Josef Bacik 1ae3993825 Btrfs: do not use async submit for small DIO io's ... When looking at our DIO performance Chris said that for small IO's doing the async submit stuff tends to be more overhead than it's worth. With this on top of my other fixes I get about a 17-20% speedup doing a sequential dd with 4k IO's. Basically if we don't have to split the bio for the map length it's small enough to be directly submitted, otherwise go back to the async submit. Thanks, Signed-off-by: Josef Bacik <josef@redhat.com>		2011-04-08 13:00:39 -04:00
..
acl.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable	2011-02-07 14:06:18 -08:00
async-thread.c	Btrfs: don't walk around with task->state != TASK_RUNNING	2010-05-25 10:34:58 -04:00
async-thread.h	Btrfs: fix deadlock on async thread startup	2009-10-05 09:44:45 -04:00
btrfs_inode.h	Btrfs: change reserved_extents to an atomic_t	2011-03-17 14:21:18 -04:00
compat.h	Btrfs: drop remaining LINUX_KERNEL_VERSION checks and compat code	2009-01-06 09:38:55 -05:00
compression.c	Btrfs: check return value of btrfs_alloc_path()	2011-03-28 05:37:54 -04:00
compression.h	btrfs: Extract duplicate decompress code	2010-12-22 23:15:50 +08:00
ctree.c	Btrfs: check return value of read_tree_block()	2011-03-28 05:37:37 -04:00
ctree.h	Btrfs: deal with the case that we run out of space in the cache	2011-04-08 13:00:27 -04:00
delayed-ref.c	Btrfs: add initial tracepoint support for btrfs	2011-03-28 05:37:33 -04:00
delayed-ref.h	Btrfs: Integrate metadata reservation with start_transaction	2010-05-25 10:34:50 -04:00
dir-item.c	Btrfs: check return value of btrfs_alloc_path()	2011-03-28 05:37:54 -04:00
disk-io.c	Btrfs: Fix uninitialized root flags for subvolumes	2011-04-05 01:20:24 -04:00
disk-io.h	Btrfs: forced readonly mounts on errors	2011-01-17 15:13:08 -05:00
export.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable	2011-02-07 14:06:18 -08:00
export.h	NFS support for btrfs - v3	2008-09-25 11:04:06 -04:00
extent_io.c	Btrfs: add initial tracepoint support for btrfs	2011-03-28 05:37:33 -04:00
extent_io.h	Btrfs: check items for correctness as we search	2011-03-17 14:21:37 -04:00
extent_map.c	Btrfs: check return value of alloc_extent_map()	2011-02-14 16:21:37 -05:00
extent_map.h	btrfs: Allow to add new compression algorithm	2010-12-22 23:15:45 +08:00
extent-tree.c	Btrfs: fix OOPS of empty filesystem after balance	2011-03-28 05:37:53 -04:00
file-item.c	Btrfs: check return value of btrfs_alloc_path()	2011-03-28 05:37:54 -04:00
file.c	Btrfs: deal with the case that we run out of space in the cache	2011-04-08 13:00:27 -04:00
free-space-cache.c	Btrfs: deal with the case that we run out of space in the cache	2011-04-08 13:00:27 -04:00
free-space-cache.h	Btrfs: add btrfs_trim_fs() to handle FITRIM	2011-03-28 05:37:47 -04:00
hash.h	Btrfs: remove crc32c.h and use libcrc32c directly.	2009-06-10 11:29:53 -04:00
inode-item.c	Btrfs: Integrate metadata reservation with start_transaction	2010-05-25 10:34:50 -04:00
inode-map.c	Btrfs: cleanup some BUG_ON()	2011-03-28 05:37:35 -04:00
inode.c	Btrfs: do not use async submit for small DIO io's	2011-04-08 13:00:39 -04:00
ioctl.c	Btrfs: Fix uninitialized root flags for subvolumes	2011-04-05 01:20:24 -04:00
ioctl.h	Merge branch 'lzo-support' of git://repo.or.cz/linux-btrfs-devel into btrfs-38	2011-01-16 11:25:54 -05:00
Kconfig	btrfs: Add lzo compression support	2010-12-22 23:15:47 +08:00
locking.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
locking.h	Btrfs: fix spinlock assertions on UP systems	2009-03-09 11:45:38 -04:00
lzo.c	Btrfs: Avoid accessing unmapped kernel address	2011-02-16 15:37:58 -05:00
Makefile	btrfs: Add lzo compression support	2010-12-22 23:15:47 +08:00
ordered-data.c	Btrfs: add initial tracepoint support for btrfs	2011-03-28 05:37:33 -04:00
ordered-data.h	btrfs: Allow to add new compression algorithm	2010-12-22 23:15:45 +08:00
orphan.c	Btrfs: fixup return code for btrfs_del_orphan_item	2010-12-09 13:57:15 -05:00
print-tree.c	btrfs: fix missing break in switch phrase	2011-01-28 16:40:37 -05:00
print-tree.h	Btrfs: Create extent_buffer interface for large blocksizes	2008-09-25 11:03:56 -04:00
ref-cache.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
ref-cache.h	Btrfs: use RB_ROOT to intialize rb_trees instead of setting rb_node to NULL	2010-03-08 16:26:50 -05:00
relocation.c	Btrfs: check return value of read_tree_block()	2011-03-28 05:37:37 -04:00
root-tree.c	Btrfs: Fix uninitialized root flags for subvolumes	2011-04-05 01:20:24 -04:00
struct-funcs.c	Btrfs: Fix checkpatch.pl warnings	2009-01-05 21:25:51 -05:00
super.c	Btrfs: fix /proc/mounts info.	2011-04-05 01:19:41 -04:00
sysfs.c	Driver core: Constify struct sysfs_ops in struct kobj_type	2010-03-07 17:04:49 -08:00
transaction.c	Btrfs: only retry transaction reservation once	2011-04-08 13:00:32 -04:00
transaction.h	Btrfs: Add readonly snapshots support	2010-12-23 08:49:17 +08:00
tree-defrag.c	Btrfs: cleanup warnings from gcc 4.6 (nonbugs)	2010-10-29 15:14:37 -04:00
tree-log.c	btrfs: make inode ref log recovery faster	2011-03-28 05:37:48 -04:00
tree-log.h	Btrfs: Metadata ENOSPC handling for tree log	2010-05-25 10:34:53 -04:00
version.h	Update Btrfs files for in-kernel usage	2008-09-25 15:41:59 -04:00
version.sh	Btrfs: Fixes for 2.6.28-rc API changes	2008-11-19 21:17:22 -05:00
volumes.c	Btrfs: fix __btrfs_map_block on 32 bit machines	2011-03-28 05:37:59 -04:00
volumes.h	Btrfs: make btrfs_map_block() return entire free extent for each device of RAID0/1/10/DUP	2011-03-28 05:37:45 -04:00
xattr.c	Btrfs: add checks to verify dir items are correct	2011-03-17 14:21:41 -04:00
xattr.h	btrfs: constify xattr_handler	2010-05-21 18:31:18 -04:00
zlib.c	btrfs: Extract duplicate decompress code	2010-12-22 23:15:50 +08:00