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7869a4a6c5
linux/fs/ext4
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Theodore Ts'o 7869a4a6c5 ext4: add support for extent pre-caching 
Add a new fiemap flag which forces the all of the extents in an inode
to be cached in the extent_status tree.  This is critically important
when using AIO to a preallocated file, since if we need to read in
blocks from the extent tree, the io_submit(2) system call becomes
synchronous, and the AIO is no longer "A", which is bad.

In addition, for most files which have an external leaf tree block,
the cost of caching the information in the extent status tree will be
less than caching the entire 4k block in the buffer cache.  So it is
generally a win to keep the extent information cached.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2013-08-16 22:05:14 -04:00
..
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: fix ext4_get_group_number() 2013-07-05 23:11:16 -04:00
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 [readdir] convert ext4 2013-06-29 12:56:40 +04:00
ext4_extents.h ext4: mext_insert_extents should update extent block checksum 2013-04-19 14:04:12 -04:00
ext4_jbd2.c jbd2: Fix use after free after error in jbd2_journal_dirty_metadata() 2013-08-12 09:53:28 -04:00
ext4_jbd2.h ext4: use transaction reservation for extent conversion in ext4_end_io 2013-06-04 13:21:11 -04:00
ext4.h ext4: add support for extent pre-caching 2013-08-16 22:05:14 -04:00
extents_status.c ext4: add support for extent pre-caching 2013-08-16 22:05:14 -04:00
extents_status.h ext4: cache all of an extent tree's leaf block upon reading 2013-08-16 21:23:41 -04:00
extents.c ext4: add support for extent pre-caching 2013-08-16 22:05:14 -04:00
file.c jbd2: Fix oops in jbd2_journal_file_inode() 2013-08-16 21:19:41 -04:00
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: make sure group number is bumped after a inode allocation race 2013-07-26 15:15:46 -04:00
indirect.c ext4: translate flag bits to strings in tracepoints 2013-07-01 08:12:40 -04:00
inline.c Lots of bug fixes, cleanups and optimizations. In the bug fixes 2013-07-02 09:39:34 -07:00
inode.c ext4: use unsigned int for es_status values 2013-08-16 21:22:41 -04:00
ioctl.c ext4: add support for extent pre-caching 2013-08-16 22:05:14 -04:00
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: don't allow ext4_free_blocks() to fail due to ENOMEM 2013-07-13 00:40:35 -04:00
mballoc.h ext4: use module parameters instead of debugfs for mballoc_debug 2013-02-09 16:28:20 -05:00
migrate.c ext4: cache all of an extent tree's leaf block upon reading 2013-08-16 21:23:41 -04:00
mmp.c ext4: mark all metadata I/O with REQ_META 2013-04-20 15:46:17 -04:00
move_extent.c ext4: cache all of an extent tree's leaf block upon reading 2013-08-16 21:23:41 -04:00
namei.c ext4: fix a BUG when opening a file with O_TMPFILE flag 2013-07-20 21:58:38 -04:00
page-io.c ext4: rate limit printk in buffer_io_error() 2013-07-11 22:42:42 -04:00
resize.c ext4: fix corruption when online resizing a fs with 1K block size 2013-07-01 08:12:08 -04:00
super.c ext4: fix mount/remount error messages for incompatible mount options 2013-08-08 23:02:24 -04:00
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 miscellaneous big endian warnings 2013-04-09 23:59:55 -04:00
xattr.h ext4: reserve xattr index for Rich ACL support 2013-04-18 14:53:15 -04:00