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9ba1f6e44ed7a1fa52d3f292508bf921b5054172
linux/fs
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Liu Bo 9ba1f6e44e Btrfs: do not do balance in readonly mode 
In normal cases, we would not be allowed to do balance in RO mode.
However, when we're using a seeding device and adding another device to sprout,
things will change:

$ mkfs.btrfs /dev/sdb7
$ btrfstune -S 1 /dev/sdb7
$ mount /dev/sdb7 /mnt/btrfs -o ro
$ btrfs fi bal /mnt/btrfs   -----------------------> fail.
$ btrfs dev add /dev/sdb8 /mnt/btrfs
$ btrfs fi bal /mnt/btrfs   -----------------------> works!

It should not be designed as an exception, and we'd better add another check for
mnt flags.

Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Reviewed-by: Josef Bacik <josef@redhat.com>
2012-05-30 10:23:35 -04:00
..
9p
Merge tag 'for-linus-3.4-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs
2012-03-28 09:58:38 -07:00
adfs
switch open-coded instances of d_make_root() to new helper
2012-03-20 21:29:35 -04:00
affs
switch open-coded instances of d_make_root() to new helper
2012-03-20 21:29:35 -04:00
afs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-03-21 13:36:41 -07:00
autofs4
autofs: make the autofsv5 packet file descriptor use a packetized pipe
2012-04-29 13:30:08 -07:00
befs
switch open-coded instances of d_make_root() to new helper
2012-03-20 21:29:35 -04:00
bfs
switch open-coded instances of d_make_root() to new helper
2012-03-20 21:29:35 -04:00
btrfs
Btrfs: do not do balance in readonly mode
2012-05-30 10:23:35 -04:00
cachefiles
switch touch_atime to struct path
2012-03-20 21:29:41 -04:00
ceph
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
2012-03-28 10:01:29 -07:00
cifs
fs/cifs: fix parsing of dfs referrals
2012-05-03 22:47:39 -05:00
coda
Remove all #inclusions of asm/system.h
2012-03-28 18:30:03 +01:00
configfs
make configfs_pin_fs() return root dentry on success
2012-03-20 21:29:48 -04:00
cramfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-03-21 13:36:41 -07:00
debugfs
simple_open: automatically convert to simple_open()
2012-04-05 15:25:50 -07:00
devpts
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-03-21 13:36:41 -07:00
dlm
Merge tag 'dlm-fixes-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm
2012-04-23 18:22:42 -07:00
ecryptfs
ecryptfs: make register_filesystem() the last potential failure exit
2012-03-20 21:29:49 -04:00
efs
switch open-coded instances of d_make_root() to new helper
2012-03-20 21:29:35 -04:00
exofs
Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osd
2012-03-28 20:04:27 -07:00
exportfs
…
ext2
migrate ext2_fs.h guts to fs/ext2/ext2.h
2012-03-31 16:03:16 -04:00
ext3
ext3: move headers to fs/ext3/
2012-03-31 16:03:16 -04:00
ext4
Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
2012-04-23 19:52:00 -07:00
fat
fat: fix bug in enforcing Long File Name length
2012-03-23 16:58:40 -07:00
freevxfs
switch open-coded instances of d_make_root() to new helper
2012-03-20 21:29:35 -04:00
fscache
FS-Cache: Fix __fscache_uncache_all_inode_pages()'s outer loop
2011-07-21 10:59:16 -07:00
fuse
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
2012-04-18 17:29:05 -07:00
gfs2
GFS2: Instruct DLM to avoid queue convert slowdown
2012-04-24 13:26:50 +01:00
hfs
switch open-coded instances of d_make_root() to new helper
2012-03-20 21:29:35 -04:00
hfsplus
hfsplus: Fix potential buffer overflows
2012-05-04 17:11:24 -07:00
hostfs
Merge branch 'for-linus-3.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml
2012-03-27 18:29:53 -07:00
hpfs
switch open-coded instances of d_make_root() to new helper
2012-03-20 21:29:35 -04:00
hppfs
switch open-coded instances of d_make_root() to new helper
2012-03-20 21:29:35 -04:00
hugetlbfs
hugetlbfs: lockdep annotate root inode properly
2012-04-25 21:26:34 -07:00
isofs
switch open-coded instances of d_make_root() to new helper
2012-03-20 21:29:35 -04:00
jbd
Merge tag 'pm-for-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2012-03-21 10:15:51 -07:00
jbd2
jbd2: use GFP_NOFS for blkdev_issue_flush
2012-04-23 21:43:41 -04:00
jffs2
Merge tag 'for-linus-3.4' of git://git.infradead.org/mtd-2.6
2012-03-30 17:31:56 -07:00
jfs
jfs: mising cleanup on register_filesystem() failure
2012-03-20 21:29:48 -04:00
lockd
lockd: fix the endianness bug
2012-04-13 13:50:52 -04:00
logfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-03-21 13:36:41 -07:00
minix
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-03-21 13:36:41 -07:00
ncpfs
Remove all #inclusions of asm/system.h
2012-03-28 18:30:03 +01:00
nfs
NFSv4.1: Use the correct hostname in the client identifier string
2012-04-30 12:04:58 -04:00
nfs_common
…
nfsd
nfsd: fix nfs4recover.c printk format warning
2012-04-30 12:28:48 -07:00
nilfs2
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-03-21 13:36:41 -07:00
nls
NLS: raname "maxlen" to "maxout" in UTF conversion routines
2011-11-26 19:58:47 -08:00
notify
fs/notify/notification.c: make subsys_initcall function static
2012-03-23 16:58:31 -07:00
ntfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-03-21 13:36:41 -07:00
ocfs2
ocfs2: ->e_leaf_clusters endianness breakage
2012-04-13 12:31:43 -04:00
omfs
switch open-coded instances of d_make_root() to new helper
2012-03-20 21:29:35 -04:00
openpromfs
switch open-coded instances of d_make_root() to new helper
2012-03-20 21:29:35 -04:00
proc
revert "proc: clear_refs: do not clear reserved pages"
2012-04-25 21:26:34 -07:00
pstore
Merge branch 'akpm' (Andrew's patch-bomb)
2012-04-05 15:30:34 -07:00
qnx4
qnx4: new helper - try_extent()
2012-03-20 21:29:52 -04:00
qnx6
fs: initial qnx6fs addition
2012-03-20 21:29:38 -04:00
quota
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2012-03-28 10:00:14 -07:00
ramfs
tidy up after d_make_root() conversion
2012-03-20 21:29:37 -04:00
reiserfs
Merge tag 'split-asm_system_h-for-linus-20120328' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system
2012-03-28 15:58:21 -07:00
romfs
Merge tag 'for-linus-3.4' of git://git.infradead.org/mtd-2.6
2012-03-30 17:31:56 -07:00
squashfs
Merge tag 'squashfs-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-next
2012-03-28 18:05:54 -07:00
sysfs
sysfs: handle 'parent deleted before child added'
2012-04-10 14:48:51 -07:00
sysv
switch open-coded instances of d_make_root() to new helper
2012-03-20 21:29:35 -04:00
ubifs
Merge tag 'upstream-3.4-rc1' of git://git.infradead.org/linux-ubifs
2012-03-23 09:27:40 -07:00
udf
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2012-03-28 10:00:14 -07:00
ufs
Remove all #inclusions of asm/system.h
2012-03-28 18:30:03 +01:00
xfs
Merge tag 'split-asm_system_h-for-linus-20120328' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system
2012-03-28 15:58:21 -07:00
aio.c
kill mm argument of vm_munmap()
2012-04-21 01:58:20 -04:00
anon_inodes.c
anon_inodes: move allocation of anon_inode into ->mount()
2012-03-20 21:29:45 -04:00
attr.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
bad_inode.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
binfmt_aout.c
VM: add "vm_mmap()" helper function
2012-04-20 17:29:13 -07:00
binfmt_elf_fdpic.c
VM: add "vm_mmap()" helper function
2012-04-20 17:29:13 -07:00
binfmt_elf.c
VM: add "vm_mmap()" helper function
2012-04-20 17:29:13 -07:00
binfmt_em86.c
__register_binfmt() made void
2012-03-20 21:29:46 -04:00
binfmt_flat.c
VM: add "vm_mmap()" helper function
2012-04-20 17:29:13 -07:00
binfmt_misc.c
magic.h: move some FS magic numbers into magic.h
2012-03-23 16:58:31 -07:00
binfmt_script.c
__register_binfmt() made void
2012-03-20 21:29:46 -04:00
binfmt_som.c
VM: add "vm_mmap()" helper function
2012-04-20 17:29:13 -07:00
bio-integrity.c
fs: remove the second argument of k[un]map_atomic()
2012-03-20 21:48:21 +08:00
bio.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
block_dev.c
magic.h: move some FS magic numbers into magic.h
2012-03-23 16:58:31 -07:00
buffer.c
fs/buffer.c: remove BUG() in possible but rare condition
2012-04-25 21:26:33 -07:00
char_dev.c
char_dev.c: fix up some whitespace errors
2011-12-13 11:18:17 -08:00
compat_binfmt_elf.c
…
compat_ioctl.c
Merge tag 'module-for-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2012-03-24 10:24:31 -07:00
compat.c
Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-03-29 18:12:23 -07:00
dcache.c
vfs: make word-at-a-time accesses handle a non-existing page
2012-05-03 14:01:40 -07:00
dcookies.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
direct-io.c
Restore direct_io / truncate locking API
2012-02-23 15:56:21 -08:00
drop_caches.c
…
eventfd.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
eventpoll.c
epoll: clear the tfile_check_list on -ELOOP
2012-04-25 21:26:33 -07:00
exec.c
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-04-04 10:04:42 -07:00
fcntl.c
Wrap accesses to the fd_sets in struct fdtable
2012-02-19 10:30:52 -08:00
fhandle.c
vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb
2012-01-06 23:16:53 -05:00
fifo.c
…
file_table.c
vfs: drop_file_write_access() made static
2012-03-20 21:29:32 -04:00
file.c
Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-03-29 18:12:23 -07:00
filesystems.c
vfs: convert fs_supers to hlist
2012-01-03 22:52:39 -05:00
fs_struct.c
Merge tag 'module-for-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2012-03-24 10:24:31 -07:00
fs-writeback.c
Merge tag 'writeback-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux
2012-03-28 10:07:27 -07:00
generic_acl.c
switch posix_acl_equiv_mode() to umode_t *
2011-08-01 02:10:06 -04:00
inode.c
trim includes in inode.c
2012-03-20 21:29:51 -04:00
internal.h
vfs: protect remounting superblock read-only
2012-01-06 23:20:12 -05:00
ioctl.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
ioprio.c
block: strip out locking optimization in put_io_context()
2012-02-07 07:51:30 +01:00
Kconfig
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-03-21 13:36:41 -07:00
Kconfig.binfmt
fs: binfmt_elf: create Kconfig variable for PIE randomization
2012-01-10 16:30:51 -08:00
libfs.c
dentry leak in simple_fill_super() failure exit
2012-04-09 01:39:22 -04:00
locks.c
CIFS: Fix VFS lock usage for oplocked files
2012-04-01 13:54:27 -05:00
Makefile
fs: initial qnx6fs addition
2012-03-20 21:29:38 -04:00
mbcache.c
…
mount.h
vfs: keep list of mounts for each superblock
2012-01-06 23:20:12 -05:00
mpage.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
namei.c
vfs: make word-at-a-time accesses handle a non-existing page
2012-05-03 14:01:40 -07:00
namespace.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2012-01-08 13:21:22 -08:00
no-block.c
…
open.c
Wrap accesses to the fd_sets in struct fdtable
2012-02-19 10:30:52 -08:00
pipe.c
pipes: add a "packetized pipe" mode for writing
2012-04-29 13:12:42 -07:00
pnode.c
vfs: switch pnode.h macros to struct mount *
2012-01-03 22:57:11 -05:00
pnode.h
vfs: switch pnode.h macros to struct mount *
2012-01-03 22:57:11 -05:00
posix_acl.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
proc_namespace.c
vfs: switch ->show_options() to struct dentry *
2012-01-06 23:19:54 -05:00
read_write.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
read_write.h
…
readdir.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
select.c
Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-03-29 18:12:23 -07:00
seq_file.c
Merge tag 'module-for-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2012-03-24 10:24:31 -07:00
signalfd.c
epoll: ep_unregister_pollwait() can use the freed pwq->whead
2012-02-24 11:42:50 -08:00
splice.c
tcp: tcp_sendpages() should call tcp_push() once
2012-04-05 19:04:27 -04:00
stack.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
stat.c
Merge tag 'module-for-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2012-03-24 10:24:31 -07:00
statfs.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
super.c
Merge tag 'module-for-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2012-03-24 10:24:31 -07:00
sync.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
timerfd.c
…
utimes.c
…
xattr_acl.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
xattr.c
fs/xattr.c:setxattr(): improve handling of allocation failures
2012-04-05 15:25:50 -07:00