2007-09-27 14:09:57

by Jan Blunck

Subject: [patch 03/10] Remove path_release_on_umount()

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 <[email protected]>
---
fs/namei.c | 10 ----------
fs/namespace.c | 4 +++-
include/linux/namei.h | 1 -
3 files changed, 3 insertions(+), 12 deletions(-)

Index: b/fs/namei.c
===================================================================
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -353,16 +353,6 @@ 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
Index: b/fs/namespace.c
===================================================================
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -648,7 +648,9 @@ 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;
}
Index: b/include/linux/namei.h
===================================================================
--- a/include/linux/namei.h
+++ b/include/linux/namei.h
@@ -72,7 +72,6 @@ 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);

--

2007-09-28 18:34:32

by Christoph Hellwig

Subject: Re: [patch 03/10] Remove path_release_on_umount()

On Thu, Sep 27, 2007 at 04:12:03PM +0200, [email protected] wrote:
> 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.

Yeah, getting rid of this one makes a lot sense.