Christoph Hellwig 7b7a8665ed direct-io: Implement generic deferred AIO completions ...

Add support to the core direct-io code to defer AIO completions to user
context using a workqueue.  This replaces opencoded and less efficient
code in XFS and ext4 (we save a memory allocation for each direct IO)
and will be needed to properly support O_(D)SYNC for AIO.

The communication between the filesystem and the direct I/O code requires
a new buffer head flag, which is a bit ugly but not avoidable until the
direct I/O code stops abusing the buffer_head structure for communicating
with the filesystems.

Currently this creates a per-superblock unbound workqueue for these
completions, which is taken from an earlier patch by Jan Kara.  I'm
not really convinced about this use and would prefer a "normal" global
workqueue with a high concurrency limit, but this needs further discussion.

JK: Fixed ext4 part, dynamic allocation of the workqueue.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

2013-09-04 09:23:46 -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

direct-io: Implement generic deferred AIO completions

2013-09-04 09:23:46 -04:00

extents_status.c

ext4: make the extent_status code more robust against ENOMEM failures

2013-07-15 00:12:14 -04:00

extents_status.h

ext4: improve extent cache shrink mechanism to avoid to burn CPU time

2013-07-01 08:12:37 -04:00

extents.c

ext4: fix retry handling in ext4_ext_truncate()

2013-07-29 12:12:56 -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

direct-io: Implement generic deferred AIO completions

2013-09-04 09:23:46 -04:00

ioctl.c

ext4: flush the extent status cache during EXT4_IOC_SWAP_BOOT

2013-08-12 09:29:30 -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: do not convert to indirect with bigalloc enabled

2013-04-11 10:54:46 -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: delete unused variables

2013-06-17 08:56:26 -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

direct-io: Implement generic deferred AIO completions

2013-09-04 09:23:46 -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

direct-io: Implement generic deferred AIO completions

2013-09-04 09:23:46 -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