linux-kernel - [PATCH 03/13] Remove path_release_on

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Message-ID: <20071022065632.GD6489@in.ibm.com>
Date:	Mon, 22 Oct 2007 12:26:32 +0530
From:	Bharata B Rao <bharata@...ux.vnet.ibm.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Jan Blunck <jblunck@...e.de>, Andreas Gruenbacher <agruen@...e.de>,
	Christoph Hellwig <hch@....de>, viro@...iv.linux.org.uk,
	linux-kernel@...r.kernel.org
Subject: [PATCH 03/13] Remove path_release_on_umount()

From: Jan Blunck <jblunck@...e.de>

path_release_on_umount() should only be called from sys_umount(). I merged the
function into sys_umount() instead of having in in namei.c.

Signed-off-by: Jan Blunck <jblunck@...e.de>
Signed-off-by: Bharata B Rao <bharata@...ux.vnet.ibm.com>
Acked-by: Christoph Hellwig <hch@....de>
---
 fs/namei.c            |   10 ----------
 fs/namespace.c        |    4 +++-
 include/linux/namei.h |    1 -
 3 files changed, 3 insertions(+), 12 deletions(-)

--- a/fs/namei.c
+++ b/fs/namei.c
@@ -368,16 +368,6 @@ void path_release(struct nameidata *nd)
 	mntput(nd->mnt);
 }
 
-/*
- * umount() mustn't call path_release()/mntput() as that would clear
- * mnt_expiry_mark
- */
-void path_release_on_umount(struct nameidata *nd)
-{
-	dput(nd->dentry);
-	mntput_no_expire(nd->mnt);
-}
-
 /**
  * release_open_intent - free up open intent resources
  * @nd: pointer to nameidata
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -988,7 +988,9 @@ asmlinkage long sys_umount(char __user *
 
 	retval = do_umount(nd.mnt, flags);
 dput_and_out:
-	path_release_on_umount(&nd);
+	/* we mustn't call path_put() as that would clear mnt_expiry_mark */
+	dput(nd.dentry);
+	mntput_no_expire(nd.mnt);
 out:
 	return retval;
 }
--- a/include/linux/namei.h
+++ b/include/linux/namei.h
@@ -73,7 +73,6 @@ extern int FASTCALL(path_lookup(const ch
 extern int vfs_path_lookup(struct dentry *, struct vfsmount *,
 			   const char *, unsigned int, struct nameidata *);
 extern void path_release(struct nameidata *);
-extern void path_release_on_umount(struct nameidata *);
 
 extern int __user_path_lookup_open(const char __user *, unsigned lookup_flags, struct nameidata *nd, int open_flags);
 extern int path_lookup_open(int dfd, const char *name, unsigned lookup_flags, struct nameidata *, int open_flags);
-
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