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e1b81e6761
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115 Commits

Author SHA1 Message Date
Mingming
e1b81e6761 btrfs delete ordered inode handling fix 
Use btrfs_release_file instead of a put_inode call

Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:04:03 -04:00
Chris Mason
dfe2502068 Btrfs: Add mount -o degraded to allow mounts to continue with missing devices 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:04:03 -04:00
Chris Mason
a061fc8da7 Btrfs: Add support for online device removal 
This required a few structural changes to the code that manages bdev pointers:

The VFS super block now gets an anon-bdev instead of a pointer to the
lowest bdev.  This allows us to avoid swapping the super block bdev pointer
around at run time.

The code to read in the super block no longer goes through the extent
buffer interface.  Things got ugly keeping the mapping constant.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:04:02 -04:00
Chris Mason
788f20eb5a Btrfs: Add new ioctl to add devices 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:04:02 -04:00
Yan
e58ca0203d Fix btrfs_fill_super to return -EINVAL when no FS found 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:04:01 -04:00
Chris Mason
8a4b83cc8b Btrfs: Add support for device scanning and detection ioctls 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:04:01 -04:00
Chris Mason
a9218f6b00 Add /dev/btrfs-control for device scanning ioctls 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:04:01 -04:00
Chris Mason
6885f308b5 Btrfs: Misc 2.6.25 updates 
Remove the btrfs read_inode method, and use save_mount_options

Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:04:00 -04:00
Chris Mason
6f568d35a0 Btrfs: mount -o max_inline=size to control the maximum inline extent size 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:04:00 -04:00
Chris Mason
d1310b2e0c Btrfs: Split the extent_map code into two parts 
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 <chris.mason@oracle.com>
 2008-09-25 11:03:59 -04:00
Yan
ed0dab6b86 Btrfs: Add basic lockfs calls 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:59 -04:00
Chris Mason
e18e4809b1 Btrfs: Add mount -o ssd, which includes optimizations for seek free storage 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:59 -04:00
Chris Mason
2da98f003f Btrfs: Run igrab on data=ordered inodes to prevent deadlocks during writeout 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:59 -04:00
Chris Mason
61295eb866 Btrfs: Add drop inode func to avoid data=ordered deadlock 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:59 -04:00
Chris Mason
21ad10cf3e Btrfs: Add flush barriers on commit 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:59 -04:00
Chris Mason
8f662a76c6 Btrfs: Add readahead to the online shrinker, and a mount -o alloc_start= for testing 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:58 -04:00
Chris Mason
edbd8d4efe Btrfs: Support for online FS resize (grow and shrink) 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:58 -04:00
Chris Mason
6da6abae02 Btrfs: Back port to 2.6.18-el kernels 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:58 -04:00
Chris Mason
c59f8951d4 Btrfs: Add mount option to enforce a max extent size 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:58 -04:00
Chris Mason
be20aa9dba Btrfs: Add mount option to turn off data cow 
A number of workloads do not require copy on write data or checksumming.
mount -o nodatasum to disable checksums and -o nodatacow to disable
both copy on write and checksumming.

In nodatacow mode, copy on write is still performed when a given extent
is under snapshot.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:58 -04:00
Chris Mason
b6cda9bcb4 Btrfs: Add mount -o nodatasum to turn of file data checksumming 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:58 -04:00
Wyatt Banks
2f4cbe6442 Btrfs: Return value checking in module init 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:58 -04:00
Josef Bacik
5103e947b9 xattr support for btrfs 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:57 -04:00
Chris Mason
3326d1b07c Btrfs: Allow tails larger than one page 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Chris Mason
db94535db7 Btrfs: Allow tree blocks larger than the page size 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Chris Mason
5f39d397df Btrfs: Create extent_buffer interface for large blocksizes 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -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
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
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
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
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
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
6cbd557078 Btrfs: add GPLv2 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-06-12 09:07:21 -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
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
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
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
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