Chris Mason [Fri, 2 May 2008 18:49:33 +0000 (14:49 -0400)]
Btrfs: Fix do_sync_file_range ifdefs (2.6.22)
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 2 May 2008 18:43:15 +0000 (14:43 -0400)]
Btrfs: Compile warning fixup in volume.c
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Sage Weil [Fri, 2 May 2008 18:43:14 +0000 (14:43 -0400)]
Btrfs: Clone file data ioctl
Add a new ioctl to clone file data
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Wed, 30 Apr 2008 17:59:35 +0000 (13:59 -0400)]
Btrfs: Fixes for 2.6.18 enterprise kernels
2.6.18 seems to get caught in an infinite loop when
cancel_rearming_delayed_workqueue is called more than once, so this switches
to cancel_delayed_work, which is arguably more correct.
Also, balance_dirty_pages can run into problems with 2.6.18 based kernels
because it doesn't have the per-bdi dirty limits. This avoids calling
balance_dirty_pages on the btree inode unless there is actually something
to balance, which is a good optimization in general.
Finally there's a compile fix for ordered-data.h
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 29 Apr 2008 18:12:09 +0000 (14:12 -0400)]
Btrfs: Tune stripe selection for raid1 and raid10
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 29 Apr 2008 13:38:00 +0000 (09:38 -0400)]
Btrfs: Deal with failed writes in mirrored configurations
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Mon, 28 Apr 2008 20:40:52 +0000 (16:40 -0400)]
Btrfs: Drop some verbose printks
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Mon, 28 Apr 2008 19:29:52 +0000 (15:29 -0400)]
Btrfs: Add balance ioctl to restripe the chunks
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Mon, 28 Apr 2008 19:29:42 +0000 (15:29 -0400)]
Btrfs: Add new ioctl to add devices
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Mon, 28 Apr 2008 13:02:36 +0000 (09:02 -0400)]
Btrfs: Do more optimal file RA during shrinking and defrag
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Sat, 26 Apr 2008 15:03:32 +0000 (11:03 -0400)]
Btrfs: Avoid recursive chunk allocations
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 25 Apr 2008 20:53:30 +0000 (16:53 -0400)]
Btrfs: Make the resizer work based on shrinking and growing devices
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 25 Apr 2008 13:10:45 +0000 (09:10 -0400)]
Btrfs: write_cache_pages came in 2.6.22
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 25 Apr 2008 13:04:37 +0000 (09:04 -0400)]
Btrfs: Add failure handling for read_sys_array
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 25 Apr 2008 13:00:55 +0000 (09:00 -0400)]
Btrfs: write_extent_pages came in 2.6.23
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 25 Apr 2008 12:51:48 +0000 (08:51 -0400)]
Btrfs: Throttle file_write when data=ordered is flushing the inode
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 24 Apr 2008 18:42:46 +0000 (14:42 -0400)]
Btrfs: Fix balance_level to free the middle block if there is room in the left one
balance level starts by trying to empty the middle block, and then
pushes from the right to the middle. This might empty the right block
and leave a small number of pointers in the middle.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 24 Apr 2008 14:54:32 +0000 (10:54 -0400)]
Btrfs: Don't empty the middle buffer in push_nodes_for_insert
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 24 Apr 2008 13:34:34 +0000 (09:34 -0400)]
Btrfs: Fix split_node to require more empty slots in the node as well
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 24 Apr 2008 13:22:51 +0000 (09:22 -0400)]
Btrfs: Make sure nodes have enough room for a double split
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 22 Apr 2008 17:26:47 +0000 (13:26 -0400)]
Btrfs: Fix the unplug_io_fn to grab a consistent copy of page->mapping
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 22 Apr 2008 17:26:46 +0000 (13:26 -0400)]
Fix btrfs_get_extent and get_block corner cases, and disable O_DIRECT reads
The generic O_DIRECT code assumes all the bios have the same bdev,
which isn't true for multi-device btrfs.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 22 Apr 2008 13:24:20 +0000 (09:24 -0400)]
Btrfs: Set nodatasum on the inode when written by a nodatasum mount
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 22 Apr 2008 13:22:11 +0000 (09:22 -0400)]
Deal with page == NULL in the btrfs_unplug_io_fn
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 22 Apr 2008 13:22:07 +0000 (09:22 -0400)]
Btrfs: Add a special device list for chunk allocations
This allows other code that needs to walk every device in the FS to do so
without locking against allocations.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Mon, 21 Apr 2008 16:01:38 +0000 (12:01 -0400)]
Btrfs: Simplify device selection for mirrored reads
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Mon, 21 Apr 2008 14:03:05 +0000 (10:03 -0400)]
Btrfs: Make an unplug function that doesn't unplug every spindle
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Mon, 21 Apr 2008 12:52:50 +0000 (08:52 -0400)]
Btrfs: Remove debugging statements from the invalidatepage calls
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Mon, 21 Apr 2008 12:28:10 +0000 (08:28 -0400)]
Btrfs: Add 1MB to the min_free in alloc_chunk
This properly reflects the first 1MB we skip at the start of the device
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 18 Apr 2008 20:13:31 +0000 (16:13 -0400)]
Btrfs: Scale the bdi ra_pages by the number of devices in the FS
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 18 Apr 2008 20:11:30 +0000 (16:11 -0400)]
Force page->private removal in btrfs_invalidatepage
btrfs_invalidatepage is not allowed to leave pages around on the lru.
Any such pages will trigger an oops later on because the VM will see
page->private and assume it is a buffer head.
This also forces extra flushes of the async work queues before
dropping all the pages on the btree inode during unmount. Left over
items on the work queues are one possible cause of busy state ranges
during truncate_inode_pages.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 18 Apr 2008 18:17:20 +0000 (14:17 -0400)]
Btrfs: Set the btree inode i_size to OFFSET_MAX
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 18 Apr 2008 15:55:51 +0000 (11:55 -0400)]
Btrfs: Fix chunk allocation when some devices don't have enough room for stripes
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 18 Apr 2008 14:29:51 +0000 (10:29 -0400)]
Btrfs: Calculate appropriate chunk sizes for both small and large filesystems
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 18 Apr 2008 14:29:50 +0000 (10:29 -0400)]
Btrfs: Don't drop extent_map cache during releasepage on the btree inode
The btree inode should only have a single extent_map in the cache,
it doesn't make sense to ever drop it.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 18 Apr 2008 14:29:49 +0000 (10:29 -0400)]
Btrfs: Add support for labels in the super block
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 18 Apr 2008 14:29:38 +0000 (10:29 -0400)]
Btrfs: Check device uuids along with devids
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 17 Apr 2008 18:08:30 +0000 (14:08 -0400)]
Btrfs: Remove bogus max_sector warnings from the extent_io code
It was testing the bio before doing logical->physical mapping, so the
test was always wrong.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 17 Apr 2008 15:58:30 +0000 (11:58 -0400)]
Btrfs: Avoid 64 bit div for RAID10
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 17 Apr 2008 15:29:12 +0000 (11:29 -0400)]
Btrfs: Use the extent map cache to find the logical disk block during data retries
The data read retry code needs to find the logical disk block before it
can resubmit new bios. But, finding this block isn't allowed to take
the fs_mutex because that will deadlock with a number of different callers.
This changes the retry code to use the extent map cache instead, but
that requires the extent map cache to have the extent we're looking for.
This is a problem because btrfs_drop_extent_cache just drops the entire
extent instead of the little tiny part it is invalidating.
The bulk of the code in this patch changes btrfs_drop_extent_cache to
invalidate only a portion of the extent cache, and changes btrfs_get_extent
to deal with the results.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Wed, 16 Apr 2008 17:06:16 +0000 (13:06 -0400)]
Btrfs: Only do async bio submission for pdflush
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Wed, 16 Apr 2008 16:59:22 +0000 (12:59 -0400)]
Btrfs: Don't wait on tree block writeback before freeing them anymore
This isn't required anymore because we don't reallocate blocks that
have already been written in this transaction.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Wed, 16 Apr 2008 15:15:20 +0000 (11:15 -0400)]
Btrfs: Write bio checksumming outside the FS mutex
This significantly improves streaming write performance by allowing
concurrency in the data checksumming.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Wed, 16 Apr 2008 15:14:51 +0000 (11:14 -0400)]
Btrfs: Create a work queue for bio writes
This allows checksumming to happen in parallel among many cpus, and
keeps us from bogging down pdflush with the checksumming code.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Wed, 16 Apr 2008 14:49:51 +0000 (10:49 -0400)]
Btrfs: Add RAID10 support
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 15 Apr 2008 19:41:47 +0000 (15:41 -0400)]
Btrfs: Add chunk uuids and update multi-device back references
Block headers now store the chunk tree uuid
Chunk items records the device uuid for each stripes
Device extent items record better back refs to the chunk tree
Block groups record better back refs to the chunk tree
The chunk tree format has also changed. The objectid of BTRFS_CHUNK_ITEM_KEY
used to be the logical offset of the chunk. Now it is a chunk tree id,
with the logical offset being stored in the offset field of the key.
This allows a single chunk tree to record multiple logical address spaces,
upping the number of bytes indexed by a chunk tree from 2^64 to
2^128.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Mon, 14 Apr 2008 13:48:18 +0000 (09:48 -0400)]
Btrfs: A few updates for 2.6.18 and versions older than 2.6.25
This includes fixing a missing spinlock init call that caused oops on mount
for most kernels other than 2.6.25.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Mon, 14 Apr 2008 13:46:10 +0000 (09:46 -0400)]
Add a min size parameter to btrfs_alloc_extent
On huge machines, delayed allocation may try to allocate massive extents.
This change allows btrfs_alloc_extent to return something smaller than
the caller asked for, and the data allocation routines will loop over
the allocations until it fills the whole delayed alloc.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Miguel [Fri, 11 Apr 2008 19:50:59 +0000 (15:50 -0400)]
Btrfs: bio_endio support for linux 2.6.23 and older.
bio_endio() changed prototype on linux 2.6.24, support older kernels
using the older prototype.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Miguel [Fri, 11 Apr 2008 19:46:48 +0000 (15:46 -0400)]
Btrfs: define write_cache_pages for linux kernel <= 2.6.20 instead
write_cache_pages doesn't exist in linux 2.6.20, change the #if
condition to match that.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Miguel [Fri, 11 Apr 2008 19:45:51 +0000 (15:45 -0400)]
Btrfs: Endianess bug fix for v0.13 with kernels
Fix for a endianess BUG when using btrfs v0.13 with kernels older than 2.6.23
Problem:
Has of v0.13, btrfs-progs is using crc32c.c equivalent to the one found on
linux-2.6.23/lib/libcrc32c.c Since crc32c_le() changed in linux-2.6.23, when
running btrfs v0.13 with older kernels we have a missmatch between the versions
of crc32c_le() from btrfs-progs and libcrc32c in the kernel. This missmatch
causes a bug when using btrfs on big endian machines.
Solution:
btrfs_crc32c() macro that when compiling for kernels older than 2.6.23, does
endianess conversion to parameters and return value of crc32c().
This endianess conversion nullifies the differences in implementation
of crc32c_le().
If kernel 2.6.23 or better, it calls crc32c().
Signed-off-by: Miguel Sousa Filipe <miguel.filipe@gmail.com>
---
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 11 Apr 2008 16:16:46 +0000 (12:16 -0400)]
Btrfs: Fixup a few u64<->pointer casts for 32 bit
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 11 Apr 2008 14:51:07 +0000 (10:51 -0400)]
Btrfs: Add extra checks to avoid removing extent_state from pages we can't free
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 10 Apr 2008 20:19:33 +0000 (16:19 -0400)]
Btrfs: Write out all super blocks on commit, and bring back proper barrier support
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 10 Apr 2008 14:23:21 +0000 (10:23 -0400)]
Btrfs: Add O_DIRECT read and write (writes == buffered + cache flush)
This adds basic O_DIRECT read and write support. In the write case, we
just do a normal buffered write followed by a cache flush. O_DIRECT +
O_SYNC are required to trigger metadata syncs.
In the read case, there is a basic btrfs_get_block call for use by
the generic O_DIRECT code. This does honor multi-volume mapping rules
but it skips all checksumming.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 10 Apr 2008 14:23:19 +0000 (10:23 -0400)]
Btrfs: Disable extra debugging checks on tree blocks
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Wed, 9 Apr 2008 20:28:12 +0000 (16:28 -0400)]
Btrfs: Handle checksumming errors while reading data blocks
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Wed, 9 Apr 2008 20:28:12 +0000 (16:28 -0400)]
Btrfs: Retry metadata reads in the face of checksum failures
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Wed, 9 Apr 2008 20:28:12 +0000 (16:28 -0400)]
Btrfs: Handle data block end_io through the async work queue
Before it was done by the bio end_io routine, the work queue code is able
to scale much better with faster IO subsystems.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Wed, 9 Apr 2008 20:28:12 +0000 (16:28 -0400)]
Btrfs: Do metadata checksums for reads via a workqueue
Before, metadata checksumming was done by the callers of read_tree_block,
which would set EXTENT_CSUM bits in the extent tree to show that a given
range of pages was already checksummed and didn't need to be verified
again.
But, those bits could go away via try_to_releasepage, and the end
result was bogus checksum failures on pages that never left the cache.
The new code validates checksums when the page is read. It is a little
tricky because metadata blocks can span pages and a single read may
end up going via multiple bios.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Wed, 9 Apr 2008 20:28:12 +0000 (16:28 -0400)]
Btrfs: Add additional debugging for metadata checksum failures
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Wed, 9 Apr 2008 20:28:12 +0000 (16:28 -0400)]
Change btrfs_map_block to return a structure with mappings for all stripes
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 4 Apr 2008 19:40:00 +0000 (15:40 -0400)]
Btrfs: Fix allocation profile init
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Fri, 4 Apr 2008 19:40:00 +0000 (15:40 -0400)]
Btrfs: Don't allow written blocks from this transaction to be reallocated
When a block is freed, it can be immediately reused if it is from
the current transaction. But, an extra check is required to make sure
the block had not been written yet. If it were reused after being written,
the transid in the block header might match the transid of the
next time the block was allocated.
The parent node records the transaction ID of the block it is pointing to,
and this is used as part of validating the block on reads. So, there
can only be one version of a block per transaction.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 3 Apr 2008 20:29:03 +0000 (16:29 -0400)]
Btrfs: Add support for duplicate blocks on a single spindle
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 3 Apr 2008 20:29:03 +0000 (16:29 -0400)]
Btrfs: Add support for mirroring across drives
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 3 Apr 2008 20:29:02 +0000 (16:29 -0400)]
Btrfs: Properly dirty buffers in the split corner cases
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 1 Apr 2008 17:48:14 +0000 (13:48 -0400)]
Btrfs: Verify checksums on tree blocks found without read_tree_block
Checksums were only verified by btrfs_read_tree_block, which meant the
functions to probe the page cache for blocks were not validating checksums.
Normally this is fine because the buffers will only be in cache if they
have already been validated.
But, there is a window while the buffer is being read from disk where
it could be up to date in the cache but not yet verified. This patch
makes sure all buffers go through checksum verification before they
are used.
This is safer, and it prevents modification of buffers before they go
through the csum code.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 1 Apr 2008 15:26:07 +0000 (11:26 -0400)]
Btrfs: Keep fs_mutex during reads done by snapshot deletion
There was an optimization to drop the fs_mutex when doing snapshot deletion
reads, but this can lead to false positives on checksumming errors. Keep
the lock for now.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Alex Chiang [Tue, 1 Apr 2008 15:21:40 +0000 (11:21 -0400)]
btrfs-progs: Stop stomping on 'name' input parameter
In btrfs_name_hash, Local variable 'buf' is declared as
__u32 buf[2];
but we then try to do this:
buf[0] = 0x67452301;
buf[1] = 0xefcdab89;
buf[2] = 0x98badcfe;
buf[3] = 0x10325476;
Oops. Fix buf to be the proper size.
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Peter [Tue, 1 Apr 2008 15:21:40 +0000 (11:21 -0400)]
Btrfs: Correct usage of IS_ERR() in extent_io.c
Signed-off-by: Peter Teoh <htmldeveloper@gmail.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Yan [Tue, 1 Apr 2008 15:21:34 +0000 (11:21 -0400)]
Fix btrfs_fill_super to return -EINVAL when no FS found
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 1 Apr 2008 15:21:32 +0000 (11:21 -0400)]
Reorder the flags field in struct btrfs_header and record a flag on writeout
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>
Chris Mason [Wed, 26 Mar 2008 20:24:23 +0000 (16:24 -0400)]
Btrfs: Add leak debugging for extent_buffer and extent_state
This also fixes one leak around the super block when failing to mount the
FS.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Wed, 26 Mar 2008 16:02:55 +0000 (12:02 -0400)]
Btrfs: Use a higher default ra pages
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Wed, 26 Mar 2008 14:28:07 +0000 (10:28 -0400)]
Create a btrfs backing dev info
This allows intelligent versions of unplug and congestion functions
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 25 Mar 2008 20:50:33 +0000 (16:50 -0400)]
Btrfs: Implement raid0 when multiple devices are present
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Mon, 24 Mar 2008 19:02:07 +0000 (15:02 -0400)]
Btrfs: Add support for device scanning and detection ioctls
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Mon, 24 Mar 2008 19:02:07 +0000 (15:02 -0400)]
Btrfs: Bring back mount -o ssd optimizations
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Mon, 24 Mar 2008 19:02:07 +0000 (15:02 -0400)]
Btrfs: Move device information into the super block so it can be scanned
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Mon, 24 Mar 2008 19:02:07 +0000 (15:02 -0400)]
Btrfs: Make the FS tree the last objectid in the tree of tree roots
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Mon, 24 Mar 2008 19:02:04 +0000 (15:02 -0400)]
Add /dev/btrfs-control for device scanning ioctls
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Mon, 24 Mar 2008 19:02:03 +0000 (15:02 -0400)]
Btrfs: Bring back find_free_extent CPU usage optimizations
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Mon, 24 Mar 2008 19:01:59 +0000 (15:01 -0400)]
Btrfs: Dynamic chunk and block group allocation
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Mon, 24 Mar 2008 19:01:56 +0000 (15:01 -0400)]
Btrfs: Add support for multiple devices per filesystem
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Mon, 24 Mar 2008 19:01:28 +0000 (15:01 -0400)]
Match the extent tree code to btrfs-progs for multi-device merging
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Thu, 21 Feb 2008 14:30:08 +0000 (09:30 -0500)]
Btrfs: Use KM_USERN instead of KM_IRQ during data summing
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Wed, 20 Feb 2008 21:02:51 +0000 (16:02 -0500)]
Btrfs: Disable sysfs files on older kernels
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Wed, 20 Feb 2008 20:44:32 +0000 (15:44 -0500)]
Btrfs: Make sure bio pages are adjacent during bulk csumming
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Wed, 20 Feb 2008 21:11:05 +0000 (16:11 -0500)]
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>
Greg KH [Wed, 20 Feb 2008 19:14:16 +0000 (14:14 -0500)]
btrfs: fixes for kobject changes in mainline
Here's a patch against the unstable tree that gets the code to build
against Linus's current tree (2.6.24-git12). This is needed as the
kobject/kset api has changed there.
I tried to make the smallest changes needed, and it builds and loads
successfully, but I don't have a btrfs volume anywhere (yet) to try to
see if things still work properly :)
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Wed, 20 Feb 2008 17:07:25 +0000 (12:07 -0500)]
Btrfs: While doing checksums on bios, cache the extent_buffer mapping
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Wed, 20 Feb 2008 17:07:25 +0000 (12:07 -0500)]
Btrfs: checksum file data at bio submission time instead of during writepage
When we checkum file data during writepage, the checksumming is done one
page at a time, making it difficult to do bulk metadata modifications
to insert checksums for large ranges of the file at once.
This patch changes btrfs to checksum on a per-bio basis instead. The
bios are checksummed before they are handed off to the block layer, so
each bio is contiguous and only has pages from the same inode.
Checksumming on a bio basis allows us to insert and modify the file
checksum items in large groups. It also allows the checksumming to
be done more easily by async worker threads.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 19 Feb 2008 21:24:18 +0000 (16:24 -0500)]
Btrfs: Properly cast before shifting
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 19 Feb 2008 17:55:05 +0000 (12:55 -0500)]
Btrfs: Take the extent lock before dropping the delalloc bits
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Yan Zheng [Tue, 19 Feb 2008 16:41:02 +0000 (11:41 -0500)]
Btrfs: Fix looping on readdir of the subvol roots
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Tue, 19 Feb 2008 16:29:24 +0000 (11:29 -0500)]
Btrfs: Properly clear dirty and delalloc extent bits while preparing the file for write
Yan Zheng noticed that we don't clear the extent state tree dirty and delalloc
bits when we clear the dirty bits on the page during file write.
This leads to csum errors later on.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Mon, 18 Feb 2008 21:33:44 +0000 (16:33 -0500)]
Btrfs: Remove extent back refs in batches, and avoid duplicate searches
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Chris Mason [Mon, 18 Feb 2008 17:12:38 +0000 (12:12 -0500)]
Btrfs: Allocator improvements
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>
Chris Mason [Fri, 15 Feb 2008 18:19:35 +0000 (13:19 -0500)]
Btrfs: Disable tree defrag in SSD mode
Signed-off-by: Chris Mason <chris.mason@oracle.com>
projects / platform / kernel / linux-3.10.git / log