Dmitry Monakhov 14516bb7bb ext4: fix suboptimal seek_{data,hole} extents traversial ...

It is ridiculous practice to scan inode block by block, this technique
applicable only for old indirect files. This takes significant amount
of time for really large files. Let's reuse ext4_fiemap which already
traverse inode-tree in most optimal meaner.

TESTCASE:
ftruncate64(fd, 0);
ftruncate64(fd, 1ULL << 40);
/* lseek will spin very long time */
lseek64(fd, 0, SEEK_DATA);
lseek64(fd, 0, SEEK_HOLE);

Original report: https://lkml.org/lkml/2014/10/16/620

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

2014-12-02 18:08:53 -05:00

..

acl.c

ext2/3/4: use generic posix ACL infrastructure

2014-01-25 23:58:19 -05:00

acl.h

ext2/3/4: use generic posix ACL infrastructure

2014-01-25 23:58:19 -05:00

balloc.c

ext4: move error report out of atomic context in ext4_init_block_bitmap()

2014-10-13 03:42:12 -04:00

bitmap.c

ext4: Replace open coded mdata csum feature to helper function

2014-10-13 03:36:16 -04:00

block_validity.c

fs/ext4: use rbtree postorder iteration helper instead of opencoding

2014-01-23 16:37:03 -08:00

dir.c

ext4: convert ext4_bread() to use the ERR_PTR convention

2014-08-29 20:52:15 -04:00

ext4_extents.h

ext4: teach ext4_ext_find_extent() to realloc path if necessary

2014-09-01 14:40:09 -04:00

ext4_jbd2.c

ext4: fix over-defensive complaint after journal abort

2014-10-01 22:23:15 -04:00

ext4_jbd2.h

ext4: don't use MAXQUOTAS value

2014-09-11 11:15:15 -04:00

ext4.h

ext4: ext4_inline_data_fiemap should respect callers argument

2014-12-02 16:11:20 -05:00

extents_status.c

ext4: introduce aging to extent status tree

2014-11-25 11:55:24 -05:00

extents_status.h

ext4: introduce aging to extent status tree

2014-11-25 11:55:24 -05:00

extents.c

ext4: fix suboptimal seek_{data,hole} extents traversial

2014-12-02 18:08:53 -05:00

file.c

ext4: fix suboptimal seek_{data,hole} extents traversial

2014-12-02 18:08:53 -05:00

fsync.c

ext4: Fix fsync error handling after filesystem abort

2013-06-12 22:38:04 -04:00

hash.c

ext4: reduce one "if" comparison in ext4_dirhash()

2013-02-01 22:33:21 -05:00

ialloc.c

ext4: fix oops when loading block bitmap failed

2014-10-30 10:53:16 -04:00

indirect.c

ext4: prepare to drop EXT4_STATE_DELALLOC_RESERVED

2014-09-04 18:07:25 -04:00

inline.c

ext4: ext4_inline_data_fiemap should respect callers argument

2014-12-02 16:11:20 -05:00

inode.c

ext4: update comments regarding ext4_delete_inode()

2014-11-25 16:17:29 -05:00

ioctl.c

ext4: move handling of list of shrinkable inodes into extent status code

2014-11-25 11:49:25 -05:00

Kconfig

ext4: fix Kconfig documentation for CONFIG_EXT4_DEBUG

2013-04-21 20:32:03 -04:00

Makefile

ext4: Remove CONFIG_EXT4_FS_XATTR

2012-12-10 16:30:43 -05:00

mballoc.c

ext4: Remove an unnecessary check for NULL before iput()

2014-11-25 20:01:37 -05:00

mballoc.h

ext4: remove unused ac_ex_scanned

2014-02-20 13:32:10 -05:00

migrate.c

ext4: update comments regarding ext4_delete_inode()

2014-11-25 16:17:29 -05:00

mmp.c

ext4: Replace open coded mdata csum feature to helper function

2014-10-13 03:36:16 -04:00

move_extent.c

ext4: move_extent improve bh vanishing success factor

2014-11-05 11:52:38 -05:00

namei.c

ext4: remove unneeded code in ext4_unlink

2014-11-25 16:34:38 -05:00

page-io.c

Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

2014-06-08 13:03:35 -07:00

resize.c

ext4: kill ext4_kvfree()

2014-11-20 12:19:11 -05:00

super.c

ext4: forbid journal_async_commit in data=ordered mode

2014-11-25 20:19:17 -05:00

symlink.c

ext4: Remove CONFIG_EXT4_FS_XATTR

2012-12-10 16:30:43 -05:00

truncate.h

…

xattr_security.c

Merge branch 'for_linus' into for_linus_merged

2012-01-10 11:54:07 -05:00

xattr_trusted.c

ext2/3/4: delete unneeded includes of module.h

2012-01-09 13:52:10 +01:00

xattr_user.c

ext2/3/4: delete unneeded includes of module.h

2012-01-09 13:52:10 +01:00

xattr.c

ext4: Replace open coded mdata csum feature to helper function

2014-10-13 03:36:16 -04:00

xattr.h

ext4: each filesystem creates and uses its own mb_cache

2014-03-18 19:24:49 -04:00