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lockdep/waitqueues: Add better annotation

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-> #2 (&tty->write_wait){-.-...}:

is a lot more informative than:

 -> #2 (key#19){-.....}:

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/n/tip-8zpopbny51023rdb0qq67eye@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Peter Zijlstra 2011-12-13 13:20:54 +01:00 • committed by Ingo Molnar
parent 2d2b7749e8
commit f07fdec50a
2 changed files with 4 additions and 4 deletions
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4
kernel/wait.c
View file

@ -10,10 +10,10 @@
#include <linux/wait.h>
#include <linux/hash.h>
void __init_waitqueue_head(wait_queue_head_t *q, struct lock_class_key *key)
void __init_waitqueue_head(wait_queue_head_t *q, const char *name, struct lock_class_key *key)
{
spin_lock_init(&q->lock);
lockdep_set_class(&q->lock, key);
lockdep_set_class_and_name(&q->lock, key, name);
INIT_LIST_HEAD(&q->task_list);
}