Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=7e5c1e830b2310359a4cfbbf89895dde4abd996a
Commit: 7e5c1e830b2310359a4cfbbf89895dde4abd996a
Parent: df922075f2a55b1ae71a6fe589c1cc1b91381f4f
Author: Milan Broz <[EMAIL PROTECTED]>
AuthorDate: Fri Feb 8 02:09:49 2008 +0000
Committer: Alasdair G Kergon <[EMAIL PROTECTED]>
CommitDate: Fri Feb 8 02:09:49 2008 +0000
dm: add missing memory barrier to dm_suspend
Add memory barrier to fix atomic_read of pending value.
Signed-off-by: Milan Broz <[EMAIL PROTECTED]>
Signed-off-by: Alasdair G Kergon <[EMAIL PROTECTED]>
---
drivers/md/dm.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index f2d24eb..466a6bf 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1410,6 +1410,7 @@ int dm_suspend(struct mapped_device *md, unsigned
suspend_flags)
while (1) {
set_current_state(TASK_INTERRUPTIBLE);
+ smp_mb();
if (!atomic_read(&md->pending) || signal_pending(current))
break;
-
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