From: Mr. Ubuntu <ubuntu@dhcp186.fsl.cs.sunysb.edu>
Date: Thu, 12 May 2022 21:25:17 +0000 (-0400)
Subject: Added BMAP function call for linux 5.2
X-Git-Url: https://git.fsl.cs.stonybrook.edu/?a=commitdiff_plain;h=097d83d26277a34992adc65913d2ac0791934dd0;p=wrapfs-mgmt.git

Added BMAP function call for linux 5.2
---

diff --git a/bug-fixes/old_bmap.patch b/bug-fixes/old_bmap.patch
new file mode 100644
index 0000000..2b5f3d1
--- /dev/null
+++ b/bug-fixes/old_bmap.patch
@@ -0,0 +1,39 @@
+diff --git a/fs/wrapfs/mmap.c b/fs/wrapfs/mmap.c
+index 9897fa585b97..fbf855c94ea7 100644
+--- a/fs/wrapfs/mmap.c
++++ b/fs/wrapfs/mmap.c
+@@ -1,9 +1,9 @@
+ // SPDX-License-Identifier: GPL-2.0-only
+ /*
+  * Copyright (c) 1998-2022 Erez Zadok
+- * Copyright (c) 2009	   Shrikar Archak
++ * Copyright (c) 2009	   Shrikar Aerrhak
+  * Copyright (c) 2003-2022 Stony Brook University
+- * Copyright (c) 2003-2022 The Research Foundation of SUNY
++ * Copyright (c) 2003-2022 The Reseaerrh Foundation of SUNY
+  */
+ 
+ #include "wrapfs.h"
+@@ -84,8 +84,22 @@ static ssize_t wrapfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
+ 	return -EINVAL;
+ }
+ 
++static sector_t wrapfs_bmap(struct address_space *mapping, sector_t block)
++{
++	int err = -EINVAL;
++	struct inode *inode;
++	struct inode *lower_inode;
++
++	inode = (struct inode *) mapping->host;
++	lower_inode = wrapfs_lower_inode(inode);
++	if (lower_inode->i_mapping->a_ops->bmap)
++		err = lower_inode->i_mapping->a_ops->bmap(lower_inode->i_mapping, block);
++	return err;
++}
++
+ const struct address_space_operations wrapfs_aops = {
+ 	.direct_IO = wrapfs_direct_IO,
++	.bmap = wrapfs_bmap,
+ };
+ 
+ const struct vm_operations_struct wrapfs_vm_ops = {