Chris Mason 257c62e1bc Btrfs: avoid tree log commit when there are no changes ... rpm has a habit of running fdatasync when the file hasn't changed. We already detect if a file hasn't been changed in the current transaction but it might have been sent to the tree-log in this transaction and not changed since the last call to fsync. In this case, we want to avoid a tree log sync, which includes a number of synchronous writes and barriers. This commit extends the existing tracking of the last transaction to change a file to also track the last sub-transaction. The end result is that rpm -ivh and -Uvh are roughly twice as fast, and on par with ext3. Signed-off-by: Chris Mason <chris.mason@oracle.com>		2009-10-13 13:35:12 -04:00
..
acl.c	Btrfs: Use CONFIG_BTRFS_POSIX_ACL to enable ACL code	2009-09-29 13:51:05 -04:00
async-thread.c	Btrfs: fix deadlock on async thread startup	2009-10-05 09:44:45 -04:00
async-thread.h	Btrfs: fix deadlock on async thread startup	2009-10-05 09:44:45 -04:00
btrfs_inode.h	Btrfs: avoid tree log commit when there are no changes	2009-10-13 13:35:12 -04:00
compat.h	Btrfs: drop remaining LINUX_KERNEL_VERSION checks and compat code	2009-01-06 09:38:55 -05:00
compression.c	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable	2009-09-11 19:07:25 -04:00
compression.h	Btrfs: Add zlib compression support	2008-10-29 14:49:59 -04:00
ctree.c	Btrfs: check size of inode backref before adding hardlink	2009-09-24 09:17:31 -04:00
ctree.h	Btrfs: avoid tree log commit when there are no changes	2009-10-13 13:35:12 -04:00
delayed-ref.c	Btrfs: Mixed back reference (FORWARD ROLLING FORMAT CHANGE)	2009-06-10 11:29:46 -04:00
delayed-ref.h	Btrfs: Mixed back reference (FORWARD ROLLING FORMAT CHANGE)	2009-06-10 11:29:46 -04:00
dir-item.c	Btrfs: change how subvolumes are organized	2009-09-21 15:56:00 -04:00
disk-io.c	Btrfs: avoid tree log commit when there are no changes	2009-10-13 13:35:12 -04:00
disk-io.h	Btrfs: leave btree locks spinning more often	2009-03-24 16:14:28 -04:00
export.c	Btrfs: add snapshot/subvolume destroy ioctl	2009-09-21 16:00:26 -04:00
export.h	NFS support for btrfs - v3	2008-09-25 11:04:06 -04:00
extent_io.c	Btrfs: release delalloc reservations on extent item insertion	2009-10-08 15:21:10 -04:00
extent_io.h	Btrfs: release delalloc reservations on extent item insertion	2009-10-08 15:21:10 -04:00
extent_map.c	Btrfs: search for an allocation hint while filling file COW	2009-09-18 16:08:52 -04:00
extent_map.h	Btrfs: search for an allocation hint while filling file COW	2009-09-18 16:08:52 -04:00
extent-tree.c	Btrfs: optimize back reference update during btrfs_drop_snapshot	2009-10-09 09:25:16 -04:00
file-item.c	Btrfs: leave btree locks spinning more often	2009-03-24 16:14:28 -04:00
file.c	Btrfs: avoid tree log commit when there are no changes	2009-10-13 13:35:12 -04:00
free-space-cache.c	Btrfs: fix extent entry threshold calculation	2009-09-21 19:23:50 -04:00
free-space-cache.h	Btrfs: use hybrid extents+bitmap rb tree for free space	2009-07-24 09:23:30 -04:00
hash.h	Btrfs: remove crc32c.h and use libcrc32c directly.	2009-06-10 11:29:53 -04:00
inode-item.c	Btrfs: check size of inode backref before adding hardlink	2009-09-24 09:17:31 -04:00
inode-map.c	Btrfs: do not reuse objectid of deleted snapshot/subvol	2009-09-21 15:56:00 -04:00
inode.c	Btrfs: avoid tree log commit when there are no changes	2009-10-13 13:35:12 -04:00
ioctl.c	Btrfs: fix file clone ioctl for bookend extents	2009-10-09 11:29:53 -04:00
ioctl.h	Btrfs: add snapshot/subvolume destroy ioctl	2009-09-21 16:00:26 -04:00
Kconfig	Btrfs: make btrfs acls selectable	2009-02-04 09:28:28 -05:00
locking.c	Btrfs: fix typos in comments	2009-04-02 16:46:06 -04:00
locking.h	Btrfs: fix spinlock assertions on UP systems	2009-03-09 11:45:38 -04:00
Makefile	Btrfs: Mixed back reference (FORWARD ROLLING FORMAT CHANGE)	2009-06-10 11:29:46 -04:00
ordered-data.c	Btrfs: release delalloc reservations on extent item insertion	2009-10-08 15:21:10 -04:00
ordered-data.h	Btrfs: Use PagePrivate2 to track pages in the data=ordered code.	2009-09-11 13:31:07 -04:00
orphan.c	Btrfs: change how subvolumes are organized	2009-09-21 15:56:00 -04:00
print-tree.c	Btrfs: remove of redundant btrfs_header_level	2009-07-22 16:52:13 -04:00
print-tree.h	Btrfs: Create extent_buffer interface for large blocksizes	2008-09-25 11:03:56 -04:00
ref-cache.c	Btrfs: Make btrfs_drop_snapshot work in larger and more efficient chunks	2009-02-04 09:27:02 -05:00
ref-cache.h	Btrfs: Make btrfs_drop_snapshot work in larger and more efficient chunks	2009-02-04 09:27:02 -05:00
relocation.c	Btrfs: fix deadlock on async thread startup	2009-10-05 09:44:45 -04:00
root-tree.c	Btrfs: add snapshot/subvolume destroy ioctl	2009-09-21 16:00:26 -04:00
struct-funcs.c	Btrfs: Fix checkpatch.pl warnings	2009-01-05 21:25:51 -05:00
super.c	Btrfs: Fix setting umask when POSIX ACLs are not enabled	2009-09-29 13:51:04 -04:00
sysfs.c	Btrfs: Fix checkpatch.pl warnings	2009-01-05 21:25:51 -05:00
transaction.c	Btrfs: proper -ENOSPC handling	2009-09-28 16:29:42 -04:00
transaction.h	Btrfs: avoid tree log commit when there are no changes	2009-10-13 13:35:12 -04:00
tree-defrag.c	Btrfs: do extent allocation and reference count updates in the background	2009-03-24 16:14:25 -04:00
tree-log.c	Btrfs: avoid tree log commit when there are no changes	2009-10-13 13:35:12 -04:00
tree-log.h	Btrfs: avoid tree log commit when there are no changes	2009-10-13 13:35:12 -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: introduce missing kfree	2009-09-29 13:51:04 -04:00
volumes.h	Btrfs: make balance code choose more wisely when relocating	2009-09-21 19:23:48 -04:00
xattr.c	Btrfs: Use CONFIG_BTRFS_POSIX_ACL to enable ACL code	2009-09-29 13:51:05 -04:00
xattr.h	Btrfs: selinux support	2009-02-04 09:29:13 -05:00
zlib.c	Btrfs: correct error-handling zlib error handling	2009-08-07 13:51:33 -04:00