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[PATCH] lockdep: annotate af_unix locking

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Teach special (recursive) locking code to the lock validator.  Also splits
af_unix's sk_receive_queue.lock class from the other networking skb-queue
locks.  Has no effect on non-lockdep kernels.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Ingo Molnar 2006-07-03 00:25:12 -07:00 • committed by Linus Torvalds
parent da21f24dd7
commit a09785a241
2 changed files with 14 additions and 1 deletions
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3
include/net/af_unix.h
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@ -67,6 +67,9 @@ struct unix_skb_parms {
#define unix_state_rlock(s) spin_lock(&unix_sk(s)->lock)
#define unix_state_runlock(s) spin_unlock(&unix_sk(s)->lock)
#define unix_state_wlock(s) spin_lock(&unix_sk(s)->lock)
#define unix_state_wlock_nested(s) \
spin_lock_nested(&unix_sk(s)->lock, \
SINGLE_DEPTH_NESTING)
#define unix_state_wunlock(s) spin_unlock(&unix_sk(s)->lock)
#ifdef __KERNEL__