[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/sysv/itree.c b/fs/sysv/itree.c
index 86f5f8d..f2bcccd 100644
--- a/fs/sysv/itree.c
+++ b/fs/sysv/itree.c
@@ -465,7 +465,7 @@
 {
 	return generic_block_bmap(mapping,block,get_block);
 }
-struct address_space_operations sysv_aops = {
+const struct address_space_operations sysv_aops = {
 	.readpage = sysv_readpage,
 	.writepage = sysv_writepage,
 	.sync_page = block_sync_page,
diff --git a/fs/sysv/sysv.h b/fs/sysv/sysv.h
index 393a480..9dcc821 100644
--- a/fs/sysv/sysv.h
+++ b/fs/sysv/sysv.h
@@ -161,7 +161,7 @@
 extern struct inode_operations sysv_fast_symlink_inode_operations;
 extern const struct file_operations sysv_file_operations;
 extern const struct file_operations sysv_dir_operations;
-extern struct address_space_operations sysv_aops;
+extern const struct address_space_operations sysv_aops;
 extern struct super_operations sysv_sops;
 extern struct dentry_operations sysv_dentry_operations;