]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
locking/mutex: Add p->blocked_on wrappers for correctness checks
authorValentin Schneider <valentin.schneider@arm.com>
Sat, 12 Jul 2025 03:33:44 +0000 (03:33 +0000)
committerPeter Zijlstra <peterz@infradead.org>
Mon, 14 Jul 2025 15:16:32 +0000 (17:16 +0200)
commita4f0b6fef4b08e9928449206390133e48ac185a7
tree2797d4f803c8036e99df543520a6da633889a18e
parent44e4e0297c3c01987399bb9973f4d22a096a62c2
locking/mutex: Add p->blocked_on wrappers for correctness checks

This lets us assert mutex::wait_lock is held whenever we access
p->blocked_on, as well as warn us for unexpected state changes.

[fix conflicts, call in more places]
[jstultz: tweaked commit subject, reworked a good bit]
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Connor O'Brien <connoro@google.com>
Signed-off-by: John Stultz <jstultz@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: K Prateek Nayak <kprateek.nayak@amd.com>
Link: https://lkml.kernel.org/r/20250712033407.2383110-4-jstultz@google.com
include/linux/sched.h
kernel/locking/mutex-debug.c
kernel/locking/mutex.c
kernel/locking/ww_mutex.h