Damien Le Moal b73c67c2cb dm kcopyd: add sequential write feature ... When copyying blocks to host-managed zoned block devices, writes must be sequential. However, dm_kcopyd_copy() does not guarantee this as writes are issued in the completion order of reads, and reads may complete out of order despite being issued sequentially. Fix this by introducing the DM_KCOPYD_WRITE_SEQ feature flag. This can be specified when calling dm_kcopyd_copy() and should be set automatically if one of the destinations is a host-managed zoned block device. For a split job, the master job maintains the write position at which writes must be issued. This is checked with the pop() function which is modified to not return any write I/O sub job that is not at the correct write position. When DM_KCOPYD_WRITE_SEQ is specified for a job, errors cannot be ignored and the flag DM_KCOPYD_IGNORE_ERROR is ignored, even if specified by the user. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>		2017-06-19 11:03:51 -04:00
..
bcache	bcache: use kmalloc to allocate bio in bch_data_verify()	2017-06-18 12:40:59 -06:00
persistent-data	dm space map disk: fix some book keeping in the disk space map	2017-05-15 15:09:50 -04:00
bitmap.c	md: uuid debug statement now in processor byte order.	2017-05-24 15:58:43 -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-bufio.c	Linux 4.12-rc5	2017-06-12 08:30:13 -06:00
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-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-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
dm-exception-store.h
dm-flakey.c	dm flakey: add support for zoned block devices	2017-06-19 11:03:51 -04:00
dm-integrity.c	Linux 4.12-rc5	2017-06-12 08:30:13 -06:00
dm-io.c	blk: make the bioset rescue_workqueue optional.	2017-06-18 12:40:59 -06:00
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	dm linear: add support for zoned block devices	2017-06-19 11:03:51 -04:00
dm-log-userspace-base.c
dm-log-userspace-transfer.c
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: missing break in process_queued_bios()	2017-06-14 08:22:55 -06:00
dm-mpath.h
dm-path-selector.c
dm-path-selector.h
dm-queue-length.c
dm-raid1.c	Linux 4.12-rc5	2017-06-12 08:30:13 -06:00
dm-raid.c	- A major update for DM cache that reduces the latency for deciding	2017-05-03 10:31:20 -07:00
dm-region-hash.c
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-snap-persistent.c	dm: make flush bios explicitly sync	2017-05-31 10:50:23 -04:00
dm-snap-transient.c
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-stripe.c	block: switch bios to blk_status_t	2017-06-09 09:27:32 -06:00
dm-switch.c
dm-sysfs.c
dm-table.c	dm table: add zoned block devices validation	2017-06-19 11:03:50 -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.c	block: switch bios to blk_status_t	2017-06-09 09:27:32 -06:00
dm-uevent.c
dm-uevent.h
dm-verity-fec.c	- A major update for DM cache that reduces the latency for deciding	2017-05-03 10:31:20 -07:00
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.c	dm: introduce dm_remap_zone_report()	2017-06-19 11:03:51 -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: fast clone bio in bio_clone_mddev()	2017-02-15 11:24:54 -08:00
Kconfig	- DM cache metadata fixes to short-circuit operations that require the	2017-05-05 19:31:06 -07:00
linear.c	Merge branch 'md-next' into md-linus	2017-05-01 14:09:21 -07:00
linear.h	md linear: fix a race between linear_add() and linear_congested()	2017-02-13 09:17:50 -08:00
Makefile	- A major update for DM cache that reduces the latency for deciding	2017-05-03 10:31:20 -07:00
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	block: remove bio_clone() and all references.	2017-06-18 12:40:59 -06:00
md.h	md: initialise ->writes_pending in personality modules.	2017-06-05 16:04:35 -07:00
multipath.c	block: switch bios to blk_status_t	2017-06-09 09:27:32 -06:00
multipath.h
raid0.c	md/md0: optimize raid0 discard handling	2017-05-08 21:18:03 -07:00
raid0.h
raid1.c	blk: replace bioset_create_nobvec() with a flags arg to bioset_create()	2017-06-18 12:40:59 -06:00
raid1.h	md/raid1: Use a new variable to count flighting sync requests	2017-04-27 14:01:16 -07:00
raid5-cache.c	blk: replace bioset_create_nobvec() with a flags arg to bioset_create()	2017-06-18 12:40:59 -06:00
raid5-log.h	md/r5cache: gracefully handle journal device errors for writeback mode	2017-05-11 22:11:11 -07:00
raid5-ppl.c	blk: replace bioset_create_nobvec() with a flags arg to bioset_create()	2017-06-18 12:40:59 -06:00
raid5.c	blk: replace bioset_create_nobvec() with a flags arg to bioset_create()	2017-06-18 12:40:59 -06:00
raid5.h	- A major update for DM cache that reduces the latency for deciding	2017-05-03 10:31:20 -07:00
raid10.c	blk: replace bioset_create_nobvec() with a flags arg to bioset_create()	2017-06-18 12:40:59 -06:00
raid10.h	md/raid10: simplify the splitting of requests.	2017-04-11 10:13:02 -07:00