efs: 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>

3 files changed, 27 insertions, 18 deletions

diff --git a/fs/efs/namei.c b/fs/efs/namei.c
index 5276b19423c1..f7f407075be1 100644
--- a/fs/efs/namei.c
+++ b/fs/efs/namei.c
@@ -10,6 +10,8 @@
 #include <linux/string.h>
 #include <linux/efs_fs.h>
 #include <linux/smp_lock.h>
+#include <linux/exportfs.h>
+
 
 static efs_ino_t efs_find_entry(struct inode *inode, const char *name, int len) {
         struct buffer_head *bh;
@@ -75,13 +77,10 @@ struct dentry *efs_lookup(struct inode *dir, struct dentry *dentry, struct namei
         return NULL;
 }
 
-struct dentry *efs_get_dentry(struct super_block *sb, void *vobjp)
+static struct inode *efs_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);
@@ -91,20 +90,25 @@ struct dentry *efs_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 *efs_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,
+                                    efs_nfs_get_inode);
+}
+
+struct dentry *efs_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,
+                                    efs_nfs_get_inode);
 }
 
 struct dentry *efs_get_parent(struct dentry *child)
diff --git a/fs/efs/super.c b/fs/efs/super.c
index 25d0326c5f1c..d8ce21b82fba 100644
--- a/fs/efs/super.c
+++ b/fs/efs/super.c
@@ -114,7 +114,8 @@ static const struct super_operations efs_superblock_operations = {
 };
 
 static struct export_operations efs_export_ops = {
-        .get_dentry     = efs_get_dentry,
+        .fh_to_dentry   = efs_fh_to_dentry,
+        .fh_to_parent   = efs_fh_to_parent,
         .get_parent     = efs_get_parent,
 };
 
diff --git a/include/linux/efs_fs.h b/include/linux/efs_fs.h
index 16cb25cbf7c5..dd57fe523e97 100644
--- a/include/linux/efs_fs.h
+++ b/include/linux/efs_fs.h
@@ -35,6 +35,7 @@ static inline struct efs_sb_info *SUPER_INFO(struct super_block *sb)
 }
 
 struct statfs;
+struct fid;
 
 extern const struct inode_operations efs_dir_inode_operations;
 extern const struct file_operations efs_dir_operations;
@@ -45,7 +46,10 @@ extern efs_block_t efs_map_block(struct inode *, efs_block_t);
 extern int efs_get_block(struct inode *, sector_t, struct buffer_head *, int);
 
 extern struct dentry *efs_lookup(struct inode *, struct dentry *, struct nameidata *);
-extern struct dentry *efs_get_dentry(struct super_block *sb, void *vobjp);
+extern struct dentry *efs_fh_to_dentry(struct super_block *sb, struct fid *fid,
+                int fh_len, int fh_type);
+extern struct dentry *efs_fh_to_parent(struct super_block *sb, struct fid *fid,
+                int fh_len, int fh_type);
 extern struct dentry *efs_get_parent(struct dentry *);
 extern int efs_bmap(struct inode *, int);