Get rid of mnt_mountpoint abuses in ext4
authorAl Viro <viro@zeniv.linux.org.uk>
Sun, 24 Jan 2010 01:10:29 +0000 (20:10 -0500)
committerAl Viro <viro@zeniv.linux.org.uk>
Wed, 3 Mar 2010 19:07:54 +0000 (14:07 -0500)
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>

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