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path: root/fs/btrfs/extent_map.h
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2008-09-25Btrfs: Implement basic support for -ENOSPCChris Mason1-1/+2
This is intended to prevent accidentally filling the drive. A determined user can still make things oops. It includes some accounting of the current bytes under delayed allocation, but this will change as things get optimized Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: section mismatch warningsChristian Hesse1-1/+1
--Boundary-00=_CcOWHFYK4T+JwSj Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Hello everybody, compiling btrfs into the kernel results in section mismatch warnings. __exit functions are called where they are not allowed to. The attached patch fixes this for me. Not sure if it is correct though. Signed-off-by: Christian Hesse <mail@earthworm.de> -- Regards, Chris --Boundary-00=_CcOWHFYK4T+JwSj Content-Type: text/x-diff; charset="iso-8859-1"; name="btrfs-section_mismatches.patch" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="btrfs-section_mismatches.patch" Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Add efficient dirty accounting to the extent_map treeChris Mason1-0/+1
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Limit btree writeback to prevent seeksChris Mason1-0/+3
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Return value checking in module initWyatt Banks1-1/+1
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Add readpages supportChris Mason1-0/+4
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Add writepages supportChris Mason1-0/+4
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Fix a number of inline extent problems that Yan Zheng reported.Chris Mason1-1/+0
The fixes do a number of things: 1) Most btrfs_drop_extent callers will try to leave the inline extents in place. It can truncate bytes off the beginning of the inline extent if required. 2) writepage can now update the inline extent, allowing mmap writes to go directly into the inline extent. 3) btrfs_truncate_in_transaction truncates inline extents 4) extent_map.c fixed to not merge inline extent mappings and hole mappings together Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Add back metadata checksummingChris Mason1-2/+16
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: extent_map optimizations to cut down on CPU usageChris Mason1-1/+1
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Add an extent buffer LRU to reduce radix tree hitsChris Mason1-7/+9
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Add back the online defragging codeChris Mason1-0/+2
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Use an array of pages in the extent buffers to reduce the cost of ↵Chris Mason1-2/+2
find_get_page Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Allow tree blocks larger than the page sizeChris Mason1-5/+5
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Change the remaining radix trees used by extent-tree.c to extent_map ↵Chris Mason1-1/+3
trees Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Stop using radix trees for the block group cacheChris Mason1-0/+4
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Fix extent_buffer and extent_state leaksChris Mason1-0/+2
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Avoid memcpy where possible in extent_buffersChris Mason1-3/+2
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Optimizations for the extent_buffer codeChris Mason1-1/+1
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Create extent_buffer interface for large blocksizesChris Mason1-2/+73
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: factor page private preparations into a helperChristoph Hellwig1-0/+1
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-09-11Btrfs: [PATCH] extent_map: add writepage_end_io hookChristoph Hellwig1-0/+1
XFS updates the ondisk inode size only after the data I/O has finished, so it needs a hook when the writepage end_bio handler has finished. Might not be worth applying as-is as the per-page callback is very ineffcient. What XFS really wants is a callback when writeout of a whole extent has completed. This delayed i_size updates scheme might be worthwile for btrfs aswell, btw. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-09-11Btrfs: [PATCH] extent_map: provide generic bmapChristoph Hellwig1-0/+2
generic_bmap is completely trivial, while the extent to bh mapping in btrfs is rather complex. So provide a extent_bmap instead that takes a get_extent callback and can be used by filesystem using the extent_map code. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-30Btrfs: Add file data csums back in via hooks in the extent map codeChris Mason1-1/+14
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-28Btrfs: Add delayed allocation to the extent based page tree codeChris Mason1-0/+3
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/+89
instead of buffer heads. Signed-off-by: Chris Mason <chris.mason@oracle.com>
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