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path: root/fs/btrfs/extent_map.c
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2008-09-25Btrfs: factor page private preparations into a helperChristoph Hellwig1-25/+15
Signed-off-by: Christoph Hellwig <[email protected]> Signed-off-by: Chris Mason <[email protected]>
2007-09-10Btrfs: [PATCH] extent_map: add writepage_end_io hookChristoph Hellwig1-0/+2
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 <[email protected]> Signed-off-by: Chris Mason <[email protected]>
2007-09-10Btrfs: [PATCH] extent_map: make the writepage_io hook optionalChristoph Hellwig1-1/+6
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 <[email protected]> Signed-off-by: Chris Mason <[email protected]>
2007-09-10Btrfs: [PATCH] extent_map: provide generic bmapChristoph Hellwig1-0/+19
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 <[email protected]> Signed-off-by: Chris Mason <[email protected]>
2007-09-10Btrfs: [PATCH] extent_map: fix locking for bio completionChristoph Hellwig1-6/+8
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 <[email protected]> Signed-off-by: Chris Mason <[email protected]>
2007-09-10Btrfs: Reorder tests in set_extent_bit to properly find holesChris Mason1-22/+22
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 <[email protected]>
2007-09-10Add support for defragging files via btrfsctl -d. Avoid OOM on extent treeChris Mason1-6/+10
defrag. Signed-off-by: Chris Mason <[email protected]>
2007-08-30Btrfs: fsx delalloc fixesChris Mason1-2/+7
Signed-off-by: Chris Mason <[email protected]>
2007-08-30Btrfs: Add file data csums back in via hooks in the extent map codeChris Mason1-10/+84
Signed-off-by: Chris Mason <[email protected]>
2007-08-27Btrfs: Add delayed allocation to the extent based page tree codeChris Mason1-35/+112
Signed-off-by: Chris Mason <[email protected]>
2007-08-27Btrfs: Extent based page cache code. This uses an rbtree of extents and testsChris Mason1-0/+1656
instead of buffer heads. Signed-off-by: Chris Mason <[email protected]>
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