Liu Bo b9ca0664dc Btrfs: do not set subvolume flags in readonly mode ... $ mkfs.btrfs /dev/sdb7 $ btrfstune -S1 /dev/sdb7 $ mount /dev/sdb7 /mnt/btrfs mount: block device /dev/sdb7 is write-protected, mounting read-only $ btrfs dev add /dev/sdb8 /mnt/btrfs/ Now we get a btrfs in which mnt flags has readonly but sb flags does not. So for those ioctls that only check sb flags with MS_RDONLY, it is going to be a problem. Setting subvolume flags is such an ioctl, we should use mnt_want_write_file() to check RO flags. Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>		2012-07-23 16:27:58 -04:00
..
acl.c	Btrfs: cache no acl on new inodes	2012-05-30 10:23:27 -04:00
async-thread.c	btrfs: return void in functions without error conditions	2012-03-22 01:45:34 +01:00
async-thread.h	btrfs: return void in functions without error conditions	2012-03-22 01:45:34 +01:00
backref.c	Btrfs: leave critical region in btrfs_find_all_roots as soon as possible	2012-06-27 16:34:39 +02:00
backref.h	Btrfs: use the tree modification log for backref resolving	2012-05-30 15:17:34 +02:00
btrfs_inode.h	Btrfs: call filemap_fdatawrite twice for compression	2012-06-14 21:30:54 -04:00
check-integrity.c	Btrfs: use rcu to protect device->name	2012-06-14 21:29:16 -04:00
check-integrity.h
compat.h
compression.c	Merge branch 'for-linus-min' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2012-04-13 19:41:27 -07:00
compression.h	btrfs: return void in functions without error conditions	2012-03-22 01:45:34 +01:00
ctree.c	Btrfs: resolve tree mod log locking issue in btrfs_next_leaf	2012-06-27 16:34:40 +02:00
ctree.h	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2012-06-21 13:41:07 -07:00
delayed-inode.c	Btrfs: flush delayed inodes if we're short on space	2012-07-23 15:41:40 -04:00
delayed-inode.h	Btrfs: flush delayed inodes if we're short on space	2012-07-23 15:41:40 -04:00
delayed-ref.c	Btrfs: use delayed ref sequence numbers for all fs-tree updates	2012-05-30 18:18:21 +02:00
delayed-ref.h	Btrfs: use delayed ref sequence numbers for all fs-tree updates	2012-05-30 18:18:21 +02:00
dir-item.c	btrfs: replace many BUG_ONs with proper error handling	2012-03-22 11:52:54 +01:00
disk-io.c	Btrfs: do not ignore errors from btrfs_cleanup_fs_roots() when mounting	2012-07-23 16:27:53 -04:00
disk-io.h	btrfs: Drop unused function btrfs_abort_devices()	2012-05-30 10:23:39 -04:00
export.c	->encode_fh() API change	2012-05-29 23:28:33 -04:00
export.h
extent-tree.c	Btrfs: change how we indicate we're adding csums	2012-07-23 16:27:55 -04:00
extent_io.c	Btrfs: hold a ref on the inode during writepages	2012-07-02 15:39:18 -04:00
extent_io.h	Merge branch 'for-chris' of git://git.jan-o-sch.net/btrfs-unstable into for-linus	2012-05-31 16:49:53 -04:00
extent_map.c
extent_map.h
file-item.c	Btrfs: change how we indicate we're adding csums	2012-07-23 16:27:55 -04:00
file.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2012-07-05 13:06:25 -07:00
free-space-cache.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2012-07-05 13:06:25 -07:00
free-space-cache.h
hash.h
inode-item.c	Merge branch 'error-handling' into for-linus	2012-03-28 20:31:37 -04:00
inode-map.c	Btrfs: show useful info in space reservation tracepoint	2012-03-29 09:57:44 -04:00
inode-map.h
inode.c	Btrfs: fix typo in cow_file_range_async and async_cow_submit	2012-07-23 16:27:55 -04:00
ioctl.c	Btrfs: do not set subvolume flags in readonly mode	2012-07-23 16:27:58 -04:00
ioctl.h	Btrfs: add DEVICE_READY ioctl	2012-07-23 16:27:42 -04:00
Kconfig
locking.c	Btrfs: reduce calls to wake_up on uncontended locks	2012-07-23 15:36:18 -04:00
locking.h	btrfs: return void in functions without error conditions	2012-03-22 01:45:34 +01:00
lzo.c
Makefile
ordered-data.c	Btrfs: call filemap_fdatawrite twice for compression	2012-06-14 21:30:54 -04:00
ordered-data.h	Btrfs: finish ordered extents in their own thread	2012-05-30 10:23:33 -04:00
orphan.c	btrfs: replace many BUG_ONs with proper error handling	2012-03-22 11:52:54 +01:00
print-tree.c	Btrfs: read device stats on mount, write modified ones during commit	2012-05-30 10:23:41 -04:00
print-tree.h
rcu-string.h	Btrfs: use rcu to protect device->name	2012-06-14 21:29:16 -04:00
reada.c	Btrfs: set ioprio of scrub readahead to idle	2012-05-30 10:23:43 -04:00
relocation.c	Btrfs: fix error handling in __add_reloc_root()	2012-07-23 16:27:53 -04:00
root-tree.c	btrfs: replace many BUG_ONs with proper error handling	2012-03-22 11:52:54 +01:00
scrub.c	Btrfs: use rcu to protect device->name	2012-06-14 21:29:16 -04:00
struct-funcs.c	Btrfs: add the ability to cache a pointer into the eb	2012-03-26 17:04:23 -04:00
super.c	Btrfs: add DEVICE_READY ioctl	2012-07-23 16:27:42 -04:00
sysfs.c
transaction.c	Btrfs: change how we indicate we're adding csums	2012-07-23 16:27:55 -04:00
transaction.h	Btrfs: change how we indicate we're adding csums	2012-07-23 16:27:55 -04:00
tree-defrag.c
tree-log.c	Btrfs: return error of btrfs_update_inode() to caller	2012-07-23 16:27:54 -04:00
tree-log.h	btrfs: return void in functions without error conditions	2012-03-22 01:45:34 +01:00
ulist.c	Merge branch 'for-chris' of git://git.jan-o-sch.net/btrfs-unstable into for-linus	2012-05-31 16:49:53 -04:00
ulist.h	Merge branch 'for-chris' of git://git.jan-o-sch.net/btrfs-unstable into for-linus	2012-05-31 16:49:53 -04:00
version.h
volumes.c	Btrfs: add DEVICE_READY ioctl	2012-07-23 16:27:42 -04:00
volumes.h	Btrfs: add DEVICE_READY ioctl	2012-07-23 16:27:42 -04:00
xattr.c	Btrfs: use i_version instead of our own sequence	2012-05-30 10:23:27 -04:00
xattr.h
zlib.c