From: Eric W. Biederman <ebiederm@xmission.com>
Date: Thu, 13 Feb 2014 18:19:10 +0000 (-0800)
Subject: vfs: Remove d_drop calls from d_revalidate implementations
X-Git-Tag: omap-for-v3.19/prcm-cleanup~102^2~45
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c143c2333c48f1430231b31a8c17e074b9b504eb;p=pandora-kernel.git

vfs: Remove d_drop calls from d_revalidate implementations

Now that d_invalidate always succeeds it is not longer necessary or
desirable to hard code d_drop calls into filesystem specific
d_revalidate implementations.

Remove the unnecessary d_drop calls and rely on d_invalidate
to drop the dentries.  Using d_invalidate ensures that paths
to mount points will not be dropped.

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>
---

diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index c29d6ae68874..b6c59eaa4f64 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -1069,7 +1069,6 @@ static int ceph_d_revalidate(struct dentry *dentry, unsigned int flags)
 		ceph_dentry_lru_touch(dentry);
 	} else {
 		ceph_dir_clear_complete(dir);
-		d_drop(dentry);
 	}
 	iput(dir);
 	return valid;
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