Bart Van Assche 1c23484c35 dm mpath: do not lock up a CPU with requeuing activity ... When using the block layer in single queue mode, get_request() returns ERR_PTR(-EAGAIN) if the queue is dying and the REQ_NOWAIT flag has been passed to get_request(). Avoid that the kernel reports soft lockup complaints in this case due to continuous requeuing activity. Fixes: 7083abbbf ("dm mpath: avoid that path removal can trigger an infinite loop") Cc: stable@vger.kernel.org Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Tested-by: Laurence Oberman <loberman@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Mike Snitzer <snitzer@redhat.com>		2017-08-28 09:58:27 -04:00
..
bcache	Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-07-03 13:08:04 -07:00
persistent-data	dm space map disk: fix some book keeping in the disk space map	2017-05-15 15:09:50 -04:00
Kconfig	dm zoned: drive-managed zoned block device target	2017-06-19 11:05:20 -04:00
Makefile	dm zoned: drive-managed zoned block device target	2017-06-19 11:05:20 -04:00
bitmap.c	md/bitmap: don't read page from device with Bitmap_sync	2017-07-10 10:30:41 -07:00
bitmap.h	md: move bitmap_destroy to the beginning of __md_stop	2017-03-16 16:55:58 -07:00
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	dm: Refactor for new bio cloning/splitting	2013-11-23 22:33:55 -08:00
dm-bufio.c	dm bufio: fix error code in dm_bufio_write_dirty_buffers()	2017-07-25 10:11:15 -04:00
dm-bufio.h	dm bufio: add sector start offset to dm-bufio interface	2017-03-07 13:28:33 -05:00
dm-builtin.c	dm: move request-based code out to dm-rq.[hc]	2016-06-10 15:15:44 -04:00
dm-cache-background-tracker.c	dm cache: handle kmalloc failure allocating background_tracker struct	2017-05-17 09:44:53 -04:00
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 metadata: fail operations if fail_io mode has been established	2017-05-05 14:40:13 -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: don't do any writebacks unless IDLE	2017-05-14 21:54:33 -04:00
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	block: switch bios to blk_status_t	2017-06-09 09:27:32 -06:00
dm-core.h	dm: add basic support for using the select or poll function	2017-06-19 11:03:49 -04:00
dm-crypt.c	dm crypt: add big-endian variant of plain64 IV	2017-06-19 11:03:50 -04:00
dm-delay.c	dm: mark targets that pass integrity data	2017-04-24 12:04:32 -04:00
dm-era-target.c	dm block manager: remove an unused argument from dm_block_manager_create()	2017-04-27 17:08:41 -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	2016-01-08 20:03:05 -05:00
dm-flakey.c	dm flakey: add support for zoned block devices	2017-06-19 11:03:51 -04:00
dm-integrity.c	dm integrity: test for corrupted disk format during table load	2017-07-25 10:11:14 -04:00
dm-io.c	Merge branch 'for-4.13/block' of git://git.kernel.dk/linux-block	2017-07-03 10:34:51 -07:00
dm-ioctl.c	dm ioctl: report event number in DM_LIST_DEVICES	2017-06-19 11:03:50 -04:00
dm-kcopyd.c	dm kcopyd: add sequential write feature	2017-06-19 11:03:51 -04:00
dm-linear.c	libnvdimm for 4.13	2017-07-07 09:44:06 -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	block: switch bios to blk_status_t	2017-06-09 09:27:32 -06:00
dm-log.c	block,fs: use REQ_* flags directly	2016-11-01 09:43:26 -06:00
dm-mpath.c	dm mpath: do not lock up a CPU with requeuing activity	2017-08-28 09:58:27 -04:00
dm-mpath.h	…
dm-path-selector.c	…
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 path selector: remove 'repeat_count' return from .select_path hook	2016-02-22 22:34:42 -05:00
dm-raid.c	dm raid: bump target version	2017-07-25 14:54:20 -04:00
dm-raid1.c	Merge branch 'for-4.13/block' of git://git.kernel.dk/linux-block	2017-07-03 10:34:51 -07:00
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	blk-mq: use the introduced blk_mq_unquiesce_queue()	2017-06-18 14:20:04 -06:00
dm-rq.h	block: introduce new block status code type	2017-06-09 09:27:32 -06:00
dm-service-time.c	dm path selector: remove 'repeat_count' return from .select_path hook	2016-02-22 22:34:42 -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	block: switch bios to blk_status_t	2017-06-09 09:27:32 -06:00
dm-stats.c	mm: introduce kv[mz]alloc helpers	2017-05-08 17:15:12 -07:00
dm-stats.h	dm stats: support precise timestamps	2015-06-17 12:40:40 -04:00
dm-stripe.c	libnvdimm for 4.13	2017-07-07 09:44:06 -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: move request-based code out to dm-rq.[hc]	2016-06-10 15:15:44 -04:00
dm-table.c	dm, dax: Make sure dm_dax_flush() is called if device supports it	2017-07-26 15:55:44 -04:00
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: call precommit before saving the roots	2017-05-15 15:09:49 -04:00
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	Merge branch 'for-4.13/block' of git://git.kernel.dk/linux-block	2017-07-03 10:34:51 -07:00
dm-uevent.c	…
dm-uevent.h	…
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	Linux 4.12-rc5	2017-06-12 08:30:13 -06:00
dm-verity.h	dm verity: switch to using asynchronous hash crypto API	2017-04-24 15:37:04 -04:00
dm-zero.c	dm: don't return errnos from ->map	2017-06-09 09:27:32 -06:00
dm-zoned-metadata.c	dm zoned: use GFP_NOIO in I/O path	2017-07-26 15:55:43 -04:00
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 zoned: use GFP_NOIO in I/O path	2017-07-26 15:55:43 -04:00
dm-zoned.h	dm zoned: drive-managed zoned block device target	2017-06-19 11:05:20 -04:00
dm.c	dm: fix printk() rate limiting code	2017-08-28 09:58:27 -04:00
dm.h	dm: introduce enum dm_queue_mode to cleanup related code	2017-04-27 17:08:44 -04:00
faulty.c	md: fix deadlock between mddev_suspend() and md_write_start()	2017-06-13 10:18:01 -07:00
linear.c	md: fix deadlock between mddev_suspend() and md_write_start()	2017-06-13 10:18:01 -07:00
linear.h	md linear: fix a race between linear_add() and linear_congested()	2017-02-13 09:17:50 -08:00
md-cluster.c	md-cluster: fix potential lock issue in add_new_disk	2017-05-21 20:37:09 -07:00
md-cluster.h	md-cluster: add the support for resize	2017-03-16 16:55:50 -07:00
md.c	MD: not clear ->safemode for external metadata array	2017-08-11 20:42:06 -07:00
md.h	md: raid1-10: move raid1/raid10 common code into raid1-10.c	2017-07-21 12:47:20 -07:00
multipath.c	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md	2017-07-08 12:50:18 -07:00
multipath.h	…
raid0.c	md: fix deadlock between mddev_suspend() and md_write_start()	2017-06-13 10:18:01 -07:00
raid0.h	block: kill merge_bvec_fn() completely	2015-08-13 12:31:57 -06:00
raid1-10.c	md: raid1-10: move raid1/raid10 common code into raid1-10.c	2017-07-21 12:47:20 -07:00
raid1.c	md: simplify code with bio_io_error	2017-07-21 13:16:52 -07:00
raid1.h	md/raid1: Use a new variable to count flighting sync requests	2017-04-27 14:01:16 -07:00
raid5-cache.c	md/r5cache: fix io_unit handling in r5l_log_endio()	2017-08-08 07:42:37 -07:00
raid5-log.h	md/r5cache: gracefully handle journal device errors for writeback mode	2017-05-11 22:11:11 -07:00
raid5-ppl.c	raid5-ppl: use BIOSET_NEED_BVECS when creating bioset	2017-07-12 09:26:37 -07:00
raid5.c	md/raid5: add thread_group worker async_tx_issue_pending_all	2017-07-24 07:49:15 -07:00
raid5.h	- A major update for DM cache that reduces the latency for deciding	2017-05-03 10:31:20 -07:00
raid10.c	md: simplify code with bio_io_error	2017-07-21 13:16:52 -07:00
raid10.h	md/raid10: simplify the splitting of requests.	2017-04-11 10:13:02 -07:00