Merge upstream into 'upstream' branch of netdev-2.6.git.

Hand fix merge conflict in drivers/net/tokenring/Kconfig.

23 files changed, 92 insertions, 105 deletions

diff --git a/fs/afs/mntpt.c b/fs/afs/mntpt.c
index bfc28abe1cb..31ee06590de 100644
--- a/fs/afs/mntpt.c
+++ b/fs/afs/mntpt.c
@@ -30,7 +30,7 @@ static struct dentry *afs_mntpt_lookup(struct inode *dir,
 				       struct dentry *dentry,
 				       struct nameidata *nd);
 static int afs_mntpt_open(struct inode *inode, struct file *file);
-static int afs_mntpt_follow_link(struct dentry *dentry, struct nameidata *nd);
+static void *afs_mntpt_follow_link(struct dentry *dentry, struct nameidata *nd);
 
 struct file_operations afs_mntpt_file_operations = {
 	.open		= afs_mntpt_open,
@@ -233,7 +233,7 @@ static struct vfsmount *afs_mntpt_do_automount(struct dentry *mntpt)
 /*
  * follow a link from a mountpoint directory, thus causing it to be mounted
  */
-static int afs_mntpt_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *afs_mntpt_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
 	struct vfsmount *newmnt;
 	struct dentry *old_dentry;
@@ -249,7 +249,7 @@ static int afs_mntpt_follow_link(struct dentry *dentry, struct nameidata *nd)
 	newmnt = afs_mntpt_do_automount(dentry);
 	if (IS_ERR(newmnt)) {
 		path_release(nd);
-		return PTR_ERR(newmnt);
+		return (void *)newmnt;
 	}
 
 	old_dentry = nd->dentry;
@@ -267,7 +267,7 @@ static int afs_mntpt_follow_link(struct dentry *dentry, struct nameidata *nd)
 	}
 
 	kleave(" = %d", err);
-	return err;
+	return ERR_PTR(err);
 } /* end afs_mntpt_follow_link() */
 
 /*****************************************************************************/
diff --git a/fs/autofs/symlink.c b/fs/autofs/symlink.c
index f028396f138..52e8772b066 100644
--- a/fs/autofs/symlink.c
+++ b/fs/autofs/symlink.c
@@ -12,11 +12,12 @@
 
 #include "autofs_i.h"
 
-static int autofs_follow_link(struct dentry *dentry, struct nameidata *nd)
+/* Nothing to release.. */
+static void *autofs_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
 	char *s=((struct autofs_symlink *)dentry->d_inode->u.generic_ip)->data;
 	nd_set_link(nd, s);
-	return 0;
+	return NULL;
 }
 
 struct inode_operations autofs_symlink_inode_operations = {
diff --git a/fs/autofs4/symlink.c b/fs/autofs4/symlink.c
index c265a66edf0..2ea2c98fd84 100644
--- a/fs/autofs4/symlink.c
+++ b/fs/autofs4/symlink.c
@@ -12,11 +12,11 @@
 
 #include "autofs_i.h"
 
-static int autofs4_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *autofs4_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
 	struct autofs_info *ino = autofs4_dentry_ino(dentry);
 	nd_set_link(nd, (char *)ino->u.symlink);
-	return 0;
+	return NULL;
 }
 
 struct inode_operations autofs4_symlink_inode_operations = {
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index de5bb280a82..e0a6025f1d0 100644
--- a/fs/befs/linuxvfs.c
+++ b/fs/befs/linuxvfs.c
@@ -41,8 +41,8 @@ static struct inode *befs_alloc_inode(struct super_block *sb);
 static void befs_destroy_inode(struct inode *inode);
 static int befs_init_inodecache(void);
 static void befs_destroy_inodecache(void);
-static int befs_follow_link(struct dentry *, struct nameidata *);
-static void befs_put_link(struct dentry *, struct nameidata *);
+static void *befs_follow_link(struct dentry *, struct nameidata *);
+static void befs_put_link(struct dentry *, struct nameidata *, void *);
 static int befs_utf2nls(struct super_block *sb, const char *in, int in_len,
 			char **out, int *out_len);
 static int befs_nls2utf(struct super_block *sb, const char *in, int in_len,
@@ -461,7 +461,7 @@ befs_destroy_inodecache(void)
  * The data stream become link name. Unless the LONG_SYMLINK
  * flag is set.
  */
-static int
+static void *
 befs_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
 	befs_inode_info *befs_ino = BEFS_I(dentry->d_inode);
@@ -487,10 +487,10 @@ befs_follow_link(struct dentry *dentry, struct nameidata *nd)
 	}
 
 	nd_set_link(nd, link);
-	return 0;
+	return NULL;
 }
 
-static void befs_put_link(struct dentry *dentry, struct nameidata *nd)
+static void befs_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
 {
 	befs_inode_info *befs_ino = BEFS_I(dentry->d_inode);
 	if (befs_ino->i_flags & BEFS_LONG_SYMLINK) {
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index 78af5850c55..1fd21f66f24 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -83,8 +83,8 @@ extern int cifs_dir_notify(struct file *, unsigned long arg);
 extern struct dentry_operations cifs_dentry_ops;
 
 /* Functions related to symlinks */
-extern int cifs_follow_link(struct dentry *direntry, struct nameidata *nd);
-extern void cifs_put_link(struct dentry *direntry, struct nameidata *nd);
+extern void *cifs_follow_link(struct dentry *direntry, struct nameidata *nd);
+extern void cifs_put_link(struct dentry *direntry, struct nameidata *nd, void *);
 extern int cifs_readlink(struct dentry *direntry, char __user *buffer, 
 			 int buflen);
 extern int cifs_symlink(struct inode *inode, struct dentry *direntry,
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index bde0fabfece..ab925ef4f86 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -92,7 +92,7 @@ cifs_hl_exit:
 	return rc;
 }
 
-int
+void *
 cifs_follow_link(struct dentry *direntry, struct nameidata *nd)
 {
 	struct inode *inode = direntry->d_inode;
@@ -148,7 +148,7 @@ out:
 out_no_free:
 	FreeXid(xid);
 	nd_set_link(nd, target_path);
-	return 0;
+	return NULL;	/* No cookie */
 }
 
 int
@@ -330,7 +330,7 @@ cifs_readlink(struct dentry *direntry, char __user *pBuffer, int buflen)
 	return rc;
 }
 
-void cifs_put_link(struct dentry *direntry, struct nameidata *nd)
+void cifs_put_link(struct dentry *direntry, struct nameidata *nd, void *cookie)
 {
 	char *p = nd_get_link(nd);
 	if (!IS_ERR(p))
diff --git a/fs/devfs/base.c b/fs/devfs/base.c
index 1ecfe1f184d..8b679b67e5e 100644
--- a/fs/devfs/base.c
+++ b/fs/devfs/base.c
@@ -2491,11 +2491,11 @@ static int devfs_mknod(struct inode *dir, struct dentry *dentry, int mode,
 	return 0;
 }				/*  End Function devfs_mknod  */
 
-static int devfs_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *devfs_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
 	struct devfs_entry *p = get_devfs_entry_from_vfs_inode(dentry->d_inode);
 	nd_set_link(nd, p ? p->u.symlink.linkname : ERR_PTR(-ENODEV));
-	return 0;
+	return NULL;
 }				/*  End Function devfs_follow_link  */
 
 static struct inode_operations devfs_iops = {
diff --git a/fs/ext2/symlink.c b/fs/ext2/symlink.c
index 9f7bac01d55..1e67d87cfa9 100644
--- a/fs/ext2/symlink.c
+++ b/fs/ext2/symlink.c
@@ -21,11 +21,11 @@
 #include "xattr.h"
 #include <linux/namei.h>
 
-static int ext2_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *ext2_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
 	struct ext2_inode_info *ei = EXT2_I(dentry->d_inode);
 	nd_set_link(nd, (char *)ei->i_data);
-	return 0;
+	return NULL;
 }
 
 struct inode_operations ext2_symlink_inode_operations = {
diff --git a/fs/ext3/symlink.c b/fs/ext3/symlink.c
index 8c3e72818fb..4f79122cde6 100644
--- a/fs/ext3/symlink.c
+++ b/fs/ext3/symlink.c
@@ -23,11 +23,11 @@
 #include <linux/namei.h>
 #include "xattr.h"
 
-static int ext3_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void * ext3_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
 	struct ext3_inode_info *ei = EXT3_I(dentry->d_inode);
 	nd_set_link(nd, (char*)ei->i_data);
-	return 0;
+	return NULL;
 }
 
 struct inode_operations ext3_symlink_inode_operations = {
diff --git a/fs/freevxfs/vxfs_immed.c b/fs/freevxfs/vxfs_immed.c
index ac677ab262b..d0401dc68d4 100644
--- a/fs/freevxfs/vxfs_immed.c
+++ b/fs/freevxfs/vxfs_immed.c
@@ -38,7 +38,7 @@
 #include "vxfs_inode.h"
 
 
-static int	vxfs_immed_follow_link(struct dentry *, struct nameidata *);
+static void *	vxfs_immed_follow_link(struct dentry *, struct nameidata *);
 
 static int	vxfs_immed_readpage(struct file *, struct page *);
 
@@ -72,12 +72,12 @@ struct address_space_operations vxfs_immed_aops = {
  * Returns:
  *   Zero on success, else a negative error code.
  */
-static int
+static void *
 vxfs_immed_follow_link(struct dentry *dp, struct nameidata *np)
 {
 	struct vxfs_inode_info		*vip = VXFS_INO(dp->d_inode);
 	nd_set_link(np, vip->vii_immed.vi_immed);
-	return 0;
+	return NULL;
 }
 
 /**
diff --git a/fs/ioprio.c b/fs/ioprio.c
index 97e1f088ba0..d1c1f2b2c9d 100644
--- a/fs/ioprio.c
+++ b/fs/ioprio.c
@@ -62,6 +62,8 @@ asmlinkage long sys_ioprio_set(int which, int who, int ioprio)
 
 			break;
 		case IOPRIO_CLASS_IDLE:
+			if (!capable(CAP_SYS_ADMIN))
+				return -EPERM;
 			break;
 		default:
 			return -EINVAL;
diff --git a/fs/jffs2/symlink.c b/fs/jffs2/symlink.c
index 65ab6b001dc..82ef484f5e1 100644
--- a/fs/jffs2/symlink.c
+++ b/fs/jffs2/symlink.c
@@ -18,7 +18,7 @@
 #include <linux/namei.h>
 #include "nodelist.h"
 
-static int jffs2_follow_link(struct dentry *dentry, struct nameidata *nd);
+static void *jffs2_follow_link(struct dentry *dentry, struct nameidata *nd);
 
 struct inode_operations jffs2_symlink_inode_operations =
 {	
@@ -27,9 +27,10 @@ struct inode_operations jffs2_symlink_inode_operations =
 	.setattr =	jffs2_setattr
 };
 
-static int jffs2_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *jffs2_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
 	struct jffs2_inode_info *f = JFFS2_INODE_INFO(dentry->d_inode);
+	char *p = (char *)f->dents;
 	
 	/*
 	 * We don't acquire the f->sem mutex here since the only data we
@@ -45,19 +46,20 @@ static int jffs2_follow_link(struct dentry *dentry, struct nameidata *nd)
 	 * nd_set_link() call.
 	 */
 	
-	if (!f->dents) {
+	if (!p) {
 		printk(KERN_ERR "jffs2_follow_link(): can't find symlink taerget\n");
-		return -EIO;
+		p = ERR_PTR(-EIO);
+	} else {
+		D1(printk(KERN_DEBUG "jffs2_follow_link(): target path is '%s'\n", (char *) f->dents));
 	}
-	D1(printk(KERN_DEBUG "jffs2_follow_link(): target path is '%s'\n", (char *) f->dents));
 
-	nd_set_link(nd, (char *)f->dents);
+	nd_set_link(nd, p);
 	
 	/*
 	 * We unlock the f->sem mutex but VFS will use the f->dents string. This is safe
 	 * since the only way that may cause f->dents to be changed is iput() operation.
 	 * But VFS will not use f->dents after iput() has been called.
 	 */
-	return 0;
+	return NULL;
 }
 
diff --git a/fs/jfs/symlink.c b/fs/jfs/symlink.c
index 287d8d6c3cf..16477b3835e 100644
--- a/fs/jfs/symlink.c
+++ b/fs/jfs/symlink.c
@@ -22,11 +22,11 @@
 #include "jfs_inode.h"
 #include "jfs_xattr.h"
 
-static int jfs_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *jfs_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
 	char *s = JFS_IP(dentry->d_inode)->i_inline;
 	nd_set_link(nd, s);
-	return 0;
+	return NULL;
 }
 
 struct inode_operations jfs_symlink_inode_operations = {
diff --git a/fs/namei.c b/fs/namei.c
index b85f158aef0..6ec1f0fefc5 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -501,6 +501,7 @@ struct path {
 static inline int __do_follow_link(struct path *path, struct nameidata *nd)
 {
 	int error;
+	void *cookie;
 	struct dentry *dentry = path->dentry;
 
 	touch_atime(path->mnt, dentry);
@@ -508,13 +509,15 @@ static inline int __do_follow_link(struct path *path, struct nameidata *nd)
 
 	if (path->mnt == nd->mnt)
 		mntget(path->mnt);
-	error = dentry->d_inode->i_op->follow_link(dentry, nd);
-	if (!error) {
+	cookie = dentry->d_inode->i_op->follow_link(dentry, nd);
+	error = PTR_ERR(cookie);
+	if (!IS_ERR(cookie)) {
 		char *s = nd_get_link(nd);
+		error = 0;
 		if (s)
 			error = __vfs_follow_link(nd, s);
 		if (dentry->d_inode->i_op->put_link)
-			dentry->d_inode->i_op->put_link(dentry, nd);
+			dentry->d_inode->i_op->put_link(dentry, nd, cookie);
 	}
 	dput(dentry);
 	mntput(path->mnt);
@@ -2344,15 +2347,17 @@ out:
 int generic_readlink(struct dentry *dentry, char __user *buffer, int buflen)
 {
 	struct nameidata nd;
-	int res;
+	void *cookie;
+
 	nd.depth = 0;
-	res = dentry->d_inode->i_op->follow_link(dentry, &nd);
-	if (!res) {
-		res = vfs_readlink(dentry, buffer, buflen, nd_get_link(&nd));
+	cookie = dentry->d_inode->i_op->follow_link(dentry, &nd);
+	if (!IS_ERR(cookie)) {
+		int res = vfs_readlink(dentry, buffer, buflen, nd_get_link(&nd));
 		if (dentry->d_inode->i_op->put_link)
-			dentry->d_inode->i_op->put_link(dentry, &nd);
+			dentry->d_inode->i_op->put_link(dentry, &nd, cookie);
+		cookie = ERR_PTR(res);
 	}
-	return res;
+	return PTR_ERR(cookie);
 }
 
 int vfs_follow_link(struct nameidata *nd, const char *link)
@@ -2395,23 +2400,20 @@ int page_readlink(struct dentry *dentry, char __user *buffer, int buflen)
 	return res;
 }
 
-int page_follow_link_light(struct dentry *dentry, struct nameidata *nd)
+void *page_follow_link_light(struct dentry *dentry, struct nameidata *nd)
 {
-	struct page *page;
+	struct page *page = NULL;
 	nd_set_link(nd, page_getlink(dentry, &page));
-	return 0;
+	return page;
 }
 
-void page_put_link(struct dentry *dentry, struct nameidata *nd)
+void page_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie)
 {
-	if (!IS_ERR(nd_get_link(nd))) {
-		struct page *page;
-		page = find_get_page(dentry->d_inode->i_mapping, 0);
-		if (!page)
-			BUG();
+	struct page *page = cookie;
+
+	if (page) {
 		kunmap(page);
 		page_cache_release(page);
-		page_cache_release(page);
 	}
 }
 
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 147cbf9261c..2df639f143e 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -939,6 +939,7 @@ static struct dentry *nfs_atomic_lookup(struct inode *dir, struct dentry *dentry
 	error = nfs_revalidate_inode(NFS_SERVER(dir), dir);
 	if (error < 0) {
 		res = ERR_PTR(error);
+		unlock_kernel();
 		goto out;
 	}
 
diff --git a/fs/nfs/symlink.c b/fs/nfs/symlink.c
index 35f10659914..18dc95b0b64 100644
--- a/fs/nfs/symlink.c
+++ b/fs/nfs/symlink.c
@@ -27,26 +27,14 @@
 
 /* Symlink caching in the page cache is even more simplistic
  * and straight-forward than readdir caching.
- *
- * At the beginning of the page we store pointer to struct page in question,
- * simplifying nfs_put_link() (if inode got invalidated we can't find the page
- * to be freed via pagecache lookup).
- * The NUL-terminated string follows immediately thereafter.
  */
 
-struct nfs_symlink {
-	struct page *page;
-	char body[0];
-};
-
 static int nfs_symlink_filler(struct inode *inode, struct page *page)
 {
-	const unsigned int pgbase = offsetof(struct nfs_symlink, body);
-	const unsigned int pglen = PAGE_SIZE - pgbase;
 	int error;
 
 	lock_kernel();
-	error = NFS_PROTO(inode)->readlink(inode, page, pgbase, pglen);
+	error = NFS_PROTO(inode)->readlink(inode, page, 0, PAGE_SIZE);
 	unlock_kernel();
 	if (error < 0)
 		goto error;
@@ -60,11 +48,10 @@ error:
 	return -EIO;
 }
 
-static int nfs_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *nfs_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
 	struct inode *inode = dentry->d_inode;
 	struct page *page;
-	struct nfs_symlink *p;
 	void *err = ERR_PTR(nfs_revalidate_inode(NFS_SERVER(inode), inode));
 	if (err)
 		goto read_failed;
@@ -78,28 +65,20 @@ static int nfs_follow_link(struct dentry *dentry, struct nameidata *nd)
 		err = ERR_PTR(-EIO);
 		goto getlink_read_error;
 	}
-	p = kmap(page);
-	p->page = page;
-	nd_set_link(nd, p->body);
-	return 0;
+	nd_set_link(nd, kmap(page));
+	return page;
 
 getlink_read_error:
 	page_cache_release(page);
 read_failed:
 	nd_set_link(nd, err);
-	return 0;
+	return NULL;
 }
 
-static void nfs_put_link(struct dentry *dentry, struct nameidata *nd)
+static void nfs_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie)
 {
-	char *s = nd_get_link(nd);
-	if (!IS_ERR(s)) {
-		struct nfs_symlink *p;
-		struct page *page;
-
-		p = container_of(s, struct nfs_symlink, body[0]);
-		page = p->page;
-
+	if (cookie) {
+		struct page *page = cookie;
 		kunmap(page);
 		page_cache_release(page);
 	}
diff --git a/fs/proc/base.c b/fs/proc/base.c
index ace151fa487..491f2d9f89a 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -890,7 +890,7 @@ static struct file_operations proc_seccomp_operations = {
 };
 #endif /* CONFIG_SECCOMP */
 
-static int proc_pid_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *proc_pid_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
 	struct inode *inode = dentry->d_inode;
 	int error = -EACCES;
@@ -907,7 +907,7 @@ static int proc_pid_follow_link(struct dentry *dentry, struct nameidata *nd)
 	error = PROC_I(inode)->op.proc_get_link(inode, &nd->dentry, &nd->mnt);
 	nd->last_type = LAST_BIND;
 out:
-	return error;
+	return ERR_PTR(error);
 }
 
 static int do_proc_readlink(struct dentry *dentry, struct vfsmount *mnt,
@@ -1692,11 +1692,11 @@ static int proc_self_readlink(struct dentry *dentry, char __user *buffer,
 	return vfs_readlink(dentry,buffer,buflen,tmp);
 }
 
-static int proc_self_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *proc_self_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
 	char tmp[30];
 	sprintf(tmp, "%d", current->tgid);
-	return vfs_follow_link(nd,tmp);
+	return ERR_PTR(vfs_follow_link(nd,tmp));
 }	
 
 static struct inode_operations proc_self_inode_operations = {
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index 6c6315d0402..abe8920313f 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -329,10 +329,10 @@ static void release_inode_number(unsigned int inum)
 	spin_unlock(&proc_inum_lock);
 }
 
-static int proc_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *proc_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
 	nd_set_link(nd, PDE(dentry->d_inode)->data);
-	return 0;
+	return NULL;
 }
 
 static struct inode_operations proc_link_inode_operations = {
diff --git a/fs/smbfs/symlink.c b/fs/smbfs/symlink.c
index 8b069e06433..0c64bc3a012 100644
--- a/fs/smbfs/symlink.c
+++ b/fs/smbfs/symlink.c
@@ -34,7 +34,7 @@ int smb_symlink(struct inode *inode, struct dentry *dentry, const char *oldname)
 	return smb_proc_symlink(server_from_dentry(dentry), dentry, oldname);
 }
 
-static int smb_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *smb_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
 	char *link = __getname();
 	DEBUG1("followlink of %s/%s\n", DENTRY_PATH(dentry));
@@ -52,10 +52,10 @@ static int smb_follow_link(struct dentry *dentry, struct nameidata *nd)
 		}
 	}
 	nd_set_link(nd, link);
-	return 0;
+	return NULL;
 }
 
-static void smb_put_link(struct dentry *dentry, struct nameidata *nd)
+static void smb_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
 {
 	char *s = nd_get_link(nd);
 	if (!IS_ERR(s))
diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
index fae57c83a72..de402fa915f 100644
--- a/fs/sysfs/symlink.c
+++ b/fs/sysfs/symlink.c
@@ -151,17 +151,17 @@ static int sysfs_getlink(struct dentry *dentry, char * path)
 
 }
 
-static int sysfs_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *sysfs_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
 	int error = -ENOMEM;
 	unsigned long page = get_zeroed_page(GFP_KERNEL);
 	if (page)
 		error = sysfs_getlink(dentry, (char *) page); 
 	nd_set_link(nd, error ? ERR_PTR(error) : (char *)page);
-	return 0;
+	return NULL;
 }
 
-static void sysfs_put_link(struct dentry *dentry, struct nameidata *nd)
+static void sysfs_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie)
 {
 	char *page = nd_get_link(nd);
 	if (!IS_ERR(page))
diff --git a/fs/sysv/symlink.c b/fs/sysv/symlink.c
index ed637db2dcb..b85ce61d635 100644
--- a/fs/sysv/symlink.c
+++ b/fs/sysv/symlink.c
@@ -8,10 +8,10 @@
 #include "sysv.h"
 #include <linux/namei.h>
 
-static int sysv_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *sysv_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
 	nd_set_link(nd, (char *)SYSV_I(dentry->d_inode)->i_data);
-	return 0;
+	return NULL;
 }
 
 struct inode_operations sysv_fast_symlink_inode_operations = {
diff --git a/fs/ufs/symlink.c b/fs/ufs/symlink.c
index a0e49149098..337512ed578 100644
--- a/fs/ufs/symlink.c
+++ b/fs/ufs/symlink.c
@@ -29,11 +29,11 @@
 #include <linux/namei.h>
 #include <linux/ufs_fs.h>
 
-static int ufs_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *ufs_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
 	struct ufs_inode_info *p = UFS_I(dentry->d_inode);
 	nd_set_link(nd, (char*)p->i_u1.i_symlink);
-	return 0;
+	return NULL;
 }
 
 struct inode_operations ufs_fast_symlink_inode_operations = {
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c
index 407e9935939..f252605514e 100644
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -374,7 +374,7 @@ linvfs_rename(
  * we need to be very careful about how much stack we use.
  * uio is kmalloced for this reason...
  */
-STATIC int
+STATIC void *
 linvfs_follow_link(
 	struct dentry		*dentry,
 	struct nameidata	*nd)
@@ -391,14 +391,14 @@ linvfs_follow_link(
 	link = (char *)kmalloc(MAXNAMELEN+1, GFP_KERNEL);
 	if (!link) {
 		nd_set_link(nd, ERR_PTR(-ENOMEM));
-		return 0;
+		return NULL;
 	}
 
 	uio = (uio_t *)kmalloc(sizeof(uio_t), GFP_KERNEL);
 	if (!uio) {
 		kfree(link);
 		nd_set_link(nd, ERR_PTR(-ENOMEM));
-		return 0;
+		return NULL;
 	}
 
 	vp = LINVFS_GET_VP(dentry->d_inode);
@@ -422,10 +422,10 @@ linvfs_follow_link(
 	kfree(uio);
 
 	nd_set_link(nd, link);
-	return 0;
+	return NULL;
 }
 
-static void linvfs_put_link(struct dentry *dentry, struct nameidata *nd)
+static void linvfs_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
 {
 	char *s = nd_get_link(nd);
 	if (!IS_ERR(s))