[PATCH] mark address_space_operations const
Same as with already do with the file operations: keep them in .rodata and
prevents people from doing runtime patching.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Steven French <sfrench@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 3c74ea7..18dd026 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -210,7 +210,7 @@
{
struct file *file = lo->lo_backing_file; /* kudos to NFsckingS */
struct address_space *mapping = file->f_mapping;
- struct address_space_operations *aops = mapping->a_ops;
+ const struct address_space_operations *aops = mapping->a_ops;
pgoff_t index;
unsigned offset, bv_offs;
int len, ret;
@@ -784,7 +784,7 @@
error = -EINVAL;
if (S_ISREG(inode->i_mode) || S_ISBLK(inode->i_mode)) {
- struct address_space_operations *aops = mapping->a_ops;
+ const struct address_space_operations *aops = mapping->a_ops;
/*
* If we can't read - sorry. If we only can't write - well,
* it's going to be read-only.
diff --git a/drivers/block/rd.c b/drivers/block/rd.c
index 940bfd7..0378da04 100644
--- a/drivers/block/rd.c
+++ b/drivers/block/rd.c
@@ -191,7 +191,7 @@
return 0;
}
-static struct address_space_operations ramdisk_aops = {
+static const struct address_space_operations ramdisk_aops = {
.readpage = ramdisk_readpage,
.prepare_write = ramdisk_prepare_write,
.commit_write = ramdisk_commit_write,