Get rid of mnt_mountpoint abuses in ext4

path to mnt/mnt->mnt_root is no worse than that to
mnt->mnt_parent/mnt->mnt_mountpoint *and* needs no
pinning the sucker down (mnt is not going away and
mnt->mnt_root won't change)

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2010-01-23 20:10:29 -05:00
parent f598f9f125
commit 3899167dbd

View File

@ -116,11 +116,9 @@ static int ext4_file_open(struct inode * inode, struct file * filp)
* devices or filesystem images.
*/
memset(buf, 0, sizeof(buf));
path.mnt = mnt->mnt_parent;
path.dentry = mnt->mnt_mountpoint;
path_get(&path);
path.mnt = mnt;
path.dentry = mnt->mnt_root;
cp = d_path(&path, buf, sizeof(buf));
path_put(&path);
if (!IS_ERR(cp)) {
memcpy(sbi->s_es->s_last_mounted, cp,
sizeof(sbi->s_es->s_last_mounted));