diff options
| -rw-r--r-- | drivers/md/dm-integrity.c | 12 | ||||
| -rw-r--r-- | drivers/md/dm-io.c | 4 | ||||
| -rw-r--r-- | drivers/md/dm-raid1.c | 21 |
3 files changed, 31 insertions, 6 deletions
diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c index 7910bfe50da4..93b181088168 100644 --- a/drivers/md/dm-integrity.c +++ b/drivers/md/dm-integrity.c @@ -1105,10 +1105,13 @@ static void schedule_autocommit(struct dm_integrity_c *ic) static void submit_flush_bio(struct dm_integrity_c *ic, struct dm_integrity_io *dio) { struct bio *bio; - spin_lock_irq(&ic->endio_wait.lock); + unsigned long flags; + + spin_lock_irqsave(&ic->endio_wait.lock, flags); bio = dm_bio_from_per_bio_data(dio, sizeof(struct dm_integrity_io)); bio_list_add(&ic->flush_bio_list, bio); - spin_unlock_irq(&ic->endio_wait.lock); + spin_unlock_irqrestore(&ic->endio_wait.lock, flags); + queue_work(ic->commit_wq, &ic->commit_work); } @@ -3040,6 +3043,11 @@ static int dm_integrity_ctr(struct dm_target *ti, unsigned argc, char **argv) ti->error = "The device is too small"; goto bad; } + if (ti->len > ic->provided_data_sectors) { + r = -EINVAL; + ti->error = "Not enough provided sectors for requested mapping size"; + goto bad; + } if (!buffer_sectors) buffer_sectors = 1; diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c index 3702e502466d..8d5ca30f6551 100644 --- a/drivers/md/dm-io.c +++ b/drivers/md/dm-io.c @@ -317,8 +317,8 @@ static void do_region(int op, int op_flags, unsigned region, else if (op == REQ_OP_WRITE_SAME) special_cmd_max_sectors = q->limits.max_write_same_sectors; if ((op == REQ_OP_DISCARD || op == REQ_OP_WRITE_ZEROES || - op == REQ_OP_WRITE_SAME) && - special_cmd_max_sectors == 0) { + op == REQ_OP_WRITE_SAME) && special_cmd_max_sectors == 0) { + atomic_inc(&io->count); dec_count(io, region, -EOPNOTSUPP); return; } diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c index e61c45047c25..4da8858856fb 100644 --- a/drivers/md/dm-raid1.c +++ b/drivers/md/dm-raid1.c @@ -145,6 +145,7 @@ static void dispatch_bios(void *context, struct bio_list *bio_list) struct dm_raid1_bio_record { struct mirror *m; + /* if details->bi_bdev == NULL, details were not saved */ struct dm_bio_details details; region_t write_region; }; @@ -1198,6 +1199,8 @@ static int mirror_map(struct dm_target *ti, struct bio *bio) struct dm_raid1_bio_record *bio_record = dm_per_bio_data(bio, sizeof(struct dm_raid1_bio_record)); + bio_record->details.bi_bdev = NULL; + if (rw == WRITE) { /* Save region for mirror_end_io() handler */ bio_record->write_region = dm_rh_bio_to_region(ms->rh, bio); @@ -1256,12 +1259,22 @@ static int mirror_end_io(struct dm_target *ti, struct bio *bio, int error) } if (error == -EOPNOTSUPP) - return error; + goto out; if ((error == -EWOULDBLOCK) && (bio->bi_opf & REQ_RAHEAD)) - return error; + goto out; if (unlikely(error)) { + if (!bio_record->details.bi_bdev) { + /* + * There wasn't enough memory to record necessary + * information for a retry or there was no other + * mirror in-sync. + */ + DMERR_LIMIT("Mirror read failed."); + return -EIO; + } + m = bio_record->m; DMERR("Mirror read failed from %s. Trying alternative device.", @@ -1277,6 +1290,7 @@ static int mirror_end_io(struct dm_target *ti, struct bio *bio, int error) bd = &bio_record->details; dm_bio_restore(bd, bio); + bio_record->details.bi_bdev = NULL; bio->bi_error = 0; queue_bio(ms, bio, rw); @@ -1285,6 +1299,9 @@ static int mirror_end_io(struct dm_target *ti, struct bio *bio, int error) DMERR("All replicated volumes dead, failing I/O"); } +out: + bio_record->details.bi_bdev = NULL; + return error; } |