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ec22ba8edb
linux-next/fs/ext4
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Dmitry Monakhov ec22ba8edb ext4: disable merging of uninitialized extents 
Derived from Jan's patch:http://permalink.gmane.org/gmane.comp.file-systems.ext4/36470

Merging of uninitialized extents creates all sorts of interesting race
possibilities when writeback / DIO races with fallocate. Thus
ext4_convert_unwritten_extents_endio() has to deal with a case where
extent to be converted needs to be split out first. That isn't nice
for two reasons:

1) It may need allocation of extent tree block so ENOSPC is possible.
2) It complicates end_io handling code

So we disable merging of uninitialized extents which allows us to simplify
the code. Extents will get merged after they are converted to initialized
ones.

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
2013-03-04 00:36:06 -05:00
..
acl.c ext4: fix the number of credits needed for acl ops with inline data 2013-02-09 15:23:03 -05:00
acl.h fs: take the ACL checks to common code 2011-07-25 14:30:23 -04:00
balloc.c ext4: convert number of blocks to clusters properly 2013-03-02 17:18:58 -05:00
bitmap.c ext4: Checksum the block bitmap properly with bigalloc enabled 2012-10-22 00:34:32 -04:00
block_validity.c ext2/3/4: delete unneeded includes of module.h 2012-01-09 13:52:10 +01:00
dir.c ext4: fix a warning from sparse check for ext4_dir_llseek 2013-03-02 17:24:05 -05:00
ext4_extents.h ext4: remove single extent cache 2013-02-18 00:31:07 -05:00
ext4_jbd2.c ext4: pass context information to jbd2__journal_start() 2013-02-08 21:59:22 -05:00
ext4_jbd2.h ext4: fix the number of credits needed for acl ops with inline data 2013-02-09 15:23:03 -05:00
ext4.h ext4: use percpu counter for extent cache count 2013-03-02 10:27:46 -05:00
extents_status.c ext4: use percpu counter for extent cache count 2013-03-02 10:27:46 -05:00
extents_status.h ext4: fix extent status tree regression for file systems > 512GB 2013-02-27 14:54:37 -05:00
extents.c ext4: disable merging of uninitialized extents 2013-03-04 00:36:06 -05:00
file.c ext4: rename and improbe ext4_es_find_extent() 2013-02-18 00:27:26 -05:00
fsync.c ext4: fix an incorrect comment about i_mutex 2012-12-25 13:31:52 -05:00
hash.c ext4: reduce one "if" comparison in ext4_dirhash() 2013-02-01 22:33:21 -05:00
ialloc.c ext4: use KERN_WARNING for warning messages 2013-02-14 15:11:41 -05:00
indirect.c ext4: pass context information to jbd2__journal_start() 2013-02-08 21:59:22 -05:00
inline.c ext4: pass context information to jbd2__journal_start() 2013-02-08 21:59:22 -05:00
inode.c ext4: lookup block mapping in extent status tree 2013-02-18 00:29:59 -05:00
ioctl.c ext4: pass context information to jbd2__journal_start() 2013-02-08 21:59:22 -05:00
Kconfig ext4: fix configuration dependencies for ext4 ACLs and security labels 2013-01-06 23:38:44 -05:00
Makefile ext4: Remove CONFIG_EXT4_FS_XATTR 2012-12-10 16:30:43 -05:00
mballoc.c ext4: convert number of blocks to clusters properly 2013-03-02 17:18:58 -05:00
mballoc.h ext4: use module parameters instead of debugfs for mballoc_debug 2013-02-09 16:28:20 -05:00
migrate.c ext4: fix the number of credits needed for ext4_ext_migrate() 2013-02-09 12:50:27 -05:00
mmp.c ext4: use unlikely to improve the efficiency of the kernel 2013-01-12 16:28:47 -05:00
move_extent.c ext4: remove single extent cache 2013-02-18 00:31:07 -05:00
namei.c ext4: use ERR_PTR() abstraction for ext4_append() 2013-02-15 03:35:57 -05:00
page-io.c ext4: fix possible use-after-free with AIO 2013-01-29 22:48:17 -05:00
resize.c ext4: convert number of blocks to clusters properly 2013-03-02 17:18:58 -05:00
super.c ext4: enable quotas before orphan cleanup 2013-03-02 18:22:38 -05:00
symlink.c ext4: Remove CONFIG_EXT4_FS_XATTR 2012-12-10 16:30:43 -05:00
truncate.h ext4: move common truncate functions to header file 2011-06-27 19:16:04 -04:00
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: fix xattr block allocation/release with bigalloc 2013-02-18 12:12:07 -05:00
xattr.h ext4: fix the number of credits needed for acl ops with inline data 2013-02-09 15:23:03 -05:00