Christoph Hellwig 4504230a71 freeze_bdev: grab active reference to frozen superblocks ... Currently we held s_umount while a filesystem is frozen, despite that we might return to userspace and unlock it from a different process. Instead grab an active reference to keep the file system busy and add an explicit check for frozen filesystems in remount and reject the remount instead of blocking on s_umount. Add a new get_active_super helper to super.c for use by freeze_bdev that grabs an active reference to a superblock from a given block device. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>		2009-09-24 07:47:41 -04:00
..
9p	9p: Add fscache support to 9p	2009-09-23 13:03:46 -05:00
adfs
affs
afs	seq_file: constify seq_operations	2009-09-23 07:39:29 -07:00
autofs
autofs4
befs	const: mark remaining super_operations const	2009-09-22 07:17:24 -07:00
bfs
btrfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2009-09-22 07:51:45 -07:00
cachefiles
cifs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2009-09-22 07:51:45 -07:00
coda
configfs
cramfs
debugfs
devpts	Move magic numbers into magic.h	2009-09-23 07:39:28 -07:00
dlm	seq_file: constify seq_operations	2009-09-23 07:39:29 -07:00
ecryptfs	const: mark remaining address_space_operations const	2009-09-22 07:17:24 -07:00
efs
exofs	exofs: remove BKL from super operations	2009-09-24 07:47:38 -04:00
exportfs
ext2	ext2: fix format string compile warning (ino_t)	2009-09-23 07:39:58 -07:00
ext3	const: make struct super_block::s_qcop const	2009-09-22 07:17:24 -07:00
ext4	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2009-09-22 07:51:45 -07:00
fat
freevxfs
fscache
fuse
gfs2	headers: utsname.h redux	2009-09-23 18:13:10 -07:00
hfs
hfsplus
hostfs
hpfs
hppfs
hugetlbfs	vfs: split generic_forget_inode() so that hugetlbfs does not have to copy it	2009-09-24 07:47:25 -04:00
isofs
jbd
jbd2	seq_file: constify seq_operations	2009-09-23 07:39:29 -07:00
jffs2	Merge git://git.infradead.org/mtd-2.6	2009-09-23 10:07:49 -07:00
jfs
lockd	headers: utsname.h redux	2009-09-23 18:13:10 -07:00
minix	V3 minixfs: add missing directory type checking	2009-09-23 07:39:57 -07:00
ncpfs	ncpfs: fix wrong check in __ncp_ioctl()	2009-09-23 07:39:42 -07:00
nfs	headers: utsname.h redux	2009-09-23 18:13:10 -07:00
nfs_common
nfsd	headers: utsname.h redux	2009-09-23 18:13:10 -07:00
nilfs2	const: mark remaining inode_operations as const	2009-09-22 07:17:24 -07:00
nls
notify
ntfs	ntfs: remove ntfs_file_write	2009-09-23 07:39:29 -07:00
ocfs2	headers: utsname.h redux	2009-09-23 18:13:10 -07:00
omfs	const: mark remaining inode_operations as const	2009-09-22 07:17:24 -07:00
openpromfs
partitions	const: make block_device_operations const	2009-09-22 07:17:25 -07:00
proc	/proc/kcore: update stat.st_size after memory hotplug	2009-09-23 07:39:42 -07:00
qnx4	qnx4: remove write support	2009-09-23 07:39:30 -07:00
quota	const: make struct super_block::s_qcop const	2009-09-22 07:17:24 -07:00
ramfs	ramfs: move RAMFS_MAGIC to include/linux/magic.h	2009-09-23 07:39:42 -07:00
reiserfs	const: make struct super_block::s_qcop const	2009-09-22 07:17:24 -07:00
romfs	fs/romfs: correct error-handling code	2009-09-24 07:47:37 -04:00
smbfs	smbfs: read buffer overflow	2009-09-23 07:39:27 -07:00
squashfs	const: mark remaining super_operations const	2009-09-22 07:17:24 -07:00
sysfs
sysv
ubifs	const: mark remaining address_space_operations const	2009-09-22 07:17:24 -07:00
udf
ufs
xfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2009-09-22 07:51:45 -07:00
aio.c	aio.c: move EXPORT* macros to line after function	2009-09-23 07:39:29 -07:00
anon_inodes.c	anonfd: split interface into file creation and install	2009-09-23 07:39:29 -07:00
attr.c
bad_inode.c
binfmt_aout.c
binfmt_elf_fdpic.c	mm: add get_dump_page	2009-09-22 07:17:40 -07:00
binfmt_elf.c	mm: add get_dump_page	2009-09-22 07:17:40 -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	freeze_bdev: grab active reference to frozen superblocks	2009-09-24 07:47:41 -04:00
buffer.c	fs/buffer.c: clean up EXPORT* macros	2009-09-23 07:39:29 -07:00
char_dev.c
compat_binfmt_elf.c
compat_ioctl.c
compat.c	fix compat_sys_utimensat()	2009-09-23 07:39:30 -07:00
dcache.c
dcookies.c
direct-io.c
drop_caches.c
eventfd.c	anonfd: split interface into file creation and install	2009-09-23 07:39:29 -07:00
eventpoll.c
exec.c	procfs: provide stack information for threads	2009-09-23 07:39:41 -07:00
fcntl.c
fifo.c
file_table.c
file.c
filesystems.c
fs_struct.c
fs-writeback.c
generic_acl.c
inode.c	vfs: optimize touch_time() too	2009-09-24 07:47:27 -04:00
internal.h
ioctl.c	vfs: explicitly cast s_maxbytes in fiemap_check_ranges	2009-09-24 07:47:31 -04:00
ioprio.c
Kconfig	tmpfs: depend on shmem	2009-09-22 07:17:41 -07:00
Kconfig.binfmt
libfs.c	libfs: return error code on failed attr set	2009-09-24 07:47:30 -04:00
locks.c	const: make lock_manager_operations const	2009-09-22 07:17:25 -07:00
Makefile
mbcache.c
mpage.c
namei.c
namespace.c
nfsctl.c
no-block.c
open.c	fs: change sys_truncate length parameter type	2009-09-23 09:21:05 -07:00
pipe.c
pnode.c
pnode.h
posix_acl.c
read_write.c	vfs: remove redundant position check in do_sendfile	2009-09-24 07:47:34 -04:00
read_write.h
readdir.c
select.c	poll/select: avoid arithmetic overflow in __estimate_accuracy()	2009-09-23 07:39:27 -07:00
seq_file.c	vfs: seq_file: add helpers for data filling	2009-09-24 07:47:35 -04:00
signalfd.c
splice.c
stack.c
stat.c
super.c	freeze_bdev: grab active reference to frozen superblocks	2009-09-24 07:47:41 -04:00
sync.c	fs/buffer.c: clean up EXPORT* macros	2009-09-23 07:39:29 -07:00
timerfd.c
utimes.c
xattr_acl.c
xattr.c