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| author | Peter Zijlstra <peterz@infradead.org> | 2015-09-16 16:10:40 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-09-23 09:48:53 +0200 |
| commit | 21199f27b430576552b26210b3194a363d7f05cd (patch) | |
| tree | 3fa021f09a7e2f777b18c35acc801222a466ae36 /kernel/groups.c | |
| parent | bcee19f424a0d8c26ecf2607b73c690802658b29 (diff) | |
| download | op-kernel-dev-21199f27b430576552b26210b3194a363d7f05cd.zip op-kernel-dev-21199f27b430576552b26210b3194a363d7f05cd.tar.gz | |
locking/lockdep: Fix hlock->pin_count reset on lock stack rebuilds
Various people reported hitting the "unpinning an unpinned lock"
warning. As it turns out there are 2 places where we take a lock out
of the middle of a stack, and in those cases it would fail to preserve
the pin_count when rebuilding the lock stack.
Reported-by: Sasha Levin <sasha.levin@oracle.com>
Reported-by: Tim Spriggs <tspriggs@apple.com>
Tested-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: davej@codemonkey.org.uk
Link: http://lkml.kernel.org/r/20150916141040.GA11639@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/groups.c')
0 files changed, 0 insertions, 0 deletions
