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f7d0d3797f
linux/fs/ext4
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Allison Henderson f7d0d3797f ext4: punch hole optimizations: skip un-needed extent lookup 
This patch optimizes the punch hole operation by skipping the
tree walking code that is used by truncate.  Since punch hole
is done through map blocks, the path to the extent is already
known in this function, so we do not need to look it up again.

Signed-off-by: Allison Henderson <achender@linux.vnet.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-07-17 23:17:02 -04:00
..
acl.c userns: rename is_owner_or_cap to inode_owner_or_capable 2011-03-23 19:47:13 -07:00
acl.h fs: provide rcu-walk aware permission i_ops 2011-01-07 17:50:29 +11:00
balloc.c ext4: refactor duplicated block placement code 2011-06-28 10:01:31 -04:00
bitmap.c ext4: Change unsigned long to unsigned int 2008-11-05 00:14:04 -05:00
block_validity.c ext4: move ext4_ind_* functions from inode.c to indirect.c 2011-06-27 19:40:50 -04:00
dir.c ext4: Use ext4_error_file() to print the pathname to the corrupted inode 2011-01-10 12:10:55 -05:00
ext4_extents.h ext4: use FIEMAP_EXTENT_LAST flag for last extent in fiemap 2011-06-06 00:06:52 -04:00
ext4_jbd2.c ext4: remove unneeded ext4_journal_get_undo_access 2011-05-09 10:58:45 -04:00
ext4_jbd2.h ext4: remove unneeded ext4_journal_get_undo_access 2011-05-09 10:58:45 -04:00
ext4.h ext4: Speed up FITRIM by recording flags in ext4_group_info 2011-07-11 00:03:38 -04:00
extents.c ext4: punch hole optimizations: skip un-needed extent lookup 2011-07-17 23:17:02 -04:00
file.c ext4: Convert ext4 to new truncate calling convention 2011-05-25 17:39:48 -04:00
fsync.c ext4: fix waiting and sending of a barrier in ext4_sync_file() 2011-05-24 12:00:54 -04:00
hash.c ext4: Add support for non-native signed/unsigned htree hash algorithms 2008-10-28 13:21:44 -04:00
ialloc.c Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 2011-03-25 09:57:41 -07:00
indirect.c ext4: refactor duplicated block placement code 2011-06-28 10:01:31 -04:00
inode.c ext4: move ext4_ind_* functions from inode.c to indirect.c 2011-06-27 19:40:50 -04:00
ioctl.c Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 2011-03-25 09:57:41 -07:00
Kconfig ext4: Don't ask about supporting ext2/3 in ext4 if ext4 is not configured 2009-12-21 10:54:09 -05:00
Makefile ext4: move ext4_ind_* functions from inode.c to indirect.c 2011-06-27 19:40:50 -04:00
mballoc.c ext4: make the preallocation size be a multiple of stripe size 2011-07-17 21:11:30 -04:00
mballoc.h ext4: remove alloc_semp 2011-05-09 21:52:36 -04:00
migrate.c ext4: set extents flag when migrating file to use extents 2011-05-03 09:34:42 -04:00
mmp.c ext4: add support for multiple mount protection 2011-05-24 18:31:25 -04:00
move_extent.c ext4: Fix max file size and logical block counting of extent format file 2011-06-06 00:05:17 -04:00
namei.c ext4: fix compilation with -DDX_DEBUG 2011-07-16 19:41:23 -04:00
page-io.c ext4: remove loop around bio_alloc() 2011-06-29 21:44:45 -04:00
resize.c ext4: unify the ext4_handle_release_buffer() api 2011-03-20 22:57:02 -04:00
super.c ext4: ignore a stripe width of 1 2011-07-17 21:18:51 -04:00
symlink.c ext4: symlink must be handled via filesystem specific operation 2010-05-16 02:00:00 -04:00
truncate.h ext4: move common truncate functions to header file 2011-06-27 19:16:04 -04:00
xattr_security.c fs/vfs/security: pass last path component to LSM on inode creation 2011-02-01 11:12:29 -05:00
xattr_trusted.c ext4: constify xattr_handler 2010-05-21 18:31:19 -04:00
xattr_user.c ext4: constify xattr_handler 2010-05-21 18:31:19 -04:00
xattr.c ext4: add flag to ext4_has_free_blocks 2011-05-25 07:41:26 -04:00
xattr.h fs/vfs/security: pass last path component to LSM on inode creation 2011-02-01 11:12:29 -05:00