Chris Mason
dfe2502068
Btrfs: Add mount -o degraded to allow mounts to continue with missing devices
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:03 -04:00
Chris Mason
a061fc8da7
Btrfs: Add support for online device removal
...
This required a few structural changes to the code that manages bdev pointers:
The VFS super block now gets an anon-bdev instead of a pointer to the
lowest bdev. This allows us to avoid swapping the super block bdev pointer
around at run time.
The code to read in the super block no longer goes through the extent
buffer interface. Things got ugly keeping the mapping constant.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:02 -04:00
Chris Mason
788f20eb5a
Btrfs: Add new ioctl to add devices
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:02 -04:00
Yan
e58ca0203d
Fix btrfs_fill_super to return -EINVAL when no FS found
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:01 -04:00
Chris Mason
8a4b83cc8b
Btrfs: Add support for device scanning and detection ioctls
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:01 -04:00
Chris Mason
a9218f6b00
Add /dev/btrfs-control for device scanning ioctls
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:01 -04:00
Chris Mason
6885f308b5
Btrfs: Misc 2.6.25 updates
...
Remove the btrfs read_inode method, and use save_mount_options
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:00 -04:00
Chris Mason
6f568d35a0
Btrfs: mount -o max_inline=size to control the maximum inline extent size
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:00 -04:00
Chris Mason
d1310b2e0c
Btrfs: Split the extent_map code into two parts
...
There is now extent_map for mapping offsets in the file to disk and
extent_io for state tracking, IO submission and extent_bufers.
The new extent_map code shifts from [start,end] pairs to [start,len], and
pushes the locking out into the caller. This allows a few performance
optimizations and is easier to use.
A number of extent_map usage bugs were fixed, mostly with failing
to remove extent_map entries when changing the file.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:59 -04:00
Yan
ed0dab6b86
Btrfs: Add basic lockfs calls
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:59 -04:00
Chris Mason
e18e4809b1
Btrfs: Add mount -o ssd, which includes optimizations for seek free storage
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:59 -04:00
Chris Mason
2da98f003f
Btrfs: Run igrab on data=ordered inodes to prevent deadlocks during writeout
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:59 -04:00
Chris Mason
61295eb866
Btrfs: Add drop inode func to avoid data=ordered deadlock
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:59 -04:00
Chris Mason
21ad10cf3e
Btrfs: Add flush barriers on commit
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:59 -04:00
Chris Mason
8f662a76c6
Btrfs: Add readahead to the online shrinker, and a mount -o alloc_start= for testing
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:58 -04:00
Chris Mason
edbd8d4efe
Btrfs: Support for online FS resize (grow and shrink)
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:58 -04:00
Chris Mason
6da6abae02
Btrfs: Back port to 2.6.18-el kernels
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:58 -04:00
Chris Mason
c59f8951d4
Btrfs: Add mount option to enforce a max extent size
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:58 -04:00
Chris Mason
be20aa9dba
Btrfs: Add mount option to turn off data cow
...
A number of workloads do not require copy on write data or checksumming.
mount -o nodatasum to disable checksums and -o nodatacow to disable
both copy on write and checksumming.
In nodatacow mode, copy on write is still performed when a given extent
is under snapshot.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:58 -04:00
Chris Mason
b6cda9bcb4
Btrfs: Add mount -o nodatasum to turn of file data checksumming
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:58 -04:00
Wyatt Banks
2f4cbe6442
Btrfs: Return value checking in module init
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:58 -04:00
Josef Bacik
5103e947b9
xattr support for btrfs
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:57 -04:00
Chris Mason
3326d1b07c
Btrfs: Allow tails larger than one page
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:56 -04:00
Chris Mason
db94535db7
Btrfs: Allow tree blocks larger than the page size
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:56 -04:00
Chris Mason
5f39d397df
Btrfs: Create extent_buffer interface for large blocksizes
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:56 -04:00
Chris Mason
95e0528919
Btrfs: Use mount -o subvol to select the subvol directory instead of dev:
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-29 09:11:44 -04:00
Yan
4b82d6e4a5
Btrfs: Add mount into directory support
...
Modified form of original patch from Christoph Hellwig to make btrfs
mount into the default subvolume by default.
mount /dev/somedevice:subvolumename to get other subvolumes or
mount /dev/somedevice:. to get the root
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-29 09:11:44 -04:00
Josef Bacik
58176a9604
Btrfs: Add per-root block accounting and sysfs entries
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-29 15:47:34 -04:00
Chris Mason
b888db2bd7
Btrfs: Add delayed allocation to the extent based page tree code
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-27 16:49:44 -04:00
Chris Mason
a52d9a8033
Btrfs: Extent based page cache code. This uses an rbtree of extents and tests
...
instead of buffer heads.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-27 16:49:44 -04:00
Chris Mason
e9d0b13b5b
Btrfs: Btree defrag on the extent-mapping tree as well
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-10 14:06:19 -04:00
Chris Mason
4b52dff6d3
Btrfs: Fix super block updates during transaction commit
...
The super block written during commit was not consistent with the state of
the trees. This change adds an in-memory copy of the super so that we can
make sure to write out consistent data during a commit.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-26 10:06:50 -04:00
Chris Mason
54aa1f4dfd
Btrfs: Audit callers and return codes to make sure -ENOSPC gets up the stack
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-22 14:16:25 -04:00
Chris Mason
6cbd557078
Btrfs: add GPLv2
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-12 09:07:21 -04:00
Chris Mason
39279cc3d2
Btrfs: split up super.c
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-12 06:35:45 -04:00
Chris Mason
5276aedab0
Btrfs: fix oops after block group lookup
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-11 21:33:38 -04:00
Chris Mason
0cf6c62017
Btrfs: remove device tree
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-09 09:22:25 -04:00
Chris Mason
08607c1b18
Btrfs: add compat ioctl
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-08 15:33:54 -04:00
Chris Mason
fabb568183
Btrfs: d_type optimization
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-07 22:13:21 -04:00
Chris Mason
1de037a43e
Btrfs: fixup various fsx failures
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-29 15:17:08 -04:00
Chris Mason
3a68637562
Btrfs: sparse files!
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-24 13:35:57 -04:00
Chris Mason
2b8d99a723
Btrfs: symlinks and hard links
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-24 08:34:10 -04:00
Chris Mason
e06afa839e
Btrfs: rename
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-23 15:44:28 -04:00
Chris Mason
f9f3c6b666
Btrfs: 2.6.21-git fixes
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-21 14:05:12 -04:00
Chris Mason
de428b63b1
Btrfs: allocator optimizations, truncate readahead
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-18 13:28:27 -04:00
Chris Mason
098f59c251
Btrfs: patch queue: fix corruption when splitting large items
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-11 11:33:21 -04:00
Chris Mason
e37c9e6921
Btrfs: many allocator fixes, pretty solid
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-09 20:13:14 -04:00
Chris Mason
be74417553
Btrfs: more allocator enhancements
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-06 10:15:01 -04:00
Chris Mason
be08c1b9f8
Btrfs: early metadata/data split
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-03 09:06:49 -04:00
Chris Mason
35b7e47610
Btrfs: fix page cache memory leak
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-02 15:53:43 -04:00
Chris Mason
090d18753c
Btrfs: directory readahead
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-01 08:53:32 -04:00
Chris Mason
31f3c99b73
Btrfs: allocator improvements, inode block groups
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-30 15:25:45 -04:00
Chris Mason
7c4452b9a6
Btrfs: smarter transaction writeback
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-28 09:29:35 -04:00
Chris Mason
cd1bc4653d
Btrfs: more block allocator work
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-27 10:08:34 -04:00
Chris Mason
9078a3e1e4
Btrfs: start of block group code
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-26 16:46:15 -04:00
Chris Mason
f68cad0f9e
Btrfs: fixup dirty_inode related deadlocks
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-24 12:44:26 -04:00
Chris Mason
c62a1920ce
Btrfs: get rid of the extent_item type field
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-24 12:07:39 -04:00
Chris Mason
b51338628f
Btrfs: add dirty_inode call
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-24 11:52:22 -04:00
Chris Mason
5e82849e63
Btrfs: new subvolume oops fix
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-23 19:10:49 -04:00
Chris Mason
4d77567309
Btrfs: add owner and type fields to the extents aand block headers
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-20 20:23:12 -04:00
Chris Mason
8fd17795b2
Btrfs: early fsync support
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-19 21:01:03 -04:00
Chris Mason
7e38180e20
Btrfs: directory inode index is back
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-19 15:36:27 -04:00
Chris Mason
236454dfff
Btrfs: many file_write fixes, inline data
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-19 13:37:44 -04:00
Chris Mason
a429e51371
Btrfs: working file_write, reorganized key flags
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-18 16:15:28 -04:00
Chris Mason
70b2befd0c
Btrfs: rework csums and extent item ordering
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-17 15:39:32 -04:00
Chris Mason
b18c668581
Btrfs: progress on file_write
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-17 13:26:50 -04:00
Chris Mason
6567e837df
Btrfs: early work to file_write in big extents
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-16 09:22:45 -04:00
Chris Mason
b4100d6424
Btrfs: add a device id to device items
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-12 12:14:00 -04:00
Chris Mason
8352d8a473
Btrfs: add disk ioctl, mostly working
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-12 10:43:05 -04:00
Chris Mason
7eccb903a8
Btrfs: create a logical->phsyical block number mapping scheme
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-11 15:53:25 -04:00
Chris Mason
2d13d8d065
Btrfs: detect duplicate subvol names
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-10 20:07:20 -04:00
Chris Mason
2619ba1f0f
Btrfs: subvolumes
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-10 16:58:11 -04:00
Chris Mason
2932f3ec94
Btrfs: when forced to cow for file_write, get the page uptodate first
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-10 14:22:02 -04:00
Chris Mason
79b2cb1fa6
Btrfs: only cow in get_block when create==1
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-10 13:51:41 -04:00
Chris Mason
48ddc6f44b
Btrfs: cow file extents before writing
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-10 13:20:21 -04:00
Chris Mason
1b05da2ee6
Btrfs: drop the inode map tree
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-10 12:13:09 -04:00
Chris Mason
c5739bba52
Btrfs: snapshot progress
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-10 09:27:04 -04:00
Chris Mason
0f7d52f443
Btrfs: groundwork for subvolume and snapshot roots
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-09 10:42:37 -04:00
Chris Mason
d6e4a428eb
Btrfs: start of support for many FS volumes
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-06 15:37:36 -04:00
Chris Mason
3eb0314dc1
Btrfs: uuids
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-05 14:28:50 -04:00
Chris Mason
5be6f7f174
Btrfs: dirindex optimizations
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-05 13:35:25 -04:00
Chris Mason
7fcde0e329
Btrfs: finish off inode indexing in dirs, add overflows
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-05 12:13:21 -04:00
Chris Mason
5f26f772e5
Btrfs: more inode indexed directory work
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-05 10:38:44 -04:00
Chris Mason
bae45de03c
Btrfs: add dir inode index
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-04 21:22:22 -04:00
Chris Mason
e8f05c4508
Btrfs: disable inline data code for now
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-04 14:30:09 -04:00
Chris Mason
d4dbff953e
Btrfs: support for items bigger than 1/2 the blocksize
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-04 14:08:15 -04:00
Chris Mason
df24a2b9c9
Btrfs: early inline file data code
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-04 09:36:31 -04:00
Chris Mason
2da566edd8
Btrfs: csum_verify_file_block locking fix
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-02 15:43:21 -04:00
Chris Mason
7cfcc17e7f
Btrfs: corruptions fixed
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-02 14:53:59 -04:00
Chris Mason
5caf2a0029
Btrfs: dynamic allocation of path struct
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-02 11:20:42 -04:00
Chris Mason
2c90e5d658
Btrfs: still corruption hunting
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-02 10:50:19 -04:00
Chris Mason
d602557953
Btrfs: corruption hunt continues
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-03-30 14:27:56 -04:00
Chris Mason
22b0ebda6c
Btrfs: hunting slab corruption
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-03-30 08:47:31 -04:00
Chris Mason
f254e52c1c
Btrfs: verify csums on read
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-03-29 15:15:27 -04:00
Chris Mason
75dfe3960e
btrfs_file_write -- first pass
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-03-29 11:56:46 -04:00
Chris Mason
87cbda5c1f
Btrfs: sha256 csums on metadata
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-03-28 19:44:27 -04:00
Chris Mason
d98237b3ed
Btrfs: use a btree inode instead of sb_getblk
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-03-28 13:57:48 -04:00
Chris Mason
5f443fd280
btrfs_rmdir
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-03-27 13:42:32 -04:00
Chris Mason
9773a78868
Btrfs: byte offsets for file keys
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-03-27 11:26:26 -04:00
Chris Mason
f4b9aa8d3b
btrfs_truncate
...
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-03-27 11:05:53 -04:00