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David Sterba 7e75bf3ff3 btrfs: properly access unaligned checksum buffer 
On Fri, Mar 18, 2011 at 11:56:53AM -0400, Chris Mason wrote:
> Thanks for fielding this one.  Does put_unaligned_le32 optimize away on
> platforms with efficient access?  It would be great if we didn't need
> the #ifdef.

(quicktest: assembly output is same for put_unaligned_le32 and direct
assignment on my x86_64)
I was originally following examples in
Documentation/unaligned-memory-access.txt. From other code it seems to me that
the define CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS is intended for larger
portions of code. Macros/wrappers for {put,get}_unaligned* are chosen via
arch/<arch>/include/asm/unaligned.h accordingly, therefore it's safe to use
put_unaligned_le32 without the ifdef.

dave

Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-03-28 05:37:36 -04:00
..
9p
switch 9p
2011-01-12 20:03:43 -05:00
adfs
switch adfs
2011-01-12 20:02:45 -05:00
affs
switch affs
2011-01-12 20:03:42 -05:00
afs
afs: Fix oops in afs_unlink_writeback
2011-02-25 11:12:37 -08:00
autofs4
autofs4: clean ->d_release() and autofs4_free_ino() up
2011-01-18 01:21:29 -05:00
befs
befs: don't pass huge structs by value
2011-01-13 08:03:15 -08:00
bfs
fs: icache RCU free inodes
2011-01-07 17:50:26 +11:00
btrfs
btrfs: properly access unaligned checksum buffer
2011-03-28 05:37:36 -04:00
cachefiles
…
ceph
ceph: fix d_revalidate oopsen on NFS exports
2011-03-10 03:44:05 -05:00
cifs
[CIFS] update cifs version
2011-02-21 22:31:47 +00:00
coda
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
2011-01-13 10:27:28 -08:00
configfs
configfs: change depends -> select SYSFS
2011-01-16 21:22:29 +00:00
cramfs
cramfs: generate unique inode number for better inode cache usage
2011-01-13 08:03:23 -08:00
debugfs
convert get_sb_single() users
2010-10-29 04:16:28 -04:00
devpts
convert get_sb_single() users
2010-10-29 04:16:28 -04:00
dlm
dlm: use single thread workqueues
2011-02-11 16:50:47 -06:00
ecryptfs
eCryptfs: Copy up lower inode attrs in getattr
2011-02-21 14:46:36 -06:00
efs
fs: icache RCU free inodes
2011-01-07 17:50:26 +11:00
exofs
exofs: i_nlink races in rename()
2011-03-03 01:28:17 -05:00
exportfs
fs: dcache per-inode inode alias locking
2011-01-07 17:50:31 +11:00
ext2
ext2: Fix link count corruption under heavy link+rename load
2011-03-02 11:03:52 +01:00
ext3
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6
2011-01-21 07:33:37 -08:00
ext4
ext4: serialize unaligned asynchronous DIO
2011-02-12 08:17:34 -05:00
fat
fat: fix d_revalidate oopsen on NFS exports
2011-03-10 03:45:49 -05:00
freevxfs
fs: icache RCU free inodes
2011-01-07 17:50:26 +11:00
fscache
FS-Cache: Fix operation handling
2011-01-14 09:23:36 -08:00
fuse
fuse: fix d_revalidate oopsen on NFS exports
2011-03-10 03:44:31 -05:00
gfs2
gfs2: fix d_revalidate oopsen on NFS exports
2011-03-10 03:44:48 -05:00
hfs
hfs: fix rename() over non-empty directory
2011-03-03 01:28:40 -05:00
hfsplus
hfsplus: fix up a comparism in hfsplus_file_extend
2011-02-03 16:34:18 -07:00
hostfs
switch hostfs
2011-01-12 20:03:42 -05:00
hpfs
hpfs_setattr error case avoids unlock_kernel
2011-01-17 05:11:37 -05:00
hppfs
fs: icache RCU free inodes
2011-01-07 17:50:26 +11:00
hugetlbfs
fs: icache RCU free inodes
2011-01-07 17:50:26 +11:00
isofs
fix isofs d_op handling
2011-01-12 20:02:43 -05:00
jbd
fix comment typos concerning "consistent"
2010-12-10 16:04:28 +01:00
jbd2
jbd2: call __jbd2_log_start_commit with j_state_lock write locked
2011-02-12 08:18:24 -05:00
jffs2
Merge git://git.infradead.org/mtd-2.6
2011-01-17 11:15:30 -08:00
jfs
jfs: fix d_revalidate oopsen on NFS exports
2011-03-10 03:45:28 -05:00
lockd
NLM: Fix "kernel BUG at fs/lockd/host.c:417!" or ".../host.c:283!"
2011-01-25 15:24:47 -05:00
logfs
Merge branch 'for-2.6.38/core' of git://git.kernel.dk/linux-2.6-block
2011-01-13 10:45:01 -08:00
minix
minix: i_nlink races in rename()
2011-03-03 01:28:16 -05:00
ncpfs
move internal-only parts of ncpfs headers to fs/ncpfs
2011-01-12 20:03:43 -05:00
nfs
NFS: NFSROOT should default to "proto=udp"
2011-03-11 15:38:07 -05:00
nfs_common
NFS: Prevent memory allocation failure in nfsacl_encode()
2011-01-25 15:24:47 -05:00
nfsd
nfsd: wrong index used in inner loop
2011-03-08 19:46:10 -05:00
nilfs2
Merge branch 'i_nlink' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
2011-03-03 15:37:59 -08:00
nls
…
notify
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2011-01-13 10:05:56 -08:00
ntfs
NTFS: Fix invalid pointer dereference in ntfs_mft_record_alloc().
2011-01-31 12:58:11 +10:00
ocfs2
ocfs2: fix d_revalidate oopsen on NFS exports
2011-03-10 03:45:07 -05:00
omfs
new helper: mount_bdev()
2010-10-29 04:16:13 -04:00
openpromfs
fs: icache RCU free inodes
2011-01-07 17:50:26 +11:00
partitions
Fix corrupted OSF partition table parsing
2011-03-14 10:14:28 -07:00
proc
/proc/self is never going to be invalidated...
2011-03-10 03:41:53 -05:00
qnx4
fs: icache RCU free inodes
2011-01-07 17:50:26 +11:00
quota
quota: Fix deadlock during path resolution
2011-01-12 19:14:55 +01:00
ramfs
convert get_sb_nodev() users
2010-10-29 04:16:31 -04:00
reiserfs
reiserfs xattr ->d_revalidate() shouldn't care about RCU
2011-03-10 03:42:01 -05:00
romfs
fs: icache RCU free inodes
2011-01-07 17:50:26 +11:00
squashfs
squashfs: fix use of uninitialised variable in zlib & xz decompressors
2011-01-26 10:50:05 +10:00
sysfs
kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT
2011-01-20 17:02:05 -08:00
sysv
sysv: i_nlink races in rename()
2011-03-03 01:28:16 -05:00
ubifs
fs: icache RCU free inodes
2011-01-07 17:50:26 +11:00
udf
udf: fix i_nlink limit
2011-03-03 01:28:40 -05:00
ufs
ufs: i_nlink races in rename()
2011-03-03 01:28:16 -05:00
xfs
xfs: zero proper structure size for geometry calls
2011-03-01 21:21:13 -06:00
aio.c
aio: fix race between io_destroy() and io_submit()
2011-02-25 15:07:37 -08:00
anon_inodes.c
sanitize vfsmount refcounting changes
2011-01-16 13:47:07 -05:00
attr.c
…
bad_inode.c
fs: provide rcu-walk aware permission i_ops
2011-01-07 17:50:29 +11:00
binfmt_aout.c
…
binfmt_elf_fdpic.c
…
binfmt_elf.c
binfmt_elf: cleanups
2011-01-13 08:03:12 -08:00
binfmt_em86.c
…
binfmt_flat.c
…
binfmt_misc.c
convert get_sb_single() users
2010-10-29 04:16:28 -04:00
binfmt_script.c
…
binfmt_som.c
…
bio-integrity.c
bio-integrity: mark kintegrityd_wq highpri and CPU intensive
2011-01-03 15:01:48 +01:00
bio.c
bio: take care not overflow page count when mapping/copying user data
2010-11-10 14:40:43 +01:00
block_dev.c
fs/block_dev.c: fix new kernel-doc warning
2011-02-28 18:08:31 -08:00
buffer.c
fs: Use this_cpu_inc_return in buffer.c
2010-12-17 15:18:05 +01:00
char_dev.c
Merge branch 'for-2.6.38/core' of git://git.kernel.dk/linux-2.6-block
2011-01-13 10:45:01 -08:00
compat_binfmt_elf.c
…
compat_ioctl.c
Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
2011-01-07 14:39:20 -08:00
compat.c
compat breakage in preadv() and pwritev()
2011-03-13 16:29:07 -07:00
dcache.c
fs/dcache: allow d_obtain_alias() to return unhashed dentries
2011-03-10 05:18:54 -05:00
dcookies.c
…
direct-io.c
fs/direct-io.c: don't try to allocate more than BIO_MAX_PAGES in a bio
2011-01-20 17:02:05 -08:00
drop_caches.c
…
eventfd.c
Docbook: add fs/eventfd.c and fix typos in it
2011-02-21 15:07:04 -08:00
eventpoll.c
epoll: prevent creating circular epoll structures
2011-02-25 15:07:36 -08:00
exec.c
vfs: sparse: add __FMODE_EXEC
2011-02-02 16:03:19 -08:00
fcntl.c
vfs: sparse: add __FMODE_EXEC
2011-02-02 16:03:19 -08:00
fifo.c
…
file_table.c
CRED: Fix kernel panic upon security_file_alloc() failure.
2011-02-04 10:40:29 -08:00
file.c
…
filesystems.c
fs: rcu-walk for path lookup
2011-01-07 17:50:27 +11:00
fs_struct.c
sanitize vfsmount refcounting changes
2011-01-16 13:47:07 -05:00
fs-writeback.c
fs/fs-writeback.c: fix sync_inodes_sb() return value kernel-doc
2011-01-13 17:32:48 -08:00
generic_acl.c
fs: provide simple rcu-walk generic_check_acl implementation
2011-01-07 17:50:29 +11:00
inode.c
Merge branch 'for-linus' of git://neil.brown.name/md
2011-02-25 11:13:26 -08:00
internal.h
Fix over-zealous flush_disk when changing device size.
2011-02-24 17:25:47 +11:00
ioctl.c
fs: make block fiemap mapping length at least blocksize long
2011-02-02 16:03:20 -08:00
ioprio.c
ioprio: grab rcu_read_lock in sys_ioprio_{set,get}()
2010-11-15 10:23:31 +01:00
Kconfig
kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT
2011-01-20 17:02:05 -08:00
Kconfig.binfmt
coredump: default CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
2010-10-27 18:03:12 -07:00
libfs.c
pass default dentry_operations to mount_pseudo()
2011-01-12 20:03:43 -05:00
locks.c
Merge branch 'for-2.6.38' of git://linux-nfs.org/~bfields/linux
2011-01-14 13:17:26 -08:00
Makefile
Merge 'staging-next' to Linus's tree
2010-10-28 09:44:56 -07:00
mbcache.c
ext2: Resolve 'dereferencing pointer to incomplete type' when enabling EXT2_XATTR_DEBUG
2011-01-10 19:04:08 +01:00
mpage.c
fs/mpage.c: consolidate code
2011-01-13 17:32:32 -08:00
namei.c
nd->inode is not set on the second attempt in path_walk()
2011-03-08 21:16:28 -05:00
namespace.c
Unlock vfsmount_lock in do_umount
2011-02-24 02:10:57 -05:00
nfsctl.c
…
no-block.c
…
open.c
Check for immutable/append flag in fallocate path
2011-03-10 04:22:15 -05:00
pipe.c
Fix broken "pipe: use event aware wakeups" optimization
2011-01-20 16:21:59 -08:00
pnode.c
fs: scale mntget/mntput
2011-01-07 17:50:33 +11:00
pnode.h
…
posix_acl.c
NFS: Prevent memory allocation failure in nfsacl_encode()
2011-01-25 15:24:47 -05:00
read_write.c
fix signedness mess in rw_verify_area() on 64bit architectures
2011-01-12 20:06:58 -05:00
read_write.h
…
readdir.c
…
select.c
fs/select.c: fix information leak to userspace
2011-01-13 08:03:12 -08:00
seq_file.c
fs: take dcache_lock inside __d_path
2010-10-25 21:26:12 -04:00
signalfd.c
Merge branch 'hwpoison' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6
2010-10-26 10:13:10 -07:00
splice.c
Merge branch 'for-2.6.38/core' of git://git.kernel.dk/linux-2.6-block
2011-01-13 10:45:01 -08:00
stack.c
…
stat.c
Add an AT_NO_AUTOMOUNT flag to suppress terminal automount
2011-01-15 20:07:33 -05:00
statfs.c
…
super.c
vfs: call rcu_barrier after ->kill_sb()
2011-02-11 16:12:19 -08:00
sync.c
…
timerfd.c
…
utimes.c
…
xattr_acl.c
…
xattr.c
…