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authorPavel Machek <pavel@ucw.cz>2005-09-03 15:56:53 -0700
committerLinus Torvalds <torvalds@evo.osdl.org>2005-09-05 00:06:14 -0700
commit2a23b5d1e119fd10e25b8e93464c8d549f5a5c5d (patch)
tree60eede3a1a0a92837c0207de2750880d9a309db1 /kernel/power/process.c
parent52fdd08903a1d1162e184114837e232640191627 (diff)
[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>
Diffstat (limited to 'kernel/power/process.c')
-rw-r--r--kernel/power/process.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/kernel/power/process.c b/kernel/power/process.c
index 3bd0d261818f..f7da5bfc914e 100644
--- a/kernel/power/process.c
+++ b/kernel/power/process.c
@@ -38,7 +38,6 @@ void refrigerator(void)
processes around? */
long save;
save = current->state;
- current->state = TASK_UNINTERRUPTIBLE;
pr_debug("%s entered refrigerator\n", current->comm);
printk("=");
@@ -47,8 +46,10 @@ void refrigerator(void)
recalc_sigpending(); /* We sent fake signal, clean it up */
spin_unlock_irq(&current->sighand->siglock);
- while (frozen(current))
+ while (frozen(current)) {
+ current->state = TASK_UNINTERRUPTIBLE;
schedule();
+ }
pr_debug("%s left refrigerator\n", current->comm);
current->state = save;
}

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