diff options
Diffstat (limited to 'fs/fsopen.c')
| -rw-r--r-- | fs/fsopen.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/fs/fsopen.c b/fs/fsopen.c index a69b7c9cc59c..ce03f6521c88 100644 --- a/fs/fsopen.c +++ b/fs/fsopen.c @@ -209,7 +209,7 @@ err: return ret; } -static int vfs_cmd_create(struct fs_context *fc) +static int vfs_cmd_create(struct fs_context *fc, bool exclusive) { struct super_block *sb; int ret; @@ -220,7 +220,12 @@ static int vfs_cmd_create(struct fs_context *fc) if (!mount_capable(fc)) return -EPERM; + /* require the new mount api */ + if (exclusive && fc->ops == &legacy_fs_context_ops) + return -EOPNOTSUPP; + fc->phase = FS_CONTEXT_CREATING; + fc->exclusive = exclusive; ret = vfs_get_tree(fc); if (ret) { @@ -284,7 +289,9 @@ static int vfs_fsconfig_locked(struct fs_context *fc, int cmd, return ret; switch (cmd) { case FSCONFIG_CMD_CREATE: - return vfs_cmd_create(fc); + return vfs_cmd_create(fc, false); + case FSCONFIG_CMD_CREATE_EXCL: + return vfs_cmd_create(fc, true); case FSCONFIG_CMD_RECONFIGURE: return vfs_cmd_reconfigure(fc); default: @@ -381,6 +388,7 @@ SYSCALL_DEFINE5(fsconfig, return -EINVAL; break; case FSCONFIG_CMD_CREATE: + case FSCONFIG_CMD_CREATE_EXCL: case FSCONFIG_CMD_RECONFIGURE: if (_key || _value || aux) return -EINVAL; |