Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

[sfrench/cifs-2.6.git] / fs / jfs / namei.c

diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index 932797ba433b0b5d2ac1a4c06f122564990049d0..0ba6778edaa2ae73d9595d8f425c7d3e98dce7a7 100644 (file)
--- 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"
@@ -1102,8 +1103,8 @@ static int jfs_rename(struct inode *old_dir, struct dentry *old_dentry,
         * Make sure dest inode number (if any) is what we think it is
         */
        rc = dtSearch(new_dir, &new_dname, &ino, &btstack, JFS_LOOKUP);
-       if (rc == 0) {
-               if ((new_ip == 0) || (ino != new_ip->i_ino)) {
+       if (!rc) {
+               if ((!new_ip) || (ino != new_ip->i_ino)) {
                        rc = -ESTALE;
                        goto out3;
                }
@@ -1461,12 +1462,10 @@ static struct dentry *jfs_lookup(struct inode *dip, struct dentry *dentry, struc
                }
        }
 
-       ip = iget(dip->i_sb, inum);
-       if (ip == NULL || is_bad_inode(ip)) {
+       ip = jfs_iget(dip->i_sb, inum);
+       if (IS_ERR(ip)) {
                jfs_err("jfs_lookup: iget failed on inum %d", (uint) inum);
-               if (ip)
-                       iput(ip);
-               return ERR_PTR(-EACCES);
+               return ERR_CAST(ip);
        }
 
        dentry = d_splice_alias(ip, dentry);
@@ -1477,36 +1476,37 @@ 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);
-       inode = iget(sb, ino);
-       if (inode == NULL)
-               return ERR_PTR(-ENOMEM);
-
-       if (is_bad_inode(inode) ||
-           (generation && inode->i_generation != generation)) {
-               result = ERR_PTR(-ESTALE);
-               goto out_iput;
-       }
+       inode = jfs_iget(sb, ino);
+       if (IS_ERR(inode))
+               return ERR_CAST(inode);
 
-       result = d_alloc_anon(inode);
-       if (!result) {
-               result = ERR_PTR(-ENOMEM);
-               goto out_iput;
+       if (generation && inode->i_generation != generation) {
+               iput(inode);
+               return ERR_PTR(-ESTALE);
        }
-       return result;
 
- out_iput:
-       iput(inode);
-       return result;
+       return inode;
+}
+
+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)
@@ -1518,17 +1518,14 @@ struct dentry *jfs_get_parent(struct dentry *dentry)
 
        parent_ino =
                le32_to_cpu(JFS_IP(dentry->d_inode)->i_dtroot.header.idotdot);
-       inode = iget(sb, parent_ino);
-       if (inode) {
-               if (is_bad_inode(inode)) {
+       inode = jfs_iget(sb, parent_ino);
+       if (IS_ERR(inode)) {
+               parent = ERR_CAST(inode);
+       } else {
+               parent = d_alloc_anon(inode);
+               if (!parent) {
+                       parent = ERR_PTR(-ENOMEM);
                        iput(inode);
-                       parent = ERR_PTR(-EACCES);
-               } else {
-                       parent = d_alloc_anon(inode);
-                       if (!parent) {
-                               parent = ERR_PTR(-ENOMEM);
-                               iput(inode);
-                       }
                }
        }
 
@@ -1559,7 +1556,10 @@ const struct file_operations jfs_dir_operations = {
        .read           = generic_read_dir,
        .readdir        = jfs_readdir,
        .fsync          = jfs_fsync,
-       .ioctl          = jfs_ioctl,
+       .unlocked_ioctl = jfs_ioctl,
+#ifdef CONFIG_COMPAT
+       .compat_ioctl   = jfs_compat_ioctl,
+#endif
 };
 
 static int jfs_ci_hash(struct dentry *dir, struct qstr *this)