[PATCH 05/18] ext4: new export ops

[PATCH 05/18] ext4: new export ops

[Christoph Hellwig]

[-- Attachment #1: ext4-implement-fh_to_dentry --]
[-- Type: text/plain, Size: 2196 bytes --]

Trivial switch over to the new generic helpers.


Signed-off-by: Christoph Hellwig <hch@lst.de>

Index: linux-2.6/fs/ext4/super.c
===================================================================
--- linux-2.6.orig/fs/ext4/super.c	2007-09-13 15:10:46.000000000 +0200
+++ linux-2.6/fs/ext4/super.c	2007-09-13 15:18:21.000000000 +0200
@@ -613,13 +613,10 @@ static int ext4_show_options(struct seq_
 }
 
 
-static struct dentry *ext4_get_dentry(struct super_block *sb, void *vobjp)
+static struct inode *ext4_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 < EXT4_FIRST_INO(sb) && ino != EXT4_ROOT_INO)
 		return ERR_PTR(-ESTALE);
@@ -642,15 +639,22 @@ static struct dentry *ext4_get_dentry(st
 		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 *ext4_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,
+				    ext4_nfs_get_inode);
+}
+
+static struct dentry *ext4_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,
+				    ext4_nfs_get_inode);
 }
 
 #ifdef CONFIG_QUOTA
@@ -720,8 +724,9 @@ static const struct super_operations ext
 };
 
 static struct export_operations ext4_export_ops = {
+	.fh_to_dentry = ext4_fh_to_dentry,
+	.fh_to_parent = ext4_fh_to_parent,
 	.get_parent = ext4_get_parent,
-	.get_dentry = ext4_get_dentry,
 };
 
 enum {

--

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