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| author | NeilBrown <neilb@suse.de> | 2013-11-28 10:34:18 +1100 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2013-11-28 11:00:08 +1100 |
| commit | 142d44c310819e1965ca70b4d55d7679f5797e25 (patch) | |
| tree | f6c369bd20d2c3213a5dcbb738d9e13a97f6f951 /drivers | |
| parent | 0c775d5208284700de423e6746259da54a42e1f5 (diff) | |
| download | linux-142d44c310819e1965ca70b4d55d7679f5797e25.tar.gz linux-142d44c310819e1965ca70b4d55d7679f5797e25.tar.bz2 linux-142d44c310819e1965ca70b4d55d7679f5797e25.zip | |
md: test mddev->flags more safely in md_check_recovery.
commit 7a0a5355cbc71efa md: Don't test all of mddev->flags at once.
made most tests on mddev->flags safer, but missed one.
When
commit 260fa034ef7a4ff8b7306 md: avoid deadlock when dirty buffers during md_stop.
added MD_STILL_CLOSED, this caused md_check_recovery to misbehave.
It can think there is something to do but find nothing. This can
lead to the md thread spinning during array shutdown.
https://bugzilla.kernel.org/show_bug.cgi?id=65721
Reported-and-tested-by: Richard W.M. Jones <rjones@redhat.com>
Fixes: 260fa034ef7a4ff8b7306
Cc: stable@vger.kernel.org (3.12)
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/md/md.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index b6b7a2866c9e..e60cebf3f519 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -7777,7 +7777,7 @@ void md_check_recovery(struct mddev *mddev) if (mddev->ro && !test_bit(MD_RECOVERY_NEEDED, &mddev->recovery)) return; if ( ! ( - (mddev->flags & ~ (1<<MD_CHANGE_PENDING)) || + (mddev->flags & MD_UPDATE_SB_FLAGS & ~ (1<<MD_CHANGE_PENDING)) || test_bit(MD_RECOVERY_NEEDED, &mddev->recovery) || test_bit(MD_RECOVERY_DONE, &mddev->recovery) || (mddev->external == 0 && mddev->safemode == 1) || |