linux-kernel - [PATCH 13/13] vfs: dcache: Export d

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Message-Id: <1400838223-30844-14-git-send-email-miklos@szeredi.hu>
Date:	Fri, 23 May 2014 11:43:43 +0200
From:	Miklos Szeredi <miklos@...redi.hu>
To:	viro@...IV.linux.org.uk, torvalds@...ux-foundation.org
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	hch@...radead.org, akpm@...ux-foundation.org, apw@...onical.com,
	nbd@...nwrt.org, neilb@...e.de, jordipujolp@...il.com,
	ezk@....cs.sunysb.edu, dhowells@...hat.com, sedat.dilek@...il.com,
	hooanon05@...oo.co.jp, mszeredi@...e.cz
Subject: [PATCH 13/13] vfs: dcache: Export d_ancestor to modules

From: Sedat Dilek <sedat.dilek@...il.com>

With OverlayFS v22 I get the following build error when
CONFIG_OVERLAYFS_FS=m

ERROR: "d_ancestor" [fs/overlayfs/overlayfs.ko] undefined!

Fix this by adding the missing export.

Signed-off-by: Miklos Szeredi <mszeredi@...e.cz>
---
 fs/dcache.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/dcache.c b/fs/dcache.c
index 42ae01eefc07..b233bfc849de 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -2559,6 +2559,7 @@ struct dentry *d_ancestor(struct dentry *p1, struct dentry *p2)
 	}
 	return NULL;
 }
+EXPORT_SYMBOL(d_ancestor);
 
 /*
  * This helper attempts to cope with remotely renamed directories
-- 
1.8.1.4

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