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41743c1f04
linux/drivers/md
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Shaohua Li 41743c1f04 md/raid1: skip data copy for behind io for discard request 
discard request doesn't have data attached, so it's meaningless to
allocate memory and copy from original bio for behind IO. And the copy
is bogus because bio_copy_data_partial can't handle discard request.

We don't support writesame/writezeros request so far.

Reviewed-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Shaohua Li <shli@fb.com>
2017-03-25 09:38:06 -07:00
..
bcache drivers/md/bcache/util.h: remove duplicate inclusion of blkdev.h 2017-03-09 17:01:10 -08:00
persistent-data sched/headers: Prepare to move the get_task_struct()/put_task_struct() and related APIs from <linux/sched.h> to <linux/sched/task.h> 2017-03-02 08:42:40 +01:00
bitmap.c md: fix several trivial typos in comments 2017-03-23 22:54:57 -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.c
dm-bio-prison.h
dm-bio-record.h
dm-bufio.c sched/headers: Prepare to move the memalloc_noio_*() APIs to <linux/sched/mm.h> 2017-03-02 08:42:33 +01:00
dm-bufio.h
dm-builtin.c dm: move request-based code out to dm-rq.[hc] 2016-06-10 15:15:44 -04:00
dm-cache-block-types.h linux: drop __bitwise__ everywhere 2016-12-16 00:13:41 +02:00
dm-cache-metadata.c dm cache metadata: use cursor api in blocks_are_clean_separate_dirty() 2017-02-16 13:12:51 -05:00
dm-cache-metadata.h dm cache metadata: add "metadata2" feature 2017-02-16 13:12:47 -05:00
dm-cache-policy-cleaner.c dm cache: speed up writing of the hint array 2016-09-22 11:15:02 -04:00
dm-cache-policy-internal.h dm cache: speed up writing of the hint array 2016-09-22 11:15:02 -04:00
dm-cache-policy-smq.c dm cache policy smq: use hash_32() instead of hash_32_generic() 2016-12-08 19:42:37 -05:00
dm-cache-policy.c
dm-cache-policy.h dm cache: speed up writing of the hint array 2016-09-22 11:15:02 -04:00
dm-cache-target.c - Fix dm-raid transient device failure processing and other smaller 2017-02-21 12:11:41 -08:00
dm-core.h dm: always defer request allocation to the owner of the request_queue 2017-01-27 15:08:35 -07:00
dm-crypt.c KEYS: Differentiate uses of rcu_dereference_key() and user_key_payload() 2017-03-02 10:09:00 +11:00
dm-delay.c dm: rename target's per_bio_data_size to per_io_data_size 2016-02-22 22:34:37 -05:00
dm-era-target.c block: Use pointer to backing_dev_info from request_queue 2017-02-02 08:20:48 -07:00
dm-exception-store.c
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: introduce "error_writes" feature 2016-12-13 15:01:31 -05:00
dm-io.c dm io: use bvec iterator helpers to implement .get_page and .next_page 2016-11-21 09:51:57 -05:00
dm-ioctl.c sched/headers: Prepare to move the memalloc_noio_*() APIs to <linux/sched/mm.h> 2017-03-02 08:42:33 +01:00
dm-kcopyd.c dm: move request-based code out to dm-rq.[hc] 2016-06-10 15:15:44 -04:00
dm-linear.c libnvdimm for 4.8 2016-07-28 17:38:16 -07:00
dm-log-userspace-base.c
dm-log-userspace-transfer.c
dm-log-userspace-transfer.h
dm-log-writes.c Merge branch 'for-4.9/block' of git://git.kernel.dk/linux-block 2016-10-07 14:42:05 -07:00
dm-log.c block,fs: use REQ_* flags directly 2016-11-01 09:43:26 -06:00
dm-mpath.c Merge branch 'for-4.11/next' into for-4.11/linus-merge 2017-02-17 14:08:19 -07:00
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-raid1.c Merge branch 'for-4.10/block' of git://git.kernel.dk/linux-block 2016-12-13 10:19:16 -08:00
dm-raid.c dm raid: bump the target version 2017-02-28 16:47:52 -05:00
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 dm-rq: don't dereference request payload after ending request 2017-02-24 13:19:32 -07:00
dm-rq.h dm: always defer request allocation to the owner of the request_queue 2017-01-27 15:08:35 -07:00
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 block,fs: use REQ_* flags directly 2016-11-01 09:43:26 -06:00
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: rename bio bi_rw to bi_opf 2016-08-07 14:41:02 -06:00
dm-stats.c dm stats: fix a leaked s->histogram_boundaries array 2017-02-16 14:17:07 -05:00
dm-stats.h
dm-stripe.c block: rename bio bi_rw to bi_opf 2016-08-07 14:41:02 -06:00
dm-switch.c
dm-sysfs.c dm: move request-based code out to dm-rq.[hc] 2016-06-10 15:15:44 -04:00
dm-table.c block: Use pointer to backing_dev_info from request_queue 2017-02-02 08:20:48 -07:00
dm-target.c dm: always defer request allocation to the owner of the request_queue 2017-01-27 15:08:35 -07:00
dm-thin-metadata.c dm thin: fix a race condition between discarding and provisioning a block 2016-07-20 12:43:35 -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 block: Use pointer to backing_dev_info from request_queue 2017-02-02 08:20:48 -07:00
dm-uevent.c
dm-uevent.h
dm-verity-fec.c dm verity fec: fix block calculation 2016-07-01 23:29:08 -04:00
dm-verity-fec.h
dm-verity-target.c dm verity: fix incorrect error message 2016-11-21 09:52:01 -05:00
dm-verity.h
dm-zero.c block: rename bio bi_rw to bi_opf 2016-08-07 14:41:02 -06:00
dm.c blk: Ensure users for current->bio_list can see the full list. 2017-03-11 15:31:37 -07:00
dm.h dm: always defer request allocation to the owner of the request_queue 2017-01-27 15:08:35 -07:00
faulty.c md: fast clone bio in bio_clone_mddev() 2017-02-15 11:24:54 -08:00
Kconfig dm block manager: make block locking optional 2016-11-14 15:17:47 -05:00
linear.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md 2017-02-24 14:42:19 -08:00
linear.h md linear: fix a race between linear_add() and linear_congested() 2017-02-13 09:17:50 -08:00
Makefile raid5-ppl: Partial Parity Log write logging implementation 2017-03-16 16:55:54 -07:00
md-cluster.c md-cluster: add the support for resize 2017-03-16 16:55:50 -07:00
md-cluster.h md-cluster: add the support for resize 2017-03-16 16:55:50 -07:00
md.c MD: use per-cpu counter for writes_pending 2017-03-22 19:18:56 -07:00
md.h md: prepare for managing resync I/O pages in clean way 2017-03-24 10:41:36 -07:00
multipath.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md 2017-02-24 14:42:19 -08:00
multipath.h
raid0.c md: superblock changes for PPL 2017-03-16 16:55:53 -07:00
raid0.h
raid1.c md/raid1: skip data copy for behind io for discard request 2017-03-25 09:38:06 -07:00
raid1.h md: raid1: improve write behind 2017-03-24 10:41:37 -07:00
raid5-cache.c md/raid5: use bio_inc_remaining() instead of repurposing bi_phys_segments as a counter 2017-03-22 19:16:30 -07:00
raid5-log.h md/raid5: call bio_endio() directly rather than queueing for later. 2017-03-22 19:16:12 -07:00
raid5-ppl.c raid5-ppl: silence a misleading warning message 2017-03-23 22:38:46 -07:00
raid5.c md: fix several trivial typos in comments 2017-03-23 22:54:57 -07:00
raid5.h md/raid5: remove over-loading of ->bi_phys_segments. 2017-03-22 19:16:56 -07:00
raid10.c md: raid10: avoid direct access to bvec table in handle_reshape_read_error 2017-03-24 10:41:37 -07:00
raid10.h md/raid10: add failfast handling for reads. 2016-11-22 09:14:28 -08:00