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path: root/fs/btrfs/disk-io.c
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2008-09-25Btrfs: Create larger bios for btree blocksChris Mason1-4/+6
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Add data block hints to SSD mode tooChris Mason1-0/+1
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Enable delalloc accountingChris Mason1-0/+4
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: mount -o max_inline=size to control the maximum inline extent sizeChris Mason1-0/+1
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: extent_io and extent_state optimizationsChris Mason1-2/+2
The end_bio routines are changed to take a pointer to the extent state struct, and the state tree is walked in order to set/clear appropriate bits as IO completes. This greatly reduces the number of rbtree searches done by the end_bio handlers, and reduces lock contention. The extent_io releasepage function is changed to avoid expensive searches for locked state. Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Split the extent_map code into two partsChris Mason1-57/+66
There is now extent_map for mapping offsets in the file to disk and extent_io for state tracking, IO submission and extent_bufers. The new extent_map code shifts from [start,end] pairs to [start,len], and pushes the locking out into the caller. This allows a few performance optimizations and is easier to use. A number of extent_map usage bugs were fixed, mostly with failing to remove extent_map entries when changing the file. Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Add mount -o ssd, which includes optimizations for seek free storageChris Mason1-0/+3
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Use blk_congestion_wait on older kernelsChris Mason1-1/+6
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Rework btrfs_drop_inode to avoid schedulingChris Mason1-0/+1
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Only delete roots from sysfs when they were added to sysfsChris Mason1-1/+2
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Fix extent_buffer usage when nodesize != leafsizeChris Mason1-3/+23
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Add flush barriers on commitChris Mason1-0/+5
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Add some simple throttling to wait for data=ordered and snapshot deletionChris Mason1-0/+7
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Add data=ordered supportChris Mason1-1/+15
This forces file data extents down the disk along with the metadata that references them. The current implementation is fairly simple, and just writes out all of the dirty pages in an inode before the commit. Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Change tree block csum tagging to avoid false error messagesChris Mason1-10/+36
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Reduce stack usage in the resizer, fix 32 bit compilesChris Mason1-0/+5
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Support for online FS resize (grow and shrink)Chris Mason1-8/+24
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Implement basic support for -ENOSPCChris Mason1-1/+4
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 <[email protected]>
2008-09-25Btrfs: Back port to 2.6.18-el kernelsChris Mason1-1/+4
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Add mount option to enforce a max extent sizeChris Mason1-0/+1
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Fix extent_map and extent_state leaks by flushing lrus on FS unmountChris Mason1-0/+10
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Add mount -o nodatasum to turn of file data checksummingChris Mason1-0/+1
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Add lowest key information to back refs for extent tree blocks as well.Chris Mason1-1/+1
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Add back pointers from extents to the btree or file referencing themChris Mason1-1/+1
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Add simple stripe size parameterChris Mason1-5/+10
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Add efficient dirty accounting to the extent_map treeChris Mason1-1/+6
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Fine tune the btree writeback exclusion some moreChris Mason1-0/+4
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Only limit btree writeback for pdflushChris Mason1-1/+1
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Limit btree writeback to prevent seeksChris Mason1-0/+9
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Add block group pinned accounting backYan1-0/+1
This patch adds a helper function 'update_pinned_extents' to extent-tree.c. The usage of the helper function is similar to 'update_block_group', the last parameter of the function indicates pin vs unpin. Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Use writepages for the metadata tooChris Mason1-3/+26
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Fix PAGE_CACHE_SHIFT shifts on 32 bit machinesChris Mason1-1/+1
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Properly setup root key while reading the rootYan Zheng1-0/+1
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Add back file data checksummingChris Mason1-0/+1
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: balance_dirty_pages_ratelimited is causing problems, use nr == 1 alwaysChris Mason1-1/+1
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Add back metadata checksummingChris Mason1-60/+155
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: extent_map optimizations to cut down on CPU usageChris Mason1-10/+10
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Add an extent buffer LRU to reduce radix tree hitsChris Mason1-14/+11
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Add back the online defragging codeChris Mason1-0/+60
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Use an array of pages in the extent buffers to reduce the cost of ↵Chris Mason1-3/+3
find_get_page Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Allow tree blocks larger than the page sizeChris Mason1-34/+58
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Change the remaining radix trees used by extent-tree.c to extent_map ↵Chris Mason1-3/+6
trees Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Stop using radix trees for the block group cacheChris Mason1-2/+2
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Fix extent_buffer and extent_state leaksChris Mason1-3/+14
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Avoid memcpy where possible in extent_buffersChris Mason1-3/+3
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Create extent_buffer interface for large blocksizesChris Mason1-211/+180
Signed-off-by: Chris Mason <[email protected]>
2008-09-25Btrfs: Use balance_dirty_pages_nr on btree blocksChris Mason1-2/+3
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 <[email protected]>
2007-09-11Btrfs: Find and remove dead roots the first time a root is loaded.Chris Mason1-5/+4
Dead roots are trees left over after a crash, and they were either in the process of being removed or were waiting to be removed when the box crashed. Before, a search of the entire tree of root pointers was done on mount looking for dead roots. Now, the search is done the first time we load a root. This makes mount faster when there are a large number of snapshots, and it enables the block accounting code to properly update the block counts on the latest root as old versions of the root are reaped after a crash. Signed-off-by: Chris Mason <[email protected]>
2007-09-10Btrfs: Add more synchronization before creating a snapshotChris Mason1-0/+1
File data checksums are only done during writepage, so we have to make sure all pages are written when the snapshot is taken. This also adds some locking so that new writes don't race in and add new dirty pages. Signed-off-by: Chris Mason <[email protected]>
2007-08-29Btrfs: Add per-root block accounting and sysfs entriesJosef Bacik1-2/+29
Signed-off-by: Chris Mason <[email protected]>
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