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path: root/fs/btrfs/transaction.h
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* Btrfs: Split the extent_map code into two partsChris Mason2008-09-25
| | | | | | | | | | | | | | 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: Move snapshot creation to commit timeChris Mason2008-09-25
| | | | | | | | | | It is very difficult to create a consistent snapshot of the btree when other writers may update the btree before the commit is done. This changes the snapshot creation to happen during the commit, while no other updates are possible. Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Add data=ordered supportChris Mason2008-09-25
| | | | | | | | This forces file data extents down the disk along with the metadata that references them. The current implementation is fairly simple, and just writes out all of the dirty pages in an inode before the commit. Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Back port to 2.6.18-el kernelsChris Mason2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Create extent_buffer interface for large blocksizesChris Mason2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Find and remove dead roots the first time a root is loaded.Chris Mason2007-09-11
| | | | | | | | | | | | | | Dead roots are trees left over after a crash, and they were either in the process of being removed or were waiting to be removed when the box crashed. Before, a search of the entire tree of root pointers was done on mount looking for dead roots. Now, the search is done the first time we load a root. This makes mount faster when there are a large number of snapshots, and it enables the block accounting code to properly update the block counts on the latest root as old versions of the root are reaped after a crash. Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: delay commits during fsync to allow more writersJosef Bacik2007-08-10
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Btree defrag on the extent-mapping tree as wellChris Mason2007-08-10
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Replace extent tree preallocation code with some bit radix magic.Chris Mason2007-08-08
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Add run time btree defrag, and an ioctl to force btree defragChris Mason2007-08-07
| | | | | | | | | | | This adds two types of btree defrag, a run time form that tries to defrag recently allocated blocks in the btree when they are still in ram, and an ioctl that forces defrag of all btree blocks. File data blocks are not defragged yet, but this can make a huge difference in sequential btree reads. Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Add the ability to find and remove dead roots after a crash.Chris Mason2007-06-22
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: add GPLv2Chris Mason2007-06-12
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: get forced transaction commits via workqueueChris Mason2007-06-08
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: add compat ioctlChris Mason2007-06-08
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: allocator improvements, inode block groupsChris Mason2007-04-30
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: smarter transaction writebackChris Mason2007-04-28
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: early fsync supportChris Mason2007-04-19
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: still corruption huntingChris Mason2007-04-02
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: transaction reworkChris Mason2007-03-22
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Mountable btrfs, with readdirChris Mason2007-03-22
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: transaction handles everywhereChris Mason2007-03-16
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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