kernel_optimize_test/fs
Stefan Behrens 115930cb2d Btrfs: fix wrong write offset when replacing a device
Miao Xie reported the following issue:

The filesystem was corrupted after we did a device replace.

Steps to reproduce:
 # mkfs.btrfs -f -m single -d raid10 <device0>..<device3>
 # mount <device0> <mnt>
 # btrfs replace start -rfB 1 <device4> <mnt>
 # umount <mnt>
 # btrfsck <device4>

The reason for the issue is that we changed the write offset by mistake,
introduced by commit 625f1c8dc.

We read the data from the source device at first, and then write the
data into the corresponding place of the new device. In order to
implement the "-r" option, the source location is remapped using
btrfs_map_block(). The read takes place on the mapped location, and
the write needs to take place on the unmapped location. Currently
the write is using the mapped location, and this commit changes it
back by undoing the change to the write address that the aforementioned
commit added by mistake.

Reported-by: Miao Xie <miaox@cn.fujitsu.com>
Cc: <stable@vger.kernel.org> # 3.10+
Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
2013-07-19 15:07:26 -04:00
..
9p Second round of 9p patches for the 3.11 merge window. 2013-07-11 10:21:23 -07:00
adfs
affs
afs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-07-03 09:10:19 -07:00
autofs4 helper for reading ->d_count 2013-07-05 18:59:33 +04:00
befs
bfs
btrfs Btrfs: fix wrong write offset when replacing a device 2013-07-19 15:07:26 -04:00
cachefiles mm: remove lru parameter from __pagevec_lru_add and remove parts of pagevec API 2013-07-03 16:07:31 -07:00
ceph Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client 2013-07-09 12:39:10 -07:00
cifs CIFS: Fix a deadlock when a file is reopened 2013-07-11 18:05:41 -05:00
coda helper for reading ->d_count 2013-07-05 18:59:33 +04:00
configfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-07-14 11:42:26 -07:00
cramfs
debugfs
devpts
dlm
ecryptfs Code cleanups and improved buffer handling during page crypto operations 2013-07-11 10:20:18 -07:00
efivarfs efivarfs: we can use simple_lookup() now 2013-07-14 17:48:35 +04:00
efs
exofs
exportfs
ext2
ext3 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs 2013-07-09 12:08:43 -07:00
ext4 Various regression and bug fixes for ext4. 2013-07-14 21:47:51 -07:00
f2fs f2fs: fix readdir incorrectness 2013-07-08 13:35:48 +04:00
fat fatfs: add FAT_IOCTL_GET_VOLUME_ID 2013-07-09 10:33:25 -07:00
freevxfs
fscache
fuse mm: use totalram_pages instead of num_physpages at runtime 2013-07-03 16:07:35 -07:00
gfs2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-07-03 09:10:19 -07:00
hfs
hfsplus
hostfs
hpfs Merge branch 'hpfs' from Mikulas Patocka 2013-07-04 11:22:55 -07:00
hppfs clean up scary strncpy(dst, src, strlen(src)) uses 2013-07-03 16:07:41 -07:00
hugetlbfs
isofs
jbd
jbd2
jffs2
jfs A couple cleanups to JFS for 3.11 2013-07-11 10:19:34 -07:00
lockd Merge branch 'for-3.11' of git://linux-nfs.org/~bfields/linux 2013-07-17 13:43:55 -07:00
logfs
minix
ncpfs ncpfs: fix error return code in ncp_parse_options() 2013-07-09 10:33:25 -07:00
nfs NFS: Allow nfs_updatepage to extend a write under additional circumstances 2013-07-09 19:32:50 -04:00
nfs_common
nfsd Merge branch 'for-3.11' of git://linux-nfs.org/~bfields/linux 2013-07-17 13:43:55 -07:00
nilfs2 helper for reading ->d_count 2013-07-05 18:59:33 +04:00
nls
notify fsnotify: update comments concerning locking scheme 2013-07-09 10:33:20 -07:00
ntfs
ocfs2 ocfs2: fix NULL pointer dereference when traversing o2hb_all_regions 2013-07-03 16:07:25 -07:00
omfs
openpromfs
proc fs/proc/kcore.c: using strlcpy() instead of strncpy() 2013-07-03 16:08:02 -07:00
pstore Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-07-04 10:29:23 -07:00
qnx4
qnx6
quota quota: Convert use of typedef ctl_table to struct ctl_table 2013-07-04 19:22:55 +02:00
ramfs
reiserfs
romfs
squashfs
sysfs sysfs: prevent warning when only using binary attributes 2013-07-16 10:57:36 -07:00
sysv
ubifs Only a single patch which fixes a message. 2013-07-05 12:08:47 -07:00
udf
ufs
xfs xfs: update (#2) for 3.11-rc1 2013-07-13 11:40:24 -07:00
aio.c aio: fix wrong comment in aio_complete() 2013-07-03 16:08:06 -07:00
anon_inodes.c
attr.c
bad_inode.c
binfmt_aout.c mm: remove free_area_cache 2013-07-10 18:11:34 -07:00
binfmt_elf_fdpic.c
binfmt_elf.c mm: remove free_area_cache 2013-07-10 18:11:34 -07:00
binfmt_em86.c
binfmt_flat.c
binfmt_misc.c
binfmt_script.c
binfmt_som.c
bio-integrity.c
bio.c
block_dev.c Merge branch 'for-3.11/core' of git://git.kernel.dk/linux-block 2013-07-11 13:03:24 -07:00
buffer.c mm: vmscan: take page buffers dirty and locked state into account 2013-07-03 16:07:29 -07:00
char_dev.c
compat_binfmt_elf.c
compat_ioctl.c
compat.c
coredump.c coredump: '% at the end' shouldn't bypass core_uses_pid logic 2013-07-03 16:08:02 -07:00
coredump.h
dcache.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-07-03 09:10:19 -07:00
dcookies.c
direct-io.c
drop_caches.c
eventfd.c
eventpoll.c Merge branch 'akpm' (updates from Andrew Morton) 2013-07-03 17:12:13 -07:00
exec.c fs/exec.c:de_thread: mt-exec should update ->real_start_time 2013-07-03 16:08:03 -07:00
fcntl.c
fhandle.c
file_table.c fput: turn "list_head delayed_fput_list" into llist_head 2013-07-13 13:29:10 +04:00
file.c
filesystems.c
fs_struct.c
fs-writeback.c mm/writeback: don't check force_wait to handle bdi->work_list 2013-07-09 10:33:22 -07:00
generic_acl.c
inode.c
internal.h
ioctl.c
ioprio.c
Kconfig
Kconfig.binfmt
libfs.c make simple_lookup() usable for filesystems that set ->s_d_op 2013-07-14 17:43:25 +04:00
locks.c locks: move file_lock_list to a set of percpu hlist_heads and convert file_lock_lock to an lglock 2013-07-08 13:36:42 +04:00
Makefile
mbcache.c
mount.h
mpage.c
namei.c Safer ABI for O_TMPFILE 2013-07-13 13:26:37 +04:00
namespace.c
no-block.c
open.c Safer ABI for O_TMPFILE 2013-07-13 13:26:37 +04:00
pipe.c
pnode.c
pnode.h
posix_acl.c
proc_namespace.c
read_write.c vfs: export lseek_execute() to modules 2013-07-03 16:23:27 +04:00
readdir.c
select.c net: rename include/net/ll_poll.h to include/net/busy_poll.h 2013-07-10 17:08:27 -07:00
seq_file.c seq_file: add seq_list_*_percpu helpers 2013-07-08 13:36:41 +04:00
signalfd.c
splice.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-07-03 09:10:19 -07:00
stack.c
stat.c
statfs.c
super.c
sync.c
timerfd.c
utimes.c
xattr_acl.c
xattr.c