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Mikulas Patocka c1cc65caa1 dm snapshot: allow chunk size to be less than page size 
Allow the snapshot chunk size to be smaller than the page size
The code is now capable of handling this due to some previous
fixes and enhancements.

As the page size varies between computers, prior to this patch,
the chunk size of a snapshot dictated which machines could read it:
Snapshots created on one machine might not be readable on another.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Reviewed-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2009-10-16 23:18:22 +01:00
..
raid6test
.gitignore
bitmap.c md: remove sparse warnings about lock context. 2009-09-23 18:06:44 +10:00
bitmap.h
dm-bio-record.h
dm-crypt.c dm table: pass correct dev area size to device_area_is_valid 2009-07-23 20:30:42 +01:00
dm-delay.c dm table: pass correct dev area size to device_area_is_valid 2009-07-23 20:30:42 +01:00
dm-exception-store.c dm snapshot: allow chunk size to be less than page size 2009-10-16 23:18:22 +01:00
dm-exception-store.h dm snapshot: use unsigned integer chunk size 2009-10-16 23:18:17 +01:00
dm-io.c dm io: retry after barrier error 2009-06-22 10:12:26 +01:00
dm-ioctl.c Driver-Core: extend devnode callbacks to provide permissions 2009-09-19 12:50:38 -07:00
dm-kcopyd.c dm kcopyd: fix callback race 2009-04-09 00:27:17 +01:00
dm-linear.c dm table: pass correct dev area size to device_area_is_valid 2009-07-23 20:30:42 +01:00
dm-log-userspace-base.c dm log: userspace fix incorrect luid cast in userspace_ctr 2009-10-16 23:18:15 +01:00
dm-log-userspace-transfer.c dm/connector: Only process connector packages from privileged processes 2009-10-02 10:54:10 -07:00
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 log: fix create_log_context to use logical_block_size of log device 2009-06-22 10:12:33 +01:00
dm-mpath.c [SCSI] scsi_dh: Use scsi_dh_set_params() in multipath. 2009-08-22 17:52:15 -05:00
dm-mpath.h
dm-path-selector.c
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 mpath: add queue length load balancer 2009-06-22 10:12:27 +01:00
dm-raid1.c bio: first step in sanitizing the bio->bi_rw flag testing 2009-09-11 14:33:31 +02:00
dm-region-hash.c dm raid1: keep retrying alloc if mempool_alloc failed 2009-06-22 10:12:13 +01:00
dm-round-robin.c dm mpath: add start_io and nr_bytes to path selectors 2009-06-22 10:12:27 +01:00
dm-service-time.c dm mpath: add service time load balancer 2009-06-22 10:12:28 +01:00
dm-snap-persistent.c dm snapshot: use unsigned integer chunk size 2009-10-16 23:18:17 +01:00
dm-snap-transient.c
dm-snap.c dm snapshot: use unsigned integer chunk size 2009-10-16 23:18:17 +01:00
dm-stripe.c block: Optimal I/O limit wrapper 2009-09-14 08:24:52 +02:00
dm-sysfs.c dm: sysfs add suspended attribute 2009-06-22 10:12:29 +01:00
dm-table.c dm stripe: expose correct io hints 2009-09-04 20:40:25 +01:00
dm-target.c
dm-uevent.c
dm-uevent.h
dm-zero.c
dm.c dm: dec_pending needs locking to save error value 2009-10-16 23:18:15 +01:00
dm.h dm: remove queue next_ordered workaround for barriers 2009-07-23 20:30:40 +01:00
faulty.c md: Move check for bitmap presence to personality code. 2009-06-18 08:49:23 +10:00
Kconfig Merge branch 'dmaengine' into async-tx-next 2009-09-08 17:55:21 -07:00
linear.c md: report device as congested when suspended 2009-09-23 18:10:29 +10:00
linear.h md/linear: use call_rcu to free obsolete 'conf' structures. 2009-06-18 08:49:42 +10:00
Makefile dm raid1: add userspace log 2009-06-22 10:12:35 +01:00
md.c md: report device as congested when suspended 2009-09-23 18:10:29 +10:00
md.h md: report device as congested when suspended 2009-09-23 18:10:29 +10:00
mktables.c
multipath.c md: remove unnecessary memset from multipath. 2009-09-23 18:16:31 +10:00
multipath.h md: remove mddev_to_conf "helper" macro 2009-06-16 16:54:21 +10:00
raid0.c md: report device as congested when suspended 2009-09-23 18:10:29 +10:00
raid0.h md: remove mddev_to_conf "helper" macro 2009-06-16 16:54:21 +10:00
raid1.c md: raid-1/10: fix RW bits manipulation 2009-09-23 18:20:15 +10:00
raid1.h md: remove mddev_to_conf "helper" macro 2009-06-16 16:54:21 +10:00
raid5.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx into for-linus 2009-09-23 18:31:11 +10:00
raid5.h Merge branch 'dmaengine' into async-tx-next 2009-09-08 17:55:21 -07:00
raid6algos.c
raid6altivec.uc
raid6int.uc
raid6mmx.c
raid6recov.c
raid6sse1.c
raid6sse2.c
raid6x86.h
raid10.c md: raid-1/10: fix RW bits manipulation 2009-09-23 18:20:15 +10:00
raid10.h md: remove mddev_to_conf "helper" macro 2009-06-16 16:54:21 +10:00
unroll.pl