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[PATCH] initialise pi_lock if CONFIG_RT_MUTEXES=N 

Fixes a bogus lockdep warning which causes lockdep to disable itself.

Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Zilvinas Valinskas 2007-03-16 13:38:34 -08:00 committed by Linus Torvalds
parent 35ae834fa0
commit e29e175b0f
1 changed files with 1 additions and 1 deletions
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kernel/fork.c
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@ -933,8 +933,8 @@ asmlinkage long sys_set_tid_address(int __user *tidptr)
static inline void rt_mutex_init_task(struct task_struct *p) static inline void rt_mutex_init_task(struct task_struct *p)
{ {
#ifdef CONFIG_RT_MUTEXES
spin_lock_init(&p->pi_lock); spin_lock_init(&p->pi_lock);
#ifdef CONFIG_RT_MUTEXES
plist_head_init(&p->pi_waiters, &p->pi_lock); plist_head_init(&p->pi_waiters, &p->pi_lock);
p->pi_blocked_on = NULL; p->pi_blocked_on = NULL;
#endif #endif