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* Btrfs: Compile fixes for 2.6.24-rc1Chris Mason2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Fix ENOTEMPTY check in btrfs_rmdirYan2008-09-25
| | | | | | | | | | | The ENOTEMPTY check in btrfs_rmdir isn't reliable. It's possible that the backward search finds . or .. at first, then some other directory entry. In that case, btrfs_rmdir delete . or .. improperly. The patch also fixes a fs_mutex unlock issue in btrfs_rmdir. -- Signed-off-by: Chris Mason <chris.mason@oracle.com>
* btrfs_inode_by_name return random value.Yan2008-09-25
| | | | | | | | | When inode is found, the return value is from the uninitialized variable 'ret'. -- Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Tune the automatic defrag codeChris Mason2008-09-25
| | | | | | | | | | | 1) Forced defrag wasn't working properly (btrfsctl -d) because some cache only checks were incorrect. 2) Defrag only the leaves unless in forced defrag mode. 3) Don't use complex logic to figure out if a leaf is needs defrag Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Fix for insert_inline_extent to handle offset != 0Yan2008-09-25
| | | | | | | | | This modifies inline extent size calculation, so that insert_inline_extent can handle the case that parameter 'offset' is not zero; it also a few codes to zero uninitialized area in inline extent. Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Fix split_leaf to detect when it is extending an itemChris Mason2008-09-25
| | | | | | | | | When making room for a new item, it is ok to create an empty leaf, but when making room to extend an item, split_leaf needs to make sure it keeps the item we're extending in the path and make sure we don't end up with an empty leaf. Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Off by one fixes in extent_map.cYan2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Optimize csum insertion to create larger items when possibleChris Mason2008-09-25
| | | | | | | This reduces the number of calls to btrfs_extend_item and greatly lowers the cpu usage while writing large files. Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Fix split_leaf to avoid incorrect double splitsChris Mason2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Avoid recursive KM_USER1 mappings in copy_extent_bufferChris Mason2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: CPU usage optimizations in push and the extent_map codeChris Mason2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Fix read/write_extent_buffer to use KM_USER1 instead of KM_USER0Chris Mason2008-09-25
| | | | | | This avoids recursive use of KM_USER0 during btrfs_file_write Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: sysfs compile fixupJens Axboe2008-09-25
| | | | | | | | | | Just use kobject_set_name(), that works in all kernels (I think...). Kernels newer than 2.6.23 currently fail with: /home/axboe/git/btrfs/btrfs-unstable/sysfs.c:188: error: unknown field 'name' specified in initializer Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: KM_IRQ0 usage in end_io handlingJens Axboe2008-09-25
| | | | | | | | endio handling is typically called with interrupts disabled, but can also be called with it enabled. So save interrupts before using KM_IRQ0 to be completely safe. Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Fix bi_end_io() functions on > 2.6.23 kernelsJens Axboe2008-09-25
| | | | | | | 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 Axboe2008-09-25
| | | | | | 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: Properly setup root key while reading the rootYan Zheng2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Fix typo: owner is a 64 bit fieldChris Mason2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Default to 8k max packed tailsChris Mason2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Defrag only leaves, and only when the parent node has a single objectidChris Mason2008-09-25
| | | | | | | This allows us to defrag huge directories, but skip the expensive defrag case in more common usage, where it does not help as much. Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Add back file data checksummingChris Mason2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Defrag: only walk into nodes with the defrag bit setChris Mason2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: balance_dirty_pages_ratelimited is causing problems, use nr == 1 alwaysChris Mason2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Large block related defrag optimizationsChris Mason2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Add back metadata checksummingChris Mason2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Breakout BTRFS_SETGET_FUNCS into a separate C file, the inlines were too big.Chris Mason2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: extent_map optimizations to cut down on CPU usageChris Mason2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Allow tails larger than one pageChris Mason2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Add an extent buffer LRU to reduce radix tree hitsChris Mason2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Fix allocation routines to avoid intermixing data and metadata ↵Chris Mason2008-09-25
| | | | | | allocations Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Add back the online defragging codeChris Mason2008-09-25
| | | | 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 Mason2008-09-25
| | | | | | find_get_page Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Cache extent buffer mappingsChris Mason2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Allow tree blocks larger than the page sizeChris Mason2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Change the remaining radix trees used by extent-tree.c to extent_map ↵Chris Mason2008-09-25
| | | | | | trees Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Stop using radix trees for the block group cacheChris Mason2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Fix extent_buffer and extent_state leaksChris Mason2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Go back to kmaps instead of page_address in extent_buffersChris Mason2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Avoid memcpy where possible in extent_buffersChris Mason2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Optimizations for the extent_buffer codeChris Mason2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Create extent_buffer interface for large blocksizesChris Mason2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* btrfs_get_extent should treat inline extents as though they hold a whole blockChris Mason2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: factor page private preparations into a helperChristoph Hellwig2008-09-25
| | | | | Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Fix double free and off by one in inode.cYan2008-09-25
| | | | | | | The first change removes potential double free, the second fix a off by one error. Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: truncate: don't update inode->i_blocks when extent is a holeYan2008-09-25
| | | | | | | | I think check whether extent is a hole before update 'inode->i_blocks' is unconditional required. (original codes check it only when del_item isn't equal to 0) Signed-off-by: Chris Mason <chris.mason@oracle.com>
* create btrfs_path slab with the correct sizeYan2008-09-25
| | | | Signed-off-by: Chris Mason <chris.mason@oracle.com>
* fix found_type decrement in btrfs_truncate_in_transYan2008-09-25
| | | | | | | found_type has already been decreased by codes above the change, I think decrease it by one again doesn't make sense. Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Fix duplicate ENOSPC checks in find_free_extentChris Mason2008-09-25
| | | | | | | | find_free_extent would fail to wrap around to the start of the drive because it was doing the enospc case checking twice in some cases, causing it to return -ENOSPC early. Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Use balance_dirty_pages_nr on btree blocksChris Mason2008-09-25
| | | | | | | | btrfs_btree_balance_dirty is changed to pass the number of pages dirtied for more accurate dirty throttling. This lets the VM make better decisions about when to force some writeback. Signed-off-by: Chris Mason <chris.mason@oracle.com>
* Btrfs: Fix cache_block_group to catch holes at the start of the groupYan2007-09-14
| | | | | | | Cache block group was overly complex and missed free blocks at the very start of the group. This patch simplifies things significantly. Signed-off-by: Chris Mason <chris.mason@oracle.com>
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