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Author SHA1 Message Date
Yan
65555a06b4 Btrfs: Off by one fixes in extent_map.c 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:57 -04:00
Chris Mason
f578d4bd7e 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>
 2008-09-25 11:03:57 -04:00
Chris Mason
5ee78ac70f Btrfs: Fix split_leaf to avoid incorrect double splits 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:57 -04:00
Chris Mason
ff190c0c00 Btrfs: Avoid recursive KM_USER1 mappings in copy_extent_buffer 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:57 -04:00
Chris Mason
3685f79165 Btrfs: CPU usage optimizations in push and the extent_map code 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:57 -04:00
Chris Mason
59d169e2b3 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>
 2008-09-25 11:03:57 -04:00
Jens Axboe
b4a2a0edfd 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>
 2008-09-25 11:03:57 -04:00
Jens Axboe
bbf0d0062d 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>
 2008-09-25 11:03:57 -04:00
Jens Axboe
0a2118dfd4 Btrfs: Fix bi_end_io() functions on > 2.6.23 kernels 
It now returns void and it is never called for partial completions, so
the bio->bi_size check must go.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:57 -04:00
Jens Axboe
ae2f5411c4 btrfs: 32-bit type problems 
An assorted set of casts to get rid of the warnings on 32-bit archs.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:57 -04:00
Yan Zheng
44b36eb20b Btrfs: Properly setup root key while reading the root 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:57 -04:00
Chris Mason
6d7231f7d3 Btrfs: Fix typo: owner is a 64 bit field 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:57 -04:00
Chris Mason
7936ca3883 Btrfs: Default to 8k max packed tails 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:57 -04:00
Chris Mason
a6b6e75e09 Btrfs: Defrag only leaves, and only when the parent node has a single objectid 
This allows us to defrag huge directories, but skip the expensive defrag
case in more common usage, where it does not help as much.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:57 -04:00
Chris Mason
ff79f8190b Btrfs: Add back file data checksumming 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:57 -04:00
Chris Mason
cf786e79e3 Btrfs: Defrag: only walk into nodes with the defrag bit set 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Chris Mason
304fced668 Btrfs: balance_dirty_pages_ratelimited is causing problems, use nr == 1 always 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Chris Mason
0f1ebbd159 Btrfs: Large block related defrag optimizations 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Chris Mason
19c00ddcc3 Btrfs: Add back metadata checksumming 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Chris Mason
0f82731fc5 Breakout BTRFS_SETGET_FUNCS into a separate C file, the inlines were too big. 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Chris Mason
810191ff30 Btrfs: extent_map optimizations to cut down on CPU usage 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -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
4dc119046d Btrfs: Add an extent buffer LRU to reduce radix tree hits 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Chris Mason
e19caa5f0e Btrfs: Fix allocation routines to avoid intermixing data and metadata allocations 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Chris Mason
6b80053d02 Btrfs: Add back the online defragging code 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Chris Mason
09e71a3263 Btrfs: Use an array of pages in the extent buffers to reduce the cost of find_get_page 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Chris Mason
14048ed0c4 Btrfs: Cache extent buffer mappings 
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
1a5bc167f6 Btrfs: Change the remaining radix trees used by extent-tree.c to extent_map trees 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Chris Mason
96b5179d0d Btrfs: Stop using radix trees for the block group cache 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Chris Mason
f510cfecfc Btrfs: Fix extent_buffer and extent_state leaks 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Chris Mason
ae5252bd51 Btrfs: Go back to kmaps instead of page_address in extent_buffers 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Chris Mason
6d36dcd48f Btrfs: Avoid memcpy where possible in extent_buffers 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Chris Mason
479965d66e Btrfs: Optimizations for the extent_buffer code 
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
50b78c24d5 btrfs_get_extent should treat inline extents as though they hold a whole block 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Christoph Hellwig
b3cfa35a49 Btrfs: factor page private preparations into a helper 
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Yan
8e1cd76664 Btrfs: Fix double free and off by one in inode.c 
The first change removes  potential double free, the second fix a off
by one error.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Yan
bab9fb035f Btrfs: truncate: don't update inode->i_blocks when extent is a hole 
I think check whether extent is a hole before update 'inode->i_blocks'
is unconditional required. (original codes check it only when
del_item isn't equal to 0)

Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Yan
23223584e4 create btrfs_path slab with the correct size 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Yan
a61721d5b7 fix found_type decrement in btrfs_truncate_in_trans 
found_type has already been decreased by codes above the change,  I
think decrease it by one again doesn't make sense.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Chris Mason
cf67582bb2 Btrfs: Fix duplicate ENOSPC checks in find_free_extent 
find_free_extent would fail to wrap around to the start of the drive because
it was doing the enospc case checking twice in some cases, causing it
to return -ENOSPC early.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Chris Mason
d3c2fdcf7b Btrfs: Use balance_dirty_pages_nr on btree blocks 
btrfs_btree_balance_dirty is changed to pass the number of pages dirtied
for more accurate dirty throttling.  This lets the VM make better decisions
about when to force some writeback.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:00:48 -04:00
Linus Torvalds
72d31053f6 Linux 2.6.27-rc7 2008-09-21 15:29:55 -07:00
Linus Torvalds
d541b22abd Merge branch 'hwmon-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6 
* 'hwmon-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
  hwmon: (ad7414) Make ad7414_update_device() static
  hwmon: (it87) Fix fan tachometer reading in IT8712F rev 0x7 (I)
  hwmon: (atxp1) Fix device detection logic
 2008-09-21 12:41:19 -07:00
Linus Torvalds
6f21d806f6 Merge branch 'kvm-updates/2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm 
* 'kvm-updates/2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm:
  KVM: ia64: 'struct fdesc' build fix
 2008-09-21 12:40:56 -07:00
Linus Torvalds
e59e14b660 Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus 
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  [MIPS] vmlinux.lds.S: handle .text.*
  [MIPS] Fix potential latency problem due to non-atomic cpu_wait.
  [MIPS] SMTC: Clear TIF_FPUBOUND on clone / fork.
  [MIPS] Fix 64-bit IP checksum code
 2008-09-21 12:40:30 -07:00
Linus Torvalds
5c0a95c73f Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc 
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc:
  mmc_test: initialize mmc_test_lock statically
  mmc_block: handle error from mmc_register_driver()
  atmel-mci: Set MMC_CAP_NEEDS_POLL if no detect_pin
  atmel-mci: Fix bogus debugfs file size
  atmel-mci: Fix memory leak in atmci_regs_show
  atmel-mci: debugfs: enable clock before dumping regs
  tmio_mmc: fix compilation with debug enabled
 2008-09-21 12:38:45 -07:00
Jean Delvare
baaea1dc0b MAINTAINERS: Various fixes 
* Normalize some S: entries to match the enumeration at the beginning
  of the file.
* Change one mailing list entry from S: to L:.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2008-09-21 12:38:22 -07:00
Jean Delvare
795fb7e74d MAINTAINERS: Trivial whitespace cleanups 
* Drop trailing whitespace.
* Replace spaces and combinations of spaces and tabs by single tabs.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2008-09-21 12:38:22 -07:00