]> git.karo-electronics.de Git - linux-beck.git/log
linux-beck.git
16 years agoBtrfs: Hash in the offset and owner for file extent backref keys
Chris Mason [Fri, 1 Feb 2008 19:51:59 +0000 (14:51 -0500)]
Btrfs: Hash in the offset and owner for file extent backref keys

This makes searches for backrefs and backref insertion much more efficient
when there are many backrefs for a single extent

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Insert extent record and the first backref in a single balance
Chris Mason [Fri, 1 Feb 2008 19:51:59 +0000 (14:51 -0500)]
Btrfs: Insert extent record and the first backref in a single balance

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Add a lookup cache to the extent state tree
Chris Mason [Fri, 1 Feb 2008 19:51:59 +0000 (14:51 -0500)]
Btrfs: Add a lookup cache to the extent state tree

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Add data block hints to SSD mode too
Chris Mason [Thu, 31 Jan 2008 21:45:07 +0000 (16:45 -0500)]
Btrfs: Add data block hints to SSD mode too

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Enable delalloc accounting
Chris Mason [Thu, 31 Jan 2008 16:05:37 +0000 (11:05 -0500)]
Btrfs: Enable delalloc accounting

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agobtrfs_drop_extent fixe for inline items > 8K
Yan [Wed, 30 Jan 2008 19:39:54 +0000 (14:39 -0500)]
btrfs_drop_extent fixe for inline items > 8K

When truncating a inline extent, btrfs_drop_extents doesn't properly
handle the case "key.offset > inline_limit". This bug can only happen
when max line size is larger than 8K.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoFix hole start calculation in btrfs_settar
Chris Mason [Wed, 30 Jan 2008 19:33:02 +0000 (14:33 -0500)]
Fix hole start calculation in btrfs_settar

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoProperly align the hole size in btrfs_setattr
Chris Mason [Wed, 30 Jan 2008 16:54:05 +0000 (11:54 -0500)]
Properly align the hole size in btrfs_setattr

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Align extent length to sectorsize in
Yan [Wed, 30 Jan 2008 16:54:04 +0000 (11:54 -0500)]
Btrfs: Align extent length to sectorsize in

---

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Copy correct tree when inserting into slot 0
Chris Mason [Wed, 30 Jan 2008 16:43:54 +0000 (11:43 -0500)]
Btrfs: Copy correct tree when inserting into slot 0

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Leave on the tree defragger in mount -o ssd, it still helps there
Chris Mason [Tue, 29 Jan 2008 21:06:37 +0000 (16:06 -0500)]
Btrfs: Leave on the tree defragger in mount -o ssd, it still helps there

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: mount -o max_inline=size to control the maximum inline extent size
Chris Mason [Tue, 29 Jan 2008 21:03:38 +0000 (16:03 -0500)]
Btrfs: mount -o max_inline=size to control the maximum inline extent size

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Do delalloc accounting via hooks in the extent_state code
Chris Mason [Tue, 29 Jan 2008 20:55:23 +0000 (15:55 -0500)]
Btrfs: Do delalloc accounting via hooks in the extent_state code

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Add inode item and backref in one insert, reducing cpu usage
Chris Mason [Tue, 29 Jan 2008 20:15:18 +0000 (15:15 -0500)]
Btrfs: Add inode item and backref in one insert, reducing cpu usage

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: During deletes and truncate, remove many items at once from the tree
Chris Mason [Tue, 29 Jan 2008 20:11:36 +0000 (15:11 -0500)]
Btrfs: During deletes and truncate, remove many items at once from the tree

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: extent_io and extent_state optimizations
Chris Mason [Tue, 29 Jan 2008 14:59:12 +0000 (09:59 -0500)]
Btrfs: extent_io and extent_state optimizations

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>
16 years agoBtrfs: Add some extra debugging around file data checksum failures
Chris Mason [Tue, 29 Jan 2008 14:10:27 +0000 (09:10 -0500)]
Btrfs: Add some extra debugging around file data checksum failures

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Force f_pos to the max when a readdir hits the end of the directory.
Chris Mason [Tue, 29 Jan 2008 14:10:26 +0000 (09:10 -0500)]
Btrfs: Force f_pos to the max when a readdir hits the end of the directory.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Tune readahead during defrag to avoid reading too much at once
Chris Mason [Thu, 24 Jan 2008 21:13:14 +0000 (16:13 -0500)]
Btrfs: Tune readahead during defrag to avoid reading too much at once

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Split the extent_map code into two parts
Chris Mason [Thu, 24 Jan 2008 21:13:08 +0000 (16:13 -0500)]
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>
16 years agoBtrfs: Fix hole insertion corner cases
Chris Mason [Tue, 22 Jan 2008 21:47:59 +0000 (16:47 -0500)]
Btrfs: Fix hole insertion corner cases

There were a few places that could cause duplicate extent insertion,
this adjusts the code that creates holes to avoid it.

lookup_extent_map is changed to correctly return all of the extents in a
range, even when there are none matching at the start of the range.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Include sched.h in the acl code for current (fixes compile on 2.6.23)
Chris Mason [Tue, 22 Jan 2008 17:46:56 +0000 (12:46 -0500)]
Btrfs: Include sched.h in the acl code for current (fixes compile on 2.6.23)

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Add basic lockfs calls
Yan [Tue, 22 Jan 2008 17:46:56 +0000 (12:46 -0500)]
Btrfs: Add basic lockfs calls

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Fix for test_range_bit
Yan [Tue, 22 Jan 2008 17:46:56 +0000 (12:46 -0500)]
Btrfs: Fix for test_range_bit

test_range_bit doesn't properly handle the case: there's a hole at the
end of the range and there's no other extent_state after the range.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoFix for btrfs_find_free_objectid
Yan [Tue, 22 Jan 2008 17:46:56 +0000 (12:46 -0500)]
Fix for btrfs_find_free_objectid

btrfs_find_free_objectid may return a used objectid due to arithmetic
underflow. This bug may happen when parameter 'root' is tree root,  so
it may cause serious problems when creating snapshot or sub-volume.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Add mount -o ssd, which includes optimizations for seek free storage
Chris Mason [Fri, 18 Jan 2008 15:54:22 +0000 (10:54 -0500)]
Btrfs: Add mount -o ssd, which includes optimizations for seek free storage

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Use blk_congestion_wait on older kernels
Chris Mason [Thu, 17 Jan 2008 17:01:41 +0000 (12:01 -0500)]
Btrfs: Use blk_congestion_wait on older kernels

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Fix compile on 2.6.22 kernel
Yan [Thu, 17 Jan 2008 16:59:51 +0000 (11:59 -0500)]
Btrfs: Fix compile on 2.6.22 kernel

This patch fixes compile error on kernel-2.6.22

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Fix compile on kernel without ACLs enabled
Yan [Thu, 17 Jan 2008 16:59:48 +0000 (11:59 -0500)]
Btrfs: Fix compile on kernel without ACLs enabled

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Fix data=ordered vs wait_on_inode deadlock on older kernels
Chris Mason [Wed, 16 Jan 2008 21:09:22 +0000 (16:09 -0500)]
Btrfs: Fix data=ordered vs wait_on_inode deadlock on older kernels

Using ilookup5 during data=ordered writeback could deadlock on I_LOCK.  This
saves a pointer to the inode instead.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Run igrab on data=ordered inodes to prevent deadlocks during writeout
Chris Mason [Wed, 16 Jan 2008 16:44:43 +0000 (11:44 -0500)]
Btrfs: Run igrab on data=ordered inodes to prevent deadlocks during writeout

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Disable delalloc accounting for now
Chris Mason [Tue, 15 Jan 2008 13:44:06 +0000 (08:44 -0500)]
Btrfs: Disable delalloc accounting for now

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoRework btrfs_drop_inode to avoid scheduling
Chris Mason [Tue, 15 Jan 2008 13:40:48 +0000 (08:40 -0500)]
Rework btrfs_drop_inode to avoid scheduling

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Add drop inode func to avoid data=ordered deadlock
Chris Mason [Mon, 14 Jan 2008 21:24:38 +0000 (16:24 -0500)]
Btrfs: Add drop inode func to avoid data=ordered deadlock

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Delete any remaining extent_maps before freeing the inode
Chris Mason [Mon, 14 Jan 2008 20:10:26 +0000 (15:10 -0500)]
Btrfs: Delete any remaining extent_maps before freeing the inode

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Only delete roots from sysfs when they were added to sysfs
Chris Mason [Mon, 14 Jan 2008 19:41:16 +0000 (14:41 -0500)]
Btrfs: Only delete roots from sysfs when they were added to sysfs

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Change magic string to reflect new format
Chris Mason [Mon, 14 Jan 2008 19:33:35 +0000 (14:33 -0500)]
Btrfs: Change magic string to reflect new format

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Add readonly inode flag
Yan [Mon, 14 Jan 2008 18:26:08 +0000 (13:26 -0500)]
Btrfs: Add readonly inode flag

This patch adds readonly inode flag support.  A file with this flag
can't be modified, but can be deleted.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Implement ACLs setting and getting
Yan [Mon, 14 Jan 2008 18:26:08 +0000 (13:26 -0500)]
Btrfs: Implement ACLs setting and getting

ACLs are stored but not used for permission checks (yet)

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Remove verbose WARN_ON
Chris Mason [Mon, 14 Jan 2008 18:22:53 +0000 (13:22 -0500)]
Btrfs: Remove verbose WARN_ON

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Fix extent_buffer usage when nodesize != leafsize
Chris Mason [Wed, 9 Jan 2008 20:55:33 +0000 (15:55 -0500)]
Btrfs: Fix extent_buffer usage when nodesize != leafsize

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Add flush barriers on commit
Chris Mason [Wed, 9 Jan 2008 14:23:21 +0000 (09:23 -0500)]
Btrfs: Add flush barriers on commit

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Remove extent_map debugging message
Chris Mason [Wed, 9 Jan 2008 11:28:28 +0000 (06:28 -0500)]
Btrfs: Remove extent_map debugging message

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Add inode flags support
Yan [Tue, 8 Jan 2008 20:54:37 +0000 (15:54 -0500)]
Btrfs: Add inode flags support

This patch adds NODATASUM & NODATACOW inode flags support.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: online shrinking fixes
Chris Mason [Tue, 8 Jan 2008 20:46:31 +0000 (15:46 -0500)]
Btrfs: online shrinking fixes

While shrinking the FS, the allocation functions need to make sure
they don't try to allocate bytes past the end of the FS.

nodatacow needed an extra check to force cows when the existing extents are
past the end of the FS.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Disable btree reada during extent backref lookups.
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>
16 years agoBtrfs: Add some simple throttling to wait for data=ordered and snapshot deletion
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>
16 years agoBtrfs: Move snapshot creation to commit time
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>
16 years agoBtrfs: Add data=ordered support
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>
16 years agoBtrfs: Change tree block csum tagging to avoid false error messages
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>
16 years agoBtrfs: resizer: don't hold the fs_mutex for long periods of time
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>
16 years agoProperly call btrfs_search_slot while shrinking
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>
16 years agoBtrfs: Lower the max inline size to 8k
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>
16 years agoBtrfs: Change st_blocksize to 4k
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>
16 years agoBtrfs: Properly handle overlapping extent in shrink_extent_tree
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>
16 years agoBtrfs: Add a helper that finds previous extent item
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>
16 years agoBtrfs: Fix lock ordering of the snapshot semaphore against the page lock
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>
16 years agocount_snapshots: Properly update the leaf pointer after btrfs_next_leaf
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>
16 years agoBtrfs: Force inlining off in a few places to save stack usage
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>
16 years agoBtrfs: 32 bit compile fixes for the resizer and enospc checks
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>
16 years agoBtrfs: Reduce stack usage in the resizer, fix 32 bit compiles
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>
16 years agoBtrfs: Explicitly send a root objectid to count_snapshots_in_path
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>
16 years agoBtrfs: Add readahead to the online shrinker, and a mount -o alloc_start= for testing
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>
16 years agoBtrfs: Fix NULL block groups on reading the inode
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>
16 years agoBtrfs: Support for online FS resize (grow and shrink)
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>
16 years agoBtrfs: Fix an off by one in the extent_map prepare write code
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>
16 years agoBtrfs: Implement basic support for -ENOSPC
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>
16 years agoBtrfs: Less aggressive readahead on deletes
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>
16 years agoBtrfs: Fix nodatacow extent lookup
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>
16 years agoBtrfs: Fix delayed allocation to avoid missing delalloc extents
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>
16 years agokmalloc a few large stack objects in the btrfs_ioctl path
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>
16 years agoBtrfs: Back port to 2.6.18-el kernels
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>
16 years agoBtrfs: Add mount option to enforce a max extent size
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>
16 years agoBtrfs: Fix extent_map and extent_state leaks by flushing lrus on FS unmount
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>
16 years agoBtrfs: Add mount option to turn off data cow
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>
16 years agoBtrfs: Add mount -o nodatasum to turn of file data checksumming
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>
16 years agoFixes for loopback files in btrfs
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>
16 years agoOff by one fix for btrfs_drop_extents
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>
16 years agoBtrfs: Reorder extent back refs to differentiate btree blocks from file data
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>
16 years agoFix btrfs_inc_ref to add backref hints
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>
16 years agoBtrfs: Fix typo in .. check (thanks Yan)
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>
16 years agoBtrfs: Add backrefs for symbolic link inodes
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>
16 years agoBtrfs: Extra NULL block group checks in find_free_extent
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>
16 years agoBtrfs: Add back pointers from the inode to the directory that references it
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>
16 years agoBtrfs: Add lowest key information to back refs for extent tree blocks as well.
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>
16 years agoBtrfs: Add back pointers from extents to the btree or file referencing them
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>
16 years agoBtrfs: Implement generation numbers in block pointers
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>
16 years agoBtrfs: section mismatch warnings
Christian Hesse [Tue, 11 Dec 2007 14:25:06 +0000 (09:25 -0500)]
Btrfs: section mismatch warnings

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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

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Signed-off-by: Chris Mason <chris.mason@oracle.com>
16 years agoBtrfs: Fix buffer get/release issue in create_snapshot
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>
16 years agoBtrfs: Fix extent allocation for btree blocks as the disk fills
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>
16 years agoBtrfs: Add simple stripe size parameter
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>
16 years agobtrfs_drop_extents: make sure the item is getting smaller before truncate
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>
16 years agoBtrfs: Add efficient dirty accounting to the extent_map tree
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>
16 years agoBtrfs: Fine tune the btree writeback exclusion some more
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>
16 years agoBtrfs: Only limit btree writeback for pdflush
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>
16 years agoBtrfs: Limit btree writeback to prevent seeks
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>
16 years agoBtrfs: Handle writeback under high memory pressure better
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>
16 years agoBtrfs: Properly update right_nritems in push_leaf_left
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>
16 years agoBtrfs: Add check for null block group to find_search_start
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>
16 years agoBtrfs: Make sure page mapping dirty tag is properly cleared
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>