Mark Fasheh e1d227a42e btrfs: Handle unaligned length in extent_same ...

The extent-same code rejects requests with an unaligned length. This
poses a problem when we want to dedupe the tail extent of files as we
skip cloning the portion between i_size and the extent boundary.

If we don't clone the entire extent, it won't be deleted. So the
combination of these behaviors winds up giving us worst-case dedupe on
many files.

We can fix this by allowing a length that extents to i_size and
internally aligining those to the end of the block. This is what
btrfs_ioctl_clone() so we can just copy that check over.

Signed-off-by: Mark Fasheh <mfasheh@suse.de>
Signed-off-by: Chris Mason <clm@fb.com>

2015-06-10 07:02:50 -07:00

..

tests

Btrfs: qgroup: cleanup, remove an unsued parameter in btrfs_create_qgroup().

2015-04-13 07:52:44 -07:00

acl.c

btrfs: remove useless ACL check

2014-06-09 17:20:42 -07:00

async-thread.c

btrfs: use correct type for workqueue flags

2015-02-16 18:48:47 +01:00

async-thread.h

btrfs: use correct type for workqueue flags

2015-02-16 18:48:47 +01:00

backref.c

Btrfs: fix up read_tree_block to return proper error

2015-06-03 04:03:08 -07:00

backref.h

btrfs: cleanup, remove inode_item_info helper

2015-01-14 19:23:47 +01:00

btrfs_inode.h

Btrfs: fix metadata inconsistencies after directory fsync

2015-03-26 17:56:23 -07:00

check-integrity.c

Merge branch 'cleanups-post-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.1

2015-03-25 10:52:48 -07:00

check-integrity.h

block: submit_bio_wait() conversions

2013-11-24 16:33:41 -07:00

compression.c

Merge branch 'cleanups-post-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.1

2015-03-25 10:52:48 -07:00

compression.h

btrfs: constify structs with op functions or static definitions

2015-02-16 18:48:44 +01:00

ctree.c

Btrfs: fix up read_tree_block to return proper error

2015-06-03 04:03:08 -07:00

ctree.h

Btrfs: fix necessary chunk tree space calculation when allocating a chunk

2015-06-10 07:02:46 -07:00

delayed-inode.c

Btrfs: fill ->last_trans for delayed inode in btrfs_fill_inode.

2015-04-26 06:27:03 -07:00

delayed-inode.h

Btrfs: introduce the delayed inode ref deletion for the single link inode

2014-01-28 13:20:09 -08:00

delayed-ref.c

Btrfs: account for crcs in delayed ref processing

2015-04-10 14:04:47 -07:00

delayed-ref.h

Btrfs: account for crcs in delayed ref processing

2015-04-10 14:04:47 -07:00

dev-replace.c

btrfs: cleanup 64bit/32bit divs, compile time constants

2015-03-03 17:23:57 +01:00

dev-replace.h

Btrfs: add new sources for device replace code

2012-12-12 17:15:41 -05:00

dir-item.c

Btrfs: make xattr replace operations atomic

2014-11-20 17:20:07 -08:00

disk-io.c

Btrfs: fix up read_tree_block to return proper error

2015-06-03 04:03:08 -07:00

disk-io.h

Btrfs: disk-io: replace root args iff only fs_info used

2015-02-16 18:48:43 +01:00

export.c

VFS: normal filesystems (and lustre): d_inode() annotations

2015-04-15 15:06:57 -04:00

export.h

…

extent_io.c

Btrfs: set UNWRITTEN for prealloc'ed extents in fiemap

2015-06-03 04:03:03 -07:00

extent_io.h

btrfs: constify structs with op functions or static definitions

2015-02-16 18:48:44 +01:00

extent_map.c

Btrfs: do not move em to modified list when unpinning

2014-11-21 11:59:54 -08:00

extent_map.h

Btrfs: fix NULL pointer crash when running balance and scrub concurrently

2014-06-19 14:20:55 -07:00

extent-tree.c

Btrfs: fix necessary chunk tree space calculation when allocating a chunk

2015-06-10 07:02:46 -07:00

file-item.c

Merge branch 'cleanups-post-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.1

2015-03-25 10:52:48 -07:00

file.c

Btrfs: avoid syncing log in the fast fsync path when not necessary

2015-06-10 07:02:43 -07:00

free-space-cache.c

Btrfs: fix mutex unlock without prior lock on space cache truncation

2015-06-02 19:34:34 -07:00

free-space-cache.h

Btrfs: allow block group cache writeout outside critical section in commit

2015-04-10 14:07:22 -07:00

hash.c

btrfs: LLVMLinux: Remove VLAIS

2014-10-14 10:51:22 +02:00

hash.h

Btrfs: fix btrfs boot when compiled as built-in

2014-01-28 13:20:31 -08:00

inode-item.c

Btrfs: fix fsync log replay for inodes with a mix of regular refs and extrefs

2015-01-21 18:02:05 -08:00

inode-map.c

Btrfs: allow block group cache writeout outside critical section in commit

2015-04-10 14:07:22 -07:00

inode-map.h

Btrfs: Support reading/writing on disk free ino cache

2011-04-25 16:46:11 +08:00

inode.c

Btrfs: fix hang during inode eviction due to concurrent readahead

2015-06-03 04:03:09 -07:00

ioctl.c

btrfs: Handle unaligned length in extent_same

2015-06-10 07:02:50 -07:00

Kconfig

rcu: Make SRCU optional by using CONFIG_SRCU

2015-01-06 11:04:29 -08:00

locking.c

btrfs: fix lockups from btrfs_clear_path_blocking

2014-11-19 10:34:35 -08:00

locking.h

btrfs: fix lockups from btrfs_clear_path_blocking

2014-11-19 10:34:35 -08:00

lzo.c

btrfs: constify structs with op functions or static definitions

2015-02-16 18:48:44 +01:00

Makefile

Btrfs: add sanity tests for new qgroup accounting code

2014-06-09 17:20:49 -07:00

math.h

btrfs: cleanup 64bit/32bit divs, compile time constants

2015-03-03 17:23:57 +01:00

ordered-data.c

Btrfs: don't attach unnecessary extents to transaction on fsync

2015-06-10 07:02:44 -07:00

ordered-data.h

Btrfs: avoid syncing log in the fast fsync path when not necessary

2015-06-10 07:02:43 -07:00

orphan.c

btrfs: kill the key type accessor helpers

2014-09-17 13:37:12 -07:00

print-tree.c

btrfs: remove parameter blocksize from read_tree_block

2014-10-02 17:14:50 +02:00

print-tree.h

btrfs: make static code static & remove dead code

2013-05-06 15:55:23 -04:00

props.c

btrfs: constify structs with op functions or static definitions

2015-02-16 18:48:44 +01:00

props.h

Btrfs: add support for inode properties

2014-01-28 13:20:24 -08:00

qgroup.c

btrfs: qgroup: Fix possible leak in btrfs_add_qgroup_relation()

2015-06-02 19:34:35 -07:00

qgroup.h

btrfs: qgroup: do a reservation in a higher level.

2015-04-13 07:52:50 -07:00

raid56.c

Merge branch 'cleanups-post-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.1

2015-03-25 10:52:48 -07:00

raid56.h

Btrfs: Make raid_map array be inlined in btrfs_bio structure

2015-01-21 18:06:47 -08:00

rcu-string.h

Btrfs: use rcu to protect device->name

2012-06-14 21:29:16 -04:00

reada.c

Btrfs: add ref_count and free function for btrfs_bio

2015-01-21 18:06:48 -08:00

relocation.c

Btrfs: fix up read_tree_block to return proper error

2015-06-03 04:03:08 -07:00

root-tree.c

Btrfs: use bitfield instead of integer data type for the some variants in btrfs_root

2014-06-09 17:20:40 -07:00

scrub.c

Merge branch 'cleanups-post-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.1

2015-03-25 10:52:48 -07:00

send.c

Merge branch 'send_fixes_4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/fdmanana/linux into for-linus-4.2

2015-06-10 07:02:41 -07:00

send.h

btrfs: make static code static & remove dead code

2013-05-06 15:55:23 -04:00

struct-funcs.c

Btrfs: rewrite BTRFS_SETGET_FUNCS

2012-07-23 16:28:06 -04:00

super.c

Btrfs: show subvol= and subvolid= in /proc/mounts

2015-06-03 04:03:02 -07:00

sysfs.c

btrfs: constify structs with op functions or static definitions

2015-02-16 18:48:44 +01:00

sysfs.h

btrfs: switch helper macros to static inlines in sysfs.h

2015-03-03 17:24:02 +01:00

transaction.c

Btrfs: fix -ENOSPC when finishing block group creation

2015-06-03 04:03:04 -07:00

transaction.h

Btrfs: fix -ENOSPC when finishing block group creation

2015-06-03 04:03:04 -07:00

tree-defrag.c

btrfs: let tree defrag work in SSD mode

2015-06-02 19:34:33 -07:00

tree-log.c

Btrfs: remove csum_bytes_left

2015-06-03 04:03:06 -07:00

tree-log.h

Btrfs: fix metadata inconsistencies after directory fsync

2015-03-26 17:56:23 -07:00

ulist.c

Btrfs: do not export ulist functions

2014-01-29 07:06:27 -08:00

ulist.h

Btrfs: Fix memory corruption by ulist_add_merge() on 32bit arch

2014-08-15 07:43:19 -07:00

uuid-tree.c

Btrfs: make btrfs_search_forward return with nodes unlocked

2014-09-17 13:38:02 -07:00

volumes.c

Btrfs: fix necessary chunk tree space calculation when allocating a chunk

2015-06-10 07:02:46 -07:00

volumes.h

btrfs: remove unused fs_info arg from btrfs_close_extra_devices()

2015-02-16 18:48:45 +01:00

xattr.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2015-04-26 17:22:07 -07:00

xattr.h

btrfs: use generic posix ACL infrastructure

2014-01-25 23:58:18 -05:00

zlib.c

btrfs: constify structs with op functions or static definitions

2015-02-16 18:48:44 +01:00