nfsd race fixes: reiserfs

... and the same for reiserfs.  The difference here is that we need
insert_inode_locked4() to match iget5_locked().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 6c4c2c6..145c2d3 100644 (file)
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -1753,6 +1753,7 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
                       struct inode *inode)
 {
        struct super_block *sb;
+       struct reiserfs_iget_args args;
        INITIALIZE_PATH(path_to_key);
        struct cpu_key key;
        struct item_head ih;
@@ -1780,6 +1781,14 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
                err = -ENOMEM;
                goto out_bad_inode;
        }
+       args.objectid = inode->i_ino = le32_to_cpu(ih.ih_key.k_objectid);
+       memcpy(INODE_PKEY(inode), &(ih.ih_key), KEY_SIZE);
+       args.dirid = le32_to_cpu(ih.ih_key.k_dir_id);
+       if (insert_inode_locked4(inode, args.objectid,
+                            reiserfs_find_actor, &args) < 0) {
+               err = -EINVAL;
+               goto out_bad_inode;
+       }
        if (old_format_only(sb))
                /* not a perfect generation count, as object ids can be reused, but 
                 ** this is as good as reiserfs can do right now.
@@ -1859,13 +1868,9 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
        } else {
                inode2sd(&sd, inode, inode->i_size);
        }
-       // these do not go to on-disk stat data
-       inode->i_ino = le32_to_cpu(ih.ih_key.k_objectid);
-
        // store in in-core inode the key of stat data and version all
        // object items will have (directory items will have old offset
        // format, other new objects will consist of new items)
-       memcpy(INODE_PKEY(inode), &(ih.ih_key), KEY_SIZE);
        if (old_format_only(sb) || S_ISDIR(mode) || S_ISLNK(mode))
                set_inode_item_key_version(inode, KEY_FORMAT_3_5);
        else
@@ -1929,7 +1934,6 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
                reiserfs_mark_inode_private(inode);
        }
 
-       insert_inode_hash(inode);
        reiserfs_update_sd(th, inode);
        reiserfs_check_path(&path_to_key);
 
@@ -1956,6 +1960,7 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
       out_inserted_sd:
        inode->i_nlink = 0;
        th->t_trans_id = 0;     /* so the caller can't use this handle later */
+       unlock_new_inode(inode); /* OK to do even if we hadn't locked it */
 
        /* If we were inheriting an ACL, we need to release the lock so that
         * iput doesn't deadlock in reiserfs_delete_xattrs. The locking

diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index 4f322e5..738967f 100644 (file)
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -646,6 +646,7 @@ static int reiserfs_create(struct inode *dir, struct dentry *dentry, int mode,
                err = journal_end(&th, dir->i_sb, jbegin_count);
                if (err)
                        retval = err;
+               unlock_new_inode(inode);
                iput(inode);
                goto out_failed;
        }
@@ -653,6 +654,7 @@ static int reiserfs_create(struct inode *dir, struct dentry *dentry, int mode,
        reiserfs_update_inode_transaction(dir);
 
        d_instantiate(dentry, inode);
+       unlock_new_inode(inode);
        retval = journal_end(&th, dir->i_sb, jbegin_count);
 
       out_failed:
@@ -727,11 +729,13 @@ static int reiserfs_mknod(struct inode *dir, struct dentry *dentry, int mode,
                err = journal_end(&th, dir->i_sb, jbegin_count);
                if (err)
                        retval = err;
+               unlock_new_inode(inode);
                iput(inode);
                goto out_failed;
        }
 
        d_instantiate(dentry, inode);
+       unlock_new_inode(inode);
        retval = journal_end(&th, dir->i_sb, jbegin_count);
 
       out_failed:
@@ -812,6 +816,7 @@ static int reiserfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
                err = journal_end(&th, dir->i_sb, jbegin_count);
                if (err)
                        retval = err;
+               unlock_new_inode(inode);
                iput(inode);
                goto out_failed;
        }
@@ -819,6 +824,7 @@ static int reiserfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
        reiserfs_update_sd(&th, dir);
 
        d_instantiate(dentry, inode);
+       unlock_new_inode(inode);
        retval = journal_end(&th, dir->i_sb, jbegin_count);
       out_failed:
        if (locked)
@@ -1096,11 +1102,13 @@ static int reiserfs_symlink(struct inode *parent_dir,
                err = journal_end(&th, parent_dir->i_sb, jbegin_count);
                if (err)
                        retval = err;
+               unlock_new_inode(inode);
                iput(inode);
                goto out_failed;
        }
 
        d_instantiate(dentry, inode);
+       unlock_new_inode(inode);
        retval = journal_end(&th, parent_dir->i_sb, jbegin_count);
       out_failed:
        reiserfs_write_unlock(parent_dir->i_sb);