tree 7439690ff7654285fd1f50a0e6e44705ae8cabed
parent 9ea459e110df32e60a762f311f7939eaa879601d
author Eric W. Biederman <ebiederm@xmission.com> 1392250086 -0800
committer Al Viro <viro@zeniv.linux.org.uk> 1412836733 -0400

vfs: Document the effect of d_revalidate on d_find_alias

d_drop or check_submounts_and_drop called from d_revalidate can result
in renamed directories with child dentries being unhashed.  These
renamed and drop directory dentries can be rehashed after
d_materialise_unique uses d_find_alias to find them.

Reviewed-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>