diff options
| author | Waiman Long <longman@redhat.com> | 2019-04-13 19:22:44 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-04-14 11:09:35 +0200 |
| commit | 26536e7c242e2b0f73c25c46fc50d2525ebe400b (patch) | |
| tree | 6f568fafe7071e3c27b89c971d68a4fbb064458d /kernel | |
| parent | locking/rwsem: Optimize rwsem structure for uncontended lock acquisition (diff) | |
| download | linux-26536e7c242e2b0f73c25c46fc50d2525ebe400b.tar.xz linux-26536e7c242e2b0f73c25c46fc50d2525ebe400b.zip | |
locking/rwsem: Prevent unneeded warning during locking selftest
Disable the DEBUG_RWSEMS check when locking selftest is running with
debug_locks_silent flag set.
Signed-off-by: Waiman Long <longman@redhat.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: huang ying <huang.ying.caritas@gmail.com>
Link: http://lkml.kernel.org/r/20190413172259.2740-2-longman@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/locking/rwsem.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/locking/rwsem.h b/kernel/locking/rwsem.h index 37db17890e36..64877f5294e3 100644 --- a/kernel/locking/rwsem.h +++ b/kernel/locking/rwsem.h @@ -30,7 +30,8 @@ #ifdef CONFIG_DEBUG_RWSEMS # define DEBUG_RWSEMS_WARN_ON(c, sem) do { \ - if (WARN_ONCE(c, "DEBUG_RWSEMS_WARN_ON(%s): count = 0x%lx, owner = 0x%lx, curr 0x%lx, list %sempty\n",\ + if (!debug_locks_silent && \ + WARN_ONCE(c, "DEBUG_RWSEMS_WARN_ON(%s): count = 0x%lx, owner = 0x%lx, curr 0x%lx, list %sempty\n",\ #c, atomic_long_read(&(sem)->count), \ (long)((sem)->owner), (long)current, \ list_empty(&(sem)->wait_list) ? "" : "not ")) \ |