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: use kmalloc to allocate bio in bch_data_verify()
2017-06-18 12:40:59 -06:00
dm space map disk: fix some book keeping in the disk space map
2017-05-15 15:09:50 -04:00
md: uuid debug statement now in processor byte order.
2017-05-24 15:58:43 -07:00
dm bio prison: use rb_entry() rather than container_of()
2017-06-19 11:03:50 -04:00
block: switch bios to blk_status_t
2017-06-09 09:27:32 -06:00
dm bio prison: use rb_entry() rather than container_of()
2017-06-19 11:03:50 -04:00
Linux 4.12-rc5
2017-06-12 08:30:13 -06:00
dm cache: handle kmalloc failure allocating background_tracker struct
2017-05-17 09:44:53 -04:00
dm cache metadata: fail operations if fail_io mode has been established
2017-05-05 14:40:13 -04:00
dm cache policy smq: don't do any writebacks unless IDLE
2017-05-14 21:54:33 -04:00
block: switch bios to blk_status_t
2017-06-09 09:27:32 -06:00
dm: add basic support for using the select or poll function
2017-06-19 11:03:49 -04:00
dm crypt: add big-endian variant of plain64 IV
2017-06-19 11:03:50 -04:00
dm: mark targets that pass integrity data
2017-04-24 12:04:32 -04:00
dm block manager: remove an unused argument from dm_block_manager_create()
2017-04-27 17:08:41 -04:00
dm flakey: add support for zoned block devices
2017-06-19 11:03:51 -04:00
Linux 4.12-rc5
2017-06-12 08:30:13 -06:00
blk: make the bioset rescue_workqueue optional.
2017-06-18 12:40:59 -06:00
dm ioctl: report event number in DM_LIST_DEVICES
2017-06-19 11:03:50 -04:00
dm kcopyd: add sequential write feature
2017-06-19 11:03:51 -04:00
dm linear: add support for zoned block devices
2017-06-19 11:03:51 -04:00
block: switch bios to blk_status_t
2017-06-09 09:27:32 -06:00
dm: missing break in process_queued_bios()
2017-06-14 08:22:55 -06:00
- A major update for DM cache that reduces the latency for deciding
2017-05-03 10:31:20 -07:00
Linux 4.12-rc5
2017-06-12 08:30:13 -06:00
blk-mq: use the introduced blk_mq_unquiesce_queue()
2017-06-18 14:20:04 -06:00
block: introduce new block status code type
2017-06-09 09:27:32 -06:00
dm: make flush bios explicitly sync
2017-05-31 10:50:23 -04:00
block: switch bios to blk_status_t
2017-06-09 09:27:32 -06:00
mm: introduce kv[mz]alloc helpers
2017-05-08 17:15:12 -07:00
block: switch bios to blk_status_t
2017-06-09 09:27:32 -06:00
dm table: add zoned block devices validation
2017-06-19 11:03:50 -04:00
dm: don't return errnos from ->map
2017-06-09 09:27:32 -06:00
dm thin metadata: call precommit before saving the roots
2017-05-15 15:09:49 -04:00
block: switch bios to blk_status_t
2017-06-09 09:27:32 -06:00
- A major update for DM cache that reduces the latency for deciding
2017-05-03 10:31:20 -07:00
Linux 4.12-rc5
2017-06-12 08:30:13 -06:00
dm verity: switch to using asynchronous hash crypto API
2017-04-24 15:37:04 -04:00
dm: don't return errnos from ->map
2017-06-09 09:27:32 -06:00
dm: introduce dm_remap_zone_report()
2017-06-19 11:03:51 -04:00
dm: introduce enum dm_queue_mode to cleanup related code
2017-04-27 17:08:44 -04:00
- DM cache metadata fixes to short-circuit operations that require the
2017-05-05 19:31:06 -07:00
Merge branch 'md-next' into md-linus
2017-05-01 14:09:21 -07:00
- A major update for DM cache that reduces the latency for deciding
2017-05-03 10:31:20 -07:00
md-cluster: fix potential lock issue in add_new_disk
2017-05-21 20:37:09 -07:00
block: remove bio_clone() and all references.
2017-06-18 12:40:59 -06:00
md: initialise ->writes_pending in personality modules.
2017-06-05 16:04:35 -07:00
block: switch bios to blk_status_t
2017-06-09 09:27:32 -06:00
md/md0: optimize raid0 discard handling
2017-05-08 21:18:03 -07:00
blk: replace bioset_create_nobvec() with a flags arg to bioset_create()
2017-06-18 12:40:59 -06:00
md/raid1: Use a new variable to count flighting sync requests
2017-04-27 14:01:16 -07:00
blk: replace bioset_create_nobvec() with a flags arg to bioset_create()
2017-06-18 12:40:59 -06:00
md/r5cache: gracefully handle journal device errors for writeback mode
2017-05-11 22:11:11 -07:00
blk: replace bioset_create_nobvec() with a flags arg to bioset_create()
2017-06-18 12:40:59 -06:00
blk: replace bioset_create_nobvec() with a flags arg to bioset_create()
2017-06-18 12:40:59 -06:00
- A major update for DM cache that reduces the latency for deciding
2017-05-03 10:31:20 -07:00
blk: replace bioset_create_nobvec() with a flags arg to bioset_create()
2017-06-18 12:40:59 -06:00
md/raid10: simplify the splitting of requests.
2017-04-11 10:13:02 -07:00
b73c67c2cb