xiaomi-sm8450/android_kernel_xiaomi_sm8450
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Merge branch 'master' into for-next

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Sync with Linus' tree to be able to apply pending patches that
are based on newer code already present upstream.
This commit is contained in:
Jiri Kosina
2011-07-11 14:15:48 +02:00
parent c172d82500 e3bbfa78ba
commit b7e9c223be
993 changed files with 34561 additions and 5907 deletions
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31
kernel/exit.c
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@@ -560,29 +560,28 @@ void exit_files(struct task_struct *tsk)
#ifdef CONFIG_MM_OWNER
/*
* Task p is exiting and it owned mm, lets find a new owner for it
* A task is exiting. If it owned this mm, find a new owner for the mm.
*/
static inline int
mm_need_new_owner(struct mm_struct *mm, struct task_struct *p)
{
/*
* If there are other users of the mm and the owner (us) is exiting
* we need to find a new owner to take on the responsibility.
*/
if (atomic_read(&mm->mm_users) <= 1)
return 0;
if (mm->owner != p)
return 0;
return 1;
}
void mm_update_next_owner(struct mm_struct *mm)
{
struct task_struct *c, *g, *p = current;
retry:
if (!mm_need_new_owner(mm, p))
/*
* If the exiting or execing task is not the owner, it's
* someone else's problem.
*/
if (mm->owner != p)
return;
/*
* The current owner is exiting/execing and there are no other
* candidates. Do not leave the mm pointing to a possibly
* freed task structure.
*/
if (atomic_read(&mm->mm_users) <= 1) {
mm->owner = NULL;
return;
}
read_lock(&tasklist_lock);
/*