[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/fs/qnx4/inode.c b/fs/qnx4/inode.c
index 2f24c46..8bc182a 100644
--- a/fs/qnx4/inode.c
+++ b/fs/qnx4/inode.c
@@ -450,7 +450,7 @@
 {
 	return generic_block_bmap(mapping,block,qnx4_get_block);
 }
-static struct address_space_operations qnx4_aops = {
+static const struct address_space_operations qnx4_aops = {
 	.readpage	= qnx4_readpage,
 	.writepage	= qnx4_writepage,
 	.sync_page	= block_sync_page,