diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-11-17 09:15:18 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-11-17 09:15:18 -0800 |
| commit | 82abc2a97a4a3c7635c40e6dff571816062ec506 (patch) | |
| tree | bdafbd1d1030a1d4717b52d07d8d0c3a37e8a693 /fs/nilfs2/ioctl.c | |
| parent | cb20c28a9c41052c2d7220325dae60c16f417ded (diff) | |
| parent | 18dafac1a4c6c88867a50f9a82492976f20383d6 (diff) | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2:
nilfs2: deleted inconsistent comment in nilfs_load_inode_block()
nilfs2: deleted struct nilfs_dat_group_desc
nilfs2: fix lock order reversal in chcp operation
Diffstat (limited to 'fs/nilfs2/ioctl.c')
| -rw-r--r-- | fs/nilfs2/ioctl.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c index d24057d58f17..f6af76042d80 100644 --- a/fs/nilfs2/ioctl.c +++ b/fs/nilfs2/ioctl.c @@ -99,7 +99,8 @@ static int nilfs_ioctl_wrap_copy(struct the_nilfs *nilfs, static int nilfs_ioctl_change_cpmode(struct inode *inode, struct file *filp, unsigned int cmd, void __user *argp) { - struct inode *cpfile = NILFS_SB(inode->i_sb)->s_nilfs->ns_cpfile; + struct the_nilfs *nilfs = NILFS_SB(inode->i_sb)->s_nilfs; + struct inode *cpfile = nilfs->ns_cpfile; struct nilfs_transaction_info ti; struct nilfs_cpmode cpmode; int ret; @@ -109,14 +110,17 @@ static int nilfs_ioctl_change_cpmode(struct inode *inode, struct file *filp, if (copy_from_user(&cpmode, argp, sizeof(cpmode))) return -EFAULT; + mutex_lock(&nilfs->ns_mount_mutex); nilfs_transaction_begin(inode->i_sb, &ti, 0); ret = nilfs_cpfile_change_cpmode( cpfile, cpmode.cm_cno, cpmode.cm_mode); if (unlikely(ret < 0)) { nilfs_transaction_abort(inode->i_sb); + mutex_unlock(&nilfs->ns_mount_mutex); return ret; } nilfs_transaction_commit(inode->i_sb); /* never fails */ + mutex_unlock(&nilfs->ns_mount_mutex); return ret; } |