NeilBrown 5cca175b6c blk: Ensure users for current->bio_list can see the full list. ... commit f5fe1b51905df7cfe4fdfd85c5fb7bc5b71a094f upstream. Commit 79bd99596b73 ("blk: improve order of bio handling in generic_make_request()") changed current->bio_list so that it did not contain *all* of the queued bios, but only those submitted by the currently running make_request_fn. There are two places which walk the list and requeue selected bios, and others that check if the list is empty. These are no longer correct. So redefine current->bio_list to point to an array of two lists, which contain all queued bios, and adjust various code to test or walk both lists. Signed-off-by: NeilBrown <neilb@suse.com> Fixes: 79bd99596b73 ("blk: improve order of bio handling in generic_make_request()") Signed-off-by: Jens Axboe <axboe@fb.com> [jwang: backport to 4.4] Signed-off-by: Jack Wang <jinpu.wang@profitbricks.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [bwh: Restore changes in device-mapper from upstream version] Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>		2017-04-08 09:53:32 +02:00
..
bcache	bcache: Make gc wakeup sane, remove set_task_state()	2017-02-23 17:43:10 +01:00
persistent-data	dm space map metadata: fix 'struct sm_metadata' leak on failed create	2017-01-06 11:16:15 +01:00
bitmap.c	md-cluster: Use a small window for resync	2015-10-12 01:32:05 -05:00
bitmap.h	md-cluster: Use a small window for resync	2015-10-12 01:32:05 -05:00
dm-bio-prison.c	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
dm-bio-prison.h	dm bio prison: add dm_cell_promote_or_release()	2015-05-29 14:19:06 -04:00
dm-bio-record.h
dm-bufio.c	dm: convert ffs to __ffs	2015-10-31 19:06:01 -04:00
dm-bufio.h
dm-builtin.c
dm-cache-block-types.h
dm-cache-metadata.c	dm cache metadata: fix cmd_read_lock() acquiring write lock	2016-05-04 14:48:41 -07:00
dm-cache-metadata.h	dm cache: make sure every metadata function checks fail_io	2016-04-12 09:08:40 -07:00
dm-cache-policy-cleaner.c	- Revert a dm-multipath change that caused a regression for unprivledged	2015-11-04 21:19:53 -08:00
dm-cache-policy-internal.h	dm cache: age and write back cache entries even without active IO	2015-06-11 17:13:01 -04:00
dm-cache-policy-mq.c	dm: convert ffs to __ffs	2015-10-31 19:06:01 -04:00
dm-cache-policy-smq.c	dm: convert ffs to __ffs	2015-10-31 19:06:01 -04:00
dm-cache-policy.c
dm-cache-policy.h	dm cache: age and write back cache entries even without active IO	2015-06-11 17:13:01 -04:00
dm-cache-target.c	dm cache: fix corruption seen when using cache > 2TB	2017-03-12 06:37:26 +01:00
dm-crypt.c	dm crypt: mark key as invalid until properly loaded	2017-01-06 11:16:15 +01:00
dm-delay.c	dm delay: document that offsets are specified in sectors	2015-10-31 19:06:05 -04:00
dm-era-target.c	dm persistent data: eliminate unnecessary return values	2015-10-31 19:06:02 -04:00
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	2016-03-03 15:07:14 -08:00
dm-flakey.c	dm flakey: return -EINVAL on interval bounds error in flakey_ctr()	2017-01-06 11:16:15 +01:00
dm-io.c	dm: drop NULL test before kmem_cache_destroy() and mempool_destroy()	2015-10-31 19:06:00 -04:00
dm-ioctl.c	char: make misc_deregister a void function	2015-08-05 10:35:49 -07:00
dm-kcopyd.c	mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd	2015-11-06 17:50:42 -08:00
dm-linear.c	dm linear: remove redundant target name from error messages	2015-10-31 19:06:03 -04:00
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 bug with too large bios	2016-10-07 15:23:47 +02:00
dm-log.c
dm-mpath.c	dm mpath: check if path's request_queue is dying in activate_path()	2016-10-28 03:01:28 -04:00
dm-mpath.h
dm-path-selector.c
dm-path-selector.h
dm-queue-length.c
dm-raid.c	dm raid: fix round up of default region size	2015-10-02 12:02:31 -04:00
dm-raid1.c	dm mirror: fix read error on recovery after default leg failure	2016-11-10 16:36:35 +01:00
dm-region-hash.c	dm: convert ffs to __ffs	2015-10-31 19:06:01 -04:00
dm-round-robin.c
dm-service-time.c
dm-snap-persistent.c	dm snapshot: fix hung bios when copy error occurs	2016-03-03 15:07:14 -08:00
dm-snap-transient.c	dm snapshot: fix hung bios when copy error occurs	2016-03-03 15:07:14 -08:00
dm-snap.c	dm snapshot: disallow the COW and origin devices from being identical	2016-04-12 09:08:39 -07:00
dm-stats.c	dm stats: fix a leaked s->histogram_boundaries array	2017-03-12 06:37:26 +01:00
dm-stats.h	dm stats: support precise timestamps	2015-06-17 12:40:40 -04:00
dm-stripe.c	Merge tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm	2015-09-02 16:35:26 -07:00
dm-switch.c	dm switch: simplify conditional in alloc_region_table()	2015-10-31 19:06:06 -04:00
dm-sysfs.c	dm: add 'use_blk_mq' module param and expose in per-device ro sysfs attr	2015-04-15 12:10:17 -04:00
dm-table.c	dm snapshot: disallow the COW and origin devices from being identical	2016-04-12 09:08:39 -07:00
dm-target.c	dm: allocate requests in target when stacking on blk-mq devices	2015-02-09 13:06:47 -05:00
dm-thin-metadata.c	dm thin metadata: don't issue prefetches if a transaction abort has failed	2016-04-12 09:08:40 -07:00
dm-thin-metadata.h	dm thin metadata: add dm_thin_remove_range()	2015-06-11 17:13:04 -04:00
dm-thin.c	dm thin: fix race condition when destroying thin pool workqueue	2016-03-03 15:07:10 -08:00
dm-uevent.c
dm-uevent.h
dm-verity.c	dm: refactor ioctl handling	2015-10-31 19:05:59 -04:00
dm-zero.c	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
dm.c	blk: Ensure users for current->bio_list can see the full list.	2017-04-08 09:53:32 +02:00
dm.h	block: kill merge_bvec_fn() completely	2015-08-13 12:31:57 -06:00
faulty.c	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
Kconfig	raid5-cache: add crc32c Kconfig dependency	2015-11-09 09:09:52 +11:00
linear.c	md linear: fix a race between linear_add() and linear_congested()	2017-03-12 06:37:30 +01:00
linear.h	md linear: fix a race between linear_add() and linear_congested()	2017-03-12 06:37:30 +01:00
Makefile	raid5: add basic stripe log	2015-10-24 17:16:19 +11:00
md-cluster.c	md-cluster: remove mddev arg from add_resync_info()	2015-10-24 17:16:18 +11:00
md-cluster.h	md-cluster: Fix adding of new disk with new reload code	2015-10-12 03:35:30 -05:00
md.c	md: MD_RECOVERY_NEEDED is set for mddev->recovery	2017-01-12 11:22:50 +01:00
md.h	md/raid: only permit hot-add of compatible integrity profiles	2016-02-17 12:30:57 -08:00
multipath.c	md: multipath: don't hardcopy bio in .make_request path	2016-04-12 09:08:57 -07:00
multipath.h
raid0.c	md/raid0: apply base queue limits *before* disk_stack_limits	2015-10-02 17:23:44 +10:00
raid0.h	block: kill merge_bvec_fn() completely	2015-08-13 12:31:57 -06:00
raid1.c	blk: Ensure users for current->bio_list can see the full list.	2017-04-08 09:53:32 +02:00
raid1.h	md-cluster: Use a small window for resync	2015-10-12 01:32:05 -05:00
raid5-cache.c	raid5-cache: start raid5 readonly if journal is missing	2015-11-01 13:48:29 +11:00
raid5.c	md/raid5: limit request size according to implementation limits	2017-01-09 08:07:49 +01:00
raid5.h	RAID5: revert e9e4c377e2 to fix a livelock	2016-04-12 09:08:57 -07:00
raid10.c	blk: Ensure users for current->bio_list can see the full list.	2017-04-08 09:53:32 +02:00
raid10.h	md/raid10: ensure device failure recorded before write request returns.	2015-08-31 19:43:45 +02:00