[PATCH] remove busywait in refrigerator
This should make refrigerator sleep properly, not busywait after the first schedule() returns. Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
parent
52fdd08903
commit
2a23b5d1e1
|
@ -38,7 +38,6 @@ void refrigerator(void)
|
||||||
processes around? */
|
processes around? */
|
||||||
long save;
|
long save;
|
||||||
save = current->state;
|
save = current->state;
|
||||||
current->state = TASK_UNINTERRUPTIBLE;
|
|
||||||
pr_debug("%s entered refrigerator\n", current->comm);
|
pr_debug("%s entered refrigerator\n", current->comm);
|
||||||
printk("=");
|
printk("=");
|
||||||
|
|
||||||
|
@ -47,8 +46,10 @@ void refrigerator(void)
|
||||||
recalc_sigpending(); /* We sent fake signal, clean it up */
|
recalc_sigpending(); /* We sent fake signal, clean it up */
|
||||||
spin_unlock_irq(¤t->sighand->siglock);
|
spin_unlock_irq(¤t->sighand->siglock);
|
||||||
|
|
||||||
while (frozen(current))
|
while (frozen(current)) {
|
||||||
|
current->state = TASK_UNINTERRUPTIBLE;
|
||||||
schedule();
|
schedule();
|
||||||
|
}
|
||||||
pr_debug("%s left refrigerator\n", current->comm);
|
pr_debug("%s left refrigerator\n", current->comm);
|
||||||
current->state = save;
|
current->state = save;
|
||||||
}
|
}
|
||||||
|
|
Reference in New Issue