diff options
Diffstat (limited to 'drivers/md/dm-raid1.c')
| -rw-r--r-- | drivers/md/dm-raid1.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c index 699b5be68d31..678556b8ee4d 100644 --- a/drivers/md/dm-raid1.c +++ b/drivers/md/dm-raid1.c @@ -604,6 +604,15 @@ static void write_callback(unsigned long error, void *context) return; } + /* + * If the bio is discard, return an error, but do not + * degrade the array. + */ + if (bio->bi_rw & REQ_DISCARD) { + bio_endio(bio, -EOPNOTSUPP); + return; + } + for (i = 0; i < ms->nr_mirrors; i++) if (test_bit(i, &error)) fail_mirror(ms->mirror + i, DM_RAID1_WRITE_ERROR); |