diff options
| author | Patrick Daly <pdaly@codeaurora.org> | 2019-12-11 15:52:05 -0800 |
|---|---|---|
| committer | Marcos Tolcachir <marcostolcachir@gmail.com> | 2022-01-05 04:58:12 +0100 |
| commit | 34cb672cee3cb66320ae6e347eeb65e4b446ab2b (patch) | |
| tree | 75ad76098b96d88e671b3ca26473ce8820b2cfff | |
| parent | de53a682d1028359bce98c69b54859ca9f584ade (diff) | |
addison: init: post_boot: Ensure SLAB_STORE_USER is disabled for zram kmem_caches
ZRAM compression uses the linux slub allocator its internal data
structures. If these internal data structure consume a lot of memory,
ZRAM compression may increase memory usage, rather than decrease it
as expected. Decrease the chance of this occuring by ensuring the
SLAB_STORE_USER debug option is disabled.
Change-Id: I4684feda94b7bebacb6218b7f979c95771b0ee10
Signed-off-by: Patrick Daly <pdaly@codeaurora.org>
| -rw-r--r-- | rootdir/bin/init.qcom.post_boot.sh | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/rootdir/bin/init.qcom.post_boot.sh b/rootdir/bin/init.qcom.post_boot.sh index 3293d7c..8b28021 100644 --- a/rootdir/bin/init.qcom.post_boot.sh +++ b/rootdir/bin/init.qcom.post_boot.sh @@ -224,6 +224,16 @@ function configure_zram_parameters() { else echo $zRamSizeBytes > /sys/block/zram0/disksize fi + + # ZRAM may use more memory than it saves if SLAB_STORE_USER + # debug option is enabled. + if [ -e /sys/kernel/slab/zs_handle ]; then + echo 0 > /sys/kernel/slab/zs_handle/store_user + fi + if [ -e /sys/kernel/slab/zspage ]; then + echo 0 > /sys/kernel/slab/zspage/store_user + fi + mkswap /dev/block/zram0 swapon /dev/block/zram0 -p 32758 fi |