Mike Snitzer da5dadb4f1 dm: fix dropped return code from dm_get_bdev_for_ioctl ...

dm_get_bdev_for_ioctl()'s return of 0 or 1 must be the result from
prepare_ioctl (1 means the ioctl was issued to a partition, 0 means it
wasn't).  Unfortunately commit 519049afea ("dm: use blkdev_get rather
than bdgrab when issuing pass-through ioctl") reused the variable 'r'
to store the return from blkdev_get() that follows prepare_ioctl()
-- whereby dropping prepare_ioctl()'s result on the floor.

This can lead to an ioctl or persistent reservation being issued to a
partition going unnoticed, which implies the extra permission check for
CAP_SYS_RAWIO is skipped.

Fix this by using a different variable to store blkdev_get()'s return.

Fixes: 519049afea ("dm: use blkdev_get rather than bdgrab when issuing pass-through ioctl")
Reported-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

2018-03-29 23:31:32 -04:00

..

bcache

bcache: don't attach backing with duplicate UUID

2018-03-05 14:43:07 -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: add policy name to status output

2014-01-16 13:44:11 -05:00

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

- Revert a dm-multipath change that caused a regression for unprivledged

2015-11-04 21:19:53 -08:00

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: drop NULL test before kmem_cache_destroy() and mempool_destroy()

2015-10-31 19:06:00 -04:00

dm-log-userspace-transfer.c

dm log userspace transfer: match wait_for_completion_timeout return type

2015-04-15 12:10:20 -04:00

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 mpath: fix support for loading scsi_dh modules during table load

2018-03-29 17:00:44 -04:00

dm-mpath.h

…

dm-path-selector.c

md: Add module.h to all files using it implicitly

2011-10-31 19:31:18 -04:00

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 raid: fix incorrect sync_ratio when degraded

2018-03-06 20:23:57 -05:00

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: allow upgrade from bio-based to specialized bio-based variant

2018-03-06 20:23:58 -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

md: Add in export.h for files using EXPORT_SYMBOL

2011-10-31 19:31:19 -04:00

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: fix dropped return code from dm_get_bdev_for_ioctl

2018-03-29 23:31:32 -04:00

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