diff options
| author |   David Howells <dhowells@redhat.com> | 2012-06-25 12:55:09 +0100 |
|---|---|---|
| committer |   Al Viro <viro@zeniv.linux.org.uk> | 2012-07-14 16:35:54 +0400 |
| commit | 55e4def0a6e79e7eb53017c4935adfed76510cd7 (patch) | |
| tree | e970472b64e95f32933ad49cb36d0ae814595e54 /fs/open.c | |
| parent | do_dentry_open(): close the race with mark_files_ro() in failure exit (diff) | |
| download | linux-dev-55e4def0a6e79e7eb53017c4935adfed76510cd7.tar.xz linux-dev-55e4def0a6e79e7eb53017c4935adfed76510cd7.zip | |
VFS: Make chown() and lchown() call fchownat()
Make the chown() and lchown() syscalls jump to the fchownat() syscall with the
appropriate extra arguments.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/open.c')
| -rw-r--r-- | fs/open.c | 41 |
1 files changed, 7 insertions, 34 deletions
diff --git a/fs/open.c b/fs/open.c index 764cc9c201a5..75bea868ef8a 100644 --- a/fs/open.c +++ b/fs/open.c @@ -537,25 +537,6 @@ static int chown_common(struct path *path, uid_t user, gid_t group) return error; } -SYSCALL_DEFINE3(chown, const char __user *, filename, uid_t, user, gid_t, group) -{ - struct path path; - int error; - - error = user_path(filename, &path); - if (error) - goto out; - error = mnt_want_write(path.mnt); - if (error) - goto out_release; - error = chown_common(&path, user, group); - mnt_drop_write(path.mnt); -out_release: - path_put(&path); -out: - return error; -} - SYSCALL_DEFINE5(fchownat, int, dfd, const char __user *, filename, uid_t, user, gid_t, group, int, flag) { @@ -583,23 +564,15 @@ out: return error; } -SYSCALL_DEFINE3(lchown, const char __user *, filename, uid_t, user, gid_t, group) +SYSCALL_DEFINE3(chown, const char __user *, filename, uid_t, user, gid_t, group) { - struct path path; - int error; + return sys_fchownat(AT_FDCWD, filename, user, group, 0); +} - error = user_lpath(filename, &path); - if (error) - goto out; - error = mnt_want_write(path.mnt); - if (error) - goto out_release; - error = chown_common(&path, user, group); - mnt_drop_write(path.mnt); -out_release: - path_put(&path); -out: - return error; +SYSCALL_DEFINE3(lchown, const char __user *, filename, uid_t, user, gid_t, group) +{ + return sys_fchownat(AT_FDCWD, filename, user, group, + AT_SYMLINK_NOFOLLOW); } SYSCALL_DEFINE3(fchown, unsigned int, fd, uid_t, user, gid_t, group) |