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-v1.h
dm-bio-prison-v2.c
dm-bio-prison-v2.h
dm-bio-record.h
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-clone-metadata.c
dm-clone-metadata.h
dm-clone-target.c
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-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
dm-historical-service-time.c
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-log-userspace-base.c
dm-log-userspace-transfer.c
dm-log-userspace-transfer.h
dm-log-writes.c
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-queue-length.c
dm-raid.c
dm-raid1.c
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-snap-persistent.c
dm-snap-transient.c
dm-snap.c
dm-stats.c
dm-stats.h
dm-stripe.c
dm-switch.c
dm-sysfs.c
dm-table.c
dm-target.c
dm-thin-metadata.c
dm-thin-metadata.h
dm-thin.c
dm-uevent.c
dm-uevent.h
dm-unstripe.c
dm-verity-fec.c
dm-verity-fec.h
dm-verity-target.c
dm-verity-verify-sig.c
dm-verity-verify-sig.h
dm-verity.h
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
Kconfig	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
Makefile
md-bitmap.c
md-bitmap.h
md-cluster.c
md-cluster.h
md-faulty.c
md-linear.c
md-linear.h
md-multipath.c
md-multipath.h
md.c
md.h
raid1-10.c
raid1.c
raid1.h
raid5-cache.c
raid5-log.h
raid5-ppl.c
raid5.c
raid5.h
raid10.c
raid10.h
raid0.c
raid0.h