1 files changed, 49 insertions, 41 deletions

diff --git a/fs/efs/namei.c b/fs/efs/namei.c
index ed4a207fe22..356c044e2cd 100644
--- a/fs/efs/namei.c
+++ b/fs/efs/namei.c
@@ -8,8 +8,9 @@
 
 #include <linux/buffer_head.h>
 #include <linux/string.h>
-#include <linux/efs_fs.h>
-#include <linux/smp_lock.h>
+#include <linux/exportfs.h>
+#include "efs.h"
+
 
 static efs_ino_t efs_find_entry(struct inode *inode, const char *name, int len) {
 	struct buffer_head *bh;
@@ -22,20 +23,22 @@ static efs_ino_t efs_find_entry(struct inode *inode, const char *name, int len)
 	efs_block_t		block;
  
 	if (inode->i_size & (EFS_DIRBSIZE-1))
-		printk(KERN_WARNING "EFS: WARNING: find_entry(): directory size not a multiple of EFS_DIRBSIZE\n");
+		pr_warn("%s(): directory size not a multiple of EFS_DIRBSIZE\n",
+			__func__);
 
 	for(block = 0; block < inode->i_blocks; block++) {
 
 		bh = sb_bread(inode->i_sb, efs_bmap(inode, block));
 		if (!bh) {
-			printk(KERN_ERR "EFS: find_entry(): failed to read dir block %d\n", block);
+			pr_err("%s(): failed to read dir block %d\n",
+			       __func__, block);
 			return 0;
 		}
     
 		dirblock = (struct efs_dir *) bh->b_data;
 
 		if (be16_to_cpu(dirblock->magic) != EFS_DIRBLK_MAGIC) {
-			printk(KERN_ERR "EFS: find_entry(): invalid directory block\n");
+			pr_err("%s(): invalid directory block\n", __func__);
 			brelse(bh);
 			return(0);
 		}
@@ -57,54 +60,59 @@ static efs_ino_t efs_find_entry(struct inode *inode, const char *name, int len)
 	return(0);
 }
 
-struct dentry *efs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd) {
+struct dentry *efs_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)
+{
 	efs_ino_t inodenum;
-	struct inode * inode = NULL;
+	struct inode *inode = NULL;
 
-	lock_kernel();
 	inodenum = efs_find_entry(dir, dentry->d_name.name, dentry->d_name.len);
-	if (inodenum) {
-		if (!(inode = iget(dir->i_sb, inodenum))) {
-			unlock_kernel();
-			return ERR_PTR(-EACCES);
-		}
-	}
-	unlock_kernel();
+	if (inodenum)
+		inode = efs_iget(dir->i_sb, inodenum);
 
-	d_add(dentry, inode);
-	return NULL;
+	return d_splice_alias(inode, dentry);
 }
 
-struct dentry *efs_get_parent(struct dentry *child)
+static struct inode *efs_nfs_get_inode(struct super_block *sb, u64 ino,
+		u32 generation)
 {
-	struct dentry *parent;
 	struct inode *inode;
-	efs_ino_t ino;
-	int error;
 
-	lock_kernel();
+	if (ino == 0)
+		return ERR_PTR(-ESTALE);
+	inode = efs_iget(sb, ino);
+	if (IS_ERR(inode))
+		return ERR_CAST(inode);
 
-	error = -ENOENT;
-	ino = efs_find_entry(child->d_inode, "..", 2);
-	if (!ino)
-		goto fail;
+	if (generation && inode->i_generation != generation) {
+		iput(inode);
+		return ERR_PTR(-ESTALE);
+	}
 
-	error = -EACCES;
-	inode = iget(child->d_inode->i_sb, ino);
-	if (!inode)
-		goto fail;
+	return inode;
+}
 
-	error = -ENOMEM;
-	parent = d_alloc_anon(inode);
-	if (!parent)
-		goto fail_iput;
+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);
+}
 
-	unlock_kernel();
-	return parent;
+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)
+{
+	struct dentry *parent = ERR_PTR(-ENOENT);
+	efs_ino_t ino;
 
- fail_iput:
-	iput(inode);
- fail:
-	unlock_kernel();
-	return ERR_PTR(error);
+	ino = efs_find_entry(child->d_inode, "..", 2);
+	if (ino)
+		parent = d_obtain_alias(efs_iget(child->d_inode->i_sb, ino));
+
+	return parent;
 }