lockdep: fix incorrect state name

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In the recent mark_lock_irq() rework a bug snuck in that would report the
state of write locks causing irq inversion under a read lock as a read
lock.

Fix this by masking the read bit of the state when validating write
dependencies.

Reported-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1236172646.5330.7450.camel@laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

...

This commit is contained in:

Peter Zijlstra 2009-03-04 13:51:13 +01:00 • committed by Ingo Molnar

parent 6700ec65c2

commit 1c21f14ec4

1 changed files with 3 additions and 2 deletions

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kernel/lockdep.c

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