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[PATCH] lockdep: annotate sock_lock_init()

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Teach special (multi-initialized, per-address-family) locking code to the lock
validator.  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 5436552448
commit da21f24dd7
2 changed files with 20 additions and 0 deletions
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4
include/net/sock.h
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@ -80,8 +80,12 @@ typedef struct {
wait_queue_head_t wq;
} socket_lock_t;
extern struct lock_class_key af_family_keys[AF_MAX];
#define sock_lock_init(__sk) \
do { spin_lock_init(&((__sk)->sk_lock.slock)); \
lockdep_set_class(&(__sk)->sk_lock.slock, \
af_family_keys + (__sk)->sk_family); \
(__sk)->sk_lock.owner = NULL; \
init_waitqueue_head(&((__sk)->sk_lock.wq)); \
} while(0)