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path: root/fs/btrfs/btrfs_inode.h
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2008-09-25Get rid of BTRFS_I(inode)->index and use local vars insteadChris Mason1-9/+0
rename and link don't always have a lock on the source inode, and our use of a per-inode index variable was racy. This changes things to store the index in a local variable instead. Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Maintain a list of inodes that are delalloc and a way to wait on themChris Mason1-0/+2
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Create orphan inode records to prevent lost files after a crashJosef Bacik1-0/+3
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Add ACL supportJosef Bacik1-0/+3
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Implement new dir index formatJosef Bacik1-0/+15
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Add a per-inode lock around btrfs_drop_extentsChris Mason1-0/+1
btrfs_drop_extents is always called with a range lock held on the inode. But, it may operate on extents outside that range as it drops and splits them. This patch adds a per-inode mutex that is held while calling btrfs_drop_extents and while inserting new extents into the tree. It prevents races from two procs working against adjacent ranges in the tree. Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Update on disk i_size only after pending ordered extents are doneChris Mason1-0/+9
This changes the ordered data code to update i_size after the extent is on disk. An on disk i_size is maintained in the in-memory btrfs inode structures, and this is updated as extents finish. Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: New data=ordered implementationChris Mason1-2/+2
The old data=ordered code would force commit to wait until all the data extents from the transaction were fully on disk. This introduced large latencies into the commit and stalled new writers in the transaction for a long time. The new code changes the way data allocations and extents work: * When delayed allocation is filled, data extents are reserved, and the extent bit EXTENT_ORDERED is set on the entire range of the extent. A struct btrfs_ordered_extent is allocated an inserted into a per-inode rbtree to track the pending extents. * As each page is written EXTENT_ORDERED is cleared on the bytes corresponding to that page. * When all of the bytes corresponding to a single struct btrfs_ordered_extent are written, The previously reserved extent is inserted into the FS btree and into the extent allocation trees. The checksums for the file data are also updated. Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Add a per-inode csum mutex to avoid races creating csum itemsChris Mason1-0/+1
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Throttle file_write when data=ordered is flushing the inodeChris Mason1-0/+1
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Handle checksumming errors while reading data blocksChris Mason1-0/+1
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Fix i_blocks accountingChris Mason1-0/+1
Now that delayed allocation accounting works, i_blocks accounting is changed to only modify i_blocks when extents inserted or removed. The fillattr call is changed to include the delayed allocation byte count in the i_blocks result. Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Split the extent_map code into two partsChris Mason1-0/+2
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>
2008-09-25Btrfs: Add inode flags supportYan1-0/+1
This patch adds NODATASUM & NODATACOW inode flags support. Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Add data=ordered supportChris Mason1-0/+1
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>
2007-08-28Btrfs: Extent based page cache code. This uses an rbtree of extents and testsChris Mason1-0/+3
instead of buffer heads. Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-11Btrfs: delay commits during fsync to allow more writersJosef Bacik1-0/+5
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-14btrfs: Code cleanupAneesh1-0/+1
Attaching below is some of the code cleanups that i came across while reading the code. a) alloc_path already calls init_path. b) Mention that btrfs_inode is the in memory copy.Ext4 have ext4_inode_info as the in memory copy ext4_inode as the disk copy Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-12Btrfs: add GPLv2Chris Mason1-0/+18
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-30Btrfs: allocator improvements, inode block groupsChris Mason1-0/+1
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-10Btrfs: drop the inode map treeChris Mason1-2/+0
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-06Btrfs: start of support for many FS volumesChris Mason1-0/+2
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-02Btrfs: still corruption huntingChris Mason1-0/+14
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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