ext2: new export ops

Trivial switch over to the new generic helpers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Neil Brown <neilb@suse.de>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 19 insertions, 15 deletions

diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index 77bd5f9262f9..4a03d0c84df2 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -311,13 +311,10 @@ static const struct super_operations ext2_sops = {
 #endif
 };
 
-static struct dentry *ext2_get_dentry(struct super_block *sb, void *vobjp)
+static struct inode *ext2_nfs_get_inode(struct super_block *sb,
+                u64 ino, u32 generation)
 {
-        __u32 *objp = vobjp;
-        unsigned long ino = objp[0];
-        __u32 generation = objp[1];
         struct inode *inode;
-        struct dentry *result;
 
         if (ino < EXT2_FIRST_INO(sb) && ino != EXT2_ROOT_INO)
                 return ERR_PTR(-ESTALE);
@@ -338,15 +335,21 @@ static struct dentry *ext2_get_dentry(struct super_block *sb, void *vobjp)
                 iput(inode);
                 return ERR_PTR(-ESTALE);
         }
-        /* now to find a dentry.
-         * If possible, get a well-connected one
-         */
-        result = d_alloc_anon(inode);
-        if (!result) {
-                iput(inode);
-                return ERR_PTR(-ENOMEM);
-        }
-        return result;
+        return inode;
+}
+
+static struct dentry *ext2_fh_to_dentry(struct super_block *sb, struct fid *fid,
+                int fh_len, int fh_type)
+{
+        return generic_fh_to_dentry(sb, fid, fh_len, fh_type,
+                                    ext2_nfs_get_inode);
+}
+
+static struct dentry *ext2_fh_to_parent(struct super_block *sb, struct fid *fid,
+                int fh_len, int fh_type)
+{
+        return generic_fh_to_parent(sb, fid, fh_len, fh_type,
+                                    ext2_nfs_get_inode);
 }
 
 /* Yes, most of these are left as NULL!!
@@ -355,8 +358,9 @@ static struct dentry *ext2_get_dentry(struct super_block *sb, void *vobjp)
  * Currently only get_parent is required.
  */
 static struct export_operations ext2_export_ops = {
+        .fh_to_dentry = ext2_fh_to_dentry,
+        .fh_to_parent = ext2_fh_to_parent,
         .get_parent = ext2_get_parent,
-        .get_dentry = ext2_get_dentry,
 };
 
 static unsigned long get_sb_block(void **data)