e58ca0203d
Fix btrfs_fill_super to return -EINVAL when no FS found
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:01 -04:00
63b10fc487
Reorder the flags field in struct btrfs_header and record a flag on writeout
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This allows detection of blocks that have already been written in the
running transaction so they can be recowed instead of modified again.
It is step one in trusting the transid field of the block pointers.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:01 -04:00
2d2ae54797
Btrfs: Add leak debugging for extent_buffer and extent_state
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This also fixes one leak around the super block when failing to mount the
FS.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:01 -04:00
83041add61
Btrfs: Use a higher default ra pages
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:01 -04:00
0416008814
Create a btrfs backing dev info
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This allows intelligent versions of unplug and congestion functions
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:01 -04:00
593060d756
Btrfs: Implement raid0 when multiple devices are present
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:01 -04:00
8a4b83cc8b
Btrfs: Add support for device scanning and detection ioctls
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:01 -04:00
239b14b32d
Btrfs: Bring back mount -o ssd optimizations
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:01 -04:00
0d81ba5dbe
Btrfs: Move device information into the super block so it can be scanned
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:01 -04:00
6324fbf334
Btrfs: Dynamic chunk and block group allocation
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:01 -04:00
0b86a832a1
Btrfs: Add support for multiple devices per filesystem
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:00 -04:00
d7fc640e6f
Btrfs: Allocator improvements
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Reduce CPU time searching for free blocks by optimizing find_first_extent_bit
Fix find_free_extent to make better use of the last_alloc hint. Before it
was often finding blocks just before the hint.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:00 -04:00
a86c12c73d
Btrfs: Create larger bios for btree blocks
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:00 -04:00
4529ba495c
Btrfs: Add data block hints to SSD mode too
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:00 -04:00
b0c68f8bed
Btrfs: Enable delalloc accounting
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:00 -04:00
6f568d35a0
Btrfs: mount -o max_inline=size to control the maximum inline extent size
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:00 -04:00
70dec8079d
Btrfs: extent_io and extent_state optimizations
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The end_bio routines are changed to take a pointer to the extent state
struct, and the state tree is walked in order to set/clear appropriate
bits as IO completes. This greatly reduces the number of rbtree searches
done by the end_bio handlers, and reduces lock contention.
The extent_io releasepage function is changed to avoid expensive searches
for locked state.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:59 -04:00
d1310b2e0c
Btrfs: Split the extent_map code into two parts
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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
e18e4809b1
Btrfs: Add mount -o ssd, which includes optimizations for seek free storage
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:59 -04:00
04005cc7a1
Btrfs: Use blk_congestion_wait on older kernels
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:59 -04:00
cee36a03e8
Rework btrfs_drop_inode to avoid scheduling
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:59 -04:00
b99aa6cb54
Btrfs: Only delete roots from sysfs when they were added to sysfs
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:59 -04:00
55c69072d6
Btrfs: Fix extent_buffer usage when nodesize != leafsize
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:59 -04:00
21ad10cf3e
Btrfs: Add flush barriers on commit
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:59 -04:00
e2008b6140
Btrfs: Add some simple throttling to wait for data=ordered and snapshot deletion
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:59 -04:00
dc17ff8f11
Btrfs: Add data=ordered support
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This forces file data extents down the disk along with the metadata that
references them. The current implementation is fairly simple, and just
writes out all of the dirty pages in an inode before the commit.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:59 -04:00
e4204dedbb
Btrfs: Change tree block csum tagging to avoid false error messages
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:59 -04:00
4313b3994d
Btrfs: Reduce stack usage in the resizer, fix 32 bit compiles
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:58 -04:00
edbd8d4efe
Btrfs: Support for online FS resize (grow and shrink)
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:58 -04:00
1832a6d5ee
Btrfs: Implement basic support for -ENOSPC
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This is intended to prevent accidentally filling the drive. A determined
user can still make things oops.
It includes some accounting of the current bytes under delayed allocation,
but this will change as things get optimized
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:58 -04:00
6da6abae02
Btrfs: Back port to 2.6.18-el kernels
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:58 -04:00
c59f8951d4
Btrfs: Add mount option to enforce a max extent size
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:58 -04:00
d10c5f31c7
Btrfs: Fix extent_map and extent_state leaks by flushing lrus on FS unmount
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:58 -04:00
b6cda9bcb4
Btrfs: Add mount -o nodatasum to turn of file data checksumming
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:58 -04:00
d8d5f3e16d
Btrfs: Add lowest key information to back refs for extent tree blocks as well.
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:58 -04:00
7bb86316c3
Btrfs: Add back pointers from extents to the btree or file referencing them
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:58 -04:00
87ee04eb0f
Btrfs: Add simple stripe size parameter
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:58 -04:00
ca6646264b
Btrfs: Add efficient dirty accounting to the extent_map tree
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:58 -04:00
448d640b66
Btrfs: Fine tune the btree writeback exclusion some more
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:58 -04:00
8790bad7fb
Btrfs: Only limit btree writeback for pdflush
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:58 -04:00
793955bca6
Btrfs: Limit btree writeback to prevent seeks
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:58 -04:00
324ae4df00
Btrfs: Add block group pinned accounting back
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This patch adds a helper function 'update_pinned_extents' to
extent-tree.c. The usage of the helper function is similar to
'update_block_group', the last parameter of the function indicates
pin vs unpin.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:57 -04:00
0da5468f47
Btrfs: Use writepages for the metadata too
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:57 -04:00
35ebb934bd
Btrfs: Fix PAGE_CACHE_SHIFT shifts on 32 bit machines
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:57 -04:00
44b36eb20b
Btrfs: Properly setup root key while reading the root
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:57 -04:00
ff79f8190b
Btrfs: Add back file data checksumming
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:57 -04:00
304fced668
Btrfs: balance_dirty_pages_ratelimited is causing problems, use nr == 1 always
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:56 -04:00
19c00ddcc3
Btrfs: Add back metadata checksumming
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:56 -04:00
810191ff30
Btrfs: extent_map optimizations to cut down on CPU usage
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:56 -04:00
4dc119046d
Btrfs: Add an extent buffer LRU to reduce radix tree hits
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:03:56 -04:00
Yan