[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>
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@ -38,7 +38,6 @@ void refrigerator(void)
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processes around? */
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long save;
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save = current->state;
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current->state = TASK_UNINTERRUPTIBLE;
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pr_debug("%s entered refrigerator\n", current->comm);
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printk("=");
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@ -47,8 +46,10 @@ void refrigerator(void)
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recalc_sigpending(); /* We sent fake signal, clean it up */
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spin_unlock_irq(¤t->sighand->siglock);
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while (frozen(current))
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while (frozen(current)) {
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current->state = TASK_UNINTERRUPTIBLE;
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schedule();
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}
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pr_debug("%s left refrigerator\n", current->comm);
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current->state = save;
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}
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