479965d66e
Btrfs: Optimizations for the extent_buffer code
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
17 years ago
5f39d397df
Btrfs: Create extent_buffer interface for large blocksizes
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
17 years ago
34287aa360
Btrfs: use unlocked_ioctl
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No reason to grab the BKL before calling into the btrfs ioctl code.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
5ce14bbcdd
Btrfs: Find and remove dead roots the first time a root is loaded.
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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 <chris.mason@oracle.com>
18 years ago
011410bd85
Btrfs: Add more synchronization before creating a snapshot
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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 <chris.mason@oracle.com>
18 years ago
95e0528919
Btrfs: Use mount -o subvol to select the subvol directory instead of dev:
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
58176a9604
Btrfs: Add per-root block accounting and sysfs entries
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
a52d9a8033
Btrfs: Extent based page cache code. This uses an rbtree of extents and tests
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instead of buffer heads.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
15ee9bc7ed
Btrfs: delay commits during fsync to allow more writers
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
e9d0b13b5b
Btrfs: Btree defrag on the extent-mapping tree as well
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
26b8003f10
Btrfs: Replace extent tree preallocation code with some bit radix magic.
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
f4468e94c8
Btrfs: Let some locks go during defrag and snapshot dropping
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
6702ed490c
Btrfs: Add run time btree defrag, and an ioctl to force btree defrag
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This adds two types of btree defrag, a run time form that tries to
defrag recently allocated blocks in the btree when they are still in ram,
and an ioctl that forces defrag of all btree blocks.
File data blocks are not defragged yet, but this can make a huge difference
in sequential btree reads.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
3c69faecb8
Btrfs: Fold some btree readahead routines into something more generic.
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
9f3a742736
Btrfs: Do snapshot deletion in smaller chunks.
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Before, snapshot deletion was a single atomic unit. This caused considerable
lock contention and required an unbounded amount of space. Now,
the drop_progress field in the root item is used to indicate how far along
snapshot deletion is, and to resume where it left off.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
ccd467d60e
Btrfs: crash recovery fixes
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
4b52dff6d3
Btrfs: Fix super block updates during transaction commit
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The super block written during commit was not consistent with the state of
the trees. This change adds an in-memory copy of the super so that we can
make sure to write out consistent data during a commit.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
5eda7b5e9b
Btrfs: Add the ability to find and remove dead roots after a crash.
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
54aa1f4dfd
Btrfs: Audit callers and return codes to make sure -ENOSPC gets up the stack
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
11bd143fc8
Btrfs: Switch to libcrc32c to avoid problems with cryptomgr on highmem machines
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
9ebefb180b
Btrfs: patch queue: page_mkwrite
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
6cbd557078
Btrfs: add GPLv2
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
39279cc3d2
Btrfs: split up super.c
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
5276aedab0
Btrfs: fix oops after block group lookup
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
0cf6c62017
Btrfs: remove device tree
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
facda1e787
Btrfs: get forced transaction commits via workqueue
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
08607c1b18
Btrfs: add compat ioctl
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
fabb568183
Btrfs: d_type optimization
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
1e2677e000
Btrfs: block group switching
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
1de037a43e
Btrfs: fixup various fsx failures
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
3a68637562
Btrfs: sparse files!
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
e06afa839e
Btrfs: rename
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
f9f3c6b666
Btrfs: 2.6.21-git fixes
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
de428b63b1
Btrfs: allocator optimizations, truncate readahead
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
509659cde5
Btrfs: switch to crc32c instead of sha256
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
e37c9e6921
Btrfs: many allocator fixes, pretty solid
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
3e1ad54fe2
Btrfs: allocator and tuning
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
be74417553
Btrfs: more allocator enhancements
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
be08c1b9f8
Btrfs: early metadata/data split
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
35b7e47610
Btrfs: fix page cache memory leak
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
31f3c99b73
Btrfs: allocator improvements, inode block groups
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
cd1bc4653d
Btrfs: more block allocator work
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
9078a3e1e4
Btrfs: start of block group code
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
f2458e1d8c
Btrfs: change around extent-tree prealloc
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
c62a1920ce
Btrfs: get rid of the extent_item type field
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
4d77567309
Btrfs: add owner and type fields to the extents aand block headers
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
e66f709b15
Btrfs: write barriers on commit, balance level before split
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
8fd17795b2
Btrfs: early fsync support
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
7e38180e20
Btrfs: directory inode index is back
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
236454dfff
Btrfs: many file_write fixes, inline data
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
18 years ago
Chris Mason