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6606bb97e1
linux/fs/btrfs
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Josef Bacik 6606bb97e1 Btrfs: fix btrfs_remove_from_free_space corner case 
Yan Zheng hit a problem where we tried to remove some free space but failed
because we couldn't find the free space entry.  This is because the free space
was held within a bitmap that had a starting offset well before the actual
offset of the free space, and there were free space extents that were in the
same range as that offset, so tree_search_offset returned with NULL because we
couldn't find a free space extent that had that offset.  This is fixed by
making sure that if we fail to find the entry, we re-search again with
bitmap_only set to 1 and do an offset_to_bitmap so we can get the appropriate
bitmap.  A similar problem happens in btrfs_alloc_from_bitmap for the
clustering code, but that is not as bad since we will just go and redo our
cluster allocation.

Also this adds some debugging checks to make sure that the free space we are
trying to remove from the bitmap is in fact there.  This can probably go away
after a while, but since this code is only used by the tree-logging stuff it
would be nice to run with it for a while to make sure there are no problems.

Signed-off-by: Josef Bacik <jbacik@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2009-07-31 11:03:58 -04:00
..
acl.c Fix btrfs when ACLs are configured out 2009-06-10 11:36:43 -04:00
async-thread.c Btrfs: convert nested spin_lock_irqsave to spin_lock 2009-07-22 16:49:00 -04:00
async-thread.h Btrfs: add a priority queue to the async thread helpers 2009-04-20 15:53:08 -04:00
btrfs_inode.h Btrfs: implement FS_IOC_GETFLAGS/SETFLAGS/GETVERSION 2009-06-10 11:29:52 -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: implement FS_IOC_GETFLAGS/SETFLAGS/GETVERSION 2009-06-10 11:29:52 -04:00
compression.h Btrfs: Add zlib compression support 2008-10-29 14:49:59 -04:00
ctree.c Btrfs: Avoid delayed reference update looping 2009-07-24 12:42:46 -04:00
ctree.h Btrfs: preserve commit_root for async caching 2009-07-30 09:40:40 -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: leave btree locks spinning more often 2009-03-24 16:14:28 -04:00
disk-io.c Btrfs: preserve commit_root for async caching 2009-07-30 09:40:40 -04:00
disk-io.h Btrfs: leave btree locks spinning more often 2009-03-24 16:14:28 -04:00
export.c Btrfs: Mixed back reference (FORWARD ROLLING FORMAT CHANGE) 2009-06-10 11:29:46 -04:00
export.h NFS support for btrfs - v3 2008-09-25 11:04:06 -04:00
extent_io.c btrfs: Fix set/clear_extent_bit for 'end == (u64)-1' 2009-06-10 11:29:46 -04:00
extent_io.h Btrfs: leave btree locks spinning more often 2009-03-24 16:14:28 -04:00
extent_map.c Btrfs: kill btrfs_cache_create 2009-04-24 15:46:04 -04:00
extent_map.h Btrfs: Fix csum error for compressed data 2008-11-10 07:34:43 -05:00
extent-tree.c Btrfs: be more polite in the async caching threads 2009-07-30 10:14:46 -04:00
file-item.c Btrfs: leave btree locks spinning more often 2009-03-24 16:14:28 -04:00
file.c Btrfs: don't log the inode in file_write while growing the file 2009-07-02 13:41:16 -04:00
free-space-cache.c Btrfs: fix btrfs_remove_from_free_space corner case 2009-07-31 11:03:58 -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: leave btree locks spinning more often 2009-03-24 16:14:28 -04:00
inode-map.c Btrfs: Fix a trivial warning using max() of u64 vs ULL. 2009-04-27 08:37:49 -04:00
inode.c Btrfs: adjust NULL test 2009-07-22 16:49:01 -04:00
ioctl.c Btrfs: fix the file clone ioctl for preallocated extents 2009-07-02 13:41:16 -04:00
ioctl.h Btrfs: fix ioctl arg size (userland incompatible change!) 2009-01-16 11:59:08 -05:00
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: use WRITE_SYNC for synchronous writes 2009-04-20 15:53:08 -04:00
ordered-data.h Btrfs: add extra flushing for renames and truncates 2009-03-31 14:27:58 -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: 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 locking issue in btrfs_find_next_key 2009-07-22 09:59:00 -04:00
root-tree.c Btrfs: Mixed back reference (FORWARD ROLLING FORMAT CHANGE) 2009-06-10 11:29:46 -04:00
struct-funcs.c Btrfs: Fix checkpatch.pl warnings 2009-01-05 21:25:51 -05:00
super.c Btrfs: fix -o nodatasum printk spelling 2009-06-11 09:30:13 -04:00
sysfs.c Btrfs: Fix checkpatch.pl warnings 2009-01-05 21:25:51 -05:00
transaction.c Btrfs: be more polite in the async caching threads 2009-07-30 10:14:46 -04:00
transaction.h Btrfs: be more polite in the async caching threads 2009-07-30 10:14:46 -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: change how we unpin extents 2009-07-27 13:57:01 -04:00
tree-log.h Btrfs: tree logging unlink/rename fixes 2009-03-24 16:14:52 -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: find smallest available device extent during chunk allocation 2009-07-24 16:41:41 -04:00
volumes.h Btrfs: avoid races between super writeout and device list updates 2009-06-10 15:17:02 -04:00
xattr.c Btrfs: selinux support 2009-02-04 09:29:13 -05:00
xattr.h Btrfs: selinux support 2009-02-04 09:29:13 -05:00
zlib.c Btrfs: Fix checkpatch.pl warnings 2009-01-05 21:25:51 -05:00