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authorWaiman Long <longman@redhat.com>2019-04-13 13:22:44 -0400
committerIngo Molnar <mingo@kernel.org>2019-04-14 11:09:35 +0200
commit26536e7c242e2b0f73c25c46fc50d2525ebe400b (patch)
tree6f568fafe7071e3c27b89c971d68a4fbb064458d /kernel/locking
parent364f784f048c984721986db90c95ca8350213c91 (diff)
downloadlinux-26536e7c242e2b0f73c25c46fc50d2525ebe400b.tar.bz2
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/locking')
-rw-r--r--kernel/locking/rwsem.h3
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 ")) \