Commit Graph

265 Commits

Author SHA1 Message Date
Christoph Hellwig
d396c6f554 Btrfs: [PATCH] extent_map: provide generic bmap
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>
2007-09-10 20:02:30 -04:00
Christoph Hellwig
90f1c19a9f Btrfs: [PATCH] extent_map: fix locking for bio completion
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>
2007-09-10 20:02:27 -04:00
Christoph Hellwig
9433063bcb [PATCH] btrfs: fix printk format warning
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-09-10 20:02:22 -04:00
Chris Mason
a8c450b211 Btrfs: Reorder tests in set_extent_bit to properly find holes
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>
2007-09-10 20:00:27 -04:00
Chris Mason
011410bd85 Btrfs: Add more synchronization before creating a snapshot
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
Chris Mason
86479a04ee Add support for defragging files via btrfsctl -d. Avoid OOM on extent tree
defrag.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-09-10 19:58:16 -04:00
Chris Mason
8e21528f87 Btrfs: remove extra drop_extent_cache call
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-30 12:16:51 -04:00
Chris Mason
2bf5a725a3 Btrfs: fsx delalloc fixes
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-30 11:54:02 -04:00
Chris Mason
07157aacb1 Btrfs: Add file data csums back in via hooks in the extent map code
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-30 08:50:51 -04:00
Chris Mason
95e0528919 Btrfs: Use mount -o subvol to select the subvol directory instead of dev:
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-29 09:11:44 -04:00
Yan
e9fe395e47 Btrfs: Fix oopsen in extent_tree.c during enospc
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-29 09:11:44 -04:00
Yan
4b82d6e4a5 Btrfs: Add mount into directory support
Modified form of original patch from Christoph Hellwig to make btrfs
mount into the default subvolume by default.

mount /dev/somedevice:subvolumename to get other subvolumes or
mount /dev/somedevice:. to get the root

Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-29 09:11:44 -04:00
Yan
1b4ab1bb4b Btrfs: Fix mknod to properly send rdev info back to disk
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-29 09:11:44 -04:00
Yan
252c38f069 Btrfs: ctree.c cleanups
Fixup a few buffer_head release errors, and fix an off by one in
balance_node_right.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-29 09:11:44 -04:00
Josef Bacik
58176a9604 Btrfs: Add per-root block accounting and sysfs entries
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-29 15:47:34 -04:00
Chris Mason
b888db2bd7 Btrfs: Add delayed allocation to the extent based page tree code
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-27 16:49:44 -04:00
Chris Mason
a52d9a8033 Btrfs: Extent based page cache code. This uses an rbtree of extents and tests
instead of buffer heads.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-27 16:49:44 -04:00
Chris Mason
83df7c1d8b Btrfs: Make sure to cow the root during a snapshot
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-27 16:49:44 -04:00
Chris Mason
2cc58cf24f Btrfs: Do more extensive readahead during tree searches
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-27 16:49:44 -04:00
Yan
3202061128 fix block readahead in btrfs_next_leaf
Send the correct slot down to reada_for_search

Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-27 15:17:54 -04:00
Josef Bacik
15ee9bc7ed Btrfs: delay commits during fsync to allow more writers
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-10 16:22:09 -04:00
Chris Mason
f2183bde1a Btrfs: Add BH_Defrag to mark buffers that are in need of defragging
This allows the tree walking code to defrag only the newly allocated
buffers, it seems to be a good balance between perfect defragging and the
performance hit of repeatedly reallocating blocks.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-10 14:42:37 -04:00
Chris Mason
e9d0b13b5b Btrfs: Btree defrag on the extent-mapping tree as well
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-10 14:06:19 -04:00
Chris Mason
409eb95d7f Btrfs: Further reduce the concurrency penalty of defrag and drop_snapshot
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-08 20:17:12 -04:00
Chris Mason
26b8003f10 Btrfs: Replace extent tree preallocation code with some bit radix magic.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-08 20:17:12 -04:00
Chris Mason
f4468e94c8 Btrfs: Let some locks go during defrag and snapshot dropping
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-08 10:08:58 -04:00
Chris Mason
6702ed490c Btrfs: Add run time btree defrag, and an ioctl to force btree defrag
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
Chris Mason
3c69faecb8 Btrfs: Fold some btree readahead routines into something more generic.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-08-07 15:52:22 -04:00
Chris Mason
9f3a742736 Btrfs: Do snapshot deletion in smaller chunks.
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
Joel Becker
8578f0f1fd Btrfs: cleaner make clean
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-07-25 14:04:51 -04:00
Chris Mason
92fee66d49 Btrfs: deal with api changes in 2.6.23-rc1
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-07-25 12:31:35 -04:00
Josef Bacik
618e21d595 Btrfs: Implement mknod
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-07-11 10:18:17 -04:00
Aneesh
a1f396304f Btrfs: Some code cleanups
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-07-11 10:03:27 -04:00
Zach Brown
ec6b910fb3 Btrfs: trivial include fixups
Almost none of the files including module.h need to do so,
remove them.

Include sched.h in extent-tree.c to silence a warning about cond_resched()
being undeclared.

Signed-off-by: Zach Brown <zach.brown@oracle.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-07-11 10:00:37 -04:00
Chris Mason
ccd467d60e Btrfs: crash recovery fixes
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-28 15:57:36 -04:00
Chris Mason
f2654de42a Btrfs: Allow find_free_extent callers to pass in an exclusion range
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-26 12:20:46 -04:00
Chris Mason
4b52dff6d3 Btrfs: Fix super block updates during transaction commit
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
Chris Mason
79c44584ea Btrfs: Fix mtime and ctime updates on parent dirs
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-25 10:09:33 -04:00
Chris Mason
22bb92f376 Btrfs: Documentation update
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-22 14:49:31 -04:00
Chris Mason
5eda7b5e9b Btrfs: Add the ability to find and remove dead roots after a crash.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-22 14:16:25 -04:00
Chris Mason
54aa1f4dfd Btrfs: Audit callers and return codes to make sure -ENOSPC gets up the stack
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-22 14:16:25 -04:00
Chris Mason
11bd143fc8 Btrfs: Switch to libcrc32c to avoid problems with cryptomgr on highmem machines
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-22 14:16:24 -04:00
Chris Mason
e011599b0f Btrfs: reada while dropping snapshots
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-19 16:23:05 -04:00
Chris Mason
85e55b13e4 Btrfs: cache the extent tree preallocation
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-19 15:50:51 -04:00
Chris Mason
8c2383c3dd Subject: Rework btrfs_file_write to only allocate while page locks are held
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-18 09:57:58 -04:00
Chris Mason
9ebefb180b Btrfs: patch queue: page_mkwrite
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-15 13:50:00 -04:00
Aneesh
f1ace244c8 btrfs: Code cleanup
Attaching below is some of the code cleanups that i came across while
reading the code.

a) alloc_path already calls init_path.
b) Mention that btrfs_inode is the in memory copy.Ext4 have ext4_inode_info as
the in memory copy ext4_inode as the disk copy

Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-13 16:18:26 -04:00
Chris Mason
340887809d Btrfs: i386 fixes from axboe
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-12 11:36:58 -04:00
Chris Mason
6cbd557078 Btrfs: add GPLv2
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-12 09:07:21 -04:00
Chris Mason
8a712645c3 Btrfs: no slashes in subvolume names
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-12 08:21:35 -04:00
Chris Mason
5af3981c18 Btrfs: printk fixes
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-12 07:50:13 -04:00
Chris Mason
84f54cfa78 Btrfs: 64 bit div fixes
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-12 07:43:08 -04:00
Chris Mason
39279cc3d2 Btrfs: split up super.c
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-12 06:35:45 -04:00
Chris Mason
5276aedab0 Btrfs: fix oops after block group lookup
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-11 21:33:38 -04:00
Chris Mason
0cf6c62017 Btrfs: remove device tree
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-09 09:22:25 -04:00
Chris Mason
ad693af684 Btrfs: reap dead roots right after commit
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-09 08:19:57 -04:00
Chris Mason
facda1e787 Btrfs: get forced transaction commits via workqueue
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-08 18:11:48 -04:00
Chris Mason
08607c1b18 Btrfs: add compat ioctl
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-08 15:33:54 -04:00
Chris Mason
fabb568183 Btrfs: d_type optimization
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-06-07 22:13:21 -04:00
Chris Mason
fbdc762b4e Btrfs: use a separate flag for search_start vs a hint in find_free_extent
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-30 10:22:12 -04:00
Chris Mason
1e2677e000 Btrfs: block group switching
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-29 16:52:18 -04:00
Chris Mason
1de037a43e Btrfs: fixup various fsx failures
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-29 15:17:08 -04:00
Chris Mason
3a68637562 Btrfs: sparse files!
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-24 13:35:57 -04:00
Chris Mason
2b8d99a723 Btrfs: symlinks and hard links
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-24 08:34:10 -04:00
Chris Mason
e06afa839e Btrfs: rename
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-23 15:44:28 -04:00
Chris Mason
f9f3c6b666 Btrfs: 2.6.21-git fixes
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-21 14:05:12 -04:00
Chris Mason
de428b63b1 Btrfs: allocator optimizations, truncate readahead
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-18 13:28:27 -04:00
Chris Mason
098f59c251 Btrfs: patch queue: fix corruption when splitting large items
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-11 11:33:21 -04:00
Chris Mason
509659cde5 Btrfs: switch to crc32c instead of sha256
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-10 12:36:17 -04:00
Chris Mason
8d7be552a7 Btrfs: fix check_node and check_leaf to use less cpu
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-10 11:24:42 -04:00
Chris Mason
e37c9e6921 Btrfs: many allocator fixes, pretty solid
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-09 20:13:14 -04:00
Chris Mason
3e1ad54fe2 Btrfs: allocator and tuning
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-07 20:03:49 -04:00
Chris Mason
be74417553 Btrfs: more allocator enhancements
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-06 10:15:01 -04:00
Chris Mason
be08c1b9f8 Btrfs: early metadata/data split
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-03 09:06:49 -04:00
Chris Mason
35b7e47610 Btrfs: fix page cache memory leak
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-02 15:53:43 -04:00
Chris Mason
090d18753c Btrfs: directory readahead
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-05-01 08:53:32 -04:00
Chris Mason
31f3c99b73 Btrfs: allocator improvements, inode block groups
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-30 15:25:45 -04:00
Chris Mason
308535a05e Btrfs: prealloc more blocks for the extent map
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-28 15:17:08 -04:00
Chris Mason
7c4452b9a6 Btrfs: smarter transaction writeback
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-28 09:29:35 -04:00
Chris Mason
06a2f9fa4c Btrfs: try to drop dead cow pages from ram
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-28 08:48:10 -04:00
Chris Mason
28b8bb9e00 Btrfs: allocator tweaks
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-27 11:42:05 -04:00
Chris Mason
cd1bc4653d Btrfs: more block allocator work
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-27 10:08:34 -04:00
Chris Mason
9078a3e1e4 Btrfs: start of block group code
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-26 16:46:15 -04:00
Chris Mason
f2458e1d8c Btrfs: change around extent-tree prealloc
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-25 15:52:25 -04:00
Chris Mason
f68cad0f9e Btrfs: fixup dirty_inode related deadlocks
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-24 12:44:26 -04:00
Chris Mason
c62a1920ce Btrfs: get rid of the extent_item type field
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-24 12:07:39 -04:00
Chris Mason
b51338628f Btrfs: add dirty_inode call
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-24 11:52:22 -04:00
Chris Mason
5e82849e63 Btrfs: new subvolume oops fix
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-23 19:10:49 -04:00
Chris Mason
5d0c3e60fe Btrfs: fix extent owner/type setting on extent tree blocks
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-23 17:01:05 -04:00
Chris Mason
4d77567309 Btrfs: add owner and type fields to the extents aand block headers
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-20 20:23:12 -04:00
Chris Mason
33ade1f826 Btrfs: node balance optimizations
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-20 13:48:57 -04:00
Chris Mason
e66f709b15 Btrfs: write barriers on commit, balance level before split
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-20 13:16:02 -04:00
Chris Mason
8fd17795b2 Btrfs: early fsync support
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-19 21:01:03 -04:00
Chris Mason
7e38180e20 Btrfs: directory inode index is back
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-19 15:36:27 -04:00
Chris Mason
236454dfff Btrfs: many file_write fixes, inline data
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-19 13:37:44 -04:00
Chris Mason
a429e51371 Btrfs: working file_write, reorganized key flags
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-18 16:15:28 -04:00
Chris Mason
70b2befd0c Btrfs: rework csums and extent item ordering
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-17 15:39:32 -04:00
Chris Mason
b18c668581 Btrfs: progress on file_write
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-17 13:26:50 -04:00
Chris Mason
6567e837df Btrfs: early work to file_write in big extents
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-16 09:22:45 -04:00
Chris Mason
b4100d6424 Btrfs: add a device id to device items
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2007-04-12 12:14:00 -04:00