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Mike Snitzer 959eb4e559 dm mpath: support discard ... Enable discard support in the DM multipath target. This discard support depends on a few discard-specific fixes to the block layer's request stacking driver methods. Discard requests are optional so don't allow a failed discard to trigger path failures. If there is a real problem with a given path the barriers associated with the discard (either before or after the discard) will cause path failure. That said, unconditionally passing discard failures up the stack is not ideal. This must be fixed once DM has more information about the nature of the underlying storage failure. Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Cc: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>		15 years ago
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.gitignore	…
Kconfig	Merge branch 'async' of macbook:git/btrfs-unstable	15 years ago
Makefile	Merge branch 'async' of macbook:git/btrfs-unstable	15 years ago
bitmap.c	md/bitmap: separate out loading a bitmap from initialising the structures.	15 years ago
bitmap.h	md/bitmap: separate out loading a bitmap from initialising the structures.	15 years ago
dm-bio-record.h	dm: preserve bi_io_vec when resubmitting bios	16 years ago
dm-crypt.c	dm: use dm_target_offset macro	15 years ago
dm-delay.c	dm delay: support discard	15 years ago
dm-exception-store.c	dm snapshot: test chunk size against both origin and snapshot	15 years ago
dm-exception-store.h	dm snapshot: test chunk size against both origin and snapshot	15 years ago
dm-io.c	block: unify flags for struct bio and struct request	15 years ago
dm-ioctl.c	dm: allow autoloading of dm mod	15 years ago
dm-kcopyd.c	block: unify flags for struct bio and struct request	15 years ago
dm-linear.c	dm: use dm_target_offset macro	15 years ago
dm-log-userspace-base.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
dm-log-userspace-transfer.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
dm-log-userspace-transfer.h	dm log: userspace add luid to distinguish between concurrent log instances	16 years ago
dm-log.c	dm table: remove unused dm_get_device range parameters	15 years ago
dm-mpath.c	dm mpath: support discard	15 years ago
dm-mpath.h	…
dm-path-selector.c	dm: path selector use module refcount directly	16 years ago
dm-path-selector.h	dm mpath: add start_io and nr_bytes to path selectors	16 years ago
dm-queue-length.c	dm mpath: add queue length load balancer	16 years ago
dm-raid1.c	dm: use dm_target_offset macro	15 years ago
dm-region-hash.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
dm-round-robin.c	dm mpath: add start_io and nr_bytes to path selectors	16 years ago
dm-service-time.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
dm-snap-persistent.c	dm snapshot: persistent use define for disk header chunk size	15 years ago
dm-snap-transient.c	dm snapshot: move cow ref from exception store to snap core	15 years ago
dm-snap.c	dm: rename map_info flush_request to target_request_nr	15 years ago
dm-stripe.c	dm stripe: support discards	15 years ago
dm-sysfs.c	Driver core: Constify struct sysfs_ops in struct kobj_type	15 years ago
dm-table.c	dm: linear support discard	15 years ago
dm-target.c	dm: error return error for discards	15 years ago
dm-uevent.c	dm table: remove dm_get from dm_table_get_md	15 years ago
dm-uevent.h	…
dm-zero.c	dm: zero silently drop discards	15 years ago
dm.c	dm: split discard requests on target boundaries	15 years ago
dm.h	dm: linear support discard	15 years ago
faulty.c	Merge commit '3ff195b011d7decf501a4d55aeed312731094796' into for-linus	15 years ago
linear.c	block: unify flags for struct bio and struct request	15 years ago
linear.h	md/linear: use call_rcu to free obsolete 'conf' structures.	16 years ago
md.c	Merge branch 'for-linus' of git://neil.brown.name/md	15 years ago
md.h	Merge branch 'for-linus' of git://neil.brown.name/md	15 years ago
multipath.c	block: unify flags for struct bio and struct request	15 years ago
multipath.h	md: remove mddev_to_conf "helper" macro	16 years ago
raid0.c	block: unify flags for struct bio and struct request	15 years ago
raid0.h	md: fix handling of array level takeover that re-arranges devices.	15 years ago
raid1.c	block: unify flags for struct bio and struct request	15 years ago
raid1.h	md/raid1: add takeover support for raid5->raid1	15 years ago
raid5.c	Merge branch 'for-linus' of git://neil.brown.name/md	15 years ago
raid5.h	md/raid5: export raid5 unplugging interface.	15 years ago
raid10.c	Merge branch 'for-linus' of git://neil.brown.name/md	15 years ago
raid10.h	md: fix handling of array level takeover that re-arranges devices.	15 years ago