diff options
| -rw-r--r-- | kernel/cpuset.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/kernel/cpuset.c b/kernel/cpuset.c index 7491352276b2..6633f3fb6417 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -1113,6 +1113,21 @@ static int cpuset_file_release(struct inode *inode, struct file *file) return 0; } +/* + * cpuset_rename - Only allow simple rename of directories in place. + */ +static int cpuset_rename(struct inode *old_dir, struct dentry *old_dentry, + struct inode *new_dir, struct dentry *new_dentry) +{ + if (!S_ISDIR(old_dentry->d_inode->i_mode)) + return -ENOTDIR; + if (new_dentry->d_inode) + return -EEXIST; + if (old_dir != new_dir) + return -EIO; + return simple_rename(old_dir, old_dentry, new_dir, new_dentry); +} + static struct file_operations cpuset_file_operations = { .read = cpuset_file_read, .write = cpuset_file_write, @@ -1125,6 +1140,7 @@ static struct inode_operations cpuset_dir_inode_operations = { .lookup = simple_lookup, .mkdir = cpuset_mkdir, .rmdir = cpuset_rmdir, + .rename = cpuset_rename, }; static int cpuset_create_file(struct dentry *dentry, int mode) |