dfe2502068
Btrfs: Add mount -o degraded to allow mounts to continue with missing devices
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2008-09-25 11:04:03 -04:00
a061fc8da7
Btrfs: Add support for online device removal
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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
788f20eb5a
Btrfs: Add new ioctl to add devices
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2008-09-25 11:04:02 -04:00
e58ca0203d
Fix btrfs_fill_super to return -EINVAL when no FS found
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2008-09-25 11:04:01 -04:00
8a4b83cc8b
Btrfs: Add support for device scanning and detection ioctls
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2008-09-25 11:04:01 -04:00
a9218f6b00
Add /dev/btrfs-control for device scanning ioctls
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2008-09-25 11:04:01 -04:00
6885f308b5
Btrfs: Misc 2.6.25 updates
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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
6f568d35a0
Btrfs: mount -o max_inline=size to control the maximum inline extent size
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2008-09-25 11:04:00 -04:00
d1310b2e0c
Btrfs: Split the extent_map code into two parts
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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
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
e18e4809b1
Btrfs: Add mount -o ssd, which includes optimizations for seek free storage
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2008-09-25 11:03:59 -04:00
2da98f003f
Btrfs: Run igrab on data=ordered inodes to prevent deadlocks during writeout
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2008-09-25 11:03:59 -04:00
61295eb866
Btrfs: Add drop inode func to avoid data=ordered deadlock
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2008-09-25 11:03:59 -04:00
21ad10cf3e
Btrfs: Add flush barriers on commit
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2008-09-25 11:03:59 -04:00
8f662a76c6
Btrfs: Add readahead to the online shrinker, and a mount -o alloc_start= for testing
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2008-09-25 11:03:58 -04:00
edbd8d4efe
Btrfs: Support for online FS resize (grow and shrink)
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2008-09-25 11:03:58 -04:00
6da6abae02
Btrfs: Back port to 2.6.18-el kernels
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2008-09-25 11:03:58 -04:00
c59f8951d4
Btrfs: Add mount option to enforce a max extent size
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2008-09-25 11:03:58 -04:00
be20aa9dba
Btrfs: Add mount option to turn off data cow
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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
b6cda9bcb4
Btrfs: Add mount -o nodatasum to turn of file data checksumming
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2008-09-25 11:03:58 -04:00
2f4cbe6442
Btrfs: Return value checking in module init
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2008-09-25 11:03:58 -04:00
5103e947b9
xattr support for btrfs
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2008-09-25 11:03:57 -04:00
3326d1b07c
Btrfs: Allow tails larger than one page
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2008-09-25 11:03:56 -04:00
db94535db7
Btrfs: Allow tree blocks larger than the page size
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2008-09-25 11:03:56 -04:00
5f39d397df
Btrfs: Create extent_buffer interface for large blocksizes
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2008-09-25 11:03:56 -04:00
95e0528919
Btrfs: Use mount -o subvol to select the subvol directory instead of dev:
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2007-08-29 09:11:44 -04:00
4b82d6e4a5
Btrfs: Add mount into directory support
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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
58176a9604
Btrfs: Add per-root block accounting and sysfs entries
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2007-08-29 15:47:34 -04:00
b888db2bd7
Btrfs: Add delayed allocation to the extent based page tree code
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2007-08-27 16:49:44 -04:00
a52d9a8033
Btrfs: Extent based page cache code. This uses an rbtree of extents and tests
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instead of buffer heads.
Signed-off-by: Chris Mason <chris.mason@oracle.com >
2007-08-27 16:49:44 -04:00
e9d0b13b5b
Btrfs: Btree defrag on the extent-mapping tree as well
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2007-08-10 14:06:19 -04:00
4b52dff6d3
Btrfs: Fix super block updates during transaction commit
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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
54aa1f4dfd
Btrfs: Audit callers and return codes to make sure -ENOSPC gets up the stack
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2007-06-22 14:16:25 -04:00
6cbd557078
Btrfs: add GPLv2
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2007-06-12 09:07:21 -04:00
39279cc3d2
Btrfs: split up super.c
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2007-06-12 06:35:45 -04:00
5276aedab0
Btrfs: fix oops after block group lookup
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2007-06-11 21:33:38 -04:00
0cf6c62017
Btrfs: remove device tree
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2007-06-09 09:22:25 -04:00
08607c1b18
Btrfs: add compat ioctl
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2007-06-08 15:33:54 -04:00
fabb568183
Btrfs: d_type optimization
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2007-06-07 22:13:21 -04:00
1de037a43e
Btrfs: fixup various fsx failures
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2007-05-29 15:17:08 -04:00
3a68637562
Btrfs: sparse files!
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2007-05-24 13:35:57 -04:00
2b8d99a723
Btrfs: symlinks and hard links
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2007-05-24 08:34:10 -04:00
e06afa839e
Btrfs: rename
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2007-05-23 15:44:28 -04:00
f9f3c6b666
Btrfs: 2.6.21-git fixes
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2007-05-21 14:05:12 -04:00
de428b63b1
Btrfs: allocator optimizations, truncate readahead
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2007-05-18 13:28:27 -04:00
098f59c251
Btrfs: patch queue: fix corruption when splitting large items
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2007-05-11 11:33:21 -04:00
e37c9e6921
Btrfs: many allocator fixes, pretty solid
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2007-05-09 20:13:14 -04:00
be74417553
Btrfs: more allocator enhancements
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2007-05-06 10:15:01 -04:00
be08c1b9f8
Btrfs: early metadata/data split
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2007-05-03 09:06:49 -04:00
35b7e47610
Btrfs: fix page cache memory leak
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Signed-off-by: Chris Mason <chris.mason@oracle.com >
2007-05-02 15:53:43 -04:00
