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authorPavel Machek <pavel@ucw.cz>2005-09-03 18:56:53 -0400
committerLinus Torvalds <torvalds@evo.osdl.org>2005-09-05 03:06:14 -0400
commit2a23b5d1e119fd10e25b8e93464c8d549f5a5c5d (patch)
tree60eede3a1a0a92837c0207de2750880d9a309db1 /kernel
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')
-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)
38 processes around? */ 38 processes around? */
39 long save; 39 long save;
40 save = current->state; 40 save = current->state;
41 current->state = TASK_UNINTERRUPTIBLE;
42 pr_debug("%s entered refrigerator\n", current->comm); 41 pr_debug("%s entered refrigerator\n", current->comm);
43 printk("="); 42 printk("=");
44 43
@@ -47,8 +46,10 @@ void refrigerator(void)
47 recalc_sigpending(); /* We sent fake signal, clean it up */ 46 recalc_sigpending(); /* We sent fake signal, clean it up */
48 spin_unlock_irq(&current->sighand->siglock); 47 spin_unlock_irq(&current->sighand->siglock);
49 48
50 while (frozen(current)) 49 while (frozen(current)) {
50 current->state = TASK_UNINTERRUPTIBLE;
51 schedule(); 51 schedule();
52 }
52 pr_debug("%s left refrigerator\n", current->comm); 53 pr_debug("%s left refrigerator\n", current->comm);
53 current->state = save; 54 current->state = save;
54} 55}