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>
2007-09-14 10:22:47 -04:00
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>
2007-09-11 11:15:39 -04:00
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>
2007-09-10 19:58:36 -04:00
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>
2007-08-29 09:11:44 -04:00
58176a9604
Btrfs: Add per-root block accounting and sysfs entries
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-29 15:47:34 -04:00
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>
2007-08-27 16:49:44 -04:00
15ee9bc7ed
Btrfs: delay commits during fsync to allow more writers
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-10 16:22:09 -04:00
e9d0b13b5b
Btrfs: Btree defrag on the extent-mapping tree as well
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-10 14:06:19 -04:00
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>
2007-08-08 20:17:12 -04:00
f4468e94c8
Btrfs: Let some locks go during defrag and snapshot dropping
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-08 10:08:58 -04:00
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>
2007-08-07 16:15:09 -04:00
3c69faecb8
Btrfs: Fold some btree readahead routines into something more generic.
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-07 15:52:22 -04:00
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>
2007-08-07 15:52:19 -04:00
ccd467d60e
Btrfs: crash recovery fixes
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-28 15:57:36 -04:00
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>
2007-06-26 10:06:50 -04:00
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>
2007-06-22 14:16:25 -04:00
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>
2007-06-22 14:16:25 -04:00
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>
2007-06-22 14:16:24 -04:00
9ebefb180b
Btrfs: patch queue: page_mkwrite
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-15 13:50:00 -04:00
6cbd557078
Btrfs: add GPLv2
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-12 09:07:21 -04:00
39279cc3d2
Btrfs: split up super.c
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-12 06:35:45 -04:00
5276aedab0
Btrfs: fix oops after block group lookup
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-11 21:33:38 -04:00
0cf6c62017
Btrfs: remove device tree
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-09 09:22:25 -04:00
facda1e787
Btrfs: get forced transaction commits via workqueue
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-08 18:11:48 -04:00
08607c1b18
Btrfs: add compat ioctl
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-08 15:33:54 -04:00
fabb568183
Btrfs: d_type optimization
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-07 22:13:21 -04:00
1e2677e000
Btrfs: block group switching
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-29 16:52:18 -04:00
1de037a43e
Btrfs: fixup various fsx failures
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-29 15:17:08 -04:00
3a68637562
Btrfs: sparse files!
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-24 13:35:57 -04:00
e06afa839e
Btrfs: rename
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-23 15:44:28 -04:00
f9f3c6b666
Btrfs: 2.6.21-git fixes
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-21 14:05:12 -04:00
de428b63b1
Btrfs: allocator optimizations, truncate readahead
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-18 13:28:27 -04:00
509659cde5
Btrfs: switch to crc32c instead of sha256
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-10 12:36:17 -04:00
e37c9e6921
Btrfs: many allocator fixes, pretty solid
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-09 20:13:14 -04:00
3e1ad54fe2
Btrfs: allocator and tuning
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-07 20:03:49 -04:00
be74417553
Btrfs: more allocator enhancements
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-06 10:15:01 -04:00
be08c1b9f8
Btrfs: early metadata/data split
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-03 09:06:49 -04:00
35b7e47610
Btrfs: fix page cache memory leak
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-02 15:53:43 -04:00
31f3c99b73
Btrfs: allocator improvements, inode block groups
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-30 15:25:45 -04:00
cd1bc4653d
Btrfs: more block allocator work
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-27 10:08:34 -04:00
9078a3e1e4
Btrfs: start of block group code
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-26 16:46:15 -04:00
f2458e1d8c
Btrfs: change around extent-tree prealloc
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-25 15:52:25 -04:00
c62a1920ce
Btrfs: get rid of the extent_item type field
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-24 12:07:39 -04:00
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>
2007-04-20 20:23:12 -04:00
e66f709b15
Btrfs: write barriers on commit, balance level before split
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-20 13:16:02 -04:00
8fd17795b2
Btrfs: early fsync support
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-19 21:01:03 -04:00
7e38180e20
Btrfs: directory inode index is back
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-19 15:36:27 -04:00
236454dfff
Btrfs: many file_write fixes, inline data
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-19 13:37:44 -04:00
a429e51371
Btrfs: working file_write, reorganized key flags
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-18 16:15:28 -04:00
70b2befd0c
Btrfs: rework csums and extent item ordering
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-17 15:39:32 -04:00
Christoph Hellwig