Ryusuke Konishi fe0627e7b3 nilfs2: fix timing issue between rmcp and chcp ioctls ... The checkpoint deletion ioctl (rmcp ioctl) has potential for breaking snapshot because it is not fully exclusive with checkpoint mode change ioctl (chcp ioctl). The rmcp ioctl first tests if the specified checkpoint is a snapshot or not within nilfs_cpfile_delete_checkpoint function, and then calls nilfs_cpfile_delete_checkpoints function to actually invalidate the checkpoint only if it's not a snapshot. However, the checkpoint can be changed into a snapshot by the chcp ioctl between these two operations. In that case, calling nilfs_cpfile_delete_checkpoints() wrongly invalidates the snapshot, which leads to snapshot list corruption and snapshot count mismatch. This fixes the issue by changing nilfs_cpfile_delete_checkpoints() so that it reconfirms the target checkpoints are snapshot or not. This second check is exclusive with the chcp operation since it is protected by an existing semaphore. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Cc: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2012-07-30 17:25:19 -07:00
..
9p	VFS: Pass mount flags to sget()	2012-07-14 16:38:34 +04:00
adfs	stop passing nameidata to ->lookup()	2012-07-14 16:34:32 +04:00
affs	affs: use memweight()	2012-07-30 17:25:16 -07:00
afs	VFS: Pass mount flags to sget()	2012-07-14 16:38:34 +04:00
autofs4	switch dentry_open() to struct path, make it grab references itself	2012-07-23 00:01:29 +04:00
befs	stop passing nameidata to ->lookup()	2012-07-14 16:34:32 +04:00
bfs	don't pass nameidata to ->create()	2012-07-14 16:34:47 +04:00
btrfs	btrfs: use printk_get_level and printk_skip_level, add __printf, fix fallout	2012-07-30 17:25:14 -07:00
cachefiles	switch dentry_open() to struct path, make it grab references itself	2012-07-23 00:01:29 +04:00
ceph	VFS: Pass mount flags to sget()	2012-07-14 16:38:34 +04:00
cifs	cifs: ensure that we always do cifsFileInfo_get under the spinlock	2012-07-25 14:51:30 -05:00
coda	don't pass nameidata to ->create()	2012-07-14 16:34:47 +04:00
configfs	stop passing nameidata to ->lookup()	2012-07-14 16:34:32 +04:00
cramfs	stop passing nameidata to ->lookup()	2012-07-14 16:34:32 +04:00
debugfs	Driver core merge for 3.6-rc1	2012-07-26 11:25:33 -07:00
devpts	VFS: Pass mount flags to sget()	2012-07-14 16:38:34 +04:00
dlm	dlm: fix missing dir remove	2012-07-16 14:24:43 -05:00
ecryptfs	switch dentry_open() to struct path, make it grab references itself	2012-07-23 00:01:29 +04:00
efs	stop passing nameidata to ->lookup()	2012-07-14 16:34:32 +04:00
exofs	Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-07-23 12:27:27 -07:00
exportfs	switch dentry_open() to struct path, make it grab references itself	2012-07-23 00:01:29 +04:00
ext2	ext2: use memweight()	2012-07-30 17:25:16 -07:00
ext3	ext3: use memweight()	2012-07-30 17:25:16 -07:00
ext4	ext4: use memweight()	2012-07-30 17:25:16 -07:00
fat	don't pass nameidata to ->create()	2012-07-14 16:34:47 +04:00
freevxfs	stop passing nameidata to ->lookup()	2012-07-14 16:34:32 +04:00
fscache
fuse	don't pass nameidata to ->create()	2012-07-14 16:34:47 +04:00
gfs2	Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmw	2012-07-24 17:57:05 -07:00
hfs	hfs: get rid of hfs_sync_super	2012-07-22 23:58:09 +04:00
hfsplus	hfsplus: get rid of write_super	2012-07-22 23:58:04 +04:00
hostfs	don't pass nameidata to ->create()	2012-07-14 16:34:47 +04:00
hpfs	don't pass nameidata to ->create()	2012-07-14 16:34:47 +04:00
hppfs	switch dentry_open() to struct path, make it grab references itself	2012-07-23 00:01:29 +04:00
hugetlbfs	don't pass nameidata to ->create()	2012-07-14 16:34:47 +04:00
isofs	Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs	2012-07-24 17:40:44 -07:00
jbd	jbd: Check return value of blkdev_issue_flush()	2012-07-09 23:38:36 +02:00
jbd2	jbd2: remove the second argument of kmap_atomic	2012-07-23 14:11:22 +08:00
jffs2	don't expose I_NEW inodes via dentry->d_inode	2012-07-23 00:00:58 +04:00
jfs	don't expose I_NEW inodes via dentry->d_inode	2012-07-23 00:00:58 +04:00
lockd	Merge branch 'for-3.5' of git://linux-nfs.org/~bfields/linux	2012-06-01 08:32:58 -07:00
logfs	VFS: Pass mount flags to sget()	2012-07-14 16:38:34 +04:00
minix	minixfs: fix block limit check	2012-07-30 17:25:19 -07:00
ncpfs	don't pass nameidata to ->create()	2012-07-14 16:34:47 +04:00
nfs	Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-07-23 12:27:27 -07:00
nfs_common
nfsd	switch dentry_open() to struct path, make it grab references itself	2012-07-23 00:01:29 +04:00
nilfs2	nilfs2: fix timing issue between rmcp and chcp ioctls	2012-07-30 17:25:19 -07:00
nls	nls: fix (and rename) mac NLS table files and config options	2012-06-01 19:51:22 -07:00
notify	switch dentry_open() to struct path, make it grab references itself	2012-07-23 00:01:29 +04:00
ntfs	ntfs: remove references to long gone super operations and unimplemented methods	2012-07-30 17:25:11 -07:00
ocfs2	ocfs2: use memweight()	2012-07-30 17:25:16 -07:00
omfs	don't pass nameidata to ->create()	2012-07-14 16:34:47 +04:00
openpromfs	stop passing nameidata to ->lookup()	2012-07-14 16:34:32 +04:00
proc	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc	2012-07-23 18:54:23 -07:00
pstore	pstore/ram: Make tracing log versioned	2012-07-17 16:48:09 -07:00
qnx4	qnx4fs: use memweight()	2012-07-30 17:25:16 -07:00
qnx6	stop passing nameidata to ->lookup()	2012-07-14 16:34:32 +04:00
quota	Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs	2012-07-24 17:40:44 -07:00
ramfs	don't pass nameidata to ->create()	2012-07-14 16:34:47 +04:00
reiserfs	don't expose I_NEW inodes via dentry->d_inode	2012-07-23 00:00:58 +04:00
romfs	stop passing nameidata to ->lookup()	2012-07-14 16:34:32 +04:00
squashfs	stop passing nameidata to ->lookup()	2012-07-14 16:34:32 +04:00
sysfs	Driver core merge for 3.6-rc1	2012-07-26 11:25:33 -07:00
sysv	fs/sysv: stop using write_super and s_dirt	2012-07-22 23:58:12 +04:00
ubifs	* Added another debugfs knob for forcing UBIFS R/O mode without flushing caches	2012-07-23 15:50:52 -07:00
udf	Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs	2012-07-24 17:40:44 -07:00
ufs	fs/ufs: get rid of write_super	2012-07-22 23:58:16 +04:00
xfs	Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-07-23 12:27:27 -07:00
aio.c	aio: now fput() is OK from interrupt context; get rid of manual delayed __fput()	2012-07-22 23:57:59 +04:00
anon_inodes.c	anon_inodes: move allocation of anon_inode into ->mount()	2012-03-20 21:29:45 -04:00
attr.c	notify_change(): check that i_mutex is held	2012-07-14 16:35:42 +04:00
bad_inode.c	don't pass nameidata to ->create()	2012-07-14 16:34:47 +04:00
binfmt_aout.c	VM: add "vm_mmap()" helper function	2012-04-20 17:29:13 -07:00
binfmt_elf_fdpic.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2012-05-23 17:42:39 -07:00
binfmt_elf.c	binfmt_elf: switch elf_map() to vm_mmap/vm_munmap	2012-05-30 21:04:55 -04:00
binfmt_em86.c	__register_binfmt() made void	2012-03-20 21:29:46 -04:00
binfmt_flat.c	binfmt_flat: use vm_munmap, we are missing ->mmap_sem there	2012-05-30 21:04:56 -04:00
binfmt_misc.c	vfs: Rename end_writeback() to clear_inode()	2012-05-06 13:43:41 +08:00
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	Merge branch 'for-3.5/core' of git://git.kernel.dk/linux-block	2012-05-30 08:52:42 -07:00
block_dev.c	vfs: Create function for iterating over block devices	2012-07-22 23:58:45 +04:00
buffer.c	block: fix infinite loop in __getblk_slow	2012-07-13 08:36:35 -07:00
char_dev.c
compat_binfmt_elf.c
compat_ioctl.c	The following text was taken from the original review request:	2012-03-24 10:24:31 -07:00
compat.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-06-01 11:53:44 -07:00
dcache.c	__d_unalias() should refuse to move mountpoints	2012-07-14 16:35:15 +04:00
dcookies.c	fs: reduce the use of module.h wherever possible	2012-02-28 19:31:58 -05:00
direct-io.c	fs/direct-io.c: adjust suspicious bit operation	2012-07-14 16:32:46 +04:00
drop_caches.c
eventfd.c	eventfd: change int to __u64 in eventfd_signal()	2012-05-31 17:49:32 -07:00
eventpoll.c	PM: Rename CAP_EPOLLWAKEUP to CAP_BLOCK_SUSPEND	2012-07-17 21:37:27 +02:00
exec.c	coredump: warn about unsafe suid_dumpable / core_pattern combo	2012-07-30 17:25:11 -07:00
fcntl.c	switch fcntl to fget_raw_light/fput_light	2012-05-29 23:28:30 -04:00
fhandle.c
fifo.c	fifo: Do not restart open() if it already found a partner	2012-07-16 08:33:14 -07:00
file_table.c	switch fput to task_work_add	2012-07-22 23:57:58 +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
fs_struct.c	get rid of ->mnt_longterm	2012-07-14 16:32:47 +04:00
fs-writeback.c	vfs: Move noop_backing_dev_info check from sync into writeback	2012-07-22 23:58:18 +04:00
generic_acl.c
inode.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2012-07-26 14:48:55 -07:00
internal.h	VFS: Split inode_permission()	2012-07-14 16:38:36 +04:00
ioctl.c	fs: reduce the use of module.h wherever possible	2012-02-28 19:31:58 -05:00
ioprio.c	Merge branch 'for-3.5/core' of git://git.kernel.dk/linux-block	2012-05-30 08:52:42 -07:00
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	C6X: add support to build with BINFMT_ELF_FDPIC	2012-05-15 09:17:34 -04:00
libfs.c	VFS: Pass mount flags to sget()	2012-07-14 16:38:34 +04:00
locks.c	locks: fix checking of fcntl_setlease argument	2012-07-23 12:46:01 -07:00
Makefile	fs: initial qnx6fs addition	2012-03-20 21:29:38 -04:00
mbcache.c
mount.h	get rid of magic in proc_namespace.c	2012-07-14 16:32:48 +04:00
mpage.c	fs: reduce the use of module.h wherever possible	2012-02-28 19:31:58 -05:00
namei.c	tidy up namei.c a bit	2012-07-23 00:00:55 +04:00
namespace.c	VFS: Comment mount following code	2012-07-14 16:38:32 +04:00
no-block.c
open.c	switch dentry_open() to struct path, make it grab references itself	2012-07-23 00:01:29 +04:00
pipe.c	pipe: remove KM_USER0 from comments	2012-07-24 15:27:34 +08:00
pnode.c	VFS: Make clone_mnt()/copy_tree()/collect_mounts() return errors	2012-07-14 16:37:27 +04:00
pnode.h
posix_acl.c	fs: reduce the use of module.h wherever possible	2012-02-28 19:31:58 -05:00
proc_namespace.c	get rid of magic in proc_namespace.c	2012-07-14 16:32:48 +04:00
read_write.c	vfs: allow custom EOF in generic_file_llseek code	2012-07-23 00:00:15 +04:00
read_write.h
readdir.c	switch readdir/getdents to fget_light/fput_light	2012-05-29 23:28:29 -04:00
select.c	posix_types.h: Cleanup stale __NFDBITS and related definitions	2012-07-26 13:36:43 -07:00
seq_file.c	seq_file: Add seq_vprintf function and export it	2012-06-11 13:16:35 +01:00
signalfd.c	switch signalfd4() to fget_light/fput_light	2012-05-29 23:28:30 -04:00
splice.c	splice: fix racy pipe->buffers uses	2012-06-13 21:16:42 +02:00
stack.c	fs: reduce the use of module.h wherever possible	2012-02-28 19:31:58 -05:00
stat.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2012-05-23 17:42:39 -07:00
statfs.c	switch statfs to fget_light/fput_light	2012-05-29 23:28:31 -04:00
super.c	VFS: Pass mount flags to sget()	2012-07-14 16:38:34 +04:00
sync.c	vfs: Avoid unnecessary WB_SYNC_NONE writeback during sys_sync and reorder sync passes	2012-07-22 23:59:01 +04:00
timerfd.c
utimes.c	switch utimes() to fget_light/fput_light	2012-05-29 23:28:32 -04:00
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:getxattr(): improve handling of allocation failures	2012-07-30 17:25:11 -07:00