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Chris Mason c487685d7c Btrfs: hash_lock is no longer needed 
Before metadata is written to disk, it is updated to reflect that writeout
has begun.  Once this update is done, the block must be cow'd before it
can be modified again.

This update was originally synchronized by using a per-fs spinlock.  Today
the buffers for the metadata blocks are locked before writeout begins,
and everyone that tests the flag has the buffer locked as well.

So, the per-fs spinlock (called hash_lock for no good reason) is no
longer required.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
 		2009-02-04 09:24:25 -05:00
..
Kconfig Btrfs: make btrfs acls selectable 2009-02-04 09:28:28 -05:00
Makefile Btrfs: Add zlib compression support 2008-10-29 14:49:59 -04:00
acl.c Btrfs: Fix checkpatch.pl warnings 2009-01-05 21:25:51 -05:00
async-thread.c Btrfs: async threads should try harder to find work 2009-02-04 09:23:24 -05:00
async-thread.h Btrfs: Add ordered async work queues 2008-11-06 22:03:00 -05:00
btrfs_inode.h Btrfs: fix leaking block group on balance 2008-12-11 16:30:39 -05:00
compat.h Btrfs: drop remaining LINUX_KERNEL_VERSION checks and compat code 2009-01-06 09:38:55 -05:00
compression.c Btrfs: removed unused #include <version.h>'s 2009-01-21 10:49:16 -05:00
compression.h Btrfs: Add zlib compression support 2008-10-29 14:49:59 -04:00
crc32c.h Btrfs: Drop the hardware crc32c asm code 2009-01-07 19:56:59 -05:00
ctree.c Btrfs: hash_lock is no longer needed 2009-02-04 09:24:25 -05:00
ctree.h Btrfs: hash_lock is no longer needed 2009-02-04 09:24:25 -05:00
dir-item.c Btrfs: Fix checkpatch.pl warnings 2009-01-05 21:25:51 -05:00
disk-io.c Btrfs: hash_lock is no longer needed 2009-02-04 09:24:25 -05:00
disk-io.h Btrfs: fix tree logs parallel sync 2009-01-21 12:54:03 -05:00
export.c Btrfs: Fix checkpatch.pl warnings 2009-01-05 21:25:51 -05:00
export.h NFS support for btrfs - v3 2008-09-25 11:04:06 -04:00
extent-tree.c Btrfs: sort references by byte number during btrfs_inc_ref 2009-02-04 09:23:45 -05:00
extent_io.c Btrfs: disable leak debugging checks in extent_io.c 2009-02-04 09:24:05 -05:00
extent_io.h Btrfs: fiemap support 2009-01-21 14:39:14 -05:00
extent_map.c Btrfs: removed unused #include <version.h>'s 2009-01-21 10:49:16 -05:00
extent_map.h Btrfs: Fix csum error for compressed data 2008-11-10 07:34:43 -05:00
file-item.c Btrfs: tree logging checksum fixes 2009-01-06 11:42:00 -05:00
file.c Btrfs: fix tree logs parallel sync 2009-01-21 12:54:03 -05:00
free-space-cache.c Btrfs: Fix checkpatch.pl warnings 2009-01-05 21:25:51 -05:00
hash.h Switch btrfs_name_hash() to crc32c 2008-09-25 11:04:06 -04:00
inode-item.c Btrfs: make things static and include the right headers 2008-12-02 09:54:17 -05:00
inode-map.c Btrfs: Fix checkpatch.pl warnings 2009-01-05 21:25:51 -05:00
inode.c Btrfs: selinux support 2009-02-04 09:29:13 -05:00
ioctl.c Btrfs: removed unused #include <version.h>'s 2009-01-21 10:49:16 -05:00
ioctl.h Btrfs: fix ioctl arg size (userland incompatible change!) 2009-01-16 11:59:08 -05:00
locking.c Btrfs: Fix checkpatch.pl warnings 2009-01-05 21:25:51 -05:00
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: simplify iteration codes 2009-01-21 10:59:08 -05:00
ordered-data.h Btrfs: move data checksumming into a dedicated tree 2008-12-08 16:58:54 -05:00
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: Fix checkpatch.pl warnings 2009-01-05 21:25:51 -05:00
print-tree.h Btrfs: Create extent_buffer interface for large blocksizes 2008-09-25 11:03:56 -04:00
ref-cache.c Btrfs: Fix checkpatch.pl warnings 2009-01-05 21:25:51 -05:00
ref-cache.h Btrfs: add and improve comments 2008-09-29 15:18:18 -04:00
root-tree.c Btrfs: Fix checkpatch.pl warnings 2009-01-05 21:25:51 -05:00
struct-funcs.c Btrfs: Fix checkpatch.pl warnings 2009-01-05 21:25:51 -05:00
super.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable 2009-01-28 20:29:43 -05:00
sysfs.c Btrfs: Fix checkpatch.pl warnings 2009-01-05 21:25:51 -05:00
transaction.c Btrfs: simplify iteration codes 2009-01-21 10:59:08 -05:00
transaction.h Btrfs: Fix checkpatch.pl warnings 2009-01-05 21:25:51 -05:00
tree-defrag.c Btrfs: Fix checkpatch.pl warnings 2009-01-05 21:25:51 -05:00
tree-log.c Btrfs: fix tree logs parallel sync 2009-01-21 12:54:03 -05:00
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: Fixes for 2.6.28-rc API changes 2008-11-19 21:17:22 -05:00
volumes.c Btrfs: Catch missed bios in the async bio submission thread 2009-02-04 09:19:41 -05:00
volumes.h Btrfs: shared seed device 2008-12-12 10:03:26 -05:00
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