fix to propagate error from __get_meta_page()
f2fs: fix to do sanity check with i_extra_isize
f2fs: blk_finish_plug of submit_bio in lfs mode
f2fs: do not set free of current section
f2fs: Keep alloc_valid_block_count in sync
f2fs: issue small discard by LBA order
f2fs: stop issuing discard immediately if there is queued IO
f2fs: clean up with IS_INODE()
f2fs: detect bug_on in f2fs_wait_discard_bios
f2fs: fix defined but not used build warnings
f2fs: enable real-time discard by default
f2fs: fix to detect looped node chain correctly
f2fs: fix to do sanity check with block address in main area
f2fs: fix to skip GC if type in SSA and SIT is inconsistent
f2fs: try grabbing node page lock aggressively in sync scenario
f2fs: show the fsync_mode=nobarrier mount option
f2fs: check the right return value of memory alloc function
f2fs: Replace strncpy with memcpy
f2fs: avoid the global name 'fault_name'
f2fs: fix to do sanity check with reserved blkaddr of inline inode
f2fs: fix to do sanity check with node footer and iblocks
f2fs: Allocate and stat mem used by free nid bitmap more accurately
f2fs: fix to do sanity check with user_block_count
f2fs: fix to do sanity check with extra_attr feature
f2fs: fix to correct return value of f2fs_trim_fs
f2fs: fix to do sanity check with {sit,nat}_ver_bitmap_bytesize
f2fs: fix to do sanity check with secs_per_zone
f2fs: disable f2fs_check_rb_tree_consistence
f2fs: introduce and spread verify_blkaddr
f2fs: use timespec64 for inode timestamps
f2fs: fix to wait on page writeback before updating page
f2fs: assign REQ_RAHEAD to bio for ->readpages
f2fs: fix a hungtask problem caused by congestion_wait
f2fs: Fix uninitialized return in f2fs_ioc_shutdown()
f2fs: don't issue discard commands in online discard is on
f2fs: fix to propagate return value of scan_nat_page()
f2fs: support in-memory inode checksum when checking consistency
f2fs: fix error path of fill_super
f2fs: relocate readdir_ra configure initialization
f2fs: move s_res{u,g}id initialization to default_options()
f2fs: don't acquire orphan ino during recovery
f2fs: avoid potential deadlock in f2fs_sbi_store
f2fs: indicate shutdown f2fs to allow unmount successfully
f2fs: keep meta pages in cp_error state
f2fs: do checkpoint in kill_sb
f2fs: allow wrong configured dio to buffered write
f2fs: flush journal nat entries for nat_bits during unmount
Conflicts:
fs/f2fs/checkpoint.c
fs/f2fs/data.c
fs/f2fs/f2fs.h
fs/f2fs/inode.c
fs/f2fs/node.c
fs/f2fs/segment.c
Change-Id: I31b0b06129b4da71477592e4699b4703504cea17
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
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android-4.14
* origin/upstream-f2fs-stable-linux-4.14.y:
f2fs: readahead encrypted block during GC
f2fs: avoid fi->i_gc_rwsem[WRITE] lock in f2fs_gc
f2fs: fix performance issue observed with multi-thread sequential read
f2fs: fix to skip verifying block address for non-regular inode
f2fs: rework fault injection handling to avoid a warning
f2fs: support fault_type mount option
f2fs: fix to return success when trimming meta area
f2fs: fix use-after-free of dicard command entry
f2fs: support discard submission error injection
f2fs: split discard command in prior to block layer
f2fs: wake up gc thread immediately when gc_urgent is set
f2fs: fix incorrect range->len in f2fs_trim_fs()
f2fs: refresh recent accessed nat entry in lru list
f2fs: fix avoid race between truncate and background GC
f2fs: avoid race between zero_range and background GC
f2fs: fix to do sanity check with block address in main area v2
f2fs: fix to do sanity check with inline flags
f2fs: fix to reset i_gc_failures correctly
f2fs: fix invalid memory access
f2fs: fix to avoid broken of dnode block list
f2fs: use true and false for boolean values
f2fs: fix to do sanity check with cp_pack_start_sum
f2fs: avoid f2fs_bug_on() in cp_error case
f2fs: fix to clear PG_checked flag in set_page_dirty()
f2fs: fix to active page in lru list for read path
f2fs: don't keep meta pages used for block migration
f2fs: fix to restrict mount condition when without CONFIG_QUOTA
f2fs: quota: do not mount as RDWR without QUOTA if quota feature enabled
f2fs: quota: fix incorrect comments
f2fs: quota: decrease the lock granularity of statfs_project
f2fs: add proc entry to show victim_secmap bitmap
f2fs: let checkpoint flush dnode page of regular
f2fs: issue discard align to section in LFS mode
f2fs: don't allow any writes on aborted atomic writes
f2fs: restrict setting up inode.i_advise
f2fs: fix wrong kernel message when recover fsync data on ro fs
f2fs: clean up ioctl interface naming
f2fs: clean up with f2fs_is_{atomic,volatile}_file()
f2fs: clean up with f2fs_encrypted_inode()
f2fs: clean up with get_current_nat_page
f2fs: kill EXT_TREE_VEC_SIZE
f2fs: avoid duplicated permission check for "trusted." xattrs
f2fs: fix to propagate error from __get_meta_page()
f2fs: fix to do sanity check with i_extra_isize
f2fs: blk_finish_plug of submit_bio in lfs mode
f2fs: do not set free of current section
f2fs: Keep alloc_valid_block_count in sync
f2fs: issue small discard by LBA order
f2fs: stop issuing discard immediately if there is queued IO
f2fs: clean up with IS_INODE()
f2fs: detect bug_on in f2fs_wait_discard_bios
f2fs: fix defined but not used build warnings
f2fs: enable real-time discard by default
f2fs: fix to detect looped node chain correctly
f2fs: fix to do sanity check with block address in main area
f2fs: fix to skip GC if type in SSA and SIT is inconsistent
f2fs: try grabbing node page lock aggressively in sync scenario
f2fs: show the fsync_mode=nobarrier mount option
f2fs: check the right return value of memory alloc function
f2fs: Replace strncpy with memcpy
f2fs: avoid the global name 'fault_name'
f2fs: fix to do sanity check with reserved blkaddr of inline inode
f2fs: fix to do sanity check with node footer and iblocks
f2fs: Allocate and stat mem used by free nid bitmap more accurately
f2fs: fix to do sanity check with user_block_count
f2fs: fix to do sanity check with extra_attr feature
f2fs: fix to correct return value of f2fs_trim_fs
f2fs: fix to do sanity check with {sit,nat}_ver_bitmap_bytesize
f2fs: fix to do sanity check with secs_per_zone
f2fs: disable f2fs_check_rb_tree_consistence
f2fs: introduce and spread verify_blkaddr
f2fs: use timespec64 for inode timestamps
f2fs: fix to wait on page writeback before updating page
f2fs: assign REQ_RAHEAD to bio for ->readpages
f2fs: fix a hungtask problem caused by congestion_wait
f2fs: Fix uninitialized return in f2fs_ioc_shutdown()
f2fs: don't issue discard commands in online discard is on
f2fs: fix to propagate return value of scan_nat_page()
f2fs: support in-memory inode checksum when checking consistency
f2fs: fix error path of fill_super
f2fs: relocate readdir_ra configure initialization
f2fs: move s_res{u,g}id initialization to default_options()
f2fs: don't acquire orphan ino during recovery
f2fs: avoid potential deadlock in f2fs_sbi_store
f2fs: indicate shutdown f2fs to allow unmount successfully
f2fs: keep meta pages in cp_error state
f2fs: do checkpoint in kill_sb
f2fs: allow wrong configured dio to buffered write
f2fs: flush journal nat entries for nat_bits during unmount
Change-Id: I5bcd60165b2faa2c7310e03a841158092611472d
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
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Previously, once fault injection is on, by default, all kind of faults
will be injected to f2fs, if we want to trigger single or specified
combined type during the test, we need to configure sysfs entry, it will
be a little inconvenient to integrate sysfs configuring into testsuit,
such as xfstest.
So this patch introduces a new mount option 'fault_type' to assist old
option 'fault_injection', with these two mount options, we can specify
any fault rate/type at mount-time.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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* refs/heads/tmp-73421a4:
Revert "f2fs: let discard thread wait a little longer if dev is busy"
Revert "f2fs: clean up with is_valid_blkaddr()"
Revert "f2fs: fix race in between GC and atomic open"
treewide: Use array_size in f2fs_kvzalloc()
treewide: Use array_size() in f2fs_kzalloc()
treewide: Use array_size() in f2fs_kmalloc()
overflow.h: Add allocation size calculation helpers
f2fs: fix to clear FI_VOLATILE_FILE correctly
f2fs: let sync node IO interrupt async one
f2fs: don't change wbc->sync_mode
f2fs: fix to update mtime correctly
fs: f2fs: insert space around that ':' and ', '
fs: f2fs: add missing blank lines after declarations
fs: f2fs: changed variable type of offset "unsigned" to "loff_t"
f2fs: clean up symbol namespace
f2fs: make set_de_type() static
f2fs: make __f2fs_write_data_pages() static
f2fs: fix to avoid accessing cross the boundary
f2fs: fix to let caller retry allocating block address
disable loading f2fs module on PAGE_SIZE > 4KB
f2fs: fix error path of move_data_page
f2fs: don't drop dentry pages after fs shutdown
f2fs: fix to avoid race during access gc_thread pointer
f2fs: clean up with clear_radix_tree_dirty_tag
f2fs: fix to don't trigger writeback during recovery
f2fs: clear discard_wake earlier
f2fs: let discard thread wait a little longer if dev is busy
f2fs: avoid stucking GC due to atomic write
f2fs: introduce sbi->gc_mode to determine the policy
f2fs: keep migration IO order in LFS mode
f2fs: fix to wait page writeback during revoking atomic write
f2fs: Fix deadlock in shutdown ioctl
f2fs: detect synchronous writeback more earlier
mm: remove nr_pages argument from pagevec_lookup_{,range}_tag()
ceph: use pagevec_lookup_range_nr_tag()
mm: add variant of pagevec_lookup_range_tag() taking number of pages
mm: use pagevec_lookup_range_tag() in write_cache_pages()
mm: use pagevec_lookup_range_tag() in __filemap_fdatawait_range()
nilfs2: use pagevec_lookup_range_tag()
gfs2: use pagevec_lookup_range_tag()
f2fs: use find_get_pages_tag() for looking up single page
f2fs: simplify page iteration loops
f2fs: use pagevec_lookup_range_tag()
ext4: use pagevec_lookup_range_tag()
ceph: use pagevec_lookup_range_tag()
btrfs: use pagevec_lookup_range_tag()
mm: implement find_get_pages_range_tag()
f2fs: clean up with is_valid_blkaddr()
f2fs: fix to initialize min_mtime with ULLONG_MAX
f2fs: fix to let checkpoint guarantee atomic page persistence
f2fs: fix to initialize i_current_depth according to inode type
Revert "f2fs: add ovp valid_blocks check for bg gc victim to fg_gc"
f2fs: don't drop any page on f2fs_cp_error() case
f2fs: fix spelling mistake: "extenstion" -> "extension"
f2fs: enhance sanity_check_raw_super() to avoid potential overflows
f2fs: treat volatile file's data as hot one
f2fs: introduce release_discard_addr() for cleanup
f2fs: fix potential overflow
f2fs: rename dio_rwsem to i_gc_rwsem
f2fs: move mnt_want_write_file after range check
f2fs: fix missing clear FI_NO_PREALLOC in some error case
f2fs: enforce fsync_mode=strict for renamed directory
f2fs: sanity check for total valid node blocks
f2fs: sanity check on sit entry
f2fs: avoid bug_on on corrupted inode
f2fs: give message and set need_fsck given broken node id
f2fs: clean up commit_inmem_pages()
f2fs: do not check F2FS_INLINE_DOTS in recover
f2fs: remove duplicated dquot_initialize and fix error handling
f2fs: fix to detect failure of dquot_initialize
f2fs: stop issue discard if something wrong with f2fs
f2fs: fix return value in f2fs_ioc_commit_atomic_write
f2fs: allocate hot_data for atomic write more strictly
f2fs: check if inmem_pages list is empty correctly
f2fs: fix race in between GC and atomic open
f2fs: change le32 to le16 of f2fs_inode->i_extra_size
f2fs: check cur_valid_map_mir & raw_sit block count when flush sit entries
f2fs: correct return value of f2fs_trim_fs
f2fs: fix to show missing bits in FS_IOC_GETFLAGS
f2fs: remove unneeded F2FS_PROJINHERIT_FL
f2fs: don't use GFP_ZERO for page caches
f2fs: issue all big range discards in umount process
f2fs: remove redundant block plug
f2fs: remove unmatched zero_user_segment when convert inline dentry
f2fs: introduce private inode status mapping
fscrypt: log the crypto algorithm implementations
fscrypt: add Speck128/256 support
fscrypt: only derive the needed portion of the key
fscrypt: separate key lookup from key derivation
fscrypt: use a common logging function
fscrypt: remove internal key size constants
fscrypt: remove unnecessary check for non-logon key type
fscrypt: make fscrypt_operations.max_namelen an integer
fscrypt: drop empty name check from fname_decrypt()
fscrypt: drop max_namelen check from fname_decrypt()
fscrypt: don't special-case EOPNOTSUPP from fscrypt_get_encryption_info()
fscrypt: don't clear flags on crypto transform
fscrypt: remove stale comment from fscrypt_d_revalidate()
fscrypt: remove error messages for skcipher_request_alloc() failure
fscrypt: remove unnecessary NULL check when allocating skcipher
fscrypt: clean up after fscrypt_prepare_lookup() conversions
ubifs: switch to fscrypt_prepare_lookup()
ext4: switch to fscrypt_prepare_lookup()
fscrypt: use unbound workqueue for decryption
Conflicts:
fs/crypto/keyinfo.c
fs/ext4/super.c
fs/f2fs/checkpoint.c
fs/f2fs/data.c
fs/f2fs/f2fs.h
fs/f2fs/file.c
fs/f2fs/gc.c
fs/f2fs/inline.c
fs/f2fs/inode.c
fs/f2fs/node.c
fs/f2fs/recovery.c
fs/f2fs/segment.c
fs/f2fs/super.c
include/linux/fscrypt_supp.h
include/linux/overflow.h
Extra changes were required in below files due to hard
conflicts against HW based FBE:
fs/crypto/fscrypt_ice.c
fs/crypto/fscrypt_ice.h
fs/crypto/fscrypt_private.h
fs/crypto/keyinfo.c
Change-Id: I01d788e7cd36539f6228742c99820a94a2cc5e46
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
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android-4.14
Cherry-picked from origin/upstream-f2fs-stable-linux-4.14.y:
1bb3cca12624 treewide: Use array_size in f2fs_kvzalloc()
cf663a62b177 treewide: Use array_size() in f2fs_kzalloc()
eac699e689d5 treewide: Use array_size() in f2fs_kmalloc()
fc8ab902e92c overflow.h: Add allocation size calculation helpers
ccd39d96d179 f2fs: fix to clear FI_VOLATILE_FILE correctly
57344fb5931e f2fs: let sync node IO interrupt async one
6cf9490912e1 f2fs: don't change wbc->sync_mode
c4a1d7bb2799 f2fs: fix to update mtime correctly
b693f29b245e fs: f2fs: insert space around that ':' and ', '
9449a17f3306 fs: f2fs: add missing blank lines after declarations
b6f703cbed02 fs: f2fs: changed variable type of offset "unsigned" to "loff_t"
9919f98051f9 f2fs: clean up symbol namespace
1a37234c5ed7 f2fs: make set_de_type() static
57d24d20b77b f2fs: make __f2fs_write_data_pages() static
e269eadf64b6 f2fs: fix to avoid accessing cross the boundary
3e1842e7ca6c f2fs: fix to let caller retry allocating block address
b97a9b930802 disable loading f2fs module on PAGE_SIZE > 4KB
46df5fe2bad4 f2fs: fix error path of move_data_page
1b8f49aeb0e4 f2fs: don't drop dentry pages after fs shutdown
5dbd21b17b63 f2fs: fix to avoid race during access gc_thread pointer
b6f0cb185000 f2fs: clean up with clear_radix_tree_dirty_tag
b9272dd4161a f2fs: fix to don't trigger writeback during recovery
d46792d624ef f2fs: clear discard_wake earlier
161d1c91b80a f2fs: let discard thread wait a little longer if dev is busy
4329d61ca5df f2fs: avoid stucking GC due to atomic write
223d239c6d08 f2fs: introduce sbi->gc_mode to determine the policy
c5f57523fcd1 f2fs: keep migration IO order in LFS mode
4a4f98b7e161 f2fs: fix to wait page writeback during revoking atomic write
6c5d01ab37e7 f2fs: Fix deadlock in shutdown ioctl
1f315091b862 f2fs: detect synchronous writeback more earlier
c806c4187a0b mm: remove nr_pages argument from pagevec_lookup_{,range}_tag()
8aa71a329503 ceph: use pagevec_lookup_range_nr_tag()
b44cc9e860cf mm: add variant of pagevec_lookup_range_tag() taking number of pages
af44f89b900b mm: use pagevec_lookup_range_tag() in write_cache_pages()
a01f2023a837 mm: use pagevec_lookup_range_tag() in __filemap_fdatawait_range()
ed5739e31ed8 nilfs2: use pagevec_lookup_range_tag()
95954b0dbbbb gfs2: use pagevec_lookup_range_tag()
8d62b4b25b8a f2fs: use find_get_pages_tag() for looking up single page
53f38f268a9a f2fs: simplify page iteration loops
b0310cc6e6dd f2fs: use pagevec_lookup_range_tag()
e62fbfd6d4dd ext4: use pagevec_lookup_range_tag()
106221492410 ceph: use pagevec_lookup_range_tag()
4b65630c0da7 btrfs: use pagevec_lookup_range_tag()
8e8455a68cc2 mm: implement find_get_pages_range_tag()
a9a6eb48b7cf f2fs: clean up with is_valid_blkaddr()
992fa7bd773f f2fs: fix to initialize min_mtime with ULLONG_MAX
9af9ec1b6cf5 f2fs: fix to let checkpoint guarantee atomic page persistence
d5f8aab3aee8 f2fs: fix to initialize i_current_depth according to inode type
12dab4e61baf Revert "f2fs: add ovp valid_blocks check for bg gc victim to fg_gc"
34f089c52881 f2fs: don't drop any page on f2fs_cp_error() case
76dffc9986e3 f2fs: fix spelling mistake: "extenstion" -> "extension"
a5a897aabdbd f2fs: enhance sanity_check_raw_super() to avoid potential overflows
f0b5d76682cd f2fs: treat volatile file's data as hot one
50644840d860 f2fs: introduce release_discard_addr() for cleanup
39b292a40288 f2fs: fix potential overflow
76ddd4ff06b8 f2fs: rename dio_rwsem to i_gc_rwsem
c75638d5f569 f2fs: move mnt_want_write_file after range check
cc7e70c07023 f2fs: fix missing clear FI_NO_PREALLOC in some error case
c9b3f46fd20e f2fs: enforce fsync_mode=strict for renamed directory
cbbd81cf17fe f2fs: sanity check for total valid node blocks
bbd9c950fdec f2fs: sanity check on sit entry
d921ced41c40 f2fs: avoid bug_on on corrupted inode
32c00c538e51 f2fs: give message and set need_fsck given broken node id
568765d739df f2fs: clean up commit_inmem_pages()
ac2074b52e87 f2fs: do not check F2FS_INLINE_DOTS in recover
1f1473916089 f2fs: remove duplicated dquot_initialize and fix error handling
913efaeca9c6 f2fs: fix to detect failure of dquot_initialize
f60d3b8fcc92 f2fs: stop issue discard if something wrong with f2fs
4470ece5c075 f2fs: fix return value in f2fs_ioc_commit_atomic_write
318a9d5ae78c f2fs: allocate hot_data for atomic write more strictly
bd5f1c23a7d0 f2fs: check if inmem_pages list is empty correctly
2e405acc866a f2fs: fix race in between GC and atomic open
408e9720d894 f2fs: change le32 to le16 of f2fs_inode->i_extra_size
2f3cee5b22b4 f2fs: check cur_valid_map_mir & raw_sit block count when flush sit entries
8cd907eea55d f2fs: correct return value of f2fs_trim_fs
0be91d342a81 f2fs: fix to show missing bits in FS_IOC_GETFLAGS
dbfe915c2cf6 f2fs: remove unneeded F2FS_PROJINHERIT_FL
ee8586bbd61d f2fs: don't use GFP_ZERO for page caches
50332ac97dd0 f2fs: issue all big range discards in umount process
1c3ec702f06f f2fs: remove redundant block plug
694cd12fe9e4 f2fs: remove unmatched zero_user_segment when convert inline dentry
39c9aacbcdbf f2fs: introduce private inode status mapping
755a8a8a3bfc fscrypt: log the crypto algorithm implementations
e81950ade16d fscrypt: add Speck128/256 support
9637768c618d fscrypt: only derive the needed portion of the key
deba2007d2a1 fscrypt: separate key lookup from key derivation
04566cd68241 fscrypt: use a common logging function
2a95469530f3 fscrypt: remove internal key size constants
fc161f445010 fscrypt: remove unnecessary check for non-logon key type
ab8345a11caa fscrypt: make fscrypt_operations.max_namelen an integer
65702a6ef79b fscrypt: drop empty name check from fname_decrypt()
219e65410cae fscrypt: drop max_namelen check from fname_decrypt()
ef1def58e2fd fscrypt: don't special-case EOPNOTSUPP from fscrypt_get_encryption_info()
49ddcfcdd73a fscrypt: don't clear flags on crypto transform
ff8225b62ca0 fscrypt: remove stale comment from fscrypt_d_revalidate()
712401bc77ff fscrypt: remove error messages for skcipher_request_alloc() failure
6e4e39cc922c fscrypt: remove unnecessary NULL check when allocating skcipher
42b3feb2bd76 fscrypt: clean up after fscrypt_prepare_lookup() conversions
e43a072723f7 ubifs: switch to fscrypt_prepare_lookup()
f76b2cb6733b ext4: switch to fscrypt_prepare_lookup()
fc30ddc3b039 fscrypt: use unbound workqueue for decryption
Change-Id: I3912aa38b2bf515ef8af8ed4945e54bc63945c86
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
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fscrypt currently only supports AES encryption. However, many low-end
mobile devices have older CPUs that don't have AES instructions, e.g.
the ARMv8 Cryptography Extensions. Currently, user data on such devices
is not encrypted at rest because AES is too slow, even when the NEON
bit-sliced implementation of AES is used. Unfortunately, it is
infeasible to encrypt these devices at all when AES is the only option.
Therefore, this patch updates fscrypt to support the Speck block cipher,
which was recently added to the crypto API. The C implementation of
Speck is not especially fast, but Speck can be implemented very
efficiently with general-purpose vector instructions, e.g. ARM NEON.
For example, on an ARMv7 processor, we measured the NEON-accelerated
Speck128/256-XTS at 69 MB/s for both encryption and decryption, while
AES-256-XTS with the NEON bit-sliced implementation was only 22 MB/s
encryption and 19 MB/s decryption.
There are multiple variants of Speck. This patch only adds support for
Speck128/256, which is the variant with a 128-bit block size and 256-bit
key size -- the same as AES-256. This is believed to be the most secure
variant of Speck, and it's only about 6% slower than Speck128/128.
Speck64/128 would be at least 20% faster because it has 20% rounds, and
it can be even faster on CPUs that can't efficiently do the 64-bit
operations needed for Speck128. However, Speck64's 64-bit block size is
not preferred security-wise. ARM NEON also supports the needed 64-bit
operations even on 32-bit CPUs, resulting in Speck128 being fast enough
for our targeted use cases so far.
The chosen modes of operation are XTS for contents and CTS-CBC for
filenames. These are the same modes of operation that fscrypt defaults
to for AES. Note that as with the other fscrypt modes, Speck will not
be used unless userspace chooses to use it. Nor are any of the existing
modes (which are all AES-based) being removed, of course.
We intentionally don't make CONFIG_FS_ENCRYPTION select
CONFIG_CRYPTO_SPECK, so people will have to enable Speck support
themselves if they need it. This is because we shouldn't bloat the
FS_ENCRYPTION dependencies with every new cipher, especially ones that
aren't recommended for most users. Moreover, CRYPTO_SPECK is just the
generic implementation, which won't be fast enough for many users; in
practice, they'll need to enable CRYPTO_SPECK_NEON to get acceptable
performance.
More details about our choice of Speck can be found in our patches that
added Speck to the crypto API, and the follow-on discussion threads.
We're planning a publication that explains the choice in more detail.
But briefly, we can't use ChaCha20 as we previously proposed, since it
would be insecure to use a stream cipher in this context, with potential
IV reuse during writes on f2fs and/or on wear-leveling flash storage.
We also evaluated many other lightweight and/or ARX-based block ciphers
such as Chaskey-LTS, RC5, LEA, CHAM, Threefish, RC6, NOEKEON, SPARX, and
XTEA. However, all had disadvantages vs. Speck, such as insufficient
performance with NEON, much less published cryptanalysis, or an
insufficient security level. Various design choices in Speck make it
perform better with NEON than competing ciphers while still having a
security margin similar to AES, and in the case of Speck128 also the
same available security levels. Unfortunately, Speck does have some
political baggage attached -- it's an NSA designed cipher, and was
rejected from an ISO standard (though for context, as far as I know none
of the above-mentioned alternatives are ISO standards either).
Nevertheless, we believe it is a good solution to the problem from a
technical perspective.
Certain algorithms constructed from ChaCha or the ChaCha permutation,
such as MEM (Masked Even-Mansour) or HPolyC, may also meet our
performance requirements. However, these are new constructions that
need more time to receive the cryptographic review and acceptance needed
to be confident in their security. HPolyC hasn't been published yet,
and we are concerned that MEM makes stronger assumptions about the
underlying permutation than the ChaCha stream cipher does. In contrast,
the XTS mode of operation is relatively well accepted, and Speck has
over 70 cryptanalysis papers. Of course, these ChaCha-based algorithms
can still be added later if they become ready.
The best known attack on Speck128/256 is a differential cryptanalysis
attack on 25 of 34 rounds with 2^253 time complexity and 2^125 chosen
plaintexts, i.e. only marginally faster than brute force. There is no
known attack on the full 34 rounds.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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For non-atomic files, this patch adds an option to give nobarrier which
doesn't issue flush commands to the device.
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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This patch introduces a new mount option `test_dummy_encryption'
to allow fscrypt to create a fake fscrypt context. This is used
by xfstests.
Signed-off-by: Sheng Yong <shengyong1@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Commit "0a007b97aad6"(f2fs: recover directory operations by fsync)
fixed xfstest generic/342 case, but it also increased the written
data and caused the performance degradation. In most cases, there's
no need to do so heavy fsync actually.
So we introduce new mount option "fsync_mode={posix,strict}" to
control the policy of fsync. "fsync_mode=posix" is set by default,
and means that f2fs uses a light fsync, which follows POSIX semantics.
And "fsync_mode=strict" means that it's a heavy fsync, which behaves
in line with xfs, ext4 and btrfs, where generic/342 will pass, but
the performance will regress.
Signed-off-by: Junling Zheng <zhengjunling@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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This patch adds an mount option, "alloc_mode=%s" having two options, "default"
and "reuse".
In "alloc_mode=reuse" case, f2fs starts to allocate segments from 0'th segment
all the time to reassign segments. It'd be useful for small-sized eMMC parts.
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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* refs/heads/tmp-053a46d:
Linux 4.14.96
ipmi:ssif: Fix handling of multi-part return messages
PCI: dwc: Move interrupt acking into the proper callback
drm/i915/gvt: Fix mmap range check
cifs: allow disabling insecure dialects in the config
ipmi:pci: Blacklist a Realtek "IPMI" device
nfs: fix a deadlock in nfs client initialization
mm, proc: be more verbose about unstable VMA flags in /proc/<pid>/smaps
mm/swap: use nr_node_ids for avail_lists in swap_info_struct
mm/page-writeback.c: don't break integrity writeback on ->writepage() error
ocfs2: fix panic due to unrecovered local alloc
scsi: megaraid: fix out-of-bound array accesses
scsi: smartpqi: call pqi_free_interrupts() in pqi_shutdown()
scsi: smartpqi: correct lun reset issues
IB/usnic: Fix potential deadlock
sysfs: Disable lockdep for driver bind/unbind files
ALSA: bebob: fix model-id of unit for Apogee Ensemble
clocksource/drivers/integrator-ap: Add missing of_node_put()
quota: Lock s_umount in exclusive mode for Q_XQUOTA{ON,OFF} quotactls.
dm snapshot: Fix excessive memory usage and workqueue stalls
tools lib subcmd: Don't add the kernel sources to the include path
dm kcopyd: Fix bug causing workqueue stalls
dm crypt: use u64 instead of sector_t to store iv_offset
netfilter: ipt_CLUSTERIP: check MAC address when duplicate config is set
perf parse-events: Fix unchecked usage of strncpy()
perf svghelper: Fix unchecked usage of strncpy()
perf intel-pt: Fix error with config term "pt=0"
tty/serial: do not free trasnmit buffer page under port lock
btrfs: improve error handling of btrfs_add_link
mmc: atmel-mci: do not assume idle after atmci_request_end
kconfig: fix memory leak when EOF is encountered in quotation
kconfig: fix file name and line number of warn_ignored_character()
arm64: Fix minor issues with the dcache_by_line_op macro
clk: imx6q: reset exclusive gates on init
selftests: do not macro-expand failed assertion expressions
scsi: target: use consistent left-aligned ASCII INQUIRY data
net: call sk_dst_reset when set SO_DONTROUTE
media: venus: core: Set dma maximum segment size
media: firewire: Fix app_info parameter type in avc_ca{,_app}_info
powerpc/pseries/cpuidle: Fix preempt warning
powerpc/xmon: Fix invocation inside lock region
pstore/ram: Do not treat empty buffers as valid
clk: imx: make mux parent strings const
jffs2: Fix use of uninitialized delayed_work, lockdep breakage
rxe: IB_WR_REG_MR does not capture MR's iova field
selinux: always allow mounting submounts
usb: gadget: udc: renesas_usb3: add a safety connection way for forced_b_device
arm64: perf: set suppress_bind_attrs flag to true
MIPS: SiByte: Enable swiotlb for SWARM, LittleSur and BigSur
x86/mce: Fix -Wmissing-prototypes warnings
ALSA: oxfw: add support for APOGEE duet FireWire
serial: set suppress_bind_attrs flag only if builtin
writeback: don't decrement wb->refcnt if !wb->bdi
e1000e: allow non-monotonic SYSTIM readings
platform/x86: asus-wmi: Tell the EC the OS will handle the display off hotkey
gpio: pl061: Move irq_chip definition inside struct pl061
net: dsa: mv88x6xxx: mv88e6390 errata
ipv6: Take rcu_read_lock in __inet6_bind for mapped addresses
r8169: Add support for new Realtek Ethernet
qmi_wwan: add MTU default to qmap network interface
net, skbuff: do not prefer skb allocation fails early
mlxsw: spectrum_switchdev: Set PVID correctly during VLAN deletion
mlxsw: spectrum: Disable lag port TX before removing it
ipv6: Consider sk_bound_dev_if when binding a socket to a v4 mapped address
Conflicts:
include/linux/swap.h
Change-Id: I7d6bbb965eb4517b3972f1d3fb320f48bc43550c
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
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Changes in 4.14.96
ipv6: Consider sk_bound_dev_if when binding a socket to a v4 mapped address
mlxsw: spectrum: Disable lag port TX before removing it
mlxsw: spectrum_switchdev: Set PVID correctly during VLAN deletion
net, skbuff: do not prefer skb allocation fails early
qmi_wwan: add MTU default to qmap network interface
r8169: Add support for new Realtek Ethernet
ipv6: Take rcu_read_lock in __inet6_bind for mapped addresses
net: dsa: mv88x6xxx: mv88e6390 errata
gpio: pl061: Move irq_chip definition inside struct pl061
platform/x86: asus-wmi: Tell the EC the OS will handle the display off hotkey
e1000e: allow non-monotonic SYSTIM readings
writeback: don't decrement wb->refcnt if !wb->bdi
serial: set suppress_bind_attrs flag only if builtin
ALSA: oxfw: add support for APOGEE duet FireWire
x86/mce: Fix -Wmissing-prototypes warnings
MIPS: SiByte: Enable swiotlb for SWARM, LittleSur and BigSur
arm64: perf: set suppress_bind_attrs flag to true
usb: gadget: udc: renesas_usb3: add a safety connection way for forced_b_device
selinux: always allow mounting submounts
rxe: IB_WR_REG_MR does not capture MR's iova field
jffs2: Fix use of uninitialized delayed_work, lockdep breakage
clk: imx: make mux parent strings const
pstore/ram: Do not treat empty buffers as valid
powerpc/xmon: Fix invocation inside lock region
powerpc/pseries/cpuidle: Fix preempt warning
media: firewire: Fix app_info parameter type in avc_ca{,_app}_info
media: venus: core: Set dma maximum segment size
net: call sk_dst_reset when set SO_DONTROUTE
scsi: target: use consistent left-aligned ASCII INQUIRY data
selftests: do not macro-expand failed assertion expressions
clk: imx6q: reset exclusive gates on init
arm64: Fix minor issues with the dcache_by_line_op macro
kconfig: fix file name and line number of warn_ignored_character()
kconfig: fix memory leak when EOF is encountered in quotation
mmc: atmel-mci: do not assume idle after atmci_request_end
btrfs: improve error handling of btrfs_add_link
tty/serial: do not free trasnmit buffer page under port lock
perf intel-pt: Fix error with config term "pt=0"
perf svghelper: Fix unchecked usage of strncpy()
perf parse-events: Fix unchecked usage of strncpy()
netfilter: ipt_CLUSTERIP: check MAC address when duplicate config is set
dm crypt: use u64 instead of sector_t to store iv_offset
dm kcopyd: Fix bug causing workqueue stalls
tools lib subcmd: Don't add the kernel sources to the include path
dm snapshot: Fix excessive memory usage and workqueue stalls
quota: Lock s_umount in exclusive mode for Q_XQUOTA{ON,OFF} quotactls.
clocksource/drivers/integrator-ap: Add missing of_node_put()
ALSA: bebob: fix model-id of unit for Apogee Ensemble
sysfs: Disable lockdep for driver bind/unbind files
IB/usnic: Fix potential deadlock
scsi: smartpqi: correct lun reset issues
scsi: smartpqi: call pqi_free_interrupts() in pqi_shutdown()
scsi: megaraid: fix out-of-bound array accesses
ocfs2: fix panic due to unrecovered local alloc
mm/page-writeback.c: don't break integrity writeback on ->writepage() error
mm/swap: use nr_node_ids for avail_lists in swap_info_struct
mm, proc: be more verbose about unstable VMA flags in /proc/<pid>/smaps
nfs: fix a deadlock in nfs client initialization
ipmi:pci: Blacklist a Realtek "IPMI" device
cifs: allow disabling insecure dialects in the config
drm/i915/gvt: Fix mmap range check
PCI: dwc: Move interrupt acking into the proper callback
ipmi:ssif: Fix handling of multi-part return messages
Linux 4.14.96
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
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[ Upstream commit 7550c6079846a24f30d15ac75a941c8515dbedfb ]
Patch series "THP eligibility reporting via proc".
This series of three patches aims at making THP eligibility reporting much
more robust and long term sustainable. The trigger for the change is a
regression report [2] and the long follow up discussion. In short the
specific application didn't have good API to query whether a particular
mapping can be backed by THP so it has used VMA flags to workaround that.
These flags represent a deep internal state of VMAs and as such they
should be used by userspace with a great deal of caution.
A similar has happened for [3] when users complained that VM_MIXEDMAP is
no longer set on DAX mappings. Again a lack of a proper API led to an
abuse.
The first patch in the series tries to emphasise that that the semantic of
flags might change and any application consuming those should be really
careful.
The remaining two patches provide a more suitable interface to address [2]
and provide a consistent API to query the THP status both for each VMA and
process wide as well. [1]
http://lkml.kernel.org/r/20181120103515.25280-1-mhocko@kernel.org [2]
http://lkml.kernel.org/r/http://lkml.kernel.org/r/alpine.DEB.2.21.1809241054050.224429@chino.kir.corp.google.com
[3] http://lkml.kernel.org/r/20181002100531.GC4135@quack2.suse.cz
This patch (of 3):
Even though vma flags exported via /proc/<pid>/smaps are explicitly
documented to be not guaranteed for future compatibility the warning
doesn't go far enough because it doesn't mention semantic changes to those
flags. And they are important as well because these flags are a deep
implementation internal to the MM code and the semantic might change at
any time.
Let's consider two recent examples:
http://lkml.kernel.org/r/20181002100531.GC4135@quack2.suse.cz
: commit e1fb4a086495 "dax: remove VM_MIXEDMAP for fsdax and device dax" has
: removed VM_MIXEDMAP flag from DAX VMAs. Now our testing shows that in the
: mean time certain customer of ours started poking into /proc/<pid>/smaps
: and looks at VMA flags there and if VM_MIXEDMAP is missing among the VMA
: flags, the application just fails to start complaining that DAX support is
: missing in the kernel.
http://lkml.kernel.org/r/alpine.DEB.2.21.1809241054050.224429@chino.kir.corp.google.com
: Commit 1860033237d4 ("mm: make PR_SET_THP_DISABLE immediately active")
: introduced a regression in that userspace cannot always determine the set
: of vmas where thp is ineligible.
: Userspace relies on the "nh" flag being emitted as part of /proc/pid/smaps
: to determine if a vma is eligible to be backed by hugepages.
: Previous to this commit, prctl(PR_SET_THP_DISABLE, 1) would cause thp to
: be disabled and emit "nh" as a flag for the corresponding vmas as part of
: /proc/pid/smaps. After the commit, thp is disabled by means of an mm
: flag and "nh" is not emitted.
: This causes smaps parsing libraries to assume a vma is eligible for thp
: and ends up puzzling the user on why its memory is not backed by thp.
In both cases userspace was relying on a semantic of a specific VMA flag.
The primary reason why that happened is a lack of a proper interface.
While this has been worked on and it will be fixed properly, it seems that
our wording could see some refinement and be more vocal about semantic
aspect of these flags as well.
Link: http://lkml.kernel.org/r/20181211143641.3503-2-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Acked-by: Jan Kara <jack@suse.cz>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Paul Oppenheimer <bepvte@gmail.com>
Cc: William Kucharski <william.kucharski@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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This patch adds stuff about new reclaim field in proc.txt
Change-Id: I1718fad12ec078e204e7a59769ce70fad7708756
Acked-by: Rob Landley <rob@landley.net>
Signed-off-by: Minchan Kim <minchan@kernel.org>
Patch-mainline: linux-mm @ 9 May 2013 16:21:29
[vinmenon@codeaurora.org: trivial merge conflict fixes]
Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>
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Cherry-picked from:
origin/upstream-f2fs-stable-linux-4.14.y
72497b8d5271 ("f2fs: turn down IO priority of discard from background")
cfe6e2f69eef ("f2fs: don't split checkpoint in fstrim")
596c97672db2 ("f2fs: issue discard commands proactively in high fs utilization")
0fbb04e9980a ("f2fs: add fsync_mode=nobarrier for non-atomic files")
13e346436f4e ("f2fs: let fstrim issue discard commands in lower priority")
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
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Pull f2fs update from Jaegeuk Kim:
"In this round, we've mainly focused on performance tuning and critical
bug fixes occurred in low-end devices. Sheng Yong introduced
lost_found feature to keep missing files during recovery instead of
thrashing them. We're preparing coming fsverity implementation. And,
we've got more features to communicate with users for better
performance. In low-end devices, some memory-related issues were
fixed, and subtle race condtions and corner cases were addressed as
well.
Enhancements:
- large nat bitmaps for more free node ids
- add three block allocation policies to pass down write hints given by user
- expose extension list to user and introduce hot file extension
- tune small devices seamlessly for low-end devices
- set readdir_ra by default
- give more resources under gc_urgent mode regarding to discard and cleaning
- introduce fsync_mode to enforce posix or not
- nowait aio support
- add lost_found feature to keep dangling inodes
- reserve bits for future fsverity feature
- add test_dummy_encryption for FBE
Bug fixes:
- don't use highmem for dentry pages
- align memory boundary for bitops
- truncate preallocated blocks in write errors
- guarantee i_times on fsync call
- clear CP_TRIMMED_FLAG correctly
- prevent node chain loop during recovery
- avoid data race between atomic write and background cleaning
- avoid unnecessary selinux violation warnings on resgid option
- GFP_NOFS to avoid deadlock in quota and read paths
- fix f2fs_skip_inode_update to allow i_size recovery
In addition to the above, there are several minor bug fixes and clean-ups"
Cherry-pick from origin/upstream-f2fs-stable-linux-4.14.y:
de465aa57271 f2fs: remain written times to update inode during fsync
d0ebaf0b37b2 f2fs: make assignment of t->dentry_bitmap more readable
7f05fb451696 f2fs: truncate preallocated blocks in error case
a0a9a51ecdd1 f2fs: fix a wrong condition in f2fs_skip_inode_update
5dc89047c9e8 f2fs: reserve bits for fs-verity
0751f01376d5 f2fs: Add a segment type check in inplace write
27d9598d4d38 f2fs: no need to initialize zero value for GFP_F2FS_ZERO
42a34ff76240 f2fs: don't track new nat entry in nat set
14040505a620 f2fs: clean up with F2FS_BLK_ALIGN
fcea9e00a0ea f2fs: check blkaddr more accuratly before issue a bio
2c217b078fee f2fs: Set GF_NOFS in read_cache_page_gfp while doing f2fs_quota_read
0a8cedc2cea3 f2fs: introduce a new mount option test_dummy_encryption
5786b414a719 f2fs: introduce F2FS_FEATURE_LOST_FOUND feature
9813cae680f0 f2fs: release locks before return in f2fs_ioc_gc_range()
cee6482cd12c f2fs: align memory boundary for bitops
8dbfcba5f5d6 f2fs: remove unneeded set_cold_node()
7e93bf8ebc34 f2fs: add nowait aio support
1e64d3ed2753 f2fs: wrap all options with f2fs_sb_info.mount_opt
7f270a67a1da f2fs: Don't overwrite all types of node to keep node chain
c6a9e6a41f4f f2fs: introduce mount option for fsync mode
82bebed3c1fd f2fs: fix to restore old mount option in ->remount_fs
808427a63b93 f2fs: wrap sb_rdonly with f2fs_readonly
5ebe362c0c60 f2fs: avoid selinux denial on CAP_SYS_RESOURCE
ea34734357a9 f2fs: support hot file extension
2189c2e46468 f2fs: fix to avoid race in between atomic write and background GC
5f6950805928 f2fs: do gc in greedy mode for whole range if gc_urgent mode is set
79f1a15fa536 f2fs: issue discard aggressively in the gc_urgent mode
aea8da88a747 f2fs: set readdir_ra by default
8fe06ea28273 f2fs: add auto tuning for small devices
073c145d5bef f2fs: add mount option for segment allocation policy
e7efe40d7aa5 f2fs: don't stop GC if GC is contended
882d0e094488 f2fs: expose extension_list sysfs entry
52320a2a28be f2fs: fix to set KEEP_SIZE bit in f2fs_zero_range
ef66237f28e9 f2fs: introduce sb_lock to make encrypt pwsalt update exclusive
c8e77267ed1f f2fs: remove redundant initialization of pointer 'p'
755dcc3262d4 f2fs: flush cp pack except cp pack 2 page at first
92223ccb699a f2fs: clean up f2fs_sb_has_xxx functions
d8ecd46ca803 f2fs: remove redundant check of page type when submit bio
99f512132e54 f2fs: fix to handle looped node chain during recovery
66a2346def3d f2fs: handle quota for orphan inodes
bd9e1956d17e f2fs: support passing down write hints to block layer with F2FS policy
d8f02c3b68c5 f2fs: support passing down write hints given by users to block layer
d4fff1411d4e f2fs: fix to clear CP_TRIMMED_FLAG
f50100868cb8 f2fs: support large nat bitmap
e9437125502c f2fs: fix to check extent cache in f2fs_drop_extent_tree
5c1d55c37f2c f2fs: restrict inline_xattr_size configuration
74d48dc6ec93 f2fs: fix heap mode to reset it back
68afcb259568 f2fs: fix potential corruption in area before F2FS_SUPER_OFFSET
6b4edfb10398 fscrypt: fix build with pre-4.6 gcc versions
4bcc4865feab fscrypt: remove 'ci' parameter from fscrypt_put_encryption_info()
69e5234f04b6 fscrypt: fix up fscrypt_fname_encrypted_size() for internal use
7919cba92304 fscrypt: define fscrypt_fname_alloc_buffer() to be for presented names
aef0017f3b1a fscrypt: calculate NUL-padding length in one place only
5232cae0e922 fscrypt: move fscrypt_symlink_data to fscrypt_private.h
169bd9ba8542 ubifs: switch to fscrypt_get_symlink()
63498ca7def3 ubifs: switch to fscrypt ->symlink() helper functions
a85637d12cb1 fscrypt: remove fscrypt_fname_usr_to_disk()
77bb20f72679 ext4: switch to fscrypt_get_symlink()
79b3f39a2e79 ext4: switch to fscrypt ->symlink() helper functions
70fe2fb67bc6 f2fs: switch to fscrypt_get_symlink()
96dda4e02d6b f2fs: switch to fscrypt ->symlink() helper functions
0063988cc044 fscrypt: new helper function - fscrypt_get_symlink()
48a0375c8889 fscrypt: new helper functions for ->symlink()
585a194dd1d0 fscrypt: trim down fscrypt.h includes
411771ab56f4 fscrypt: move fscrypt_is_dot_dotdot() to fs/crypto/fname.c
ad35db34396b fscrypt: move fscrypt_valid_enc_modes() to fscrypt_private.h
72b3e1c61d8b fscrypt: move fscrypt_operations declaration to fscrypt_supp.h
2fa9a1f9268a fscrypt: split fscrypt_dummy_context_enabled() into supp/notsupp versions
e298b5de1cca fscrypt: move fscrypt_ctx declaration to fscrypt_supp.h
8db0a6de3cf0 fscrypt: move fscrypt_info_cachep declaration to fscrypt_private.h
c73c350ade4e fscrypt: move fscrypt_control_page() to supp/notsupp headers
ca64f2f4609d fscrypt: move fscrypt_has_encryption_key() to supp/notsupp headers
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
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Changes in 4.14.21
tracing: Prevent PROFILE_ALL_BRANCHES when FORTIFY_SOURCE=y
scsi: smartpqi: allow static build ("built-in")
IB/umad: Fix use of unprotected device pointer
IB/qib: Fix comparison error with qperf compare/swap test
IB/mlx4: Fix incorrectly releasing steerable UD QPs when have only ETH ports
IB/core: Fix two kernel warnings triggered by rxe registration
IB/core: Fix ib_wc structure size to remain in 64 bytes boundary
IB/core: Avoid a potential OOPs for an unused optional parameter
selftests: seccomp: fix compile error seccomp_bpf
kselftest: fix OOM in memory compaction test
RDMA/rxe: Fix a race condition related to the QP error state
RDMA/rxe: Fix a race condition in rxe_requester()
RDMA/rxe: Fix rxe_qp_cleanup()
cpufreq: powernv: Dont assume distinct pstate values for nominal and pmin
swiotlb: suppress warning when __GFP_NOWARN is set
PM / devfreq: Propagate error from devfreq_add_device()
mwifiex: resolve reset vs. remove()/shutdown() deadlocks
ocfs2: try a blocking lock before return AOP_TRUNCATED_PAGE
powerpc/radix: Remove trace_tlbie call from radix__flush_tlb_all
powerpc/numa: Invalidate numa_cpu_lookup_table on cpu remove
powerpc/mm: Flush radix process translations when setting MMU type
powerpc/xive: Use hw CPU ids when configuring the CPU queues
powerpc: Fix DABR match on hash based systems
dma-buf: fix reservation_object_wait_timeout_rcu once more v2
s390: fix handling of -1 in set{,fs}[gu]id16 syscalls
arm64: dts: msm8916: Correct ipc references for smsm
ARM: lpc3250: fix uda1380 gpio numbers
ARM: dts: STi: Add gpio polarity for "hdmi,hpd-gpio" property
ARM: dts: nomadik: add interrupt-parent for clcd
arm: dts: mt7623: fix card detection issue on bananapi-r2
arm: spear600: Add missing interrupt-parent of rtc
arm: spear13xx: Fix dmas cells
arm: spear13xx: Fix spics gpio controller's warning
drm/i915: add GT number to intel_device_info
drm/i915/kbl: Change a KBL pci id to GT2 from GT1.5
x86/gpu: add CFL to early quirks
x86/kexec: Make kexec (mostly) work in 5-level paging mode
x86/xen: init %gs very early to avoid page faults with stack protector
x86: PM: Make APM idle driver initialize polling state
x86/entry/64: Clear extra registers beyond syscall arguments, to reduce speculation attack surface
x86/entry/64/compat: Clear registers for compat syscalls, to reduce speculation attack surface
compiler-gcc.h: Introduce __optimize function attribute
compiler-gcc.h: __nostackprotector needs gcc-4.4 and up
crypto: sun4i_ss_prng - fix return value of sun4i_ss_prng_generate
crypto: sun4i_ss_prng - convert lock to _bh in sun4i_ss_prng_generate
powerpc/mm/radix: Split linear mapping on hot-unplug
x86/mm/pti: Fix PTI comment in entry_SYSCALL_64()
x86/speculation: Update Speculation Control microcode blacklist
x86/speculation: Correct Speculation Control microcode blacklist again
Revert "x86/speculation: Simplify indirect_branch_prediction_barrier()"
KVM/x86: Reduce retpoline performance impact in slot_handle_level_range(), by always inlining iterator helper methods
X86/nVMX: Properly set spec_ctrl and pred_cmd before merging MSRs
KVM/nVMX: Set the CPU_BASED_USE_MSR_BITMAPS if we have a valid L02 MSR bitmap
x86/speculation: Clean up various Spectre related details
PM / runtime: Update links_count also if !CONFIG_SRCU
PM: cpuidle: Fix cpuidle_poll_state_init() prototype
x86/entry/64: Clear registers for exceptions/interrupts, to reduce speculation attack surface
x86/entry/64: Merge SAVE_C_REGS and SAVE_EXTRA_REGS, remove unused extensions
x86/entry/64: Merge the POP_C_REGS and POP_EXTRA_REGS macros into a single POP_REGS macro
x86/entry/64: Interleave XOR register clearing with PUSH instructions
x86/entry/64: Introduce the PUSH_AND_CLEAN_REGS macro
x86/entry/64: Use PUSH_AND_CLEAN_REGS in more cases
x86/entry/64: Get rid of the ALLOC_PT_GPREGS_ON_STACK and SAVE_AND_CLEAR_REGS macros
x86/entry/64: Indent PUSH_AND_CLEAR_REGS and POP_REGS properly
x86/entry/64: Fix paranoid_entry() frame pointer warning
x86/entry/64: Remove the unused 'icebp' macro
selftests/x86: Fix vDSO selftest segfault for vsyscall=none
selftests/x86: Clean up and document sscanf() usage
selftests/x86/pkeys: Remove unused functions
selftests/x86: Do not rely on "int $0x80" in test_mremap_vdso.c
selftests/x86: Do not rely on "int $0x80" in single_step_syscall.c
selftests/x86: Disable tests requiring 32-bit support on pure 64-bit systems
objtool: Fix segfault in ignore_unreachable_insn()
x86/debug, objtool: Annotate WARN()-related UD2 as reachable
x86/debug: Use UD2 for WARN()
x86/speculation: Fix up array_index_nospec_mask() asm constraint
nospec: Move array_index_nospec() parameter checking into separate macro
x86/speculation: Add <asm/msr-index.h> dependency
kmemcheck: remove annotations
kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK
kmemcheck: remove whats left of NOTRACK flags
kmemcheck: rip it out
kmemcheck: rip it out for real
x86/mm: Rename flush_tlb_single() and flush_tlb_one() to __flush_tlb_one_[user|kernel]()
selftests/x86/mpx: Fix incorrect bounds with old _sigfault
x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping
x86/spectre: Fix an error message
x86/cpu: Change type of x86_cache_size variable to unsigned int
x86/entry/64: Fix CR3 restore in paranoid_exit()
drm/ttm: Don't add swapped BOs to swap-LRU list
drm/ttm: Fix 'buf' pointer update in ttm_bo_vm_access_kmap() (v2)
drm/qxl: unref cursor bo when finished with it
drm/amd/powerplay: Fix smu_table_entry.handle type
drm/ast: Load lut in crtc_commit
arm64: Add missing Falkor part number for branch predictor hardening
drm/radeon: Add dpm quirk for Jet PRO (v2)
drm/radeon: adjust tested variable
rtc-opal: Fix handling of firmware error codes, prevent busy loops
mbcache: initialize entry->e_referenced in mb_cache_entry_create()
mmc: sdhci: Implement an SDHCI-specific bounce buffer
mmc: bcm2835: Don't overwrite max frequency unconditionally
Revert "mmc: meson-gx: include tx phase in the tuning process"
mlx5: fix mlx5_get_vector_affinity to start from completion vector 0
Revert "apple-gmux: lock iGP IO to protect from vgaarb changes"
jbd2: fix sphinx kernel-doc build warnings
ext4: fix a race in the ext4 shutdown path
ext4: save error to disk in __ext4_grp_locked_error()
ext4: correct documentation for grpid mount option
mm: hide a #warning for COMPILE_TEST
mm: Fix memory size alignment in devm_memremap_pages_release()
MIPS: Fix typo BIG_ENDIAN to CPU_BIG_ENDIAN
MIPS: Fix incorrect mem=X@Y handling
PCI: Disable MSI for HiSilicon Hip06/Hip07 only in Root Port mode
PCI: iproc: Fix NULL pointer dereference for BCMA
PCI: keystone: Fix interrupt-controller-node lookup
video: fbdev: atmel_lcdfb: fix display-timings lookup
console/dummy: leave .con_font_get set to NULL
rbd: whitelist RBD_FEATURE_OPERATIONS feature bit
xen: Fix {set,clear}_foreign_p2m_mapping on autotranslating guests
xenbus: track caller request id
seq_file: fix incomplete reset on read from zero offset
tracing: Fix parsing of globs with a wildcard at the beginning
mpls, nospec: Sanitize array index in mpls_label_ok()
rtlwifi: rtl8821ae: Fix connection lost problem correctly
arm64: proc: Set PTE_NG for table entries to avoid traversing them twice
qxl: alloc & use shadow for dumb buffers
drm/qxl: reapply cursor after resetting primary
xprtrdma: Fix calculation of ri_max_send_sges
xprtrdma: Fix BUG after a device removal
blk-wbt: account flush requests correctly
target/iscsi: avoid NULL dereference in CHAP auth error path
iscsi-target: make sure to wake up sleeping login worker
dm: correctly handle chained bios in dec_pending()
Btrfs: fix deadlock in run_delalloc_nocow
Btrfs: fix crash due to not cleaning up tree log block's dirty bits
Btrfs: fix extent state leak from tree log
Btrfs: fix btrfs_evict_inode to handle abnormal inodes correctly
Btrfs: fix use-after-free on root->orphan_block_rsv
Btrfs: fix unexpected -EEXIST when creating new inode
9p/trans_virtio: discard zero-length reply
mtd: nand: vf610: set correct ooblayout
ALSA: hda - Fix headset mic detection problem for two Dell machines
ALSA: usb-audio: Fix UAC2 get_ctl request with a RANGE attribute
ALSA: hda/realtek - Add headset mode support for Dell laptop
ALSA: hda/realtek - Enable Thinkpad Dock device for ALC298 platform
ALSA: hda/realtek: PCI quirk for Fujitsu U7x7
ALSA: usb-audio: add implicit fb quirk for Behringer UFX1204
ALSA: usb: add more device quirks for USB DSD devices
ALSA: seq: Fix racy pool initializations
mvpp2: fix multicast address filter
usb: Move USB_UHCI_BIG_ENDIAN_* out of USB_SUPPORT
x86/mm, mm/hwpoison: Don't unconditionally unmap kernel 1:1 pages
scsi: core: check for device state in __scsi_remove_target()
Bluetooth: BT_HCIUART now depends on SERIAL_DEV_BUS
ARM: dts: exynos: fix RTC interrupt for exynos5410
ARM: pxa/tosa-bt: add MODULE_LICENSE tag
arm64: dts: msm8916: Add missing #phy-cells
ARM: dts: s5pv210: add interrupt-parent for ohci
arm: dts: mt7623: Update ethsys binding
arm: dts: mt2701: Add reset-cells
ARM: dts: Delete bogus reference to the charlcd
media: r820t: fix r820t_write_reg for KASAN
mmc: sdhci-of-esdhc: disable SD clock for clock value 0
mmc: sdhci-of-esdhc: fix eMMC couldn't work after kexec
mmc: sdhci-of-esdhc: fix the mmc error after sleep on ls1046ardb
ASoC: acpi: fix machine driver selection based on quirk
ovl: hash directory inodes for fsnotify
Linux 4.14.21
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
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commit 9f0372488cc9243018a812e8cfbf27de650b187b upstream.
The grpid option is currently described as being the same as nogrpid.
Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Userspace processes often have multiple allocators that each do
anonymous mmaps to get memory. When examining memory usage of
individual processes or systems as a whole, it is useful to be
able to break down the various heaps that were allocated by
each layer and examine their size, RSS, and physical memory
usage.
This patch adds a user pointer to the shared union in
vm_area_struct that points to a null terminated string inside
the user process containing a name for the vma. vmas that
point to the same address will be merged, but vmas that
point to equivalent strings at different addresses will
not be merged.
Userspace can set the name for a region of memory by calling
prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, start, len, (unsigned long)name);
Setting the name to NULL clears it.
The names of named anonymous vmas are shown in /proc/pid/maps
as [anon:<name>] and in /proc/pid/smaps in a new "Name" field
that is only present for named vmas. If the userspace pointer
is no longer valid all or part of the name will be replaced
with "<fault>".
The idea to store a userspace pointer to reduce the complexity
within mm (at the expense of the complexity of reading
/proc/pid/mem) came from Dave Hansen. This results in no
runtime overhead in the mm subsystem other than comparing
the anon_name pointers when considering vma merging. The pointer
is stored in a union with fieds that are only used on file-backed
mappings, so it does not increase memory usage.
Includes fix from Jed Davis <jld@mozilla.com> for typo in
prctl_set_vma_anon_name, which could attempt to set the name
across two vmas at the same time due to a typo, which might
corrupt the vma list. Fix it to use tmp instead of end to limit
the name setting to a single vma at a time.
Change-Id: I9aa7b6b5ef536cd780599ba4e2fba8ceebe8b59f
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
[AmitP: Fix get_user_pages_remote() call to align with upstream commit
5b56d49fc31d ("mm: add locked parameter to get_user_pages_remote()")]
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
Pull overlayfs fixes from Miklos Szeredi:
"Fix a regression in 4.14 and one in 4.13. The latter is a case when
Docker is doing something it really shouldn't and gets away with it.
We now print a warning instead of erroring out.
There are also fixes to several error paths"
* 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: fix regression caused by exclusive upper/work dir protection
ovl: fix missing unlock_rename() in ovl_do_copy_up()
ovl: fix dentry leak in ovl_indexdir_cleanup()
ovl: fix dput() of ERR_PTR in ovl_cleanup_index()
ovl: fix error value printed in ovl_lookup_index()
ovl: fix may_write_real() for overlayfs directories
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Enforcing exclusive ownership on upper/work dirs caused a docker
regression: https://github.com/moby/moby/issues/34672.
Euan spotted the regression and pointed to the offending commit.
Vivek has brought the regression to my attention and provided this
reproducer:
Terminal 1:
mount -t overlay -o workdir=work,lowerdir=lower,upperdir=upper none
merged/
Terminal 2:
unshare -m
Terminal 1:
umount merged
mount -t overlay -o workdir=work,lowerdir=lower,upperdir=upper none
merged/
mount: /root/overlay-testing/merged: none already mounted or mount point
busy
To fix the regression, I replaced the error with an alarming warning.
With index feature enabled, mount does fail, but logs a suggestion to
override exclusive dir protection by disabling index.
Note that index=off mount does take the inuse locks, so a concurrent
index=off will issue the warning and a concurrent index=on mount will fail.
Documentation was updated to reflect this change.
Fixes: 2cac0c00a6cd ("ovl: get exclusive ownership on upper/work dirs")
Cc: <stable@vger.kernel.org> # v4.13
Reported-by: Euan Kemp <euank@euank.com>
Reported-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg KH:
"Here are a few small fixes for 4.14-rc4.
The removal of DRIVER_ATTR() was almost completed by 4.14-rc1, but one
straggler made it in through some other tree (odds are, one of
mine...) So there's a simple removal of the last user, and then
finally the macro is removed from the tree.
There's a fix for old crazy udev instances that insist on reloading a
module when it is removed from the kernel due to the new uevents for
bind/unbind. This fixes the reported regression, hopefully some year
in the future we can drop the workaround, once users update to the
latest version, but I'm not holding my breath.
And then there's a build fix for a linker warning, and a buffer
overflow fix to match the PCI fixes you took through the PCI tree in
the same area.
All of these have been in linux-next for a few weeks while I've been
traveling, sorry for the delay"
* tag 'driver-core-4.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
driver core: remove DRIVER_ATTR
fpga: altera-cvp: remove DRIVER_ATTR() usage
driver core: platform: Don't read past the end of "driver_override" buffer
base: arch_topology: fix section mismatch build warnings
driver core: suppress sending MODALIAS in UNBIND uevents
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DRIVER_ATTR is no longer in use, and driver authors should be using
DRIVER_ATTR_RW() or DRIVER_ATTR_RO() or DRIVER_ATTR_WO() instead in
order to always get the permissions correct. So remove it so that no
one can use it anymore.
Acked-by: Alan Tull <atull@kernel.org>
Reviewed-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"Convert default dialect to smb2.1 or later to allow connecting to
Windows 7 for example, also includes some fixes for stable"
* tag '4.14-smb3-multidialect-support-and-fixes-for-stable' of git://git.samba.org/sfrench/cifs-2.6:
Update version of cifs module
cifs: hide unused functions
SMB3: Add support for multidialect negotiate (SMB2.1 and later)
CIFS/SMB3: Update documentation to reflect SMB3 and various changes
cifs: check rsp for NULL before dereferencing in SMB2_open
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Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux
Pull orangefs updates from Mike Marshall:
"Some cleanups and a big bug fix for ACLs.
When I was reviewing Jan Kara's ACL patch, I realized that Orangefs
ACL code was busted, not just in the kernel module, but in the server
as well. I've been working on the code in the server mostly, but
here's one kernel patch, there will be more"
* tag 'for-linus-4.14-ofs2' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux:
orangefs: Adjust three checks for null pointers
orangefs: Use kcalloc() in orangefs_prepare_cdm_array()
orangefs: Delete error messages for a failed memory allocation in five functions
orangefs: constify xattr_handler structure
orangefs: don't call filemap_write_and_wait from fsync
orangefs: off by ones in xattr size checks
orangefs: documentation clean up
orangefs: react properly to posix_acl_update_mode's aftermath.
orangefs: Don't clear SGID when inheriting ACLs
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Signed-off-by: Mike Marshall <hubcap@omnibond.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull mount flag updates from Al Viro:
"Another chunk of fmount preparations from dhowells; only trivial
conflicts for that part. It separates MS_... bits (very grotty
mount(2) ABI) from the struct super_block ->s_flags (kernel-internal,
only a small subset of MS_... stuff).
This does *not* convert the filesystems to new constants; only the
infrastructure is done here. The next step in that series is where the
conflicts would be; that's the conversion of filesystems. It's purely
mechanical and it's better done after the merge, so if you could run
something like
list=$(for i in MS_RDONLY MS_NOSUID MS_NODEV MS_NOEXEC MS_SYNCHRONOUS MS_MANDLOCK MS_DIRSYNC MS_NOATIME MS_NODIRATIME MS_SILENT MS_POSIXACL MS_KERNMOUNT MS_I_VERSION MS_LAZYTIME; do git grep -l $i fs drivers/staging/lustre drivers/mtd ipc mm include/linux; done|sort|uniq|grep -v '^fs/namespace.c$')
sed -i -e 's/\<MS_RDONLY\>/SB_RDONLY/g' \
-e 's/\<MS_NOSUID\>/SB_NOSUID/g' \
-e 's/\<MS_NODEV\>/SB_NODEV/g' \
-e 's/\<MS_NOEXEC\>/SB_NOEXEC/g' \
-e 's/\<MS_SYNCHRONOUS\>/SB_SYNCHRONOUS/g' \
-e 's/\<MS_MANDLOCK\>/SB_MANDLOCK/g' \
-e 's/\<MS_DIRSYNC\>/SB_DIRSYNC/g' \
-e 's/\<MS_NOATIME\>/SB_NOATIME/g' \
-e 's/\<MS_NODIRATIME\>/SB_NODIRATIME/g' \
-e 's/\<MS_SILENT\>/SB_SILENT/g' \
-e 's/\<MS_POSIXACL\>/SB_POSIXACL/g' \
-e 's/\<MS_KERNMOUNT\>/SB_KERNMOUNT/g' \
-e 's/\<MS_I_VERSION\>/SB_I_VERSION/g' \
-e 's/\<MS_LAZYTIME\>/SB_LAZYTIME/g' \
$list
and commit it with something along the lines of 'convert filesystems
away from use of MS_... constants' as commit message, it would save a
quite a bit of headache next cycle"
* 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
VFS: Differentiate mount flags (MS_*) from internal superblock flags
VFS: Convert sb->s_flags & MS_RDONLY to sb_rdonly(sb)
vfs: Add sb_rdonly(sb) to query the MS_RDONLY flag on s_flags
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Differentiate the MS_* flags passed to mount(2) from the internal flags set
in the super_block's s_flags. s_flags are now called SB_*, with the names
and the values for the moment mirroring the MS_* flags that they're
equivalent to.
In this patch, just the headers are altered and some kernel code where
blind automated conversion isn't necessarily correct.
Note that this shows up some interesting issues:
(1) Some MS_* flags get translated to MNT_* flags (such as MS_NODEV ->
MNT_NODEV) without passing this on to the filesystem, but some
filesystems set such flags anyway.
(2) The ->remount_fs() methods of some filesystems adjust the *flags
argument by setting MS_* flags in it, such as MS_NOATIME - but these
flags are then scrubbed by do_remount_sb() (only the occupants of
MS_RMT_MASK are permitted: MS_RDONLY, MS_SYNCHRONOUS, MS_MANDLOCK,
MS_I_VERSION and MS_LAZYTIME)
I'm not sure what's the best way to solve all these cases.
Suggested-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
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