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authorLinus Torvalds <torvalds@linux-foundation.org>2024-09-27 09:12:51 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2024-09-27 09:12:51 -0700
commite477dba5442c0af7acb9e8bbbbde1108a37ed39c (patch)
tree897796af2869def2ec92e7b99716bdff666a1713 /drivers/md/dm.c
parentb6c49fca9f810c7279ea59937dd3a01a2906d11a (diff)
parent579b2ba40ece57f3f9150f59dfe327e60a5445b5 (diff)
Merge tag 'for-6.12/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper updates from Mikulas Patocka: - Misc VDO fixes - Remove unused declarations dm_get_rq_mapinfo() and dm_zone_map_bio() - Dm-delay: Improve kernel documentation - Dm-crypt: Allow to specify the integrity key size as an option - Dm-bufio: Remove pointless NULL check - Small code cleanups: Use ERR_CAST; remove unlikely() around IS_ERR; use __assign_bit - Dm-integrity: Fix gcc 5 warning; convert comma to semicolon; fix smatch warning - Dm-integrity: Support recalculation in the 'I' mode - Revert "dm: requeue IO if mapping table not yet available" - Dm-crypt: Small refactoring to make the code more readable - Dm-cache: Remove pointless error check - Dm: Fix spelling errors - Dm-verity: Restart or panic on an I/O error if restart or panic was requested - Dm-verity: Fallback to platform keyring also if key in trusted keyring is rejected * tag 'for-6.12/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (26 commits) dm verity: fallback to platform keyring also if key in trusted keyring is rejected dm-verity: restart or panic on an I/O error dm: fix spelling errors dm-cache: remove pointless error check dm vdo: handle unaligned discards correctly dm vdo indexer: Convert comma to semicolon dm-crypt: Use common error handling code in crypt_set_keyring_key() dm-crypt: Use up_read() together with key_put() only once in crypt_set_keyring_key() Revert "dm: requeue IO if mapping table not yet available" dm-integrity: check mac_size against HASH_MAX_DIGESTSIZE in sb_mac() dm-integrity: support recalculation in the 'I' mode dm integrity: Convert comma to semicolon dm integrity: fix gcc 5 warning dm: Make use of __assign_bit() API dm integrity: Remove extra unlikely helper dm: Convert to use ERR_CAST() dm bufio: Remove NULL check of list_entry() dm-crypt: Allow to specify the integrity key size as option dm: Remove unused declaration and empty definition "dm_zone_map_bio" dm delay: enhance kernel documentation ...
Diffstat (limited to 'drivers/md/dm.c')
-rw-r--r--drivers/md/dm.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 87bb90303435..ff4a6b570b76 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -2030,10 +2030,15 @@ static void dm_submit_bio(struct bio *bio)
struct dm_table *map;
map = dm_get_live_table(md, &srcu_idx);
+ if (unlikely(!map)) {
+ DMERR_LIMIT("%s: mapping table unavailable, erroring io",
+ dm_device_name(md));
+ bio_io_error(bio);
+ goto out;
+ }
- /* If suspended, or map not yet available, queue this IO for later */
- if (unlikely(test_bit(DMF_BLOCK_IO_FOR_SUSPEND, &md->flags)) ||
- unlikely(!map)) {
+ /* If suspended, queue this IO for later */
+ if (unlikely(test_bit(DMF_BLOCK_IO_FOR_SUSPEND, &md->flags))) {
if (bio->bi_opf & REQ_NOWAIT)
bio_wouldblock_error(bio);
else if (bio->bi_opf & REQ_RAHEAD)