tree e9f269431a6ed4ec7a70de68cd9b62b0bcbe2dea
parent e7f7d2253c05143ed76ddc5e11f4cf0a9b814a27
author David Howells <dhowells@redhat.com> 1422532948 +0000
committer Al Viro <viro@zeniv.linux.org.uk> 1424623118 -0500

VFS: Add a fallthrough flag for marking virtual dentries

Add a DCACHE_FALLTHRU flag to indicate that, in a layered filesystem, this is
a virtual dentry that covers another one in a lower layer that should be used
instead.  This may be recorded on medium if directory integration is stored
there.

The flag can be set with d_set_fallthru() and tested with d_is_fallthru().

Original-author: Valerie Aurora <vaurora@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>