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960 commits

Author SHA1 Message Date
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