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* Fix btrfs_fill_super to return -EINVAL when no FS foundYan2008-09-251-2/+2
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Add support for device scanning and detection ioctlsChris Mason2008-09-251-17/+44
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Add /dev/btrfs-control for device scanning ioctlsChris Mason2008-09-251-1/+40
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Misc 2.6.25 updatesChris Mason2008-09-251-1/+10
| | | | | | Remove the btrfs read_inode method, and use save_mount_options Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: mount -o max_inline=size to control the maximum inline extent sizeChris Mason2008-09-251-1/+18
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Split the extent_map code into two partsChris Mason2008-09-251-1/+9
| | | | | | | | | | | | | | 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>
* Btrfs: Add basic lockfs callsYan2008-09-251-1/+13
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Add mount -o ssd, which includes optimizations for seek free storageChris Mason2008-09-251-1/+8
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Run igrab on data=ordered inodes to prevent deadlocks during writeoutChris Mason2008-09-251-1/+1
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Add drop inode func to avoid data=ordered deadlockChris Mason2008-09-251-0/+1
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Add flush barriers on commitChris Mason2008-09-251-1/+8
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Add readahead to the online shrinker, and a mount -o alloc_start= for ↵Chris Mason2008-09-251-1/+15
| | | | | | testing Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Support for online FS resize (grow and shrink)Chris Mason2008-09-251-3/+4
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Back port to 2.6.18-el kernelsChris Mason2008-09-251-0/+1
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Add mount option to enforce a max extent sizeChris Mason2008-09-251-1/+45
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Add mount option to turn off data cowChris Mason2008-09-251-7/+27
| | | | | | | | | | | 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>
* Btrfs: Add mount -o nodatasum to turn of file data checksummingChris Mason2008-09-251-2/+15
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Return value checking in module initWyatt Banks2008-09-251-3/+18
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* xattr support for btrfsJosef Bacik2008-09-251-0/+2
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Allow tails larger than one pageChris Mason2008-09-251-2/+0
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Allow tree blocks larger than the page sizeChris Mason2008-09-251-2/+4
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Create extent_buffer interface for large blocksizesChris Mason2008-09-251-3/+4
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Use mount -o subvol to select the subvol directory instead of dev:Chris Mason2007-08-291-10/+39
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Add mount into directory supportYan2007-08-291-3/+120
| | | | | | | | | | 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>
* Btrfs: Add per-root block accounting and sysfs entriesJosef Bacik2007-08-291-0/+14
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Add delayed allocation to the extent based page tree codeChris Mason2007-08-271-0/+1
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Extent based page cache code. This uses an rbtree of extents and testsChris Mason2007-08-271-0/+2
| | | | | | instead of buffer heads. Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Btree defrag on the extent-mapping tree as wellChris Mason2007-08-101-0/+2
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Fix super block updates during transaction commitChris Mason2007-06-261-1/+1
| | | | | | | | 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>
* Btrfs: Audit callers and return codes to make sure -ENOSPC gets up the stackChris Mason2007-06-221-2/+1
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: add GPLv2Chris Mason2007-06-121-0/+18
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: split up super.cChris Mason2007-06-121-2867/+12
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: fix oops after block group lookupChris Mason2007-06-121-6/+2
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: remove device treeChris Mason2007-06-091-88/+0
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: add compat ioctlChris Mason2007-06-081-2/+25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: d_type optimizationChris Mason2007-06-081-9/+57
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: fixup various fsx failuresChris Mason2007-05-291-32/+181
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: sparse files!Chris Mason2007-05-241-22/+99
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: symlinks and hard linksChris Mason2007-05-241-16/+147
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: renameChris Mason2007-05-231-12/+120
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: 2.6.21-git fixesChris Mason2007-05-211-20/+1
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: allocator optimizations, truncate readaheadChris Mason2007-05-181-19/+57
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: patch queue: fix corruption when splitting large itemsChris Mason2007-05-111-4/+4
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: many allocator fixes, pretty solidChris Mason2007-05-101-2/+2
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: more allocator enhancementsChris Mason2007-05-061-1/+1
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: early metadata/data splitChris Mason2007-05-031-1/+1
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: fix page cache memory leakChris Mason2007-05-021-22/+34
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: directory readaheadChris Mason2007-05-011-0/+28
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: allocator improvements, inode block groupsChris Mason2007-04-301-9/+44
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: smarter transaction writebackChris Mason2007-04-281-1/+0
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
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