[patch 3/4] Introduce pathget

[Andreas Gruenbacher <agruen@suse.de>]

[-- Attachment #1: pathget.diff --]
[-- Type: text/plain, Size: 1390 bytes --]

This is the symmetric operation to pathput.

Signed-off-by: Jan Blunck <jblunck@suse.de>
Signed-off-by: Andreas Gruenbacher <agruen@suse.de>

---
 fs/namei.c            |    9 +++------
 include/linux/namei.h |    8 --------
 2 files changed, 3 insertions(+), 14 deletions(-)

--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1003,14 +1003,12 @@ static int fastcall link_path_walk(const
 	int result;
 
 	/* make sure the stuff we saved doesn't go away */
-	dget(save.lookup.path.dentry);
-	mntget(save.lookup.path.mnt);
+	pathget(&save.lookup.path);
 
 	result = __link_path_walk(name, nd);
 	if (result == -ESTALE) {
 		*nd = save;
-		dget(nd->lookup.path.dentry);
-		mntget(nd->lookup.path.mnt);
+		pathget(&nd->lookup.path);
 		nd->lookup.flags |= LOOKUP_REVAL;
 		result = __link_path_walk(name, nd);
 	}
@@ -1140,8 +1138,7 @@ static int fastcall do_path_lookup(int d
 		if (retval)
 			goto fput_fail;
 
-		mntget(nd->lookup.path.mnt);
-		dget(nd->lookup.path.dentry);
+		pathget(&nd->lookup.path);
 
 		fput_light(file, fput_needed);
 	}
--- a/include/linux/namei.h
+++ b/include/linux/namei.h
@@ -102,6 +102,14 @@ static inline char *nd_get_link(struct n
 	return nd->saved_names[nd->depth];
 }
 
+static inline struct path *pathget(struct path *path)
+{
+	mntget(path->mnt);
+	dget(path->dentry);
+
+	return path;
+}
+
 static inline void pathput(struct path *path)
 {
 	dput(path->dentry);