[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>

6 files changed, 8 insertions, 8 deletions

diff --git a/include/linux/coda_linux.h b/include/linux/coda_linux.h
index 7b5c5df..be512cc 100644
--- a/include/linux/coda_linux.h
+++ b/include/linux/coda_linux.h
@@ -27,8 +27,8 @@ extern struct inode_operations coda_dir_inode_operations;
 extern struct inode_operations coda_file_inode_operations;
 extern struct inode_operations coda_ioctl_inode_operations;
 
-extern struct address_space_operations coda_file_aops;
-extern struct address_space_operations coda_symlink_aops;
+extern const struct address_space_operations coda_file_aops;
+extern const struct address_space_operations coda_symlink_aops;
 
 extern const struct file_operations coda_dir_operations;
 extern const struct file_operations coda_file_operations;
diff --git a/include/linux/efs_fs.h b/include/linux/efs_fs.h
index fbfa6b5..278ef44 100644
--- a/include/linux/efs_fs.h
+++ b/include/linux/efs_fs.h
@@ -38,7 +38,7 @@ struct statfs;
 
 extern struct inode_operations efs_dir_inode_operations;
 extern const struct file_operations efs_dir_operations;
-extern struct address_space_operations efs_symlink_aops;
+extern const struct address_space_operations efs_symlink_aops;
 
 extern void efs_read_inode(struct inode *);
 extern efs_block_t efs_map_block(struct inode *, efs_block_t);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 2d8b348..e04a5cf 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -392,7 +392,7 @@ struct address_space {
 	unsigned int		truncate_count;	/* Cover race condition with truncate */
 	unsigned long		nrpages;	/* number of total pages */
 	pgoff_t			writeback_index;/* writeback starts here */
-	struct address_space_operations *a_ops;	/* methods */
+	const struct address_space_operations *a_ops;	/* methods */
 	unsigned long		flags;		/* error bits/gfp mask */
 	struct backing_dev_info *backing_dev_info; /* device readahead, etc */
 	spinlock_t		private_lock;	/* for use by the address_space */
@@ -1405,7 +1405,7 @@ extern void bd_forget(struct inode *inode);
 extern void bdput(struct block_device *);
 extern struct block_device *open_by_devnum(dev_t, unsigned);
 extern const struct file_operations def_blk_fops;
-extern struct address_space_operations def_blk_aops;
+extern const struct address_space_operations def_blk_aops;
 extern const struct file_operations def_chr_fops;
 extern const struct file_operations bad_sock_fops;
 extern const struct file_operations def_fifo_fops;
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 0a1740b..d90b1bb 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -335,7 +335,7 @@ extern struct inode_operations nfs_file_inode_operations;
 extern struct inode_operations nfs3_file_inode_operations;
 #endif /* CONFIG_NFS_V3 */
 extern const struct file_operations nfs_file_operations;
-extern struct address_space_operations nfs_file_aops;
+extern const struct address_space_operations nfs_file_aops;
 
 static inline struct rpc_cred *nfs_file_cred(struct file *file)
 {
diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h
index 5676c42..daa2d83 100644
--- a/include/linux/reiserfs_fs.h
+++ b/include/linux/reiserfs_fs.h
@@ -1973,7 +1973,7 @@ void reiserfs_unmap_buffer(struct buffer_head *);
 /* file.c */
 extern struct inode_operations reiserfs_file_inode_operations;
 extern const struct file_operations reiserfs_file_operations;
-extern struct address_space_operations reiserfs_address_space_operations;
+extern const struct address_space_operations reiserfs_address_space_operations;
 
 /* fix_nodes.c */
 
diff --git a/include/linux/ufs_fs.h b/include/linux/ufs_fs.h
index 914f911..e39b7cc 100644
--- a/include/linux/ufs_fs.h
+++ b/include/linux/ufs_fs.h
@@ -966,7 +966,7 @@ extern void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de,
 extern struct inode_operations ufs_file_inode_operations;
 extern const struct file_operations ufs_file_operations;
 
-extern struct address_space_operations ufs_aops;
+extern const struct address_space_operations ufs_aops;
 
 /* ialloc.c */
 extern void ufs_free_inode (struct inode *inode);