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authorJan Blunck <jblunck@suse.de>2008-02-14 19:34:32 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-14 21:13:33 -0800
commit4ac9137858e08a19f29feac4e1f4df7c268b0ba5 (patch)
treef5b5d84fd12fcc2b0ba0e7ce1a79ff381ad8f5dd /fs/cifs/cifs_dfs_ref.c
parentc5e725f33b733a77de622e91b6ba5645fcf070be (diff)
downloadlinux-4ac9137858e08a19f29feac4e1f4df7c268b0ba5.tar.bz2
Embed a struct path into struct nameidata instead of nd->{dentry,mnt}
This is the central patch of a cleanup series. In most cases there is no good reason why someone would want to use a dentry for itself. This series reflects that fact and embeds a struct path into nameidata. Together with the other patches of this series - it enforced the correct order of getting/releasing the reference count on <dentry,vfsmount> pairs - it prepares the VFS for stacking support since it is essential to have a struct path in every place where the stack can be traversed - it reduces the overall code size: without patch series: text data bss dec hex filename 5321639 858418 715768 6895825 6938d1 vmlinux with patch series: text data bss dec hex filename 5320026 858418 715768 6894212 693284 vmlinux This patch: Switch from nd->{dentry,mnt} to nd->path.{dentry,mnt} everywhere. [akpm@linux-foundation.org: coding-style fixes] [akpm@linux-foundation.org: fix cifs] [akpm@linux-foundation.org: fix smack] Signed-off-by: Jan Blunck <jblunck@suse.de> Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Acked-by: Christoph Hellwig <hch@lst.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Casey Schaufler <casey@schaufler-ca.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/cifs/cifs_dfs_ref.c')
-rw-r--r--fs/cifs/cifs_dfs_ref.c23
1 files changed, 12 insertions, 11 deletions
diff --git a/fs/cifs/cifs_dfs_ref.c b/fs/cifs/cifs_dfs_ref.c
index 413ee2349d1a..bcd53c2fe781 100644
--- a/fs/cifs/cifs_dfs_ref.c
+++ b/fs/cifs/cifs_dfs_ref.c
@@ -259,18 +259,18 @@ static int add_mount_helper(struct vfsmount *newmnt, struct nameidata *nd,
int err;
mntget(newmnt);
- err = do_add_mount(newmnt, nd, nd->mnt->mnt_flags, mntlist);
+ err = do_add_mount(newmnt, nd, nd->path.mnt->mnt_flags, mntlist);
switch (err) {
case 0:
- dput(nd->dentry);
- mntput(nd->mnt);
- nd->mnt = newmnt;
- nd->dentry = dget(newmnt->mnt_root);
+ dput(nd->path.dentry);
+ mntput(nd->path.mnt);
+ nd->path.mnt = newmnt;
+ nd->path.dentry = dget(newmnt->mnt_root);
break;
case -EBUSY:
/* someone else made a mount here whilst we were busy */
- while (d_mountpoint(nd->dentry) &&
- follow_down(&nd->mnt, &nd->dentry))
+ while (d_mountpoint(nd->path.dentry) &&
+ follow_down(&nd->path.mnt, &nd->path.dentry))
;
err = 0;
default:
@@ -307,8 +307,8 @@ cifs_dfs_follow_mountpoint(struct dentry *dentry, struct nameidata *nd)
xid = GetXid();
- dput(nd->dentry);
- nd->dentry = dget(dentry);
+ dput(nd->path.dentry);
+ nd->path.dentry = dget(dentry);
cifs_sb = CIFS_SB(dentry->d_inode->i_sb);
ses = cifs_sb->tcon->ses;
@@ -340,7 +340,8 @@ cifs_dfs_follow_mountpoint(struct dentry *dentry, struct nameidata *nd)
rc = -EINVAL;
goto out_err;
}
- mnt = cifs_dfs_do_refmount(nd->mnt, nd->dentry,
+ mnt = cifs_dfs_do_refmount(nd->path.mnt,
+ nd->path.dentry,
referrals[i].node_name);
cFYI(1, ("%s: cifs_dfs_do_refmount:%s , mnt:%p",
__FUNCTION__,
@@ -357,7 +358,7 @@ cifs_dfs_follow_mountpoint(struct dentry *dentry, struct nameidata *nd)
if (IS_ERR(mnt))
goto out_err;
- nd->mnt->mnt_flags |= MNT_SHRINKABLE;
+ nd->path.mnt->mnt_flags |= MNT_SHRINKABLE;
rc = add_mount_helper(mnt, nd, &cifs_dfs_automount_list);
out: