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Josef Bacik 07103a3cdb Btrfs: fix free space accounting when unpinning extents 
This patch fixes what I hope is the last early ENOSPC bug left.  I did not know
that pinned extents would merge into one big extent when inserted on to the
pinned extent tree, so I was adding free space to a block group that could
possibly span multiple block groups.

This is a big issue because first that space doesn't exist in that block group,
and second we won't actually use that space because there are a bunch of other
checks to make sure we're allocating within the constraints of the block group.

This patch fixes the problem by adding the btrfs_add_free_space to
btrfs_update_pinned_extents which makes sure we are adding the appropriate
amount of free space to the appropriate block group.  Thanks much to Lee Trager
for running my myriad of debug patches to help me track this problem down.
Thank you,

Signed-off-by: Josef Bacik <jbacik@redhat.com>
 		2008-11-19 15:17:55 -05:00
..
COPYING Btrfs: add GPLv2 2007-06-12 09:07:21 -04:00
INSTALL Btrfs: Documentation update 2007-06-22 14:49:31 -04:00
Makefile Btrfs: Add zlib compression support 2008-10-29 14:49:59 -04:00
acl.c Btrfs: optimize btrget/set/removexattr 2008-09-25 11:04:07 -04:00
async-thread.c Btrfs: Check kthread_should_stop() before schedule() in worker_loop 2008-11-12 14:36:58 -05:00
async-thread.h Btrfs: Add ordered async work queues 2008-11-06 22:03:00 -05:00
btrfs_inode.h Btrfs: add and improve comments 2008-09-29 15:18:18 -04:00
compat.h Remove Btrfs compat code for older kernels 2008-09-25 15:41:59 -04:00
compression.c Btrfs: Fix compile warnings on 32 bit machines 2008-11-11 09:34:41 -05:00
compression.h Btrfs: Add zlib compression support 2008-10-29 14:49:59 -04:00
crc32c.h Btrfs: add and improve comments 2008-09-29 15:18:18 -04:00
ctree.c Btrfs: Some fixes for batching extent insert. 2008-11-18 11:30:10 -05:00
ctree.h Btrfs: Update the disk format for the seed device and new root code 2008-11-18 11:50:33 -05:00
dir-item.c Btrfs: add and improve comments 2008-09-29 15:18:18 -04:00
disk-io.c Btrfs: Do fsync log replay when mount -o ro, except when on readonly media 2008-11-19 15:13:35 -05:00
disk-io.h Btrfs: mount ro and remount support 2008-11-12 14:34:12 -05:00
export.c Remove Btrfs compat code for older kernels 2008-09-25 15:41:59 -04:00
export.h NFS support for btrfs - v3 2008-09-25 11:04:06 -04:00
extent-tree.c Btrfs: fix free space accounting when unpinning extents 2008-11-19 15:17:55 -05:00
extent_io.c Btrfs: Avoid writeback stalls 2008-11-19 12:44:22 -05:00
extent_io.h Btrfs: Optimize compressed writeback and reads 2008-11-06 22:02:51 -05:00
extent_map.c Btrfs: Add zlib compression support 2008-10-29 14:49:59 -04:00
extent_map.h Btrfs: Fix csum error for compressed data 2008-11-10 07:34:43 -05:00
file-item.c Btrfs: Use invalidatepage when writepage finds a page outside of i_size 2008-11-10 11:50:50 -05:00
file.c Btrfs: Fix race in btrfs_mark_extent_written 2008-11-12 14:19:50 -05:00
free-space-cache.c Btrfs: nuke fs wide allocation mutex V2 2008-10-29 14:49:05 -04:00
hash.h Switch btrfs_name_hash() to crc32c 2008-09-25 11:04:06 -04:00
inode-item.c Btrfs: Implement new dir index format 2008-09-25 11:04:05 -04:00
inode-map.c Btrfs: extent_map and data=ordered fixes for space balancing 2008-09-26 10:05:38 -04:00
inode.c Btrfs: Avoid writeback stalls 2008-11-19 12:44:22 -05:00
ioctl.c Btrfs: prevent loops in the directory tree when creating snapshots 2008-11-17 21:14:24 -05:00
ioctl.h Btrfs: Allow subvolumes and snapshots anywhere in the directory tree 2008-11-17 21:02:50 -05:00
locking.c Btrfs: add and improve comments 2008-09-29 15:18:18 -04:00
locking.h btrfs_search_slot: reduce lock contention by cowing in two stages 2008-09-25 11:04:06 -04:00
ordered-data.c Btrfs: Optimize compressed writeback and reads 2008-11-06 22:02:51 -05:00
ordered-data.h Btrfs: Add fallocate support v2 2008-10-30 14:25:28 -04:00
orphan.c Btrfs: Create orphan inode records to prevent lost files after a crash 2008-09-25 11:04:05 -04:00
print-tree.c Btrfs: Add zlib compression support 2008-10-29 14:49:59 -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: add and improve comments 2008-09-29 15:18:18 -04:00
ref-cache.h Btrfs: add and improve comments 2008-09-29 15:18:18 -04:00
root-tree.c Btrfs: prevent loops in the directory tree when creating snapshots 2008-11-17 21:14:24 -05:00
struct-funcs.c Btrfs: add and improve comments 2008-09-29 15:18:18 -04:00
super.c Btrfs: Allow subvolumes and snapshots anywhere in the directory tree 2008-11-17 21:02:50 -05:00
sysfs.c Remove Btrfs compat code for older kernels 2008-09-25 15:41:59 -04:00
transaction.c Btrfs: switch back to wait_on_page_writeback to wait on metadata writes 2008-11-18 12:13:12 -05:00
transaction.h Btrfs: Allow subvolumes and snapshots anywhere in the directory tree 2008-11-17 21:02:50 -05:00
tree-defrag.c Btrfs: nuke fs wide allocation mutex V2 2008-10-29 14:49:05 -04:00
tree-log.c Btrfs: Add fallocate support v2 2008-10-30 14:25:28 -04:00
tree-log.h Btrfs: Add a write ahead tree log to optimize synchronous operations 2008-09-25 11:04:07 -04:00
version.h Update Btrfs files for in-kernel usage 2008-09-25 15:41:59 -04:00
version.sh Btrfs: Update version.sh to v0.16 2008-09-25 11:04:06 -04:00
volumes.c Btrfs: Add a missing return pointer check 2008-11-12 14:38:54 -05:00
volumes.h Btrfs: Seed device support 2008-11-17 21:11:30 -05:00
xattr.c Btrfs: optimize btrget/set/removexattr 2008-09-25 11:04:07 -04:00
xattr.h Btrfs: optimize btrget/set/removexattr 2008-09-25 11:04:07 -04:00
zlib.c Btrfs: Fix compile warnings on 32 bit machines 2008-11-11 09:34:41 -05:00