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
Chris Mason
Yan
Wyatt Banks
Josef Bacik