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| author | Theodore Ts'o <tytso@mit.edu> | 2013-03-04 11:59:12 -0500 |
|---|---|---|
| committer | TARKZiM <tom8476oo@gmail.com> | 2022-08-25 20:05:39 +0800 |
| commit | 9e779e1e2861f523633e53c2faa2ceb58426d9e9 (patch) | |
| tree | 6900de7afa5d0f7b6a42a0391f50ca568a8b5dc3 /net/lapb/lapb_timer.c | |
| parent | 9220c20fb11d1e6cf889a708fa47afbda50eab0f (diff) | |
random: fix locking dependency with the tasklist_lock
Commit 6133705494bb introduced a circular lock dependency because
posix_cpu_timers_exit() is called by release_task(), which is holding
a writer lock on tasklist_lock, and this can cause a deadlock since
kill_fasync() gets called with nonblocking_pool.lock taken.
There's no reason why kill_fasync() needs to be taken while the random
pool is locked, so move it out to fix this locking dependency.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reported-by: Russ Dill <Russ.Dill@gmail.com>
Cc: stable@kernel.org
Diffstat (limited to 'net/lapb/lapb_timer.c')
0 files changed, 0 insertions, 0 deletions