Song Liu d7bd398e97 md/r5cache: handle alloc_page failure ...

RMW of r5c write back cache uses an extra page to store old data for
prexor. handle_stripe_dirtying() allocates this page by calling
alloc_page(). However, alloc_page() may fail.

To handle alloc_page() failures, this patch adds an extra page to
disk_info. When alloc_page fails, handle_stripe() trys to use these
pages. When these pages are used by other stripe (R5C_EXTRA_PAGE_IN_USE),
the stripe is added to delayed_list.

Signed-off-by: Song Liu <songliubraving@fb.com>
Reviewed-by: NeilBrown <neilb@suse.com>
Signed-off-by: Shaohua Li <shli@fb.com>

2016-11-27 21:35:38 -08:00

..

bcache

block: export bio_free_pages to other modules

2016-09-22 07:48:03 -06:00

persistent-data

dm array: introduce cursor api

2016-09-22 11:15:04 -04:00

bitmap.c

md: Use REQ_FAILFAST_* on metadata writes where appropriate

2016-11-22 09:11:33 -08:00

bitmap.h

md-cluster: sync bitmap when node received RESYNCING msg

2016-05-04 12:39:35 -07:00

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: Refactor for new bio cloning/splitting

2013-11-23 22:33:55 -08:00

dm-bufio.c

Merge tag 'dm-4.9-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

2016-10-09 17:16:18 -07:00

dm-bufio.h

dm snapshot: use dm-bufio prefetch

2014-01-14 23:23:03 -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-block-types.h

dm cache: revert "remove remainder of distinct discard block size"

2014-11-10 15:25:30 -05:00

dm-cache-metadata.c

dm cache metadata: switch to using the new cursor api for loading metadata

2016-09-22 11:15:05 -04:00

dm-cache-metadata.h

dm cache: make sure every metadata function checks fail_io

2016-03-10 17:12:12 -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: distribute entries to random levels when switching to smq

2016-09-22 11:15:03 -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: speed up writing of the hint array

2016-09-22 11:15:02 -04:00

dm-cache-target.c

block: rename bio bi_rw to bi_opf

2016-08-07 14:41:02 -06:00

dm-core.h

dm: move request-based code out to dm-rq.[hc]

2016-06-10 15:15:44 -04:00

dm-crypt.c

Merge tag 'dm-4.9-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

2016-10-09 17:16:18 -07:00

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: rename bio bi_rw to bi_opf

2016-08-07 14:41:02 -06:00

dm-exception-store.c

Merge tag 'dm-4.4-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

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: fix reads to be issued if drop_writes configured

2016-08-24 21:55:05 -04:00

dm-io.c

block: rename bio bi_rw to bi_opf

2016-08-07 14:41:02 -06:00

dm-ioctl.c

dm: allow bio-based table to be upgraded to bio-based with DAX support

2016-07-20 23:49:52 -04:00

dm-kcopyd.c

dm: move request-based code out to dm-rq.[hc]

2016-06-10 15:15:44 -04:00

dm-linear.c

Merge tag 'libnvdimm-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

2016-07-28 17:38:16 -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

Merge branch 'for-4.9/block' of git://git.kernel.dk/linux-block

2016-10-07 14:42:05 -07:00

dm-log.c

dm log: fix unitialized bio operation flags

2016-08-24 21:55:05 -04:00

dm-mpath.c

dm mpath: always return reservation conflict without failing over

2016-09-29 10:57:07 -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-raid1.c

dm mirror: use all available legs on multiple failures

2016-10-14 11:55:17 -04:00

dm-raid.c

dm raid: fix activation of existing raid4/10 devices

2016-10-17 16:41:31 -04:00

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: do not use this_cpu_ptr() without having preemption disabled

2016-08-15 09:23:14 -04:00

dm-rq.c

Merge tag 'dm-4.9-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

2016-10-28 09:27:58 -07:00

dm-rq.h

dm rq: introduce dm_mq_kick_requeue_list()

2016-09-15 11:16:05 -04:00

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: use bio op accessors

2016-06-07 13:41:38 -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: move request-based code out to dm-rq.[hc]

2016-06-10 15:15:44 -04:00

dm-stats.h

dm stats: support precise timestamps

2015-06-17 12:40:40 -04:00

dm-stripe.c

block: rename bio bi_rw to bi_opf

2016-08-07 14:41:02 -06:00

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 table: fix missing dm_put_target_type() in dm_table_add_target()

2016-10-24 11:17:46 -04:00

dm-target.c

Merge tag 'libnvdimm-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

2016-07-28 17:38:16 -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: rename bio bi_rw to bi_opf

2016-08-07 14:41:02 -06:00

dm-uevent.c

md: Add in export.h for files using EXPORT_SYMBOL

2011-10-31 19:31:19 -04:00

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: add support for forward error correction

2015-12-10 10:39:03 -05:00

dm-verity-target.c

dm: rename target's per_bio_data_size to per_io_data_size

2016-02-22 22:34:37 -05:00

dm-verity.h

dm verity: add ignore_zero_blocks feature

2015-12-10 10:39:03 -05:00

dm-zero.c

block: rename bio bi_rw to bi_opf

2016-08-07 14:41:02 -06:00

dm.c

Merge tag 'dm-4.9-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

2016-10-28 09:27:58 -07:00

dm.h

dm: add infrastructure for DAX support

2016-07-20 23:49:49 -04:00

faulty.c

MD: rename some functions

2016-01-20 13:52:20 -08:00

Kconfig

dm: add missing newline between DM_DEBUG_BLOCK_STACK_TRACING and DM_BUFIO

2016-03-10 17:12:11 -05:00

linear.c

md: add block tracing for bio_remapping

2016-11-18 09:32:50 -08:00

linear.h

…

Makefile

dm: move request-based code out to dm-rq.[hc]

2016-06-10 15:15:44 -04:00

md-cluster.c

md-cluster: make resync lock also could be interruptted

2016-09-21 09:09:44 -07:00

md-cluster.h

md-cluster: gather resync infos and enable recv_thread after bitmap is ready

2016-05-09 09:24:03 -07:00

md.c

md: stop write should stop journal reclaim

2016-11-23 19:30:25 -08:00

md.h

md: Use REQ_FAILFAST_* on metadata writes where appropriate

2016-11-22 09:11:33 -08:00

multipath.c

md/multipath: replace printk() with pr_*()

2016-11-07 15:08:22 -08:00

multipath.h

…

raid0.c

md: add block tracing for bio_remapping

2016-11-18 09:32:50 -08:00

raid0.h

block: kill merge_bvec_fn() completely

2015-08-13 12:31:57 -06:00

raid1.c

md/raid1: add failfast handling for writes.

2016-11-22 09:14:10 -08:00

raid1.h

md/raid1: add failfast handling for reads.

2016-11-22 09:13:18 -08:00

raid5-cache.c

md/r5cache: handle alloc_page failure

2016-11-27 21:35:38 -08:00

raid5.c

md/r5cache: handle alloc_page failure

2016-11-27 21:35:38 -08:00

raid5.h

md/r5cache: handle alloc_page failure

2016-11-27 21:35:38 -08:00

raid10.c

md/raid10: add failfast handling for writes.

2016-11-22 09:14:42 -08:00

raid10.h

md/raid10: add failfast handling for reads.

2016-11-22 09:14:28 -08:00