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* Btrfs: Fix a number of inline extent problems that Yan Zheng reported.Chris Mason2008-09-251-3/+8
| | | | | | | | | | | | | | | | | | 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>
* Btrfs: Fix PAGE_CACHE_SHIFT shifts on 32 bit machinesChris Mason2008-09-251-12/+15
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Fix extent_map leak in extent_bmapYan2008-09-251-2/+6
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Off by one fixes in extent_map.cYan2008-09-251-5/+5
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Avoid recursive KM_USER1 mappings in copy_extent_bufferChris Mason2008-09-251-2/+2
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: CPU usage optimizations in push and the extent_map codeChris Mason2008-09-251-30/+15Star
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Fix read/write_extent_buffer to use KM_USER1 instead of KM_USER0Chris Mason2008-09-251-4/+4
| | | | | | This avoids recursive use of KM_USER0 during btrfs_file_write Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Fix bi_end_io() functions on > 2.6.23 kernelsJens Axboe2008-09-251-0/+25
| | | | | | | 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>
* btrfs: 32-bit type problemsJens Axboe2008-09-251-3/+3
| | | | | | An assorted set of casts to get rid of the warnings on 32-bit archs. Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Add back file data checksummingChris Mason2008-09-251-0/+3
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Add back metadata checksummingChris Mason2008-09-251-15/+68
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: extent_map optimizations to cut down on CPU usageChris Mason2008-09-251-19/+14Star
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Add an extent buffer LRU to reduce radix tree hitsChris Mason2008-09-251-77/+106
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Fix allocation routines to avoid intermixing data and metadata ↵Chris Mason2008-09-251-3/+3
| | | | | | allocations Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Use an array of pages in the extent buffers to reduce the cost of ↵Chris Mason2008-09-251-14/+8Star
| | | | | | find_get_page Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Cache extent buffer mappingsChris Mason2008-09-251-2/+13
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Allow tree blocks larger than the page sizeChris Mason2008-09-251-25/+66
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Change the remaining radix trees used by extent-tree.c to extent_map ↵Chris Mason2008-09-251-2/+3
| | | | | | trees Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Stop using radix trees for the block group cacheChris Mason2008-09-251-2/+16
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Fix extent_buffer and extent_state leaksChris Mason2008-09-251-11/+53
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Go back to kmaps instead of page_address in extent_buffersChris Mason2008-09-251-31/+19Star
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Avoid memcpy where possible in extent_buffersChris Mason2008-09-251-30/+102
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Optimizations for the extent_buffer codeChris Mason2008-09-251-3/+8
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Create extent_buffer interface for large blocksizesChris Mason2008-09-251-16/+656
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: factor page private preparations into a helperChristoph Hellwig2008-09-251-25/+15Star
| | | | | Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: [PATCH] extent_map: add writepage_end_io hookChristoph Hellwig2007-09-111-0/+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 <hch@lst.de> Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: [PATCH] extent_map: make the writepage_io hook optionalChristoph Hellwig2007-09-111-1/+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 <hch@lst.de> Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: [PATCH] extent_map: provide generic bmapChristoph Hellwig2007-09-111-0/+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 <hch@lst.de> Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: [PATCH] extent_map: fix locking for bio completionChristoph Hellwig2007-09-111-6/+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 <hch@lst.de> Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Reorder tests in set_extent_bit to properly find holesChris Mason2007-09-111-22/+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 <chris.mason@oracle.com>
* Add support for defragging files via btrfsctl -d. Avoid OOM on extent treeChris Mason2007-09-111-6/+10
| | | | | | defrag. Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: fsx delalloc fixesChris Mason2007-08-301-2/+7
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Add file data csums back in via hooks in the extent map codeChris Mason2007-08-301-10/+84
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Add delayed allocation to the extent based page tree codeChris Mason2007-08-271-35/+112
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Extent based page cache code. This uses an rbtree of extents and testsChris Mason2007-08-271-0/+1656
instead of buffer heads. Signed-off-by: Chris Mason <chris.mason@oracle.com>
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