From: Mr. Ubuntu <ubuntu@dhcp186.fsl.cs.sunysb.edu>
Date: Thu, 12 May 2022 21:54:12 +0000 (-0400)
Subject: Added new BMAP methods for 5.6(new_bmap.patch) and 5.2(old_bmap.patch)
X-Git-Url: https://git.fsl.cs.sunysb.edu/?a=commitdiff_plain;h=6c15769f8e5eff7288612936c169ed002a23bf5c;p=wrapfs-mgmt.git

Added new BMAP methods for 5.6(new_bmap.patch) and 5.2(old_bmap.patch)
---

diff --git a/bug-fixes/new_bmap.patch b/bug-fixes/new_bmap.patch
new file mode 100644
index 0000000..f054320
--- /dev/null
+++ b/bug-fixes/new_bmap.patch
@@ -0,0 +1,24 @@
+diff --git a/fs/wrapfs/mmap.c b/fs/wrapfs/mmap.c
+index 9897fa585b97..3eea96f41deb 100644
+--- a/fs/wrapfs/mmap.c
++++ b/fs/wrapfs/mmap.c
+@@ -84,8 +84,19 @@ 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)
++{
++	struct inode *lower_inode = wrapfs_lower_inode(mapping->host);
++	int ret = bmap(lower_inode, &block);
++
++	if (ret)
++		return 0;
++	return block;
++}
++
+ const struct address_space_operations wrapfs_aops = {
+ 	.direct_IO = wrapfs_direct_IO,
++	.bmap = wrapfs_bmap,
+ };
+ 
+ const struct vm_operations_struct wrapfs_vm_ops = {