This is a note to let you know that I've just added the patch titled
bcache: Fix a dumb journal discard bug
to the 3.11-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
bcache-fix-a-dumb-journal-discard-bug.patch
and it can be found in the queue-3.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 6d9d21e35fbfa2934339e96934f862d118abac23 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@xxxxxxxxxxxxx>
Date: Mon, 23 Sep 2013 23:17:27 -0700
Subject: bcache: Fix a dumb journal discard bug
From: Kent Overstreet <kmo@xxxxxxxxxxxxx>
commit 6d9d21e35fbfa2934339e96934f862d118abac23 upstream.
That switch statement was obviously wrong, leading to some sort of weird
spinning on rare occasion with discards enabled...
Signed-off-by: Kent Overstreet <kmo@xxxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/md/bcache/journal.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/md/bcache/journal.c
+++ b/drivers/md/bcache/journal.c
@@ -428,7 +428,7 @@ static void do_journal_discard(struct ca
return;
}
- switch (atomic_read(&ja->discard_in_flight) == DISCARD_IN_FLIGHT) {
+ switch (atomic_read(&ja->discard_in_flight)) {
case DISCARD_IN_FLIGHT:
return;
Patches currently in stable-queue which might be from kmo@xxxxxxxxxxxxx are
queue-3.11/block-fix-bio_copy_data.patch
queue-3.11/bcache-fix-a-dumb-journal-discard-bug.patch
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