FEX-Emu/linux
1
0
Fork 0
mirror of https://github.com/FEX-Emu/linux.git synced 2024-12-27 20:07:09 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
c2a06c38d9
linux/drivers/md
History
NeilBrown c2a06c38d9 Merge branch 'md-next' of git://github.com/goldwynr/linux into for-next 
md-cluster: A better way for METADATA_UPDATED processing

The processing of METADATA_UPDATED message is too simple and prone to
errors. Besides, it would not update the internal data structures as
required.

This set of patches reads the superblock from one of the device of the MD
and checks for changes in the in-memory data structures. If there is a change,
it performs the necessary actions to keep the internal data structures
as it would be in the primary node.

An example is if a devices turns faulty. The algorithm is:

1. The initiator node marks the device as faulty and updates the superblock
2. The initiator node sends METADATA_UPDATED with an advisory  device number to the rest of the nodes.
3. The receiving node on receiving the METADATA_UPDATED message
  3.1 Reads the superblock
  3.2 Detects a device has failed by comparing with memory structure
  3.3 Calls the necessary functions to record the failure and get the device out of the active array.
  3.4 Acknowledges the message.

The patch series also fixes adding the disk which was impacted because of
the changes.

Patches can also be found at
https://github.com/goldwynr/linux branch md-next

Changes since V2:
 - Fix status synchrnoization after --add and --re-add operations
 - Included Guoqing's patches on endian correctness, zeroing cmsg etc
 - Restructure add_new_disk() and cancel()
2015-10-14 07:09:52 +11:00
..
bcache bcache: remove driver private bio splitting code 2015-08-13 12:31:40 -06:00
persistent-data dm: remove unlikely() before IS_ERR() 2015-08-12 11:32:21 -04:00
bitmap.c md-cluster: Use a small window for resync 2015-10-12 01:32:05 -05:00
bitmap.h md-cluster: Use a small window for resync 2015-10-12 01:32:05 -05:00
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-record.h
dm-bufio.c block: add a bi_error field to struct bio 2015-07-29 08:55:15 -06:00
dm-bufio.h
dm-builtin.c
dm-cache-block-types.h
dm-cache-metadata.c dm cache: add fail io mode and needs_check flag 2015-06-11 17:13:00 -04:00
dm-cache-metadata.h dm cache: add fail io mode and needs_check flag 2015-06-11 17:13:00 -04:00
dm-cache-policy-cleaner.c dm cache: fix NULL pointer when switching from cleaner policy 2015-10-09 09:16:29 -04:00
dm-cache-policy-internal.h dm cache: age and write back cache entries even without active IO 2015-06-11 17:13:01 -04:00
dm-cache-policy-mq.c dm cache policy smq: move 'dm-cache-default' module alias to SMQ 2015-08-12 11:27:29 -04:00
dm-cache-policy-smq.c dm cache policy smq: change the mutex to a spinlock 2015-08-12 11:32:19 -04:00
dm-cache-policy.c
dm-cache-policy.h dm cache: age and write back cache entries even without active IO 2015-06-11 17:13:01 -04:00
dm-cache-target.c Merge tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm 2015-09-02 16:35:26 -07:00
dm-crypt.c dm crypt: constrain crypt device's max_segment_size to PAGE_SIZE 2015-09-14 12:04:24 -04:00
dm-delay.c dm: do not override error code returned from dm_get_device() 2015-08-12 11:32:21 -04:00
dm-era-target.c block: kill merge_bvec_fn() completely 2015-08-13 12:31:57 -06:00
dm-exception-store.c dm snapshot: add new persistent store option to support overflow 2015-10-09 16:57:03 -04:00
dm-exception-store.h dm snapshot: add new persistent store option to support overflow 2015-10-09 16:57:03 -04:00
dm-flakey.c Merge tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm 2015-09-02 16:35:26 -07:00
dm-io.c block: remove bio_get_nr_vecs() 2015-08-13 12:32:04 -06:00
dm-ioctl.c char: make misc_deregister a void function 2015-08-05 10:35:49 -07:00
dm-kcopyd.c
dm-linear.c Merge tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm 2015-09-02 16:35:26 -07:00
dm-log-userspace-base.c
dm-log-userspace-transfer.c
dm-log-userspace-transfer.h
dm-log-writes.c Merge tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm 2015-09-02 16:35:26 -07:00
dm-log.c
dm-mpath.c dm-mpath, scsi_dh: request scsi_dh modules in scsi_dh, not dm-mpath 2015-08-28 13:14:55 -07:00
dm-mpath.h
dm-path-selector.c
dm-path-selector.h
dm-queue-length.c
dm-raid1.c Merge tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm 2015-09-02 16:35:26 -07:00
dm-raid.c dm raid: fix round up of default region size 2015-10-02 12:02:31 -04:00
dm-region-hash.c
dm-round-robin.c
dm-service-time.c
dm-snap-persistent.c dm snapshot: add new persistent store option to support overflow 2015-10-09 16:57:03 -04:00
dm-snap-transient.c dm snapshot: add new persistent store option to support overflow 2015-10-09 16:57:03 -04:00
dm-snap.c dm snapshot: add new persistent store option to support overflow 2015-10-09 16:57:03 -04:00
dm-stats.c dm stats: report precise_timestamps and histogram in @stats_list output 2015-08-18 17:20:03 -04:00
dm-stats.h dm stats: support precise timestamps 2015-06-17 12:40:40 -04:00
dm-stripe.c Merge tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm 2015-09-02 16:35:26 -07:00
dm-switch.c
dm-sysfs.c
dm-table.c block: Replace SG_GAPS with new queue limits mask 2015-08-19 14:26:02 -07:00
dm-target.c
dm-thin-metadata.c dm thin metadata: delete btrees when releasing metadata snapshot 2015-08-12 10:42:51 -04:00
dm-thin-metadata.h dm thin metadata: add dm_thin_remove_range() 2015-06-11 17:13:04 -04:00
dm-thin.c dm thin: disable discard support for thin devices if pool's is disabled 2015-09-13 21:32:10 -04:00
dm-uevent.c
dm-uevent.h
dm-verity.c Merge tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm 2015-09-02 16:35:26 -07:00
dm-zero.c block: add a bi_error field to struct bio 2015-07-29 08:55:15 -06:00
dm.c dm: fix request-based dm error reporting 2015-10-06 10:08:16 -04:00
dm.h block: kill merge_bvec_fn() completely 2015-08-13 12:31:57 -06:00
faulty.c block: add a bi_error field to struct bio 2015-07-29 08:55:15 -06:00
Kconfig SCSI misc on 20150911 2015-09-11 18:15:18 -07:00
linear.c block: kill merge_bvec_fn() completely 2015-08-13 12:31:57 -06:00
linear.h
Makefile dm cache: add stochastic-multi-queue (smq) policy 2015-06-11 17:12:59 -04:00
md-cluster.c md-cluster: Add 'SUSE' as author for md-cluster.c 2015-10-12 11:58:15 -05:00
md-cluster.h md-cluster: Fix adding of new disk with new reload code 2015-10-12 03:35:30 -05:00
md.c md: check the return value for metadata_update_start 2015-10-12 11:58:15 -05:00
md.h md-cluster: Improve md_reload_sb to be less error prone 2015-10-12 01:34:48 -05:00
multipath.c md: drop null test before destroy functions 2015-10-02 17:23:44 +10:00
multipath.h
raid0.c md/raid0: apply base queue limits *before* disk_stack_limits 2015-10-02 17:23:44 +10:00
raid0.h block: kill merge_bvec_fn() completely 2015-08-13 12:31:57 -06:00
raid1.c Merge branch 'md-next' of git://github.com/goldwynr/linux into for-next 2015-10-14 07:09:52 +11:00
raid1.h md-cluster: Use a small window for resync 2015-10-12 01:32:05 -05:00
raid5.c md-cluster: Use a small window for resync 2015-10-12 01:32:05 -05:00
raid5.h md/raid5: ensure device failure recorded before write request returns. 2015-08-31 19:43:59 +02:00
raid10.c Merge branch 'md-next' of git://github.com/goldwynr/linux into for-next 2015-10-14 07:09:52 +11:00
raid10.h md/raid10: ensure device failure recorded before write request returns. 2015-08-31 19:43:45 +02:00