Commit 2a23b5d1 authored by Pavel Machek's avatar Pavel Machek Committed by Linus Torvalds

[PATCH] remove busywait in refrigerator

This should make refrigerator sleep properly, not busywait after the first
schedule() returns.
Signed-off-by: default avatarPavel Machek <pavel@suse.cz>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 52fdd089
...@@ -38,7 +38,6 @@ void refrigerator(void) ...@@ -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) ...@@ -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(&current->sighand->siglock); spin_unlock_irq(&current->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;
} }
......
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