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linux/drivers/md
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Mike Snitzer 519049afea dm: use blkdev_get rather than bdgrab when issuing pass-through ioctl 
Otherwise an underlying device's teardown (e.g. SCSI) may race with the
DM ioctl or persistent reservation and result in dereferencing driver
memory that gets freed when the underlying device's final blkdev_put()
occurs.

bdgrab() only increases the refcount for the block_device's inode to
ensure the block_device struct itself will not be freed, but does not
guarantee the block_device will remain associated with the gendisk or
its storage.

Cc: stable@vger.kernel.org # 4.8+
Reported-by: David Jeffery <djeffery@redhat.com>
Suggested-by: David Jeffery <djeffery@redhat.com>
Reviewed-by: Ben Marzinski <bmarzins@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2018-03-06 20:23:57 -05:00
..
bcache
bcache: fix kcrashes with fio in RAID5 backend dev
2018-02-27 10:54:28 -07:00
persistent-data
dm btree: fix serious bug in btree_split_beneath()
2018-01-17 09:07:55 -05:00
dm-bio-prison-v1.c
dm bio prison: use rb_entry() rather than container_of()
2017-06-19 11:03:50 -04:00
dm-bio-prison-v1.h
block: switch bios to blk_status_t
2017-06-09 09:27:32 -06:00
dm-bio-prison-v2.c
dm bio prison: use rb_entry() rather than container_of()
2017-06-19 11:03:50 -04:00
dm-bio-prison-v2.h
dm bio prison v2: new interface for the bio prison
2017-03-07 11:30:16 -05:00
dm-bio-record.h
block: replace bi_bdev with a gendisk pointer and partitions index
2017-08-23 12:49:55 -06:00
dm-bufio.c
dm bufio: avoid false-positive Wmaybe-uninitialized warning
2018-03-06 20:23:57 -05:00
dm-bufio.h
dm integrity: optimize writing dm-bufio buffers that are partially changed
2017-08-28 11:47:17 -04:00
dm-builtin.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
dm-cache-background-tracker.c
dm cache background tracker: limit amount of background work that may be issued at once
2017-11-10 15:45:03 -05:00
dm-cache-background-tracker.h
dm cache: significant rework to leverage dm-bio-prison-v2
2017-03-07 13:28:31 -05:00
dm-cache-block-types.h
linux: drop __bitwise__ everywhere
2016-12-16 00:13:41 +02:00
dm-cache-metadata.c
dm cache: convert dm_cache_metadata.ref_count from atomic_t to refcount_t
2017-10-24 15:09:51 -04:00
dm-cache-metadata.h
dm cache: significant rework to leverage dm-bio-prison-v2
2017-03-07 13:28:31 -05:00
dm-cache-policy-internal.h
dm cache: significant rework to leverage dm-bio-prison-v2
2017-03-07 13:28:31 -05:00
dm-cache-policy-smq.c
dm cache policy smq: allocate cache blocks in order
2017-11-10 15:45:05 -05:00
dm-cache-policy.c
…
dm-cache-policy.h
dm cache: significant rework to leverage dm-bio-prison-v2
2017-03-07 13:28:31 -05:00
dm-cache-target.c
dm: fix various targets to dm_register_target after module __init resources created
2017-12-04 10:23:10 -05:00
dm-core.h
dm: various cleanups to md->queue initialization code
2018-01-29 13:44:55 -05:00
dm-crypt.c
- DM core fixes to ensure that bio submission follows a depth-first tree
2018-01-31 11:05:47 -08:00
dm-delay.c
dm: backfill missing calls to mutex_destroy()
2018-01-17 09:16:15 -05:00
dm-era-target.c
dm: do not set 'discards_supported' in targets that do not need it
2017-11-16 16:33:54 -05:00
dm-exception-store.c
…
dm-exception-store.h
dm snapshot: fix hung bios when copy error occurs
2016-01-08 20:03:05 -05:00
dm-flakey.c
dm flakey: check for null arg_name in parse_features()
2018-01-17 09:16:13 -05:00
dm-integrity.c
dm integrity: don't store cipher request on the stack
2018-01-17 09:08:57 -05:00
dm-io.c
dm io: remove BIOSET_NEED_RESCUER flag from bios bioset
2017-12-13 12:15:56 -05:00
dm-ioctl.c
vfs: do bulk POLL* -> EPOLL* replacement
2018-02-11 14:34:03 -08:00
dm-kcopyd.c
dm: backfill missing calls to mutex_destroy()
2018-01-17 09:16:15 -05:00
dm-linear.c
- Some request-based DM core and DM multipath fixes and cleanups
2017-09-14 13:43:16 -07:00
dm-log-userspace-base.c
…
dm-log-userspace-transfer.c
…
dm-log-userspace-transfer.h
…
dm-log-writes.c
dm log writes: fix max length used for kstrndup
2018-01-17 09:16:16 -05:00
dm-log.c
block,fs: use REQ_* flags directly
2016-11-01 09:43:26 -06:00
dm-mpath.c
- DM core fixes to ensure that bio submission follows a depth-first tree
2018-01-31 11:05:47 -08:00
dm-mpath.h
…
dm-path-selector.c
…
dm-path-selector.h
dm path selector: remove 'repeat_count' return from .select_path hook
2016-02-22 22:34:42 -05:00
dm-queue-length.c
dm mpath selector: more evenly distribute ties
2018-01-29 13:44:58 -05:00
dm-raid1.c
md: Convert timers to use timer_setup()
2017-11-14 20:11:57 -07:00
dm-raid.c
- DM core fixes to ensure that bio submission follows a depth-first tree
2018-01-31 11:05:47 -08:00
dm-region-hash.c
block: rename bio bi_rw to bi_opf
2016-08-07 14:41:02 -06:00
dm-round-robin.c
dm round robin: revert "use percpu 'repeat_count' and 'current_path'"
2017-02-17 00:54:09 -05:00
dm-rq.c
for-linus-20180204
2018-02-04 11:16:35 -08:00
dm-rq.h
dm rq: do not update rq partially in each ending bio
2017-08-28 10:23:28 -04:00
dm-service-time.c
dm mpath selector: more evenly distribute ties
2018-01-29 13:44:58 -05:00
dm-snap-persistent.c
dm: make flush bios explicitly sync
2017-05-31 10:50:23 -04:00
dm-snap-transient.c
dm snapshot: fix hung bios when copy error occurs
2016-01-08 20:03:05 -05:00
dm-snap.c
dm snapshot: use mutex instead of rw_semaphore
2018-01-17 09:16:14 -05:00
dm-stats.c
dm: backfill missing calls to mutex_destroy()
2018-01-17 09:16:15 -05:00
dm-stats.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
dm-stripe.c
- Some request-based DM core and DM multipath fixes and cleanups
2017-09-14 13:43:16 -07:00
dm-switch.c
locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE()
2017-10-25 11:01:08 +02:00
dm-sysfs.c
dm: move request-based code out to dm-rq.[hc]
2016-06-10 15:15:44 -04:00
dm-table.c
dm table: fix NVMe bio-based dm_table_determine_type() validation
2018-01-29 13:44:56 -05:00
dm-target.c
dm: don't return errnos from ->map
2017-06-09 09:27:32 -06:00
dm-thin-metadata.c
dm thin metadata: THIN_MAX_CONCURRENT_LOCKS should be 6
2018-01-17 09:07:54 -05:00
dm-thin-metadata.h
dm thin: fix a race condition between discarding and provisioning a block
2016-07-20 12:43:35 -04:00
dm-thin.c
dm thin: fix trailing semicolon in __remap_and_issue_shared_cell
2018-01-29 13:44:57 -05:00
dm-uevent.c
…
dm-uevent.h
…
dm-unstripe.c
dm unstripe: fix target length versus number of stripes size check
2018-01-29 13:44:58 -05:00
dm-verity-fec.c
dm verity fec: fix GFP flags used with mempool_alloc()
2017-07-26 15:55:44 -04:00
dm-verity-fec.h
dm verity fec: limit error correction recursion
2017-03-16 09:37:31 -04:00
dm-verity-target.c
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2017-11-14 10:52:09 -08:00
dm-verity.h
dm: move dm-verity to generic async completion
2017-11-03 22:11:20 +08:00
dm-zero.c
dm: don't return errnos from ->map
2017-06-09 09:27:32 -06:00
dm-zoned-metadata.c
dm: backfill missing calls to mutex_destroy()
2018-01-17 09:16:15 -05:00
dm-zoned-reclaim.c
dm zoned: use GFP_NOIO in I/O path
2017-07-26 15:55:43 -04:00
dm-zoned-target.c
dm: backfill missing calls to mutex_destroy()
2018-01-17 09:16:15 -05:00
dm-zoned.h
dm zoned: drive-managed zoned block device target
2017-06-19 11:05:20 -04:00
dm.c
dm: use blkdev_get rather than bdgrab when issuing pass-through ioctl
2018-03-06 20:23:57 -05:00
dm.h
dm: move dm_table_destroy() to same header as dm_table_create()
2018-01-17 09:16:06 -05:00
Kconfig
dm: add unstriped target
2018-01-17 09:16:00 -05:00
Makefile
dm: add unstriped target
2018-01-17 09:16:00 -05:00
md-bitmap.c
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md
2017-11-14 16:07:26 -08:00
md-bitmap.h
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md
2017-11-14 16:07:26 -08:00
md-cluster.c
md-cluster: update document for raid10
2017-11-01 21:32:25 -07:00
md-cluster.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
md-faulty.c
md: rename some drivers/md/ files to have an "md-" prefix
2017-10-16 19:06:36 -07:00
md-linear.c
md: rename some drivers/md/ files to have an "md-" prefix
2017-10-16 19:06:36 -07:00
md-linear.h
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md
2017-11-14 16:07:26 -08:00
md-multipath.c
md-multipath: Use seq_putc() in multipath_status()
2018-02-17 13:00:35 -08:00
md-multipath.h
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md
2017-11-14 16:07:26 -08:00
md.c
md: fix a potential deadlock of raid5/raid10 reshape
2018-02-25 10:39:15 -08:00
md.h
md: fix md_write_start() deadlock w/o metadata devices
2018-02-18 10:11:59 -08:00
raid0.c
md: remove special meaning of ->quiesce(.., 2)
2017-11-01 21:32:20 -07:00
raid0.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
raid1-10.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
raid1.c
md/raid1: fix NULL pointer dereference
2018-02-25 10:44:39 -08:00
raid1.h
md: document lifetime of internal rdev pointer.
2018-02-18 10:22:27 -08:00
raid5-cache.c
raid5-ppl: PPL support for disks with write-back cache enabled
2018-01-15 14:29:42 -08:00
raid5-log.h
raid5-ppl: fix handling flush requests
2018-02-21 09:40:40 -08:00
raid5-ppl.c
raid5-ppl: fix handling flush requests
2018-02-21 09:40:40 -08:00
raid5.c
md: fix a potential deadlock of raid5/raid10 reshape
2018-02-25 10:39:15 -08:00
raid5.h
md: document lifetime of internal rdev pointer.
2018-02-18 10:22:27 -08:00
raid10.c
md: fix a potential deadlock of raid5/raid10 reshape
2018-02-25 10:39:15 -08:00
raid10.h
md: document lifetime of internal rdev pointer.
2018-02-18 10:22:27 -08:00