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749fefe6778e98dfefe3b8bb72a93875196ec554
linux/fs
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Martin K. Petersen 4363ac7c13 block: Implement support for WRITE SAME 
The WRITE SAME command supported on some SCSI devices allows the same
block to be efficiently replicated throughout a block range. Only a
single logical block is transferred from the host and the storage device
writes the same data to all blocks described by the I/O.

This patch implements support for WRITE SAME in the block layer. The
blkdev_issue_write_same() function can be used by filesystems and block
drivers to replicate a buffer across a block range. This can be used to
efficiently initialize software RAID devices, etc.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2012-09-20 14:31:45 +02:00
..
9p
9p: Push file_update_time() into v9fs_vm_page_mkwrite()
2012-07-31 01:02:46 +04:00
adfs
stop passing nameidata to ->lookup()
2012-07-14 16:34:32 +04:00
affs
affs: use memweight()
2012-07-30 17:25:16 -07:00
afs
VFS: Pass mount flags to sget()
2012-07-14 16:38:34 +04:00
autofs4
autofs4 - fix expire check
2012-08-17 06:56:39 -07:00
befs
stop passing nameidata to ->lookup()
2012-07-14 16:34:32 +04:00
bfs
don't pass nameidata to ->create()
2012-07-14 16:34:47 +04:00
btrfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
2012-08-29 11:36:22 -07:00
cachefiles
fs: cachefiles: add support for large files in filesystem caching
2012-07-30 17:25:21 -07:00
ceph
ceph: avoid divide by zero in __validate_layout()
2012-08-21 15:55:28 -07:00
cifs
CIFS: Fix cifs_do_create error hadnling
2012-08-19 22:30:18 -05:00
coda
don't pass nameidata to ->create()
2012-07-14 16:34:47 +04:00
configfs
stop passing nameidata to ->lookup()
2012-07-14 16:34:32 +04:00
cramfs
stop passing nameidata to ->lookup()
2012-07-14 16:34:32 +04:00
debugfs
Merge tag 'driver-core-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2012-07-26 11:25:33 -07:00
devpts
VFS: Pass mount flags to sget()
2012-07-14 16:38:34 +04:00
dlm
dlm: fix missing dir remove
2012-07-16 14:24:43 -05:00
ecryptfs
Merge tag 'ecryptfs-3.6-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs
2012-08-02 10:56:34 -07:00
efs
stop passing nameidata to ->lookup()
2012-07-14 16:34:32 +04:00
exofs
block: Add bio_clone_bioset(), bio_clone_kmalloc()
2012-09-09 10:35:39 +02:00
exportfs
switch dentry_open() to struct path, make it grab references itself
2012-07-23 00:01:29 +04:00
ext2
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-08-01 10:26:23 -07:00
ext3
ext3: nuke write_super from comments
2012-08-04 12:15:32 +04:00
ext4
Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
2012-08-17 08:04:47 -07:00
fat
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-08-01 10:26:23 -07:00
freevxfs
stop passing nameidata to ->lookup()
2012-07-14 16:34:32 +04:00
fscache
…
fuse
Merge branch 'vfs-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
2012-08-18 10:02:17 -07:00
gfs2
gfs2: nuke pdflush from comments
2012-08-04 12:15:40 +04:00
hfs
hfs: nuke write_super from comments
2012-08-04 12:15:38 +04:00
hfsplus
hfsplus: use -ENOMEM when kzalloc() fails
2012-07-30 17:25:19 -07:00
hostfs
don't pass nameidata to ->create()
2012-07-14 16:34:47 +04:00
hpfs
don't pass nameidata to ->create()
2012-07-14 16:34:47 +04:00
hppfs
switch dentry_open() to struct path, make it grab references itself
2012-07-23 00:01:29 +04:00
hugetlbfs
hugetlb: use mmu_gather instead of a temporary linked list for accumulating pages
2012-07-31 18:42:40 -07:00
isofs
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2012-07-24 17:40:44 -07:00
jbd
jbd: don't write superblock when unmounting an ro filesystem
2012-08-15 13:53:30 +02:00
jbd2
Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
2012-08-17 08:04:47 -07:00
jffs2
don't expose I_NEW inodes via dentry->d_inode
2012-07-23 00:00:58 +04:00
jfs
don't expose I_NEW inodes via dentry->d_inode
2012-07-23 00:00:58 +04:00
lockd
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-08-01 10:26:23 -07:00
logfs
Merge tag 'for-linus' of git://github.com/prasad-joshi/logfs_upstream
2012-08-26 10:14:11 -07:00
minix
minixfs: fix block limit check
2012-07-30 17:25:19 -07:00
ncpfs
don't pass nameidata to ->create()
2012-07-14 16:34:47 +04:00
nfs
NFSv3: Ensure that do_proc_get_root() reports errors correctly
2012-08-20 12:52:42 -04:00
nfs_common
…
nfsd
nfsd4: fix security flavor of NFSv4.0 callback
2012-08-20 18:38:36 -04:00
nilfs2
nilfs2: nuke write_super from comments
2012-08-04 12:15:38 +04:00
nls
nls: fix (and rename) mac NLS table files and config options
2012-06-01 19:51:22 -07:00
notify
switch dentry_open() to struct path, make it grab references itself
2012-07-23 00:01:29 +04:00
ntfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-08-01 10:26:23 -07:00
ocfs2
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-08-01 10:26:23 -07:00
omfs
don't pass nameidata to ->create()
2012-07-14 16:34:47 +04:00
openpromfs
stop passing nameidata to ->lookup()
2012-07-14 16:34:32 +04:00
proc
proc: do not allow negative offsets on /proc/<pid>/environ
2012-07-30 17:25:20 -07:00
pstore
pstore/ram: Make tracing log versioned
2012-07-17 16:48:09 -07:00
qnx4
qnx4fs: use memweight()
2012-07-30 17:25:16 -07:00
qnx6
stop passing nameidata to ->lookup()
2012-07-14 16:34:32 +04:00
quota
quota: Move down dqptr_sem read after initializing default warn[] type at __dquot_alloc_space().
2012-08-15 00:22:57 +02:00
ramfs
don't pass nameidata to ->create()
2012-07-14 16:34:47 +04:00
reiserfs
reiserfs: fix deadlocks with quotas
2012-08-15 00:22:57 +02:00
romfs
stop passing nameidata to ->lookup()
2012-07-14 16:34:32 +04:00
squashfs
stop passing nameidata to ->lookup()
2012-07-14 16:34:32 +04:00
sysfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-08-01 10:26:23 -07:00
sysv
fs/sysv: stop using write_super and s_dirt
2012-07-22 23:58:12 +04:00
ubifs
UBIFS: fix error messages spelling
2012-08-22 17:41:09 +03:00
udf
udf: fix retun value on error path in udf_load_logicalvol
2012-08-15 14:23:23 +02:00
ufs
fs/ufs: get rid of write_super
2012-07-22 23:58:16 +04:00
xfs
xfs: check for possible overflow in xfs_ioc_trim
2012-08-23 14:48:44 -05:00
aio.c
aio: now fput() is OK from interrupt context; get rid of manual delayed __fput()
2012-07-22 23:57:59 +04:00
anon_inodes.c
…
attr.c
notify_change(): check that i_mutex is held
2012-07-14 16:35:42 +04:00
bad_inode.c
don't pass nameidata to ->create()
2012-07-14 16:34:47 +04:00
binfmt_aout.c
…
binfmt_elf_fdpic.c
…
binfmt_elf.c
binfmt_elf: switch elf_map() to vm_mmap/vm_munmap
2012-05-30 21:04:55 -04:00
binfmt_em86.c
…
binfmt_flat.c
binfmt_flat: use vm_munmap, we are missing ->mmap_sem there
2012-05-30 21:04:56 -04:00
binfmt_misc.c
…
binfmt_script.c
…
binfmt_som.c
…
bio-integrity.c
block: Ues bi_pool for bio_integrity_alloc()
2012-09-09 10:35:38 +02:00
bio.c
block: Implement support for WRITE SAME
2012-09-20 14:31:45 +02:00
block_dev.c
fs/block-dev.c:fix performance regression in O_DIRECT writes to md block devices
2012-08-02 09:50:39 +02:00
buffer.c
block: replace __getblk_slow misfix by grow_dev_page fix
2012-08-23 12:17:36 +02:00
char_dev.c
…
compat_binfmt_elf.c
…
compat_ioctl.c
…
compat.c
vfs: missed source of ->f_pos races
2012-08-20 10:11:47 -07:00
dcache.c
__d_unalias() should refuse to move mountpoints
2012-07-14 16:35:15 +04:00
dcookies.c
…
direct-io.c
block: move down direct IO plugging
2012-08-09 15:23:09 +02:00
drop_caches.c
…
eventfd.c
eventfd: change int to __u64 in eventfd_signal()
2012-05-31 17:49:32 -07:00
eventpoll.c
eventpoll: use-after-possible-free in epoll_create1()
2012-08-22 10:26:55 -04:00
exec.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-08-01 10:26:23 -07:00
fcntl.c
c/r: fcntl: add F_GETOWNER_UIDS option
2012-07-30 17:25:21 -07:00
fhandle.c
…
fifo.c
fifo: Do not restart open() if it already found a partner
2012-07-16 08:33:14 -07:00
file_table.c
fs: Add freezing handling to mnt_want_write() / mnt_drop_write()
2012-07-31 09:40:38 +04:00
file.c
…
filesystems.c
…
fs_struct.c
get rid of ->mnt_longterm
2012-07-14 16:32:47 +04:00
fs-writeback.c
mm: prepare for removal of obsolete /proc/sys/vm/nr_pdflush_threads
2012-07-31 18:42:40 -07:00
generic_acl.c
…
inode.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-08-01 10:26:23 -07:00
internal.h
fs: Add freezing handling to mnt_want_write() / mnt_drop_write()
2012-07-31 09:40:38 +04:00
ioctl.c
…
ioprio.c
Merge branch 'for-3.5/core' of git://git.kernel.dk/linux-block
2012-05-30 08:52:42 -07:00
Kconfig
…
Kconfig.binfmt
…
libfs.c
VFS: Pass mount flags to sget()
2012-07-14 16:38:34 +04:00
locks.c
locks: remove unused lm_release_private
2012-08-01 09:01:46 -07:00
Makefile
…
mbcache.c
…
mount.h
get rid of magic in proc_namespace.c
2012-07-14 16:32:48 +04:00
mpage.c
…
namei.c
fs: fix fs/namei.c kernel-doc warnings
2012-08-22 10:30:10 -04:00
namespace.c
fs: Add freezing handling to mnt_want_write() / mnt_drop_write()
2012-07-31 09:40:38 +04:00
no-block.c
…
open.c
vfs: canonicalize create mode in build_open_flags()
2012-08-15 13:01:24 +02:00
pipe.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-08-01 10:26:23 -07:00
pnode.c
VFS: Make clone_mnt()/copy_tree()/collect_mounts() return errors
2012-07-14 16:37:27 +04:00
pnode.h
…
posix_acl.c
…
proc_namespace.c
get rid of magic in proc_namespace.c
2012-07-14 16:32:48 +04:00
read_write.c
vfs: allow custom EOF in generic_file_llseek code
2012-07-23 00:00:15 +04:00
read_write.h
…
readdir.c
switch readdir/getdents to fget_light/fput_light
2012-05-29 23:28:29 -04:00
select.c
posix_types.h: Cleanup stale __NFDBITS and related definitions
2012-07-26 13:36:43 -07:00
seq_file.c
seq_file: Add seq_vprintf function and export it
2012-06-11 13:16:35 +01:00
signalfd.c
switch signalfd4() to fget_light/fput_light
2012-05-29 23:28:30 -04:00
splice.c
fs: Protect write paths by sb_start_write - sb_end_write
2012-07-31 09:45:47 +04:00
stack.c
…
stat.c
…
statfs.c
switch statfs to fget_light/fput_light
2012-05-29 23:28:31 -04:00
super.c
vfs: kill write_super and sync_supers
2012-08-04 01:24:44 +04:00
sync.c
vfs: Avoid unnecessary WB_SYNC_NONE writeback during sys_sync and reorder sync passes
2012-07-22 23:59:01 +04:00
timerfd.c
…
utimes.c
switch utimes() to fget_light/fput_light
2012-05-29 23:28:32 -04:00
xattr_acl.c
…
xattr.c
fs/xattr.c:getxattr(): improve handling of allocation failures
2012-07-30 17:25:11 -07:00