[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 <[email protected]> Cc: Steven French <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
jix · Jun 28, 2006 · f5e54d6 · f5e54d6
1 parent a052b68
commit f5e54d6
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Showing 89 changed files with 121 additions and 121 deletions.
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
@@ -210,7 +210,7 @@ static int do_lo_send_aops(struct loop_device *lo, struct bio_vec *bvec,
 {
 	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 @@ static int loop_set_fd(struct loop_device *lo, struct file *lo_file,
 
 	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
@@ -191,7 +191,7 @@ static int ramdisk_set_page_dirty(struct page *page)
 	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,

diff --git a/fs/9p/v9fs_vfs.h b/fs/9p/v9fs_vfs.h
@@ -38,7 +38,7 @@
  */
 
 extern struct file_system_type v9fs_fs_type;
-extern struct address_space_operations v9fs_addr_operations;
+extern const struct address_space_operations v9fs_addr_operations;
 extern const struct file_operations v9fs_file_operations;
 extern const struct file_operations v9fs_dir_operations;
 extern struct dentry_operations v9fs_dentry_operations;

diff --git a/fs/9p/vfs_addr.c b/fs/9p/vfs_addr.c
@@ -103,6 +103,6 @@ static int v9fs_vfs_readpage(struct file *filp, struct page *page)
 	return retval;
 }
 
-struct address_space_operations v9fs_addr_operations = {
+const struct address_space_operations v9fs_addr_operations = {
       .readpage = v9fs_vfs_readpage,
 };
diff --git a/fs/adfs/inode.c b/fs/adfs/inode.c
@@ -72,7 +72,7 @@ static sector_t _adfs_bmap(struct address_space *mapping, sector_t block)
 	return generic_block_bmap(mapping, block, adfs_get_block);
 }
 
-static struct address_space_operations adfs_aops = {
+static const struct address_space_operations adfs_aops = {
 	.readpage	= adfs_readpage,
 	.writepage	= adfs_writepage,
 	.sync_page	= block_sync_page,

diff --git a/fs/affs/affs.h b/fs/affs/affs.h
@@ -195,9 +195,9 @@ extern struct inode_operations   affs_symlink_inode_operations;
 extern const struct file_operations	 affs_file_operations;
 extern const struct file_operations	 affs_file_operations_ofs;
 extern const struct file_operations	 affs_dir_operations;
-extern struct address_space_operations	 affs_symlink_aops;
-extern struct address_space_operations	 affs_aops;
-extern struct address_space_operations	 affs_aops_ofs;
+extern const struct address_space_operations	 affs_symlink_aops;
+extern const struct address_space_operations	 affs_aops;
+extern const struct address_space_operations	 affs_aops_ofs;
 
 extern struct dentry_operations	 affs_dentry_operations;
 extern struct dentry_operations	 affs_dentry_operations_intl;

diff --git a/fs/affs/file.c b/fs/affs/file.c
@@ -406,7 +406,7 @@ static sector_t _affs_bmap(struct address_space *mapping, sector_t block)
 {
 	return generic_block_bmap(mapping,block,affs_get_block);
 }
-struct address_space_operations affs_aops = {
+const struct address_space_operations affs_aops = {
 	.readpage = affs_readpage,
 	.writepage = affs_writepage,
 	.sync_page = block_sync_page,
@@ -759,7 +759,7 @@ static int affs_commit_write_ofs(struct file *file, struct page *page, unsigned
 	goto done;
 }
 
-struct address_space_operations affs_aops_ofs = {
+const struct address_space_operations affs_aops_ofs = {
 	.readpage = affs_readpage_ofs,
 	//.writepage = affs_writepage_ofs,
 	//.sync_page = affs_sync_page_ofs,

diff --git a/fs/affs/symlink.c b/fs/affs/symlink.c
@@ -66,7 +66,7 @@ static int affs_symlink_readpage(struct file *file, struct page *page)
 	return err;
 }
 
-struct address_space_operations affs_symlink_aops = {
+const struct address_space_operations affs_symlink_aops = {
 	.readpage	= affs_symlink_readpage,
 };
 

diff --git a/fs/afs/file.c b/fs/afs/file.c
@@ -35,7 +35,7 @@ struct inode_operations afs_file_inode_operations = {
 	.getattr	= afs_inode_getattr,
 };
 
-struct address_space_operations afs_fs_aops = {
+const struct address_space_operations afs_fs_aops = {
 	.readpage	= afs_file_readpage,
 	.sync_page	= block_sync_page,
 	.set_page_dirty	= __set_page_dirty_nobuffers,

diff --git a/fs/afs/internal.h b/fs/afs/internal.h
@@ -69,7 +69,7 @@ extern const struct file_operations afs_dir_file_operations;
 /*
  * file.c
  */
-extern struct address_space_operations afs_fs_aops;
+extern const struct address_space_operations afs_fs_aops;
 extern struct inode_operations afs_file_inode_operations;
 
 #ifdef AFS_CACHING_SUPPORT

diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
@@ -73,7 +73,7 @@ static struct inode_operations befs_dir_inode_operations = {
 	.lookup		= befs_lookup,
 };
 
-static struct address_space_operations befs_aops = {
+static const struct address_space_operations befs_aops = {
 	.readpage	= befs_readpage,
 	.sync_page	= block_sync_page,
 	.bmap		= befs_bmap,

diff --git a/fs/bfs/bfs.h b/fs/bfs/bfs.h
@@ -50,7 +50,7 @@ static inline struct bfs_inode_info *BFS_I(struct inode *inode)
 /* file.c */
 extern struct inode_operations bfs_file_inops;
 extern const struct file_operations bfs_file_operations;
-extern struct address_space_operations bfs_aops;
+extern const struct address_space_operations bfs_aops;
 
 /* dir.c */
 extern struct inode_operations bfs_dir_inops;

diff --git a/fs/bfs/file.c b/fs/bfs/file.c
@@ -153,7 +153,7 @@ static sector_t bfs_bmap(struct address_space *mapping, sector_t block)
 	return generic_block_bmap(mapping, block, bfs_get_block);
 }
 
-struct address_space_operations bfs_aops = {
+const struct address_space_operations bfs_aops = {
 	.readpage	= bfs_readpage,
 	.writepage	= bfs_writepage,
 	.sync_page	= block_sync_page,

diff --git a/fs/block_dev.c b/fs/block_dev.c
@@ -1095,7 +1095,7 @@ static long block_ioctl(struct file *file, unsigned cmd, unsigned long arg)
 	return blkdev_ioctl(file->f_mapping->host, file, cmd, arg);
 }
 
-struct address_space_operations def_blk_aops = {
+const struct address_space_operations def_blk_aops = {
 	.readpage	= blkdev_readpage,
 	.writepage	= blkdev_writepage,
 	.sync_page	= block_sync_page,

diff --git a/fs/buffer.c b/fs/buffer.c
@@ -2598,7 +2598,7 @@ int nobh_truncate_page(struct address_space *mapping, loff_t from)
 	unsigned offset = from & (PAGE_CACHE_SIZE-1);
 	unsigned to;
 	struct page *page;
-	struct address_space_operations *a_ops = mapping->a_ops;
+	const struct address_space_operations *a_ops = mapping->a_ops;
 	char *kaddr;
 	int ret = 0;
 

diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
@@ -32,8 +32,8 @@
 #define TRUE 1
 #endif
 
-extern struct address_space_operations cifs_addr_ops;
-extern struct address_space_operations cifs_addr_ops_smallbuf;
+extern const struct address_space_operations cifs_addr_ops;
+extern const struct address_space_operations cifs_addr_ops_smallbuf;
 
 /* Functions related to super block operations */
 extern struct super_operations cifs_super_ops;

diff --git a/fs/cifs/file.c b/fs/cifs/file.c
@@ -1942,7 +1942,7 @@ static int cifs_prepare_write(struct file *file, struct page *page,
 	return 0;
 }
 
-struct address_space_operations cifs_addr_ops = {
+const struct address_space_operations cifs_addr_ops = {
 	.readpage = cifs_readpage,
 	.readpages = cifs_readpages,
 	.writepage = cifs_writepage,
@@ -1959,7 +1959,7 @@ struct address_space_operations cifs_addr_ops = {
  * contain the header plus one complete page of data.  Otherwise, we need
  * to leave cifs_readpages out of the address space operations.
  */
-struct address_space_operations cifs_addr_ops_smallbuf = {
+const struct address_space_operations cifs_addr_ops_smallbuf = {
 	.readpage = cifs_readpage,
 	.writepage = cifs_writepage,
 	.writepages = cifs_writepages,

diff --git a/fs/coda/symlink.c b/fs/coda/symlink.c
@@ -50,6 +50,6 @@ static int coda_symlink_filler(struct file *file, struct page *page)
 	return error;
 }
 
-struct address_space_operations coda_symlink_aops = {
+const struct address_space_operations coda_symlink_aops = {
 	.readpage	= coda_symlink_filler,
 };
diff --git a/fs/configfs/inode.c b/fs/configfs/inode.c
@@ -38,7 +38,7 @@
 
 extern struct super_block * configfs_sb;
 
-static struct address_space_operations configfs_aops = {
+static const struct address_space_operations configfs_aops = {
 	.readpage	= simple_readpage,
 	.prepare_write	= simple_prepare_write,
 	.commit_write	= simple_commit_write

diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c
@@ -30,7 +30,7 @@
 static struct super_operations cramfs_ops;
 static struct inode_operations cramfs_dir_inode_operations;
 static const struct file_operations cramfs_directory_operations;
-static struct address_space_operations cramfs_aops;
+static const struct address_space_operations cramfs_aops;
 
 static DEFINE_MUTEX(read_mutex);
 
@@ -501,7 +501,7 @@ static int cramfs_readpage(struct file *file, struct page * page)
 	return 0;
 }
 
-static struct address_space_operations cramfs_aops = {
+static const struct address_space_operations cramfs_aops = {
 	.readpage = cramfs_readpage
 };
 

diff --git a/fs/efs/inode.c b/fs/efs/inode.c
@@ -21,7 +21,7 @@ static sector_t _efs_bmap(struct address_space *mapping, sector_t block)
 {
 	return generic_block_bmap(mapping,block,efs_get_block);
 }
-static struct address_space_operations efs_aops = {
+static const struct address_space_operations efs_aops = {
 	.readpage = efs_readpage,
 	.sync_page = block_sync_page,
 	.bmap = _efs_bmap

diff --git a/fs/efs/symlink.c b/fs/efs/symlink.c
@@ -53,6 +53,6 @@ static int efs_symlink_readpage(struct file *file, struct page *page)
 	return err;
 }
 
-struct address_space_operations efs_symlink_aops = {
+const struct address_space_operations efs_symlink_aops = {
 	.readpage	= efs_symlink_readpage
 };
diff --git a/fs/ext2/ext2.h b/fs/ext2/ext2.h
@@ -162,9 +162,9 @@ extern const struct file_operations ext2_file_operations;
 extern const struct file_operations ext2_xip_file_operations;
 
 /* inode.c */
-extern struct address_space_operations ext2_aops;
-extern struct address_space_operations ext2_aops_xip;
-extern struct address_space_operations ext2_nobh_aops;
+extern const struct address_space_operations ext2_aops;
+extern const struct address_space_operations ext2_aops_xip;
+extern const struct address_space_operations ext2_nobh_aops;
 
 /* namei.c */
 extern struct inode_operations ext2_dir_inode_operations;

diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
@@ -684,7 +684,7 @@ ext2_writepages(struct address_space *mapping, struct writeback_control *wbc)
 	return mpage_writepages(mapping, wbc, ext2_get_block);
 }
 
-struct address_space_operations ext2_aops = {
+const struct address_space_operations ext2_aops = {
 	.readpage		= ext2_readpage,
 	.readpages		= ext2_readpages,
 	.writepage		= ext2_writepage,
@@ -697,12 +697,12 @@ struct address_space_operations ext2_aops = {
 	.migratepage		= buffer_migrate_page,
 };
 
-struct address_space_operations ext2_aops_xip = {
+const struct address_space_operations ext2_aops_xip = {
 	.bmap			= ext2_bmap,
 	.get_xip_page		= ext2_get_xip_page,
 };
 
-struct address_space_operations ext2_nobh_aops = {
+const struct address_space_operations ext2_nobh_aops = {
 	.readpage		= ext2_readpage,
 	.readpages		= ext2_readpages,
 	.writepage		= ext2_nobh_writepage,

diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
@@ -1698,7 +1698,7 @@ static int ext3_journalled_set_page_dirty(struct page *page)
 	return __set_page_dirty_nobuffers(page);
 }
 
-static struct address_space_operations ext3_ordered_aops = {
+static const struct address_space_operations ext3_ordered_aops = {
 	.readpage	= ext3_readpage,
 	.readpages	= ext3_readpages,
 	.writepage	= ext3_ordered_writepage,
@@ -1712,7 +1712,7 @@ static struct address_space_operations ext3_ordered_aops = {
 	.migratepage	= buffer_migrate_page,
 };
 
-static struct address_space_operations ext3_writeback_aops = {
+static const struct address_space_operations ext3_writeback_aops = {
 	.readpage	= ext3_readpage,
 	.readpages	= ext3_readpages,
 	.writepage	= ext3_writeback_writepage,
@@ -1726,7 +1726,7 @@ static struct address_space_operations ext3_writeback_aops = {
 	.migratepage	= buffer_migrate_page,
 };
 
-static struct address_space_operations ext3_journalled_aops = {
+static const struct address_space_operations ext3_journalled_aops = {
 	.readpage	= ext3_readpage,
 	.readpages	= ext3_readpages,
 	.writepage	= ext3_journalled_writepage,

diff --git a/fs/fat/inode.c b/fs/fat/inode.c
@@ -196,7 +196,7 @@ static sector_t _fat_bmap(struct address_space *mapping, sector_t block)
 	return generic_block_bmap(mapping, block, fat_get_block);
 }
 
-static struct address_space_operations fat_aops = {
+static const struct address_space_operations fat_aops = {
 	.readpage	= fat_readpage,
 	.readpages	= fat_readpages,
 	.writepage	= fat_writepage,

diff --git a/fs/freevxfs/vxfs_immed.c b/fs/freevxfs/vxfs_immed.c
@@ -56,7 +56,7 @@ struct inode_operations vxfs_immed_symlink_iops = {
 /*
  * Adress space operations for immed files and directories.
  */
-struct address_space_operations vxfs_immed_aops = {
+const struct address_space_operations vxfs_immed_aops = {
 	.readpage =		vxfs_immed_readpage,
 };
 

diff --git a/fs/freevxfs/vxfs_inode.c b/fs/freevxfs/vxfs_inode.c
@@ -41,8 +41,8 @@
 #include "vxfs_extern.h"
 
 
-extern struct address_space_operations vxfs_aops;
-extern struct address_space_operations vxfs_immed_aops;
+extern const struct address_space_operations vxfs_aops;
+extern const struct address_space_operations vxfs_immed_aops;
 
 extern struct inode_operations vxfs_immed_symlink_iops;
 
@@ -295,7 +295,7 @@ vxfs_read_inode(struct inode *ip)
 {
 	struct super_block		*sbp = ip->i_sb;
 	struct vxfs_inode_info		*vip;
-	struct address_space_operations	*aops;
+	const struct address_space_operations	*aops;
 	ino_t				ino = ip->i_ino;
 
 	if (!(vip = __vxfs_iget(ino, VXFS_SBI(sbp)->vsi_ilist)))

diff --git a/fs/freevxfs/vxfs_subr.c b/fs/freevxfs/vxfs_subr.c
@@ -42,7 +42,7 @@
 static int		vxfs_readpage(struct file *, struct page *);
 static sector_t		vxfs_bmap(struct address_space *, sector_t);
 
-struct address_space_operations vxfs_aops = {
+const struct address_space_operations vxfs_aops = {
 	.readpage =		vxfs_readpage,
 	.bmap =			vxfs_bmap,
 	.sync_page =		block_sync_page,

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
@@ -770,7 +770,7 @@ static const struct file_operations fuse_direct_io_file_operations = {
 	/* no mmap and sendfile */
 };
 
-static struct address_space_operations fuse_file_aops  = {
+static const struct address_space_operations fuse_file_aops  = {
 	.readpage	= fuse_readpage,
 	.prepare_write	= fuse_prepare_write,
 	.commit_write	= fuse_commit_write,

diff --git a/fs/hfs/hfs_fs.h b/fs/hfs/hfs_fs.h
@@ -182,8 +182,8 @@ extern void hfs_file_truncate(struct inode *);
 extern int hfs_get_block(struct inode *, sector_t, struct buffer_head *, int);
 
 /* inode.c */
-extern struct address_space_operations hfs_aops;
-extern struct address_space_operations hfs_btree_aops;
+extern const struct address_space_operations hfs_aops;
+extern const struct address_space_operations hfs_btree_aops;
 
 extern struct inode *hfs_new_inode(struct inode *, struct qstr *, int);
 extern void hfs_inode_write_fork(struct inode *, struct hfs_extent *, __be32 *, __be32 *);

diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c
@@ -114,7 +114,7 @@ static int hfs_writepages(struct address_space *mapping,
 	return mpage_writepages(mapping, wbc, hfs_get_block);
 }
 
-struct address_space_operations hfs_btree_aops = {
+const struct address_space_operations hfs_btree_aops = {
 	.readpage	= hfs_readpage,
 	.writepage	= hfs_writepage,
 	.sync_page	= block_sync_page,
@@ -124,7 +124,7 @@ struct address_space_operations hfs_btree_aops = {
 	.releasepage	= hfs_releasepage,
 };
 
-struct address_space_operations hfs_aops = {
+const struct address_space_operations hfs_aops = {
 	.readpage	= hfs_readpage,
 	.writepage	= hfs_writepage,
 	.sync_page	= block_sync_page,

diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
@@ -323,8 +323,8 @@ int hfsplus_file_extend(struct inode *);
 void hfsplus_file_truncate(struct inode *);
 
 /* inode.c */
-extern struct address_space_operations hfsplus_aops;
-extern struct address_space_operations hfsplus_btree_aops;
+extern const struct address_space_operations hfsplus_aops;
+extern const struct address_space_operations hfsplus_btree_aops;
 
 void hfsplus_inode_read_fork(struct inode *, struct hfsplus_fork_raw *);
 void hfsplus_inode_write_fork(struct inode *, struct hfsplus_fork_raw *);