Josef Bacik 3173a18f70 Btrfs: add a incompatible format change for smaller metadata extent refs ... We currently store the first key of the tree block inside the reference for the tree block in the extent tree. This takes up quite a bit of space. Make a new key type for metadata which holds the level as the offset and completely removes storing the btrfs_tree_block_info inside the extent ref. This reduces the size from 51 bytes to 33 bytes per extent reference for each tree block. In practice this results in a 30-35% decrease in the size of our extent tree, which means we COW less and can keep more of the extent tree in memory which makes our heavy metadata operations go much faster. This is not an automatic format change, you must enable it at mkfs time or with btrfstune. This patch deals with having metadata stored as either the old format or the new format so it is easy to convert. Thanks, Signed-off-by: Josef Bacik <jbacik@fusionio.com>		2013-05-06 15:54:18 -04:00
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acl.c
async-thread.c
async-thread.h
backref.c	Btrfs: fix backref walking race with tree deletions	2013-02-26 11:00:50 -05:00
backref.h	Btrfs: move fs/btrfs/ioctl.h to include/uapi/linux/btrfs.h	2013-02-20 09:37:28 -05:00
btrfs_inode.h	Btrfs: serialize unlocked dio reads with truncate	2013-02-20 12:59:47 -05:00
check-integrity.c	btrfs: define BTRFS_MAGIC as a u64 value	2013-02-20 13:00:01 -05:00
check-integrity.h
compat.h
compression.c	Btrfs: cleanup unused arguments of btrfs_csum_data	2013-05-06 15:54:14 -04:00
compression.h
ctree.c	Btrfs: add a incompatible format change for smaller metadata extent refs	2013-05-06 15:54:18 -04:00
ctree.h	Btrfs: add a incompatible format change for smaller metadata extent refs	2013-05-06 15:54:18 -04:00
delayed-inode.c	Btrfs: improve the delayed inode throttling	2013-03-07 07:52:40 -05:00
delayed-inode.h	Btrfs: improve the delayed inode throttling	2013-03-07 07:52:40 -05:00
delayed-ref.c	Btrfs: make delayed ref lock logic more readable	2013-02-20 09:36:41 -05:00
delayed-ref.h	Merge branch 'raid56-experimental' into for-linus-3.9	2013-02-20 14:06:05 -05:00
dev-replace.c	Btrfs: check the return value of btrfs_start_delalloc_inodes()	2013-02-20 09:37:21 -05:00
dev-replace.h
dir-item.c	Btrfs: fix hash overflow handling	2012-12-17 14:48:21 -05:00
disk-io.c	Btrfs: add a incompatible format change for smaller metadata extent refs	2013-05-06 15:54:18 -04:00
disk-io.h	Btrfs: cleanup unused arguments of btrfs_csum_data	2013-05-06 15:54:14 -04:00
export.c	fs: encode_fh: return FILEID_INVALID if invalid fid_type	2013-02-26 02:46:10 -05:00
export.h
extent-tree.c	Btrfs: add a incompatible format change for smaller metadata extent refs	2013-05-06 15:54:18 -04:00
extent_io.c	Btrfs: fix race between mmap writes and compression	2013-03-26 13:19:14 -04:00
extent_io.h	Btrfs: fix race between mmap writes and compression	2013-03-26 13:19:14 -04:00
extent_map.c	btrfs: fixup/remove module.h usage as required	2013-03-01 15:01:01 -05:00
extent_map.h	Btrfs: do not allow logged extents to be merged or removed	2013-01-24 12:49:48 -05:00
file-item.c	Btrfs: cleanup unused arguments of btrfs_csum_data	2013-05-06 15:54:14 -04:00
file.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2013-03-29 11:13:25 -07:00
free-space-cache.c	Btrfs: cleanup unused arguments of btrfs_csum_data	2013-05-06 15:54:14 -04:00
free-space-cache.h	Btrfs: add some free space cache tests	2013-05-06 15:52:54 -04:00
hash.h
inode-item.c
inode-map.c
inode-map.h
inode.c	Btrfs: add a incompatible format change for smaller metadata extent refs	2013-05-06 15:54:18 -04:00
ioctl.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2013-03-08 17:33:20 -08:00
Kconfig	Btrfs: add some free space cache tests	2013-05-06 15:52:54 -04:00
locking.c	Btrfs: save us a read_lock	2013-02-20 09:37:17 -05:00
locking.h	Btrfs: remove btrfs_try_spin_lock	2013-03-14 14:57:10 -04:00
lzo.c
Makefile	Btrfs: RAID5 and RAID6	2013-02-01 14:24:23 -05:00
math.h
ordered-data.c	Btrfs: hold the ordered operations mutex when waiting on ordered extents	2013-03-28 09:51:28 -04:00
ordered-data.h	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/josef/btrfs-next into for-linus-3.9	2013-02-20 14:05:45 -05:00
orphan.c
print-tree.c	btrfs: add missing break in btrfs_print_leaf()	2013-02-20 12:59:20 -05:00
print-tree.h
qgroup.c	Btrfs: fix double free in the btrfs_qgroup_account_ref()	2013-03-28 09:51:29 -04:00
raid56.c	btrfs/raid56: Add missing #include <linux/vmalloc.h>	2013-03-03 06:53:41 -05:00
raid56.h	Btrfs: RAID5 and RAID6	2013-02-01 14:24:23 -05:00
rcu-string.h
reada.c
relocation.c	Btrfs: add a incompatible format change for smaller metadata extent refs	2013-05-06 15:54:18 -04:00
root-tree.c	Btrfs: rename root_times_lock to root_item_lock	2012-12-16 20:46:21 -05:00
scrub.c	Btrfs: add a incompatible format change for smaller metadata extent refs	2013-05-06 15:54:18 -04:00
send.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2013-03-29 11:13:25 -07:00
send.h	btrfs: add "no file data" flag to btrfs send ioctl	2013-02-20 12:59:39 -05:00
struct-funcs.c
super.c	btrfs: clean up transaction abort messages	2013-05-06 15:52:56 -04:00
sysfs.c	btrfs: fixup/remove module.h usage as required	2013-03-01 15:01:01 -05:00
transaction.c	btrfs: clean up transaction abort messages	2013-05-06 15:52:56 -04:00
transaction.h	Btrfs: fix wrong reserved space in qgroup during snap/subv creation	2013-02-28 13:33:54 -05:00
tree-defrag.c	btrfs: remove cache only arguments from defrag path	2013-02-20 12:59:36 -05:00
tree-log.c	Btrfs: make sure nbytes are right after log replay	2013-04-13 07:35:06 -04:00
tree-log.h
ulist.c	btrfs: fixup/remove module.h usage as required	2013-03-01 15:01:01 -05:00
ulist.h
version.h
volumes.c	Btrfs: handle a bogus chunk tree nicely	2013-03-21 19:24:31 -04:00
volumes.h	Merge branch 'raid56-experimental' into for-linus-3.9	2013-02-20 14:06:05 -05:00
xattr.c	Btrfs: only log the inode item if we can get away with it	2012-12-16 20:46:21 -05:00
xattr.h
zlib.c