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authorNeilBrown <neilb@suse.de>2014-09-18 11:09:04 +1000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-10-05 14:54:14 -0700
commita8f165f517656c5c84dcb059ea2d51fa73f2571c (patch)
tree162457449380755e49fdf6feebda35a5b0d44f5b
parent7a0a059f9866f6083f9c6e0c1ccc63f2d07ffcd6 (diff)
downloadlinux-linaro-stable-a8f165f517656c5c84dcb059ea2d51fa73f2571c.tar.gz
md/raid1: fix_read_error should act on all non-faulty devices.
commit b8cb6b4c121e1bf1963c16ed69e7adcb1bc301cd upstream. If a devices is being recovered it is not InSync and is not Faulty. If a read error is experienced on that device, fix_read_error() will be called, but it ignores non-InSync devices. So it will neither fix the error nor fail the device. It is incorrect that fix_read_error() ignores non-InSync devices. It should only ignore Faulty devices. So fix it. This became a bug when we allowed reading from a device that was being recovered. It is suitable for any subsequent -stable kernel. Fixes: da8840a747c0dbf49506ec906757a6b87b9741e9 Reported-by: Alexander Lyakas <alex.bolshoy@gmail.com> Tested-by: Alexander Lyakas <alex.bolshoy@gmail.com> Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/md/raid1.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index a176791509f6..e885dbf08c40 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -2051,7 +2051,7 @@ static void fix_read_error(struct r1conf *conf, int read_disk,
d--;
rdev = conf->mirrors[d].rdev;
if (rdev &&
- test_bit(In_sync, &rdev->flags))
+ !test_bit(Faulty, &rdev->flags))
r1_sync_page_io(rdev, sect, s,
conf->tmppage, WRITE);
}
@@ -2063,7 +2063,7 @@ static void fix_read_error(struct r1conf *conf, int read_disk,
d--;
rdev = conf->mirrors[d].rdev;
if (rdev &&
- test_bit(In_sync, &rdev->flags)) {
+ !test_bit(Faulty, &rdev->flags)) {
if (r1_sync_page_io(rdev, sect, s,
conf->tmppage, READ)) {
atomic_add(s, &rdev->corrected_errors);