nfsd4: check for negative dentry before use in nfsv4 readdir

[safe/jmp/linux-2.6] / fs / nfs / symlink.c

diff --git a/fs/nfs/symlink.c b/fs/nfs/symlink.c
index 525c136..412738d 100644 (file)
--- a/fs/nfs/symlink.c
+++ b/fs/nfs/symlink.c
@@ -10,7 +10,6 @@
  *  nfs symlink handling code
  */
 
-#define NFS_NEED_XDR_TYPES
 #include <linux/time.h>
 #include <linux/errno.h>
 #include <linux/sunrpc/clnt.h>
@@ -22,7 +21,6 @@
 #include <linux/mm.h>
 #include <linux/slab.h>
 #include <linux/string.h>
-#include <linux/smp_lock.h>
 #include <linux/namei.h>
 
 /* Symlink caching in the page cache is even more simplistic
@@ -61,15 +59,9 @@ static void *nfs_follow_link(struct dentry *dentry, struct nameidata *nd)
                err = page;
                goto read_failed;
        }
-       if (!PageUptodate(page)) {
-               err = ERR_PTR(-EIO);
-               goto getlink_read_error;
-       }
        nd_set_link(nd, kmap(page));
        return page;
 
-getlink_read_error:
-       page_cache_release(page);
 read_failed:
        nd_set_link(nd, err);
        return NULL;
@@ -78,7 +70,7 @@ read_failed:
 /*
  * symlinks can't do much...
  */
-struct inode_operations nfs_symlink_inode_operations = {
+const struct inode_operations nfs_symlink_inode_operations = {
        .readlink       = generic_readlink,
        .follow_link    = nfs_follow_link,
        .put_link       = page_put_link,