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Yan Zheng a512bbf855 Btrfs: superblock duplication 
This patch implements superblock duplication. Superblocks
are stored at offset 16K, 64M and 256G on every devices.
Spaces used by superblocks are preserved by the allocator,
which uses a reverse mapping function to find the logical
addresses that correspond to superblocks. Thank you,

Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
2008-12-08 16:46:26 -05:00
..
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
Btrfs: compat code fixes
2008-11-20 10:22:27 -05:00
compression.c
Btrfs: move data checksumming into a dedicated tree
2008-12-08 16:58:54 -05:00
compression.h
Btrfs: Add zlib compression support
2008-10-29 14:49:59 -04:00
COPYING
Btrfs: add GPLv2
2007-06-12 09:07:21 -04:00
crc32c.h
Btrfs: add and improve comments
2008-09-29 15:18:18 -04:00
ctree.c
Btrfs: make things static and include the right headers
2008-12-02 09:54:17 -05:00
ctree.h
Btrfs: move data checksumming into a dedicated tree
2008-12-08 16:58:54 -05:00
dir-item.c
Btrfs: add and improve comments
2008-09-29 15:18:18 -04:00
disk-io.c
Btrfs: superblock duplication
2008-12-08 16:46:26 -05:00
disk-io.h
Btrfs: superblock duplication
2008-12-08 16:46:26 -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_io.c
Btrfs: move data checksumming into a dedicated tree
2008-12-08 16:58:54 -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
extent-tree.c
Btrfs: superblock duplication
2008-12-08 16:46:26 -05:00
file-item.c
Btrfs: move data checksumming into a dedicated tree
2008-12-08 16:58:54 -05:00
file.c
Btrfs: fix shadowed variable declarations
2008-12-02 06:36:09 -05:00
free-space-cache.c
Btrfs: superblock duplication
2008-12-08 16:46:26 -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: extent_map and data=ordered fixes for space balancing
2008-09-26 10:05:38 -04:00
inode.c
Btrfs: move data checksumming into a dedicated tree
2008-12-08 16:58:54 -05:00
INSTALL
Btrfs: Documentation update
2007-06-22 14:49:31 -04:00
ioctl.c
Btrfs: move data checksumming into a dedicated tree
2008-12-08 16:58:54 -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
Makefile
Btrfs: Add zlib compression support
2008-10-29 14:49:59 -04:00
ordered-data.c
Btrfs: move data checksumming into a dedicated tree
2008-12-08 16:58:54 -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: 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: make things static and include the right headers
2008-12-02 09:54:17 -05:00
struct-funcs.c
Btrfs: Fix sparse endian warnings in struct-funcs.c
2008-12-02 11:18:37 -05:00
super.c
Btrfs: corret fmode_t annotations
2008-12-02 06:36:09 -05:00
sysfs.c
Remove Btrfs compat code for older kernels
2008-09-25 15:41:59 -04:00
transaction.c
Btrfs: superblock duplication
2008-12-08 16:46:26 -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: superblock duplication
2008-12-08 16:46:26 -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: superblock duplication
2008-12-08 16:46:26 -05:00
volumes.h
Btrfs: superblock duplication
2008-12-08 16:46:26 -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: make things static and include the right headers
2008-12-02 09:54:17 -05:00