mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-12 13:55:32 +00:00
Code Issues Releases Wiki Activity
linux-stable/drivers/md
History
Mike Snitzer 9571f829f3 dm table: fix dm_table_supports_poll to return false if no data devices 
It was reported that the "generic/250" test in xfstests (which uses
the dm-error target) demonstrates a regression where the kernel
crashes in bioset_exit().

Since commit cfc97abcbe ("dm: conditionally enable
BIOSET_PERCPU_CACHE for dm_io bioset") the bioset_init() for the dm_io
bioset will setup the bioset's per-cpu alloc cache if all devices have
QUEUE_FLAG_POLL set.

But there was an bug where a target that doesn't have any data devices
(and that doesn't even set the .iterate_devices dm target callback)
will incorrectly return true from dm_table_supports_poll().

Fix this by updating dm_table_supports_poll() to follow dm-table.c's
well-worn pattern for testing that _all_ targets in a DM table do in
fact have underlying devices that set QUEUE_FLAG_POLL.

NOTE: An additional block fix is still needed so that
bio_alloc_cache_destroy() clears the bioset's ->cache member.
Otherwise, a DM device's table reload that transitions the DM device's
bioset from using a per-cpu alloc cache to _not_ using one will result
in bioset_exit() crashing in bio_alloc_cache_destroy() because dm's
dm_io bioset ("io_bs") was left with a stale ->cache member.

Fixes: cfc97abcbe ("dm: conditionally enable BIOSET_PERCPU_CACHE for dm_io bioset")
Reported-by: Matthew Wilcox <willy@infradead.org>
Reported-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2022-05-31 14:44:17 -04:00
..
bcache block: decouple REQ_OP_SECURE_ERASE from REQ_OP_DISCARD 2022-04-17 19:49:59 -06:00
persistent-data dm space map common: add bounds check to sm_ll_lookup_bitmap() 2022-01-04 13:58:19 -05:00
dm-audit.c dm: introduce audit event module for device mapper 2021-10-27 16:53:47 -04:00
dm-audit.h dm: introduce audit event module for device mapper 2021-10-27 16:53:47 -04:00
dm-bio-prison-v1.c
dm-bio-prison-v1.h
dm-bio-prison-v2.c
dm-bio-prison-v2.h
dm-bio-record.h block: move integrity handling out of <linux/blkdev.h> 2021-10-18 06:17:02 -06:00
dm-bufio.c block: turn bio_kmalloc into a simple kmalloc wrapper 2022-04-17 19:30:41 -06:00
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: remove unnecessary variable in __dump_mapping 2022-05-09 15:40:10 -04:00
dm-cache-metadata.h
dm-cache-policy-internal.h
dm-cache-policy-smq.c dm cache policy smq: make static read-only array table const 2022-02-22 10:35:53 -05:00
dm-cache-policy.c
dm-cache-policy.h
dm-cache-target.c block: remove QUEUE_FLAG_DISCARD 2022-04-17 19:49:59 -06:00
dm-clone-metadata.c dm clone metadata: remove unused function 2021-04-19 13:20:31 -04:00
dm-clone-metadata.h
dm-clone-target.c block: remove QUEUE_FLAG_DISCARD 2022-04-17 19:49:59 -06:00
dm-core.h dm: simplify bio-based IO accounting further 2022-05-05 17:31:36 -04:00
dm-crypt.c dm crypt: make printing of the key constant-time 2022-05-09 12:34:03 -04:00
dm-delay.c dm: simplify basic targets 2022-05-05 17:31:35 -04:00
dm-dust.c dm: use bdev_nr_sectors and bdev_nr_bytes instead of open coding them 2021-10-18 14:43:22 -06:00
dm-ebs-target.c scsi: dm: Remove WRITE_SAME support 2022-02-22 21:11:08 -05:00
dm-era-target.c dm: use bdev_nr_sectors and bdev_nr_bytes instead of open coding them 2021-10-18 14:43:22 -06:00
dm-exception-store.c
dm-exception-store.h dm: use bdev_nr_sectors and bdev_nr_bytes instead of open coding them 2021-10-18 14:43:22 -06:00
dm-flakey.c dm: simplify basic targets 2022-05-05 17:31:35 -04:00
dm-ima.c dm ima: fix wrong length calculation for no_data string 2022-02-22 10:42:41 -05:00
dm-ima.h dm ima: add version info to dm related events in ima log 2021-08-20 15:59:47 -04:00
dm-init.c
dm-integrity.c dm integrity: fix error code in dm_integrity_ctr() 2022-05-09 12:14:00 -04:00
dm-io-tracker.h dm writecache: make writeback pause configurable 2021-06-28 16:30:13 -04:00
dm-io.c block: add a bdev_max_discard_sectors helper 2022-04-17 19:49:59 -06:00
dm-ioctl.c dm ioctl: log an error if the ioctl structure is corrupted 2022-04-01 10:29:43 -04:00
dm-kcopyd.c dm writecache: have ssd writeback wait if the kcopyd workqueue is busy 2021-06-15 15:42:03 -04:00
dm-linear.c dm: simplify basic targets 2022-05-05 17:31:35 -04:00
dm-log-userspace-base.c dm: update target status functions to support IMA measurement 2021-08-10 13:34:23 -04:00
dm-log-userspace-transfer.c
dm-log-userspace-transfer.h
dm-log-writes.c block: remove QUEUE_FLAG_DISCARD 2022-04-17 19:49:59 -06:00
dm-log.c dm: use bdev_nr_sectors and bdev_nr_bytes instead of open coding them 2021-10-18 14:43:22 -06:00
dm-mpath.c dm mpath: provide high-resolution timer to HST for bio-based 2022-05-09 15:39:23 -04:00
dm-mpath.h
dm-path-selector.c
dm-path-selector.h dm mpath: provide high-resolution timer to HST for bio-based 2022-05-09 15:39:23 -04:00
dm-ps-historical-service-time.c dm mpath: provide high-resolution timer to HST for bio-based 2022-05-09 15:39:23 -04:00
dm-ps-io-affinity.c dm: update target status functions to support IMA measurement 2021-08-10 13:34:23 -04:00
dm-ps-queue-length.c dm: update target status functions to support IMA measurement 2021-08-10 13:34:23 -04:00
dm-ps-round-robin.c dm: update target status functions to support IMA measurement 2021-08-10 13:34:23 -04:00
dm-ps-service-time.c dm: update target status functions to support IMA measurement 2021-08-10 13:34:23 -04:00
dm-raid.c block: remove QUEUE_FLAG_DISCARD 2022-04-17 19:49:59 -06:00
dm-raid1.c dm: update target status functions to support IMA measurement 2021-08-10 13:34:23 -04:00
dm-region-hash.c
dm-rq.c SCSI misc on 20220324 2022-03-24 19:37:53 -07:00
dm-rq.h
dm-snap-persistent.c dm: update target status functions to support IMA measurement 2021-08-10 13:34:23 -04:00
dm-snap-transient.c dm: update target status functions to support IMA measurement 2021-08-10 13:34:23 -04:00
dm-snap.c dm-snap: use blkdev_issue_flush instead of open coding it 2022-02-02 07:49:59 -07:00
dm-stats.c dm stats: add cond_resched when looping over entries 2022-05-09 12:11:07 -04:00
dm-stats.h dm stats: fix too short end duration_ns when using precise_timestamps 2022-02-21 15:35:39 -05:00
dm-stripe.c scsi: dm: Remove WRITE_SAME support 2022-02-22 21:11:08 -05:00
dm-switch.c dm: use bdev_nr_sectors and bdev_nr_bytes instead of open coding them 2021-10-18 14:43:22 -06:00
dm-sysfs.c dm sysfs: use default_groups in kobj_type 2022-01-06 09:48:55 -05:00
dm-table.c dm table: fix dm_table_supports_poll to return false if no data devices 2022-05-31 14:44:17 -04:00
dm-target.c
dm-thin-metadata.c dm thin metadata: remove unused dm_thin_remove_block and __remove 2022-02-22 13:55:50 -05:00
dm-thin-metadata.h dm thin metadata: remove unused dm_thin_remove_block and __remove 2022-02-22 13:55:50 -05:00
dm-thin.c block: decouple REQ_OP_SECURE_ERASE from REQ_OP_DISCARD 2022-04-17 19:49:59 -06:00
dm-uevent.c
dm-uevent.h
dm-unstripe.c dm: update target status functions to support IMA measurement 2021-08-10 13:34:23 -04:00
dm-verity-fec.c dm verity fec: fix misaligned RS roots IO 2021-04-14 14:28:29 -04:00
dm-verity-fec.h dm verity fec: fix misaligned RS roots IO 2021-04-14 14:28:29 -04:00
dm-verity-target.c - Add DM core support for emitting audit events through the audit 2021-11-09 11:02:04 -08:00
dm-verity-verify-sig.c dm verity: fix require_signatures module_param permissions 2021-05-25 16:14:05 -04:00
dm-verity-verify-sig.h
dm-verity.h
dm-writecache.c block: pass a block_device and opf to bio_alloc_bioset 2022-02-02 07:49:59 -07:00
dm-zero.c
dm-zone.c dm: don't grab target io reference in dm_zone_map_bio 2022-05-05 17:31:36 -04:00
dm-zoned-metadata.c dm-zoned: remove the ->name field in struct dmz_dev 2022-03-02 12:15:35 -05:00
dm-zoned-reclaim.c dm kcopyd: avoid useless atomic operations 2021-06-04 12:07:24 -04:00
dm-zoned-target.c dm-zoned: remove the ->name field in struct dmz_dev 2022-03-02 12:15:35 -05:00
dm-zoned.h dm-zoned: remove the ->name field in struct dmz_dev 2022-03-02 12:15:35 -05:00
dm.c dm: pass NULL bdev to bio_alloc_clone 2022-05-11 13:58:52 -04:00
dm.h dm: conditionally enable BIOSET_PERCPU_CACHE for dm_io bioset 2022-05-05 17:31:33 -04:00
Kconfig blk-mq: make the blk-mq stacking code optional 2022-02-16 19:39:09 -07:00
Makefile dm: introduce audit event module for device mapper 2021-10-27 16:53:47 -04:00
md-autodetect.c
md-bitmap.c md/bitmap: don't set max_write_behind if there is no write mostly device 2021-11-02 11:41:44 -07:00
md-bitmap.h
md-cluster.c md: fix spelling of "its" 2022-01-06 08:37:03 -08:00
md-cluster.h
md-faulty.c block: pass a block_device to bio_clone_fast 2022-02-04 07:43:18 -07:00
md-linear.c block: remove QUEUE_FLAG_DISCARD 2022-04-17 19:49:59 -06:00
md-linear.h
md-multipath.c SCSI misc on 20220324 2022-03-24 19:37:53 -07:00
md-multipath.h
md.c block: decouple REQ_OP_SECURE_ERASE from REQ_OP_DISCARD 2022-04-17 19:49:59 -06:00
md.h scsi: md: Remove WRITE_SAME support 2022-02-22 21:11:08 -05:00
raid0.c block: remove QUEUE_FLAG_DISCARD 2022-04-17 19:49:59 -06:00
raid0.h
raid1-10.c md: raid1/raid10: drop pending_cnt 2022-03-08 15:16:54 -08:00
raid1.c block: remove QUEUE_FLAG_DISCARD 2022-04-17 19:49:59 -06:00
raid1.h md: raid1/raid10: drop pending_cnt 2022-03-08 15:16:54 -08:00
raid5-cache.c block: decouple REQ_OP_SECURE_ERASE from REQ_OP_DISCARD 2022-04-17 19:49:59 -06:00
raid5-log.h
raid5-ppl.c for-5.18/write-streams-2022-03-18 2022-03-26 11:51:46 -07:00
raid5.c block: remove QUEUE_FLAG_DISCARD 2022-04-17 19:49:59 -06:00
raid5.h md/raid5: play nice with PREEMPT_RT 2022-01-06 08:37:02 -08:00
raid10.c block: remove QUEUE_FLAG_DISCARD 2022-04-17 19:49:59 -06:00
raid10.h md: raid1/raid10: drop pending_cnt 2022-03-08 15:16:54 -08:00