Mikulas Patocka 6958c1c640 dm: use noio when sending kobject event ... kobject_uevent may allocate memory and it may be called while there are dm devices suspended. The allocation may recurse into a suspended device, causing a deadlock. We must set the noio flag when sending a uevent. The observed deadlock was reported here: https://www.redhat.com/archives/dm-devel/2020-March/msg00025.html Reported-by: Khazhismel Kumykov <khazhy@google.com> Reported-by: Tahsin Erdogan <tahsin@google.com> Reported-by: Gabriel Krisman Bertazi <krisman@collabora.com> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Mike Snitzer <snitzer@redhat.com>		2020-07-08 12:50:51 -04:00
..
bcache	bcache: pr_info() format clean up in bcache_device_init()	2020-06-14 16:47:56 -06:00
persistent-data	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
dm-bio-prison-v1.c	dm bio prison: replace spin_lock_irqsave with spin_lock_irq	2019-11-05 14:53:03 -05:00
dm-bio-prison-v1.h
dm-bio-prison-v2.c	dm bio prison v2: use true/false for bool variable	2020-01-07 12:07:08 -05:00
dm-bio-prison-v2.h
dm-bio-record.h	dm bio record: save/restore bi_end_io and bi_integrity	2020-03-03 10:02:46 -05:00
dm-bufio.c	- Largest change for this cycle is the DM zoned target's metadata	2020-06-05 15:45:03 -07:00
dm-builtin.c
dm-cache-background-tracker.c
dm-cache-background-tracker.h
dm-cache-block-types.h
dm-cache-metadata.c
dm-cache-metadata.h
dm-cache-policy-internal.h
dm-cache-policy-smq.c
dm-cache-policy.c
dm-cache-policy.h
dm-cache-target.c	dm: bump version of core and various targets	2020-03-03 11:10:21 -05:00
dm-clone-metadata.c	dm clone metadata: Fix return type of dm_clone_nr_of_hydrated_regions()	2020-03-27 14:42:51 -04:00
dm-clone-metadata.h	dm clone metadata: Fix return type of dm_clone_nr_of_hydrated_regions()	2020-03-27 14:42:51 -04:00
dm-clone-target.c	dm clone metadata: Fix return type of dm_clone_nr_of_hydrated_regions()	2020-03-27 14:42:51 -04:00
dm-core.h
dm-crypt.c	dm crypt: avoid truncating the logical block size	2020-06-05 14:59:59 -04:00
dm-delay.c
dm-dust.c	dm dust: change ret to r in dust_map_write	2020-01-07 11:43:36 -05:00
dm-ebs-target.c	dm ebs: use dm_bufio_forget_buffers	2020-06-05 14:59:42 -04:00
dm-era-target.c
dm-exception-store.c
dm-exception-store.h
dm-flakey.c	block: rework zone reporting	2019-11-12 19:12:07 -07:00
dm-historical-service-time.c	dm mpath: add Historical Service Time Path Selector	2020-05-15 10:29:36 -04:00
dm-init.c
dm-integrity.c	- Largest change for this cycle is the DM zoned target's metadata	2020-06-05 15:45:03 -07:00
dm-io.c
dm-ioctl.c	dm ioctl: use struct_size() helper in retrieve_deps()	2020-06-17 12:31:45 -04:00
dm-kcopyd.c
dm-linear.c	dm,dax: Add dax zero_page_range operation	2020-04-02 19:15:03 -07:00
dm-log-userspace-base.c
dm-log-userspace-transfer.c
dm-log-userspace-transfer.h
dm-log-writes.c	dm: replace zero-length array with flexible-array	2020-05-20 17:09:44 -04:00
dm-log.c
dm-mpath.c	dm mpath: add DM device name to Failing/Reinstating path log messages	2020-06-05 14:59:58 -04:00
dm-mpath.h
dm-path-selector.c
dm-path-selector.h	dm mpath: pass IO start time to path selector	2020-05-15 10:29:36 -04:00
dm-queue-length.c	dm mpath: pass IO start time to path selector	2020-05-15 10:29:36 -04:00
dm-raid.c	dm: replace zero-length array with flexible-array	2020-05-20 17:09:44 -04:00
dm-raid1.c	dm: replace zero-length array with flexible-array	2020-05-20 17:09:44 -04:00
dm-region-hash.c
dm-round-robin.c
dm-rq.c	dm: do not use waitqueue for request-based DM	2020-07-07 12:00:01 -04:00
dm-rq.h
dm-service-time.c	dm mpath: pass IO start time to path selector	2020-05-15 10:29:36 -04:00
dm-snap-persistent.c	block: fix an integer overflow in logical block size	2020-01-15 21:43:09 -07:00
dm-snap-transient.c
dm-snap.c	dm snapshot: use true/false for bool variable	2020-01-07 12:07:17 -05:00
dm-stats.c	dm: replace zero-length array with flexible-array	2020-05-20 17:09:44 -04:00
dm-stats.h
dm-stripe.c	dm: replace zero-length array with flexible-array	2020-05-20 17:09:44 -04:00
dm-switch.c	dm: replace zero-length array with flexible-array	2020-05-20 17:09:44 -04:00
dm-sysfs.c
dm-table.c	dm: remove the make_request_fn check in device_area_is_invalid	2020-04-25 09:45:43 -06:00
dm-target.c
dm-thin-metadata.c	dm thin metadata: fix lockdep complaint	2020-02-27 12:00:53 -05:00
dm-thin-metadata.h	dm thin metadata: Add support for a pre-commit callback	2019-12-05 17:05:24 -05:00
dm-thin.c	dm thin: change data device's flush_bio to be member of struct pool	2020-01-14 20:23:13 -05:00
dm-uevent.c
dm-uevent.h
dm-unstripe.c
dm-verity-fec.c	dm verity fec: fix hash block number in verity_fec_decode	2020-04-16 16:16:38 -04:00
dm-verity-fec.h
dm-verity-target.c	dm: bump version of core and various targets	2020-03-03 11:10:21 -05:00
dm-verity-verify-sig.c	dm verity: add root hash pkcs#7 signature verification	2019-08-23 10:13:14 -04:00
dm-verity-verify-sig.h	dm verity: add root hash pkcs#7 signature verification	2019-08-23 10:13:14 -04:00
dm-verity.h	dm verity: add root hash pkcs#7 signature verification	2019-08-23 10:13:14 -04:00
dm-writecache.c	dm writecache: reject asynchronous pmem devices	2020-07-08 11:06:57 -04:00
dm-zero.c
dm-zoned-metadata.c	dm zoned: Fix zone reclaim trigger	2020-07-08 12:21:53 -04:00
dm-zoned-reclaim.c	dm zoned: Fix zone reclaim trigger	2020-07-08 12:21:53 -04:00
dm-zoned-target.c	dm zoned: Fix zone reclaim trigger	2020-07-08 12:21:53 -04:00
dm-zoned.h	dm zoned: select reclaim zone based on device index	2020-06-05 14:59:53 -04:00
dm.c	dm: use noio when sending kobject event	2020-07-08 12:50:51 -04:00
dm.h	dm: make dm_table_find_target return NULL	2019-08-23 10:13:12 -04:00
Kconfig	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
Makefile	dm mpath: add Historical Service Time Path Selector	2020-05-15 10:29:36 -04:00
md-bitmap.c	md: remove __clear_page_buffers and use attach/detach_page_private	2020-06-02 10:59:07 -07:00
md-bitmap.h
md-cluster.c
md-cluster.h
md-faulty.c
md-linear.c	md: improve handling of bio with REQ_PREFLUSH in md_flush_request()	2019-10-24 15:22:40 -07:00
md-linear.h	md/raid1: Replace zero-length array with flexible-array	2020-05-13 12:02:23 -07:00
md-multipath.c	md: improve handling of bio with REQ_PREFLUSH in md_flush_request()	2019-10-24 15:22:40 -07:00
md-multipath.h
md.c	md: add a newline when printing parameter 'start_ro' by sysfs	2020-05-13 11:49:19 -07:00
md.h	md: use memalloc scope APIs in mddev_suspend()/mddev_resume()	2020-05-13 11:22:31 -07:00
raid1-10.c
raid1.c	md/raid1: release pending accounting for an I/O only after write-behind is also finished	2020-05-13 11:22:31 -07:00
raid1.h	md/raid1: Replace zero-length array with flexible-array	2020-05-13 12:02:23 -07:00
raid5-cache.c
raid5-log.h
raid5-ppl.c	block: remove the error_sector argument to blkdev_issue_flush	2020-05-22 08:45:46 -06:00
raid5.c	raid5: update code comment of scribble_alloc()	2020-05-13 11:22:31 -07:00
raid5.h	raid5: use bio_end_sector in r5_next_bio	2019-09-13 13:14:43 -07:00
raid10.c	md/raid10: prevent access of uninitialized resync_pages offset	2019-11-11 16:47:39 -08:00
raid10.h	md/raid1: Replace zero-length array with flexible-array	2020-05-13 12:02:23 -07:00
raid0.c	block: fix an integer overflow in logical block size	2020-01-15 21:43:09 -07:00
raid0.h	md/raid0: avoid RAID0 data corruption due to layout confusion.	2019-09-13 13:10:05 -07:00