jfs: 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>
Cc: Dave Kleikamp <shaggy@austin.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

3 files changed, 27 insertions, 18 deletions

diff --git a/fs/jfs/jfs_inode.h b/fs/jfs/jfs_inode.h
index f0ec72b263f1..8e2cf2cde185 100644
--- a/fs/jfs/jfs_inode.h
+++ b/fs/jfs/jfs_inode.h
@@ -18,6 +18,8 @@
 #ifndef _H_JFS_INODE
 #define _H_JFS_INODE
 
+struct fid;
+
 extern struct inode *ialloc(struct inode *, umode_t);
 extern int jfs_fsync(struct file *, struct dentry *, int);
 extern int jfs_ioctl(struct inode *, struct file *,
@@ -32,7 +34,10 @@ extern void jfs_truncate_nolock(struct inode *, loff_t);
 extern void jfs_free_zero_link(struct inode *);
 extern struct dentry *jfs_get_parent(struct dentry *dentry);
 extern void jfs_get_inode_flags(struct jfs_inode_info *);
-extern struct dentry *jfs_get_dentry(struct super_block *sb, void *vobjp);
+extern struct dentry *jfs_fh_to_dentry(struct super_block *sb, struct fid *fid,
+        int fh_len, int fh_type);
+extern struct dentry *jfs_fh_to_parent(struct super_block *sb, struct fid *fid,
+        int fh_len, int fh_type);
 extern void jfs_set_inode_flags(struct inode *);
 extern int jfs_get_block(struct inode *, sector_t, struct buffer_head *, int);
 
diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index 932797ba433b..4e0a8493cef6 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -20,6 +20,7 @@
 #include <linux/fs.h>
 #include <linux/ctype.h>
 #include <linux/quotaops.h>
+#include <linux/exportfs.h>
 #include "jfs_incore.h"
 #include "jfs_superblock.h"
 #include "jfs_inode.h"
@@ -1477,13 +1478,10 @@ static struct dentry *jfs_lookup(struct inode *dip, struct dentry *dentry, struc
         return dentry;
 }
 
-struct dentry *jfs_get_dentry(struct super_block *sb, void *vobjp)
+static struct inode *jfs_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 == 0)
                 return ERR_PTR(-ESTALE);
@@ -1493,20 +1491,25 @@ struct dentry *jfs_get_dentry(struct super_block *sb, void *vobjp)
 
         if (is_bad_inode(inode) ||
             (generation && inode->i_generation != generation)) {
-                result = ERR_PTR(-ESTALE);
-                goto out_iput;
+                iput(inode);
+                return ERR_PTR(-ESTALE);
         }
 
-        result = d_alloc_anon(inode);
-        if (!result) {
-                result = ERR_PTR(-ENOMEM);
-                goto out_iput;
-        }
-        return result;
+        return inode;
+}
 
- out_iput:
-        iput(inode);
-        return result;
+struct dentry *jfs_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,
+                                    jfs_nfs_get_inode);
+}
+
+struct dentry *jfs_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,
+                                    jfs_nfs_get_inode);
 }
 
 struct dentry *jfs_get_parent(struct dentry *dentry)
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index cff60c171943..81c3228ca455 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -738,7 +738,8 @@ static const struct super_operations jfs_super_operations = {
 };
 
 static struct export_operations jfs_export_operations = {
-        .get_dentry     = jfs_get_dentry,
+        .fh_to_dentry   = jfs_fh_to_dentry,
+        .fh_to_parent   = jfs_fh_to_parent,
         .get_parent     = jfs_get_parent,
 };