Michael Lyle
86755b7a96
bcache: don't attach backing with duplicate UUID ...
This can happen e.g. during disk cloning.
This is an incomplete fix: it does not catch duplicate UUIDs earlier
when things are still unattached. It does not unregister the device.
Further changes to cope better with this are planned but conflict with
Coly's ongoing improvements to handling device errors. In the meantime,
one can manually stop the device after this has happened.
Attempts to attach a duplicate device result in:
[ 136.372404] loop: module loaded
[ 136.424461] bcache: register_bdev() registered backing device loop0
[ 136.424464] bcache: bch_cached_dev_attach() Tried to attach loop0 but duplicate UUID already attached
My test procedure is:
dd if=/dev/sdb1 of=imgfile bs=1024 count=262144
losetup -f imgfile
Signed-off-by: Michael Lyle <mlyle@lyle.org>
Reviewed-by: Tang Junhui <tang.junhui@zte.com.cn>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-03-05 14:43:07 -07:00
bcache: don't attach backing with duplicate UUID
2018-03-05 14:43:07 -07:00
dm btree: fix serious bug in btree_split_beneath()
2018-01-17 09:07:55 -05:00
dm bufio: eliminate unnecessary labels in dm_bufio_client_create()
2018-01-17 09:16:04 -05:00
dm: various cleanups to md->queue initialization code
2018-01-29 13:44:55 -05:00
- DM core fixes to ensure that bio submission follows a depth-first tree
2018-01-31 11:05:47 -08:00
dm: backfill missing calls to mutex_destroy()
2018-01-17 09:16:15 -05:00
dm flakey: check for null arg_name in parse_features()
2018-01-17 09:16:13 -05:00
dm integrity: don't store cipher request on the stack
2018-01-17 09:08:57 -05:00
vfs: do bulk POLL* -> EPOLL* replacement
2018-02-11 14:34:03 -08:00
dm: backfill missing calls to mutex_destroy()
2018-01-17 09:16:15 -05:00
dm log writes: fix max length used for kstrndup
2018-01-17 09:16:16 -05:00
- DM core fixes to ensure that bio submission follows a depth-first tree
2018-01-31 11:05:47 -08:00
dm mpath selector: more evenly distribute ties
2018-01-29 13:44:58 -05:00
- DM core fixes to ensure that bio submission follows a depth-first tree
2018-01-31 11:05:47 -08:00
for-linus-20180204
2018-02-04 11:16:35 -08:00
dm mpath selector: more evenly distribute ties
2018-01-29 13:44:58 -05:00
dm snapshot: use mutex instead of rw_semaphore
2018-01-17 09:16:14 -05:00
dm: backfill missing calls to mutex_destroy()
2018-01-17 09:16:15 -05:00
dm table: fix NVMe bio-based dm_table_determine_type() validation
2018-01-29 13:44:56 -05:00
dm thin metadata: THIN_MAX_CONCURRENT_LOCKS should be 6
2018-01-17 09:07:54 -05:00
dm thin: fix trailing semicolon in __remap_and_issue_shared_cell
2018-01-29 13:44:57 -05:00
dm unstripe: fix target length versus number of stripes size check
2018-01-29 13:44:58 -05:00
dm: backfill missing calls to mutex_destroy()
2018-01-17 09:16:15 -05:00
dm: backfill missing calls to mutex_destroy()
2018-01-17 09:16:15 -05:00
dm: correctly handle chained bios in dec_pending()
2018-02-16 10:46:35 -05:00
dm: move dm_table_destroy() to same header as dm_table_create()
2018-01-17 09:16:06 -05:00
dm: add unstriped target
2018-01-17 09:16:00 -05:00
dm: add unstriped target
2018-01-17 09:16:00 -05:00
md-multipath: Use seq_putc() in multipath_status()
2018-02-17 13:00:35 -08:00
md: fix a potential deadlock of raid5/raid10 reshape
2018-02-25 10:39:15 -08:00
md: fix md_write_start() deadlock w/o metadata devices
2018-02-18 10:11:59 -08:00
md/raid1: fix NULL pointer dereference
2018-02-25 10:44:39 -08:00
md: document lifetime of internal rdev pointer.
2018-02-18 10:22:27 -08:00
raid5-ppl: PPL support for disks with write-back cache enabled
2018-01-15 14:29:42 -08:00
raid5-ppl: fix handling flush requests
2018-02-21 09:40:40 -08:00
raid5-ppl: fix handling flush requests
2018-02-21 09:40:40 -08:00
md: fix a potential deadlock of raid5/raid10 reshape
2018-02-25 10:39:15 -08:00
md: document lifetime of internal rdev pointer.
2018-02-18 10:22:27 -08:00
md: fix a potential deadlock of raid5/raid10 reshape
2018-02-25 10:39:15 -08:00
md: document lifetime of internal rdev pointer.
2018-02-18 10:22:27 -08:00
86755b7a96