diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2008-07-22 09:59:21 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2008-07-26 20:53:34 -0400 |
| commit | 2d8f30380ab8c706f4e0a8f1aaa22b5886e9ac8a (patch) | |
| tree | b798097fd831eab39f35c8c2e5a8ccfd7a850ef5 /fs/xfs/linux-2.6/xfs_ioctl.c | |
| parent | 256984a83880ff7ac78055cb87baea48137f0b77 (diff) | |
[PATCH] sanitize __user_walk_fd() et.al.
* do not pass nameidata; struct path is all the callers want.
* switch to new helpers:
user_path_at(dfd, pathname, flags, &path)
user_path(pathname, &path)
user_lpath(pathname, &path)
user_path_dir(pathname, &path) (fail if not a directory)
The last 3 are trivial macro wrappers for the first one.
* remove nameidata in callers.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/xfs/linux-2.6/xfs_ioctl.c')
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_ioctl.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c index a42ba9d7115..01939ba2d8d 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl.c +++ b/fs/xfs/linux-2.6/xfs_ioctl.c @@ -84,17 +84,15 @@ xfs_find_handle( switch (cmd) { case XFS_IOC_PATH_TO_FSHANDLE: case XFS_IOC_PATH_TO_HANDLE: { - struct nameidata nd; - int error; - - error = user_path_walk_link((const char __user *)hreq.path, &nd); + struct path path; + int error = user_lpath((const char __user *)hreq.path, &path); if (error) return error; - ASSERT(nd.path.dentry); - ASSERT(nd.path.dentry->d_inode); - inode = igrab(nd.path.dentry->d_inode); - path_put(&nd.path); + ASSERT(path.dentry); + ASSERT(path.dentry->d_inode); + inode = igrab(path.dentry->d_inode); + path_put(&path); break; } |