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linux/drivers/md
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Mike Snitzer 19b0092e26 dm cache: reduce bio front_pad size in writeback mode 
A recent patch to fix the dm cache target's writethrough mode extended
the bio's front_pad to include a 1056-byte struct dm_bio_details.
Writeback mode doesn't need this, so this patch reduces the
per_bio_data_size to 16 bytes in this case instead of 1096.

The dm_bio_details structure was added in "dm cache: fix writes to
cache device in writethrough mode" which fixed commit e2e74d617e ("dm
cache: fix race in writethrough implementation").  In writeback mode
we avoid allocating the writethrough-specific members of the
per_bio_data structure (the dm_bio_details structure included).

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2013-04-05 15:36:34 +01:00
..
persistent-data
dm thin: fix discard corruption
2013-03-20 17:21:24 +00:00
bitmap.c
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
bitmap.h
md/bitmap: record the space available for the bitmap in the superblock.
2012-05-22 13:55:34 +10:00
dm-bio-prison.c
dm: add cache target
2013-03-01 22:45:51 +00:00
dm-bio-prison.h
dm: add cache target
2013-03-01 22:45:51 +00:00
dm-bio-record.h
dm: preserve bi_io_vec when resubmitting bios
2009-04-02 19:55:23 +01:00
dm-bufio.c
dm verity: avoid deadlock
2013-03-20 17:21:25 +00:00
dm-bufio.h
dm bufio: prefetch
2012-03-28 18:41:29 +01:00
dm-cache-block-types.h
dm: add cache target
2013-03-01 22:45:51 +00:00
dm-cache-metadata.c
dm cache: policy ignore hints if generated by different version
2013-03-20 17:21:28 +00:00
dm-cache-metadata.h
dm cache: policy ignore hints if generated by different version
2013-03-20 17:21:28 +00:00
dm-cache-policy-cleaner.c
dm cache: policy change version from string to integer set
2013-03-20 17:21:27 +00:00
dm-cache-policy-internal.h
dm cache: policy change version from string to integer set
2013-03-20 17:21:27 +00:00
dm-cache-policy-mq.c
dm cache: policy change version from string to integer set
2013-03-20 17:21:27 +00:00
dm-cache-policy.c
dm cache: policy change version from string to integer set
2013-03-20 17:21:27 +00:00
dm-cache-policy.h
dm cache: policy change version from string to integer set
2013-03-20 17:21:27 +00:00
dm-cache-target.c
dm cache: reduce bio front_pad size in writeback mode
2013-04-05 15:36:34 +01:00
dm-crypt.c
dm: rename request variables to bios
2013-03-01 22:45:47 +00:00
dm-delay.c
dm: rename request variables to bios
2013-03-01 22:45:47 +00:00
dm-exception-store.c
dm: replace simple_strtoul
2012-07-27 15:07:59 +01:00
dm-exception-store.h
dm snapshot: test chunk size against both origin and snapshot
2010-08-12 04:13:51 +01:00
dm-flakey.c
dm: rename request variables to bios
2013-03-01 22:45:47 +00:00
dm-io.c
dm kcopyd: add WRITE SAME support to dm_kcopyd_zero
2012-12-21 20:23:37 +00:00
dm-ioctl.c
dm ioctl: allow message to return data
2013-03-01 22:45:49 +00:00
dm-kcopyd.c
dm kcopyd: introduce configurable throttling
2013-03-01 22:45:49 +00:00
dm-linear.c
dm: rename request variables to bios
2013-03-01 22:45:47 +00:00
dm-log-userspace-base.c
Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2011-11-06 19:44:47 -08:00
dm-log-userspace-transfer.c
connector/userns: replace netlink uses of cap_raised() with capable()
2012-05-10 23:21:39 -04:00
dm-log-userspace-transfer.h
dm log: userspace add luid to distinguish between concurrent log instances
2009-09-04 20:40:34 +01:00
dm-log.c
dm: use memweight()
2012-07-30 17:25:16 -07:00
dm-mpath.c
dm: rename request variables to bios
2013-03-01 22:45:47 +00:00
dm-mpath.h
dm mpath: remove is_active from struct dm_path
2008-10-10 13:36:58 +01:00
dm-path-selector.c
md: Add module.h to all files using it implicitly
2011-10-31 19:31:18 -04:00
dm-path-selector.h
dm mpath: add start_io and nr_bytes to path selectors
2009-06-22 10:12:27 +01:00
dm-queue-length.c
dm: reject trailing characters in sccanf input
2012-03-28 18:41:26 +01:00
dm-raid1.c
dm kcopyd: introduce configurable throttling
2013-03-01 22:45:49 +00:00
dm-raid.c
md updates for 3.9
2013-03-05 17:22:08 -08:00
dm-region-hash.c
dm raid1: fix crash with mirror recovery and discard
2012-07-20 14:25:03 +01:00
dm-round-robin.c
dm: reject trailing characters in sccanf input
2012-03-28 18:41:26 +01:00
dm-service-time.c
dm: reject trailing characters in sccanf input
2012-03-28 18:41:26 +01:00
dm-snap-persistent.c
md: Add in export.h for files using EXPORT_SYMBOL
2011-10-31 19:31:19 -04:00
dm-snap-transient.c
md: Add in export.h for files using EXPORT_SYMBOL
2011-10-31 19:31:19 -04:00
dm-snap.c
dm kcopyd: introduce configurable throttling
2013-03-01 22:45:49 +00:00
dm-stripe.c
dm: rename request variables to bios
2013-03-01 22:45:47 +00:00
dm-sysfs.c
Driver core: Constify struct sysfs_ops in struct kobj_type
2010-03-07 17:04:49 -08:00
dm-table.c
dm: rename request variables to bios
2013-03-01 22:45:47 +00:00
dm-target.c
dm: rename request variables to bios
2013-03-01 22:45:47 +00:00
dm-thin-metadata.c
dm persistent data: set some btree fn parms const
2013-03-01 22:45:47 +00:00
dm-thin-metadata.h
dm thin metadata: introduce dm_pool_abort_metadata
2012-07-27 15:08:15 +01:00
dm-thin.c
dm thin: fix non power of two discard granularity calc
2013-03-20 17:21:25 +00:00
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.c
dm verity: avoid deadlock
2013-03-20 17:21:25 +00:00
dm-zero.c
dm: rename request variables to bios
2013-03-01 22:45:47 +00:00
dm.c
dm: add target num_write_bios fn
2013-03-01 22:45:49 +00:00
dm.h
dm: introduce per_bio_data
2012-12-21 20:23:38 +00:00
faulty.c
md faulty: use disk_stack_limits()
2012-10-22 10:44:55 +11:00
Kconfig
md updates for 3.9
2013-03-05 17:22:08 -08:00
linear.c
md: linear supports TRIM
2012-10-11 13:08:44 +11:00
linear.h
md/linear: typedef removal: linear_conf_t -> struct linear_conf
2011-10-11 16:48:54 +11:00
Makefile
dm cache: add cleaner policy
2013-03-01 22:45:52 +00:00
md.c
MD: Prevent sysfs operations on uninitialized kobjects
2013-03-20 13:17:57 +11:00
md.h
MD: Prevent sysfs operations on uninitialized kobjects
2013-03-20 13:17:57 +11:00
multipath.c
MD: change the parameter of md thread
2012-10-11 13:34:00 +11:00
multipath.h
md/multipath: typedef removal: multipath_conf_t -> struct mpconf
2011-10-11 16:48:57 +11:00
raid0.c
md/raid0: improve error message when converting RAID4-with-spares to RAID0
2013-02-26 11:58:44 +11:00
raid0.h
md: add proper merge_bvec handling to RAID0 and Linear.
2012-03-19 12:46:39 +11:00
raid1.c
md/raid1,raid10: fix deadlock with freeze_array()
2013-02-26 11:58:50 +11:00
raid1.h
md/raid1: prevent merging too large request
2012-07-31 10:03:53 +10:00
raid5.c
A few bugfixes for md
2013-03-23 15:49:49 -07:00
raid5.h
md: remove CONFIG_MULTICORE_RAID456 entirely
2013-03-20 13:21:14 +11:00
raid10.c
md/raid1,raid10: fix deadlock with freeze_array()
2013-02-26 11:58:50 +11:00
raid10.h
MD RAID10: Improve redundancy for 'far' and 'offset' algorithms (part 1)
2013-02-26 11:55:30 +11:00