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Chris Mason [Tue, 8 Jan 2008 20:46:31 +0000 (15:46 -0500)]
Btrfs: Disable btree reada during extent backref lookups.
This reada is generally not effective.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 8 Jan 2008 20:46:30 +0000 (15:46 -0500)]
Btrfs: Add some simple throttling to wait for data=ordered and snapshot deletion
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 8 Jan 2008 20:46:30 +0000 (15:46 -0500)]
Btrfs: Move snapshot creation to commit time
It is very difficult to create a consistent snapshot of the btree when
other writers may update the btree before the commit is done.
This changes the snapshot creation to happen during the commit, while
no other updates are possible.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 8 Jan 2008 20:46:30 +0000 (15:46 -0500)]
Btrfs: Add data=ordered support
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>
Chris Mason [Tue, 8 Jan 2008 20:46:27 +0000 (15:46 -0500)]
Btrfs: Change tree block csum tagging to avoid false error messages
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 4 Jan 2008 21:47:16 +0000 (16:47 -0500)]
Btrfs: resizer: don't hold the fs_mutex for long periods of time
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 4 Jan 2008 14:34:54 +0000 (09:34 -0500)]
Properly call btrfs_search_slot while shrinking
The shrinking code used btrfs_next_leaf to find the next item, but
this does not cow the blocks it touches. This fix calls search_slot after
finding the next item to do appropriate cow and balancing.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 3 Jan 2008 20:44:57 +0000 (15:44 -0500)]
Btrfs: Lower the max inline size to 8k
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 3 Jan 2008 19:51:00 +0000 (14:51 -0500)]
Btrfs: Change st_blocksize to 4k
Some programs (python) do rwm cycles at the granularity returned by
stat.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Yan [Thu, 3 Jan 2008 19:14:39 +0000 (14:14 -0500)]
Btrfs: Properly handle overlapping extent in shrink_extent_tree
The patch fixes the overlapping extent issue in shrink_extent_tree.
It checks whether there is an overlapping extent by using
find_previous_extent. If there is an overlapping extent, it setups
key.objectid and cur_byte properly.
---
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Yan [Thu, 3 Jan 2008 18:56:30 +0000 (13:56 -0500)]
Btrfs: Add a helper that finds previous extent item
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 3 Jan 2008 18:46:11 +0000 (13:46 -0500)]
Btrfs: Fix lock ordering of the snapshot semaphore against the page lock
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 3 Jan 2008 18:23:19 +0000 (13:23 -0500)]
count_snapshots: Properly update the leaf pointer after btrfs_next_leaf
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 3 Jan 2008 15:01:48 +0000 (10:01 -0500)]
Btrfs: Force inlining off in a few places to save stack usage
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 3 Jan 2008 14:22:38 +0000 (09:22 -0500)]
Btrfs: 32 bit compile fixes for the resizer and enospc checks
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 3 Jan 2008 14:08:48 +0000 (09:08 -0500)]
Btrfs: Reduce stack usage in the resizer, fix 32 bit compiles
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 3 Jan 2008 14:08:27 +0000 (09:08 -0500)]
Btrfs: Explicitly send a root objectid to count_snapshots_in_path
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Wed, 2 Jan 2008 15:01:11 +0000 (10:01 -0500)]
Btrfs: Add readahead to the online shrinker, and a mount -o alloc_start= for testing
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 21 Dec 2007 21:36:24 +0000 (16:36 -0500)]
Btrfs: Fix NULL block groups on reading the inode
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 21 Dec 2007 21:27:24 +0000 (16:27 -0500)]
Btrfs: Support for online FS resize (grow and shrink)
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 21 Dec 2007 21:27:23 +0000 (16:27 -0500)]
Btrfs: Fix an off by one in the extent_map prepare write code
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 21 Dec 2007 21:27:21 +0000 (16:27 -0500)]
Btrfs: Implement basic support for -ENOSPC
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>
Chris Mason [Fri, 21 Dec 2007 21:24:26 +0000 (16:24 -0500)]
Btrfs: Less aggressive readahead on deletes
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Wed, 19 Dec 2007 14:11:48 +0000 (09:11 -0500)]
Btrfs: Fix nodatacow extent lookup
Yan Zheng noticed the offset into the extent was incorrectly being added to the
extent start before trying to find it in the extent allocation tree.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 18 Dec 2007 21:25:45 +0000 (16:25 -0500)]
Btrfs: Fix delayed allocation to avoid missing delalloc extents
find_lock_delalloc_range could exit out too early
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 18 Dec 2007 21:25:45 +0000 (16:25 -0500)]
kmalloc a few large stack objects in the btrfs_ioctl path
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 18 Dec 2007 21:15:09 +0000 (16:15 -0500)]
Btrfs: Back port to 2.6.18-el kernels
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 18 Dec 2007 01:14:04 +0000 (20:14 -0500)]
Btrfs: Add mount option to enforce a max extent size
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 18 Dec 2007 01:14:04 +0000 (20:14 -0500)]
Btrfs: Fix extent_map and extent_state leaks by flushing lrus on FS unmount
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 18 Dec 2007 01:14:01 +0000 (20:14 -0500)]
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>
Chris Mason [Fri, 14 Dec 2007 20:30:32 +0000 (15:30 -0500)]
Btrfs: Add mount -o nodatasum to turn of file data checksumming
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 14 Dec 2007 17:56:58 +0000 (12:56 -0500)]
Fixes for loopback files in btrfs
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Yan [Fri, 14 Dec 2007 16:14:42 +0000 (11:14 -0500)]
Off by one fix for btrfs_drop_extents
One of my old patches introduces a new bug to
btrfs_drop_extents(changeset 275). Inline extents are not truncated
properly when "extent_end == end", it can trigger the BUG_ON at
file.c:600. I hope I don't introduce new bug this time.
---
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 13 Dec 2007 16:13:32 +0000 (11:13 -0500)]
Btrfs: Reorder extent back refs to differentiate btree blocks from file data
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 13 Dec 2007 14:48:07 +0000 (09:48 -0500)]
Fix btrfs_inc_ref to add backref hints
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 13 Dec 2007 14:06:59 +0000 (09:06 -0500)]
Btrfs: Fix typo in .. check (thanks Yan)
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 13 Dec 2007 14:06:01 +0000 (09:06 -0500)]
Btrfs: Add backrefs for symbolic link inodes
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 13 Dec 2007 14:02:46 +0000 (09:02 -0500)]
Btrfs: Extra NULL block group checks in find_free_extent
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Wed, 12 Dec 2007 19:38:19 +0000 (14:38 -0500)]
Btrfs: Add back pointers from the inode to the directory that references it
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 11 Dec 2007 17:42:00 +0000 (12:42 -0500)]
Btrfs: Add lowest key information to back refs for extent tree blocks as well.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 11 Dec 2007 14:25:06 +0000 (09:25 -0500)]
Btrfs: Add back pointers from extents to the btree or file referencing them
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 11 Dec 2007 14:25:06 +0000 (09:25 -0500)]
Btrfs: Implement generation numbers in block pointers
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Christian Hesse [Tue, 11 Dec 2007 14:25:06 +0000 (09:25 -0500)]
Btrfs: section mismatch warnings
--Boundary-00=_CcOWHFYK4T+JwSj
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charset="iso-8859-1"
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Hello everybody,
compiling btrfs into the kernel results in section mismatch warnings. __exit
functions are called where they are not allowed to. The attached patch fixes
this for me. Not sure if it is correct though.
Signed-off-by: Christian Hesse <mail@earthworm.de>
--
Regards,
Chris
--Boundary-00=_CcOWHFYK4T+JwSj
Content-Type: text/x-diff; charset="iso-8859-1";
name="btrfs-section_mismatches.patch"
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Content-Disposition: attachment;
filename="btrfs-section_mismatches.patch"
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Yan [Tue, 4 Dec 2007 18:20:20 +0000 (13:20 -0500)]
Btrfs: Fix buffer get/release issue in create_snapshot
btrfs_cow_block expects a reference to be held on the buffer being cow'd.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 4 Dec 2007 18:18:24 +0000 (13:18 -0500)]
Btrfs: Fix extent allocation for btree blocks as the disk fills
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 30 Nov 2007 16:30:34 +0000 (11:30 -0500)]
Btrfs: Add simple stripe size parameter
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 30 Nov 2007 15:09:33 +0000 (10:09 -0500)]
btrfs_drop_extents: make sure the item is getting smaller before truncate
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 27 Nov 2007 16:16:35 +0000 (11:16 -0500)]
Btrfs: Add efficient dirty accounting to the extent_map tree
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 27 Nov 2007 15:52:01 +0000 (07:52 -0800)]
Btrfs: Fine tune the btree writeback exclusion some more
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 27 Nov 2007 00:47:05 +0000 (19:47 -0500)]
Btrfs: Only limit btree writeback for pdflush
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 27 Nov 2007 00:34:41 +0000 (16:34 -0800)]
Btrfs: Limit btree writeback to prevent seeks
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 27 Nov 2007 00:15:16 +0000 (16:15 -0800)]
Btrfs: Handle writeback under high memory pressure better
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Yan [Mon, 26 Nov 2007 15:58:13 +0000 (10:58 -0500)]
Btrfs: Properly update right_nritems in push_leaf_left
The codes that fixup the right leaf and the codes that dirty the
extnet buffer use the variable 'right_nritems' , both of them expect
'right_nritems' is the number of items in right leaf after the push.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Mon, 26 Nov 2007 15:55:49 +0000 (10:55 -0500)]
Btrfs: Add check for null block group to find_search_start
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 20 Nov 2007 18:44:45 +0000 (13:44 -0500)]
Btrfs: Make sure page mapping dirty tag is properly cleared
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 20 Nov 2007 15:47:25 +0000 (10:47 -0500)]
Btrfs: Avoid fragmentation from parallel delalloc filling
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Wyatt Banks [Mon, 19 Nov 2007 15:22:33 +0000 (10:22 -0500)]
Btrfs: Return value checking in module init
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Josef Bacik [Mon, 19 Nov 2007 15:18:19 +0000 (10:18 -0500)]
Btrfs: xattr fixes
This fixes two typos that Yan pointed out to me. Thanks much,
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Josef Bacik [Mon, 19 Nov 2007 15:18:17 +0000 (10:18 -0500)]
Btrfs: Make ACLs return EOPNOTSUPP for now
There was a slight problem with ACL's returning EINVAL when you tried to set an
ACL. This isn't correct, we should be returning EOPNOTSUPP, so I did a very
ugly thing and just commented everybody out and made them return EOPNOTSUPP.
This is only temporary, I'm going back to implement ACL's, but Chris wants to
push out a release so this will suffice for now.
Also Yan suggested setting reada to -1 in the delete case to enable backwards
readahead, and in the listxattr case I moved path->reada = 2; to after the if
(!path) check so we can avoid a possible null dereference. Thank you,
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Yan [Fri, 16 Nov 2007 19:57:09 +0000 (14:57 -0500)]
Btrfs: Off by one fixes for extent-tree.c
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Yan [Fri, 16 Nov 2007 19:57:09 +0000 (14:57 -0500)]
Btrfs: Add full_scan parameter to find_search_start
This patch adds a new parameter 'full_scan' to 'find_search_start',
thereby 'find_search_start' can know whether 'find_free_extent' is in
full scan phrase. I feel that 'find_search_start' should skip calling
'btrfs_find_block_group' when 'find_free_extent' is in full scan
phrase. In my test on a 2GB volume, Oops occurs when space usage is
about 76%. After apply the patch, Oops occurs when space usage is
near 100%.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Yan [Fri, 16 Nov 2007 19:57:08 +0000 (14:57 -0500)]
Btrfs: Add block group pinned accounting back
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>
Josef Bacik [Fri, 16 Nov 2007 16:45:54 +0000 (11:45 -0500)]
xattr support for btrfs
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Sun, 11 Nov 2007 13:22:00 +0000 (08:22 -0500)]
Btrfs: Fix extent bit range testing
It could return the bit as set when there was actually a hole at the
very end of the range.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 8 Nov 2007 15:59:22 +0000 (10:59 -0500)]
Btrfs: Add readpages support
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 8 Nov 2007 15:59:05 +0000 (10:59 -0500)]
Btrfs: Avoid extent_buffer lru corruption
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 8 Nov 2007 02:08:16 +0000 (21:08 -0500)]
Btrfs: Allow large data extents in a single file to span into metadata block groups
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 8 Nov 2007 02:08:16 +0000 (21:08 -0500)]
Btrfs: Fix failure cleanups when allocating extent buffers fail
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 8 Nov 2007 02:08:01 +0000 (21:08 -0500)]
Btrfs: Use writepages for the metadata too
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Yan [Wed, 7 Nov 2007 18:31:09 +0000 (13:31 -0500)]
Properly delete csum item in btrfs_truncate_in_trans.
When 'item_end' is equal to 'inode->i_size', 'found_type' is updated
and current item is skipped. This behavior is correct for extent item,
but incorrect for csum item. For example, there is a csum item with
'offset == 0'. When deleting the inode, 'inode->i_size' is set to 0,
so the csum item isn't deleted.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Wed, 7 Nov 2007 18:31:03 +0000 (13:31 -0500)]
Btrfs: Change push_leaf_{leaf,right} to empty the src leave during item deletion
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 6 Nov 2007 20:09:29 +0000 (15:09 -0500)]
Fix recursive KM_USER1 usage in btrfs_realloc_node
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 6 Nov 2007 15:26:29 +0000 (10:26 -0500)]
Btrfs: Optimize allocations as we need to mix data and metadata into one group
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Yan [Tue, 6 Nov 2007 15:26:28 +0000 (10:26 -0500)]
Fix EXTENT_MAP_INLINE off by one in btrfs_drop_extents
Don't set hint_byte to EXTENT_MAP_INLINE when 'end == extent_end' or
'start == key.offset' . The inline extent will be truncated in these
cases.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Yan [Tue, 6 Nov 2007 15:26:26 +0000 (10:26 -0500)]
Btrfs: Fix u32 overflow in dirty_and_release_pages.
When calculating the size of inline extent, inode->i_size should also
be take into consideration, otherwise sys_write may drop some data
silently. You can test this bug by:
#dd if=/dev/zero bs=4k count=1 of=test_file
#dd if=/dev/zero bs=2k count=1 of=test_file conv=notrunc
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 6 Nov 2007 15:26:24 +0000 (10:26 -0500)]
Btrfs: Make defrag check nodes against the progress key to prevent repeating work
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Yan [Tue, 6 Nov 2007 15:25:25 +0000 (10:25 -0500)]
Btrfs: Properly update free space cache in __free_extent
When pin_down_bytes decides not to pin a block because it was from the
current transaction, make sure the in memory cache of free extents is updated
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 1 Nov 2007 23:45:34 +0000 (19:45 -0400)]
Btrfs: Add writepages support
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Yan [Thu, 1 Nov 2007 15:28:42 +0000 (11:28 -0400)]
Btrfs: small fixes for find_lock_delalloc_range.
There is a 'finish_wait', but no 'prepare_to_wait' . So I think that
the 'prepare_to_wait' is missing. The second change is according to
the name of variable.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Yan [Thu, 1 Nov 2007 15:28:41 +0000 (11:28 -0400)]
Btrfs: Fix typo and memory leak in extent-tree.c
This patch fixes a typo in update_block_group and memory leak in
btrfs_free_block_groups.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 1 Nov 2007 15:28:41 +0000 (11:28 -0400)]
Btrfs: Fix a number of inline extent problems that Yan Zheng reported.
The fixes do a number of things:
1) Most btrfs_drop_extent callers will try to leave the inline extents in
place. It can truncate bytes off the beginning of the inline extent if
required.
2) writepage can now update the inline extent, allowing mmap writes to
go directly into the inline extent.
3) btrfs_truncate_in_transaction truncates inline extents
4) extent_map.c fixed to not merge inline extent mappings and hole
mappings together
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 30 Oct 2007 20:56:53 +0000 (16:56 -0400)]
Btrfs: Fix PAGE_CACHE_SHIFT shifts on 32 bit machines
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Mon, 29 Oct 2007 18:36:41 +0000 (14:36 -0400)]
Add O_SYNC support to btrfs_file_write
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Yan [Mon, 29 Oct 2007 16:01:05 +0000 (12:01 -0400)]
Minor fix for btrfs_csum_file_block.
Execution should goto label 'insert' when 'btrfs_next_leaf' return a
non-zero value, otherwise the parameter 'slot' for
'btrfs_item_key_to_cpu' may be out of bounds. The original codes jump
to label 'insert' only when 'btrfs_next_leaf' return a negative
value.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Yan [Mon, 29 Oct 2007 15:41:07 +0000 (11:41 -0400)]
Fix inline extent handling in btrfs_get_extent
1. Reorder kmap and the test for 'page != NULL'
2. Zero-fill rest area of a block when inline extent isn't big enough.
3. Do not insert extent_map into the map tree when page == NULL.
(If insert the extent_map into the map tree, subsequent read requests
will find it in the map tree directly and the corresponding inline
extent data aren't copied into page by the the get_extent function.
extent_read_full_page can't handle that case)
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Yan [Mon, 29 Oct 2007 15:41:05 +0000 (11:41 -0400)]
Btrfs: Fix extent_map leak in extent_bmap
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Mon, 29 Oct 2007 14:55:05 +0000 (10:55 -0400)]
Btrfs: Compile fixes for 2.6.24-rc1
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Yan [Thu, 25 Oct 2007 19:49:25 +0000 (15:49 -0400)]
Fix ENOTEMPTY check in btrfs_rmdir
The ENOTEMPTY check in btrfs_rmdir isn't reliable. It's possible that
the backward search finds . or .. at first, then some other directory
entry. In that case, btrfs_rmdir delete . or .. improperly. The
patch also fixes a fs_mutex unlock issue in btrfs_rmdir.
--
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Yan [Thu, 25 Oct 2007 19:48:28 +0000 (15:48 -0400)]
btrfs_inode_by_name return random value.
When inode is found, the return value is from the uninitialized
variable 'ret'.
--
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 25 Oct 2007 19:43:18 +0000 (15:43 -0400)]
Btrfs: Tune the automatic defrag code
1) Forced defrag wasn't working properly (btrfsctl -d) because some
cache only checks were incorrect.
2) Defrag only the leaves unless in forced defrag mode.
3) Don't use complex logic to figure out if a leaf is needs defrag
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Yan [Thu, 25 Oct 2007 19:42:57 +0000 (15:42 -0400)]
Btrfs: Fix for insert_inline_extent to handle offset != 0
This modifies inline extent size calculation, so that
insert_inline_extent can handle the case that parameter 'offset' is
not zero; it also a few codes to zero uninitialized area in inline
extent.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 25 Oct 2007 19:42:57 +0000 (15:42 -0400)]
Btrfs: Fix split_leaf to detect when it is extending an item
When making room for a new item, it is ok to create an empty leaf, but
when making room to extend an item, split_leaf needs to make sure it
keeps the item we're extending in the path and make sure we don't end up
with an empty leaf.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Yan [Thu, 25 Oct 2007 19:42:57 +0000 (15:42 -0400)]
Btrfs: Off by one fixes in extent_map.c
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 25 Oct 2007 19:42:56 +0000 (15:42 -0400)]
Btrfs: Optimize csum insertion to create larger items when possible
This reduces the number of calls to btrfs_extend_item and greatly lowers
the cpu usage while writing large files.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 19 Oct 2007 18:01:21 +0000 (14:01 -0400)]
Btrfs: Fix split_leaf to avoid incorrect double splits
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 19 Oct 2007 14:39:41 +0000 (10:39 -0400)]
Btrfs: Avoid recursive KM_USER1 mappings in copy_extent_buffer
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 19 Oct 2007 13:23:27 +0000 (09:23 -0400)]
Btrfs: CPU usage optimizations in push and the extent_map code
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 19 Oct 2007 13:23:09 +0000 (09:23 -0400)]
Btrfs: Fix read/write_extent_buffer to use KM_USER1 instead of KM_USER0
This avoids recursive use of KM_USER0 during btrfs_file_write
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Jens Axboe [Fri, 19 Oct 2007 13:23:08 +0000 (09:23 -0400)]
Btrfs: sysfs compile fixup
Just use kobject_set_name(), that works in all kernels (I think...).
Kernels newer than 2.6.23 currently fail with:
/home/axboe/git/btrfs/btrfs-unstable/sysfs.c:188: error: unknown field
'name' specified in initializer
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Jens Axboe [Fri, 19 Oct 2007 13:23:07 +0000 (09:23 -0400)]
Btrfs: KM_IRQ0 usage in end_io handling
endio handling is typically called with interrupts disabled, but can
also be called with it enabled. So save interrupts before using KM_IRQ0
to be completely safe.
Signed-off-by: Chris Mason <chris.mason@oracle.com>