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path: root/fs/btrfs/extent_map.c
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2008-09-25Btrfs: CPU usage optimizations in push and the extent_map codeChris Mason
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Fix read/write_extent_buffer to use KM_USER1 instead of KM_USER0Chris Mason
This avoids recursive use of KM_USER0 during btrfs_file_write Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Fix bi_end_io() functions on > 2.6.23 kernelsJens Axboe
It now returns void and it is never called for partial completions, so the bio->bi_size check must go. Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25btrfs: 32-bit type problemsJens Axboe
An assorted set of casts to get rid of the warnings on 32-bit archs. Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Add back file data checksummingChris Mason
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Add back metadata checksummingChris Mason
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: extent_map optimizations to cut down on CPU usageChris Mason
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Add an extent buffer LRU to reduce radix tree hitsChris Mason
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Fix allocation routines to avoid intermixing data and metadata ↵Chris Mason
allocations 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 Mason
find_get_page Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Cache extent buffer mappingsChris Mason
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Allow tree blocks larger than the page sizeChris Mason
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 Mason
trees Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Stop using radix trees for the block group cacheChris Mason
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Fix extent_buffer and extent_state leaksChris Mason
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Go back to kmaps instead of page_address in extent_buffersChris Mason
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Avoid memcpy where possible in extent_buffersChris Mason
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Optimizations for the extent_buffer codeChris Mason
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: Create extent_buffer interface for large blocksizesChris Mason
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25Btrfs: factor page private preparations into a helperChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-09-10Btrfs: [PATCH] extent_map: add writepage_end_io hookChristoph Hellwig
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>
2007-09-10Btrfs: [PATCH] extent_map: make the writepage_io hook optionalChristoph Hellwig
The writepage_io is not mandatory, e.g. my port of xfs to the extent_map code does not have one for now. So handle a NULL pointer gracefully here. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-09-10Btrfs: [PATCH] extent_map: provide generic bmapChristoph Hellwig
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>
2007-09-10Btrfs: [PATCH] extent_map: fix locking for bio completionChristoph Hellwig
The bio completion handlers can be run in any context, e.g. when using the old ide driver they run in hardirq context with irqs disabled so lockdep rightfully warns about using write_lock_irq useage in these handlers. This patch switches clear_extent_bit and set_extent_bit to write_lock_irqsave to fix this problem. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-09-10Btrfs: Reorder tests in set_extent_bit to properly find holesChris Mason
Yan Zheng noticed that set_extent_bit was exiting too early when there was a hole in the map. The fix is to reorder the tests to check for the hole first. Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-09-10Add support for defragging files via btrfsctl -d. Avoid OOM on extent treeChris Mason
defrag. Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-30Btrfs: fsx delalloc fixesChris Mason
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 Mason
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-27Btrfs: Add delayed allocation to the extent based page tree codeChris Mason
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-27Btrfs: Extent based page cache code. This uses an rbtree of extents and testsChris Mason
instead of buffer heads. Signed-off-by: Chris Mason <chris.mason@oracle.com>
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