diff options
| author | Paul Clements <paul.clements@us.sios.com> | 2021-04-15 17:17:57 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-12 08:39:58 +0200 |
| commit | 538244fba59fde17186322776247cd9c05be86dd (patch) | |
| tree | bd9e6899b10b2e5d424937414d8f58ee8f1476d5 /drivers | |
| parent | 3606420d57140dfbcda3fd2c0ae94bdb26635639 (diff) | |
md/raid1: properly indicate failure when ending a failed write request
commit 2417b9869b81882ab90fd5ed1081a1cb2d4db1dd upstream.
This patch addresses a data corruption bug in raid1 arrays using bitmaps.
Without this fix, the bitmap bits for the failed I/O end up being cleared.
Since we are in the failure leg of raid1_end_write_request, the request
either needs to be retried (R1BIO_WriteError) or failed (R1BIO_Degraded).
Fixes: eeba6809d8d5 ("md/raid1: end bio when the device faulty")
Cc: stable@vger.kernel.org # v5.2+
Signed-off-by: Paul Clements <paul.clements@us.sios.com>
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/md/raid1.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index d2378765dc15..ced076ba560e 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -478,6 +478,8 @@ static void raid1_end_write_request(struct bio *bio) if (!test_bit(Faulty, &rdev->flags)) set_bit(R1BIO_WriteError, &r1_bio->state); else { + /* Fail the request */ + set_bit(R1BIO_Degraded, &r1_bio->state); /* Finished with this branch */ r1_bio->bios[mirror] = NULL; to_put = bio; |