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Josef Bacik 07127184ef Btrfs: reduce the amount of space needed for truncates 
With btrfs_truncate_inode_items we always return if we have to go to another
leaf, which makes us do our reservation again.  This means we will only ever
modify one leaf at a time, so we only need 1 items worth of slack space.  Also,
since we are deleting we will not be creating nodes as we go down, if anything
we'll be free'ing them as we merge them together, so make a different
calculation for truncate which will only have the worst case useage of COW'ing
the entire path down to the leaf.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
2011-10-19 15:12:37 -04:00
..
acl.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable 2011-08-02 21:14:05 -10:00
async-thread.c
async-thread.h
btrfs_inode.h Btrfs: calculate checksum space correctly 2011-10-19 15:12:31 -04:00
compat.h
compression.c Btrfs: check the nodatasum flag when writing compressed files 2011-08-01 14:30:46 -04:00
compression.h btrfs: rename variables clashing with global function names 2011-05-02 13:57:19 +02:00
ctree.c Btrfs: remove lockdep magic from btrfs_next_leaf 2011-07-27 12:46:47 -04:00
ctree.h Btrfs: reduce the amount of space needed for truncates 2011-10-19 15:12:37 -04:00
delayed-inode.c Btrfs: switch the btrfs tree locks to reader/writer 2011-07-27 12:46:46 -04:00
delayed-inode.h atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
delayed-ref.c btrfs: remove old unused commented out code 2011-05-06 12:34:10 +02:00
delayed-ref.h btrfs: remove all unused functions 2011-05-06 12:34:03 +02:00
dir-item.c Btrfs: remove redundant code for dir item lookup 2011-08-01 14:30:48 -04:00
disk-io.c Btrfs: kill the durable block rsv stuff 2011-10-19 15:12:32 -04:00
disk-io.h Btrfs: make a lockdep class for each root 2011-07-27 12:46:46 -04:00
export.c Merge branch 'ino-alloc' of git://repo.or.cz/linux-btrfs-devel into inode_numbers 2011-05-21 09:27:38 -04:00
export.h NFS support for btrfs - v3 2008-09-25 11:04:06 -04:00
extent-tree.c Btrfs: kill btrfs_truncate_reserve_metadata 2011-10-19 15:12:36 -04:00
extent_io.c Btrfs: skip looking for delalloc if we don't have ->fill_delalloc 2011-10-19 15:12:30 -04:00
extent_io.h Btrfs: remove unused members from struct extent_state 2011-08-01 14:30:50 -04:00
extent_map.c Btrfs: clean up code for merging extent maps 2011-08-01 14:30:50 -04:00
extent_map.h btrfs: drop gfp parameter from alloc_extent_map 2011-05-02 13:57:21 +02:00
file-item.c Btrfs: skip locking if searching the commit root in csum lookup 2011-09-11 10:52:24 -04:00
file.c Btrfs: only reserve space in fallocate if we have to do a preallocate 2011-10-19 15:12:36 -04:00
free-space-cache.c Btrfs: ratelimit the generation printk for the free space cache 2011-10-19 15:12:33 -04:00
free-space-cache.h btrfs: remove all unused functions 2011-05-06 12:34:03 +02:00
hash.h
inode-item.c Btrfs: BUG_ON is deleted from the caller of btrfs_truncate_item & btrfs_extend_item 2011-05-23 13:24:39 -04:00
inode-map.c btrfs: add helper for fs_info->closing 2011-06-04 08:11:22 -04:00
inode-map.h Btrfs: Support reading/writing on disk free ino cache 2011-04-25 16:46:11 +08:00
inode.c Btrfs: reduce the amount of space needed for truncates 2011-10-19 15:12:37 -04:00
ioctl.c Merge branch 'btrfs-3.0' into for-linus 2011-09-20 14:49:29 -04:00
ioctl.h Btrfs: add mount -o auto_defrag 2011-05-26 17:52:15 -04:00
Kconfig
locking.c Btrfs: switch the btrfs tree locks to reader/writer 2011-07-27 12:46:46 -04:00
locking.h Btrfs: switch the btrfs tree locks to reader/writer 2011-07-27 12:46:46 -04:00
lzo.c
Makefile Btrfs: make acl functions really no-op if acl is not enabled 2011-08-01 14:30:48 -04:00
ordered-data.c Btrfs: add initial tracepoint support for btrfs 2011-03-28 05:37:33 -04:00
ordered-data.h
orphan.c
print-tree.c
print-tree.h
relocation.c Btrfs: kill unused parts of block_rsv 2011-10-19 15:12:34 -04:00
root-tree.c btrfs: make btrfs_set_root_node void 2011-08-01 14:30:44 -04:00
scrub.c btrfs: remove unneeded includes from scrub.c 2011-06-10 14:59:52 +02:00
struct-funcs.c Btrfs: stop using highmem for extent_buffers 2011-07-27 12:46:45 -04:00
super.c Btrfs: fix how we mount subvol=<whatever> 2011-10-19 15:12:29 -04:00
sysfs.c btrfs: Remove unused sysfs code 2011-06-17 14:54:18 -04:00
transaction.c Btrfs: kill the orphan space calculation for snapshots 2011-10-19 15:12:32 -04:00
transaction.h Merge branch 'for-chris' of 2011-05-28 07:00:39 -04:00
tree-defrag.c btrfs: drop unused parameter from btrfs_release_path 2011-05-02 13:57:22 +02:00
tree-log.c Btrfs: fix an oops of log replay 2011-08-16 21:09:15 -04:00
tree-log.h btrfs: remove unused function prototypes 2011-05-04 14:01:26 +02:00
version.h
volumes.c Btrfs: fix uninitialized sync_pending 2011-08-16 21:09:31 -04:00
volumes.h Btrfs: detect wether a device supports discard 2011-08-16 21:09:15 -04:00
xattr.c btrfs: xattr: fix attribute removal 2011-09-11 10:52:25 -04:00
xattr.h
zlib.c