[PATCH] Make most file operations structs in fs/ const

This is a conversion to make the various file_operations structs in fs/
const.  Basically a regexp job, with a few manual fixups

The goal is both to increase correctness (harder to accidentally write to
shared datastructures) and reducing the false sharing of cachelines with
things that get dirty in .data (while .rodata is nicely read only and thus
cache clean)

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

122 files changed, 188 insertions, 188 deletions

diff --git a/fs/9p/v9fs_vfs.h b/fs/9p/v9fs_vfs.h
index 43c9f7d..f867b8d 100644
--- a/fs/9p/v9fs_vfs.h
+++ b/fs/9p/v9fs_vfs.h
@@ -39,8 +39,8 @@
 
 extern struct file_system_type v9fs_fs_type;
 extern struct address_space_operations v9fs_addr_operations;
-extern struct file_operations v9fs_file_operations;
-extern struct file_operations v9fs_dir_operations;
+extern const struct file_operations v9fs_file_operations;
+extern const struct file_operations v9fs_dir_operations;
 extern struct dentry_operations v9fs_dentry_operations;
 
 struct inode *v9fs_get_inode(struct super_block *sb, int mode);
diff --git a/fs/9p/vfs_dir.c b/fs/9p/vfs_dir.c
index 766f11f..e32d597 100644
--- a/fs/9p/vfs_dir.c
+++ b/fs/9p/vfs_dir.c
@@ -204,7 +204,7 @@ int v9fs_dir_release(struct inode *inode, struct file *filp)
 	return 0;
 }
 
-struct file_operations v9fs_dir_operations = {
+const struct file_operations v9fs_dir_operations = {
 	.read = generic_read_dir,
 	.readdir = v9fs_dir_readdir,
 	.open = v9fs_file_open,
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index 59e7441..083dcfc 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -266,7 +266,7 @@ v9fs_file_write(struct file *filp, const char __user * data,
 	return total;
 }
 
-struct file_operations v9fs_file_operations = {
+const struct file_operations v9fs_file_operations = {
 	.llseek = generic_file_llseek,
 	.read = v9fs_file_read,
 	.write = v9fs_file_write,
diff --git a/fs/adfs/adfs.h b/fs/adfs/adfs.h
index f6cd013..29217ff 100644
--- a/fs/adfs/adfs.h
+++ b/fs/adfs/adfs.h
@@ -85,7 +85,7 @@ void __adfs_error(struct super_block *sb, const char *function,
 
 /* dir_*.c */
 extern struct inode_operations adfs_dir_inode_operations;
-extern struct file_operations adfs_dir_operations;
+extern const struct file_operations adfs_dir_operations;
 extern struct dentry_operations adfs_dentry_operations;
 extern struct adfs_dir_ops adfs_f_dir_ops;
 extern struct adfs_dir_ops adfs_fplus_dir_ops;
@@ -94,7 +94,7 @@ extern int adfs_dir_update(struct super_block *sb, struct object_info *obj);
 
 /* file.c */
 extern struct inode_operations adfs_file_inode_operations;
-extern struct file_operations adfs_file_operations;
+extern const struct file_operations adfs_file_operations;
 
 static inline __u32 signed_asl(__u32 val, signed int shift)
 {
diff --git a/fs/adfs/dir.c b/fs/adfs/dir.c
index 0b4c3a0..7b075fc 100644
--- a/fs/adfs/dir.c
+++ b/fs/adfs/dir.c
@@ -196,7 +196,7 @@ out:
 	return ret;
 }
 
-struct file_operations adfs_dir_operations = {
+const struct file_operations adfs_dir_operations = {
 	.read		= generic_read_dir,
 	.readdir	= adfs_readdir,
 	.fsync		= file_fsync,
diff --git a/fs/adfs/file.c b/fs/adfs/file.c
index 6af1088..1014b9f 100644
--- a/fs/adfs/file.c
+++ b/fs/adfs/file.c
@@ -25,7 +25,7 @@
 
 #include "adfs.h"
 
-struct file_operations adfs_file_operations = {
+const struct file_operations adfs_file_operations = {
 	.llseek		= generic_file_llseek,
 	.read		= generic_file_read,
 	.mmap		= generic_file_mmap,
diff --git a/fs/affs/affs.h b/fs/affs/affs.h
index 0c6799f..a43a876 100644
--- a/fs/affs/affs.h
+++ b/fs/affs/affs.h
@@ -192,9 +192,9 @@ extern void   affs_dir_truncate(struct inode *);
 extern struct inode_operations	 affs_file_inode_operations;
 extern struct inode_operations	 affs_dir_inode_operations;
 extern struct inode_operations   affs_symlink_inode_operations;
-extern struct file_operations	 affs_file_operations;
-extern struct file_operations	 affs_file_operations_ofs;
-extern struct file_operations	 affs_dir_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;
diff --git a/fs/affs/dir.c b/fs/affs/dir.c
index 548efd0..5d9649f 100644
--- a/fs/affs/dir.c
+++ b/fs/affs/dir.c
@@ -17,7 +17,7 @@
 
 static int affs_readdir(struct file *, void *, filldir_t);
 
-struct file_operations affs_dir_operations = {
+const struct file_operations affs_dir_operations = {
 	.read		= generic_read_dir,
 	.readdir	= affs_readdir,
 	.fsync		= file_fsync,
diff --git a/fs/affs/file.c b/fs/affs/file.c
index f72fb77..7076262 100644
--- a/fs/affs/file.c
+++ b/fs/affs/file.c
@@ -25,7 +25,7 @@ static struct buffer_head *affs_get_extblock_slow(struct inode *inode, u32 ext);
 static int affs_file_open(struct inode *inode, struct file *filp);
 static int affs_file_release(struct inode *inode, struct file *filp);
 
-struct file_operations affs_file_operations = {
+const struct file_operations affs_file_operations = {
 	.llseek		= generic_file_llseek,
 	.read		= generic_file_read,
 	.write		= generic_file_write,
diff --git a/fs/afs/dir.c b/fs/afs/dir.c
index 5c61c24..a6dff6a 100644
--- a/fs/afs/dir.c
+++ b/fs/afs/dir.c
@@ -32,7 +32,7 @@ static int afs_d_delete(struct dentry *dentry);
 static int afs_dir_lookup_filldir(void *_cookie, const char *name, int nlen,
 				  loff_t fpos, ino_t ino, unsigned dtype);
 
-struct file_operations afs_dir_file_operations = {
+const struct file_operations afs_dir_file_operations = {
 	.open		= afs_dir_open,
 	.readdir	= afs_dir_readdir,
 };
diff --git a/fs/afs/internal.h b/fs/afs/internal.h
index ab8f87c..72febdf 100644
--- a/fs/afs/internal.h
+++ b/fs/afs/internal.h
@@ -64,7 +64,7 @@ extern struct cachefs_index_def afs_cache_cell_index_def;
  * dir.c
  */
 extern struct inode_operations afs_dir_inode_operations;
-extern struct file_operations afs_dir_file_operations;
+extern const struct file_operations afs_dir_file_operations;
 
 /*
  * file.c
@@ -105,7 +105,7 @@ extern struct cachefs_netfs afs_cache_netfs;
  * mntpt.c
  */
 extern struct inode_operations afs_mntpt_inode_operations;
-extern struct file_operations afs_mntpt_file_operations;
+extern const struct file_operations afs_mntpt_file_operations;
 extern struct afs_timer afs_mntpt_expiry_timer;
 extern struct afs_timer_ops afs_mntpt_expiry_timer_ops;
 extern unsigned long afs_mntpt_expiry_timeout;
diff --git a/fs/afs/mntpt.c b/fs/afs/mntpt.c
index 31ee065..4e6eeb5 100644
--- a/fs/afs/mntpt.c
+++ b/fs/afs/mntpt.c
@@ -32,7 +32,7 @@ static struct dentry *afs_mntpt_lookup(struct inode *dir,
 static int afs_mntpt_open(struct inode *inode, struct file *file);
 static void *afs_mntpt_follow_link(struct dentry *dentry, struct nameidata *nd);
 
-struct file_operations afs_mntpt_file_operations = {
+const struct file_operations afs_mntpt_file_operations = {
 	.open		= afs_mntpt_open,
 };
 
diff --git a/fs/afs/proc.c b/fs/afs/proc.c
index 9c81b8f..101d21b 100644
--- a/fs/afs/proc.c
+++ b/fs/afs/proc.c
@@ -37,7 +37,7 @@ static struct seq_operations afs_proc_cells_ops = {
 	.show	= afs_proc_cells_show,
 };
 
-static struct file_operations afs_proc_cells_fops = {
+static const struct file_operations afs_proc_cells_fops = {
 	.open		= afs_proc_cells_open,
 	.read		= seq_read,
 	.write		= afs_proc_cells_write,
@@ -53,7 +53,7 @@ static ssize_t afs_proc_rootcell_write(struct file *file,
 				       const char __user *buf,
 				       size_t size, loff_t *_pos);
 
-static struct file_operations afs_proc_rootcell_fops = {
+static const struct file_operations afs_proc_rootcell_fops = {
 	.open		= afs_proc_rootcell_open,
 	.read		= afs_proc_rootcell_read,
 	.write		= afs_proc_rootcell_write,
@@ -77,7 +77,7 @@ static struct seq_operations afs_proc_cell_volumes_ops = {
 	.show	= afs_proc_cell_volumes_show,
 };
 
-static struct file_operations afs_proc_cell_volumes_fops = {
+static const struct file_operations afs_proc_cell_volumes_fops = {
 	.open		= afs_proc_cell_volumes_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,
@@ -101,7 +101,7 @@ static struct seq_operations afs_proc_cell_vlservers_ops = {
 	.show	= afs_proc_cell_vlservers_show,
 };
 
-static struct file_operations afs_proc_cell_vlservers_fops = {
+static const struct file_operations afs_proc_cell_vlservers_fops = {
 	.open		= afs_proc_cell_vlservers_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,
@@ -124,7 +124,7 @@ static struct seq_operations afs_proc_cell_servers_ops = {
 	.show	= afs_proc_cell_servers_show,
 };
 
-static struct file_operations afs_proc_cell_servers_fops = {
+static const struct file_operations afs_proc_cell_servers_fops = {
 	.open		= afs_proc_cell_servers_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,
diff --git a/fs/autofs/autofs_i.h b/fs/autofs/autofs_i.h
index 990c28d..a62327f 100644
--- a/fs/autofs/autofs_i.h
+++ b/fs/autofs/autofs_i.h
@@ -146,7 +146,7 @@ struct autofs_dir_ent *autofs_expire(struct super_block *,struct autofs_sb_info
 
 extern struct inode_operations autofs_root_inode_operations;
 extern struct inode_operations autofs_symlink_inode_operations;
-extern struct file_operations autofs_root_operations;
+extern const struct file_operations autofs_root_operations;
 
 /* Initializing function */
 
diff --git a/fs/autofs/root.c b/fs/autofs/root.c
index 870e2cf3..9cac08d 100644
--- a/fs/autofs/root.c
+++ b/fs/autofs/root.c
@@ -26,7 +26,7 @@ static int autofs_root_rmdir(struct inode *,struct dentry *);
 static int autofs_root_mkdir(struct inode *,struct dentry *,int);
 static int autofs_root_ioctl(struct inode *, struct file *,unsigned int,unsigned long);
 
-struct file_operations autofs_root_operations = {
+const struct file_operations autofs_root_operations = {
 	.read		= generic_read_dir,
 	.readdir	= autofs_root_readdir,
 	.ioctl		= autofs_root_ioctl,
diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h
index c70204a..57c4903 100644
--- a/fs/autofs4/autofs_i.h
+++ b/fs/autofs4/autofs_i.h
@@ -176,8 +176,8 @@ extern struct inode_operations autofs4_dir_inode_operations;
 extern struct inode_operations autofs4_root_inode_operations;
 extern struct inode_operations autofs4_indirect_root_inode_operations;
 extern struct inode_operations autofs4_direct_root_inode_operations;
-extern struct file_operations autofs4_dir_operations;
-extern struct file_operations autofs4_root_operations;
+extern const struct file_operations autofs4_dir_operations;
+extern const struct file_operations autofs4_root_operations;
 
 /* Initializing function */
 
diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index c8fe43a..84e030c 100644
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -32,7 +32,7 @@ static int autofs4_root_readdir(struct file * filp, void * dirent, filldir_t fil
 static struct dentry *autofs4_lookup(struct inode *,struct dentry *, struct nameidata *);
 static void *autofs4_follow_link(struct dentry *, struct nameidata *);
 
-struct file_operations autofs4_root_operations = {
+const struct file_operations autofs4_root_operations = {
 	.open		= dcache_dir_open,
 	.release	= dcache_dir_close,
 	.read		= generic_read_dir,
@@ -40,7 +40,7 @@ struct file_operations autofs4_root_operations = {
 	.ioctl		= autofs4_root_ioctl,
 };
 
-struct file_operations autofs4_dir_operations = {
+const struct file_operations autofs4_dir_operations = {
 	.open		= autofs4_dir_open,
 	.release	= autofs4_dir_close,
 	.read		= generic_read_dir,
diff --git a/fs/bad_inode.c b/fs/bad_inode.c
index e172180..80599ae 100644
--- a/fs/bad_inode.c
+++ b/fs/bad_inode.c
@@ -22,7 +22,7 @@ static int return_EIO(void)
 
 #define EIO_ERROR ((void *) (return_EIO))
 
-static struct file_operations bad_file_ops =
+static const struct file_operations bad_file_ops =
 {
 	.llseek		= EIO_ERROR,
 	.aio_read	= EIO_ERROR,
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index 044a595..68ebd10 100644
--- a/fs/befs/linuxvfs.c
+++ b/fs/befs/linuxvfs.c
@@ -64,7 +64,7 @@ static const struct super_operations befs_sops = {
 /* slab cache for befs_inode_info objects */
 static kmem_cache_t *befs_inode_cachep;
 
-static struct file_operations befs_dir_operations = {
+static const struct file_operations befs_dir_operations = {
 	.read		= generic_read_dir,
 	.readdir	= befs_readdir,
 };
diff --git a/fs/bfs/bfs.h b/fs/bfs/bfs.h
index 1fbc53f..9d79100 100644
--- a/fs/bfs/bfs.h
+++ b/fs/bfs/bfs.h
@@ -49,11 +49,11 @@ static inline struct bfs_inode_info *BFS_I(struct inode *inode)
 
 /* file.c */
 extern struct inode_operations bfs_file_inops;
-extern struct file_operations bfs_file_operations;
+extern const struct file_operations bfs_file_operations;
 extern struct address_space_operations bfs_aops;
 
 /* dir.c */
 extern struct inode_operations bfs_dir_inops;
-extern struct file_operations bfs_dir_operations;
+extern const struct file_operations bfs_dir_operations;
 
 #endif /* _FS_BFS_BFS_H */
diff --git a/fs/bfs/dir.c b/fs/bfs/dir.c
index 5af928f..26fad96 100644
--- a/fs/bfs/dir.c
+++ b/fs/bfs/dir.c
@@ -70,7 +70,7 @@ static int bfs_readdir(struct file * f, void * dirent, filldir_t filldir)
 	return 0;	
 }
 
-struct file_operations bfs_dir_operations = {
+const struct file_operations bfs_dir_operations = {
 	.read		= generic_read_dir,
 	.readdir	= bfs_readdir,
 	.fsync		= file_fsync,
diff --git a/fs/bfs/file.c b/fs/bfs/file.c
index 807723b..d83cd74 100644
--- a/fs/bfs/file.c
+++ b/fs/bfs/file.c
@@ -17,7 +17,7 @@
 #define dprintf(x...)
 #endif
 
-struct file_operations bfs_file_operations = {
+const struct file_operations bfs_file_operations = {
 	.llseek 	= generic_file_llseek,
 	.read		= generic_file_read,
 	.write		= generic_file_write,
diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
index 6a7b730..d73d755 100644
--- a/fs/binfmt_misc.c
+++ b/fs/binfmt_misc.c
@@ -600,7 +600,7 @@ static ssize_t bm_entry_write(struct file *file, const char __user *buffer,
 	return count;
 }
 
-static struct file_operations bm_entry_operations = {
+static const struct file_operations bm_entry_operations = {
 	.read		= bm_entry_read,
 	.write		= bm_entry_write,
 };
@@ -668,7 +668,7 @@ out:
 	return count;
 }
 
-static struct file_operations bm_register_operations = {
+static const struct file_operations bm_register_operations = {
 	.write		= bm_register_write,
 };
 
@@ -715,7 +715,7 @@ static ssize_t bm_status_write(struct file * file, const char __user * buffer,
 	return count;
 }
 
-static struct file_operations bm_status_operations = {
+static const struct file_operations bm_status_operations = {
 	.read		= bm_status_read,
 	.write		= bm_status_write,
 };
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 17c7618..af88c43 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -1087,7 +1087,7 @@ struct address_space_operations def_blk_aops = {
 	.direct_IO	= blkdev_direct_IO,
 };
 
-struct file_operations def_blk_fops = {
+const struct file_operations def_blk_fops = {
 	.open		= blkdev_open,
 	.release	= blkdev_close,
 	.llseek		= block_llseek,
diff --git a/fs/char_dev.c b/fs/char_dev.c
index b53dffa..4e1b849 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -406,7 +406,7 @@ static void cdev_purge(struct cdev *cdev)
  * is contain the open that then fills in the correct operations
  * depending on the special file...
  */
-struct file_operations def_chr_fops = {
+const struct file_operations def_chr_fops = {
 	.open = chrdev_open,
 };
 
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 6b99b51..4bbc544 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -583,7 +583,7 @@ struct inode_operations cifs_symlink_inode_ops = {
 #endif 
 };
 
-struct file_operations cifs_file_ops = {
+const struct file_operations cifs_file_ops = {
 	.read = do_sync_read,
 	.write = do_sync_write,
 	.readv = generic_file_readv,
@@ -607,7 +607,7 @@ struct file_operations cifs_file_ops = {
 #endif /* CONFIG_CIFS_EXPERIMENTAL */
 };
 
-struct file_operations cifs_file_direct_ops = {
+const struct file_operations cifs_file_direct_ops = {
 	/* no mmap, no aio, no readv - 
 	   BB reevaluate whether they can be done with directio, no cache */
 	.read = cifs_user_read,
@@ -626,7 +626,7 @@ struct file_operations cifs_file_direct_ops = {
 	.dir_notify = cifs_dir_notify,
 #endif /* CONFIG_CIFS_EXPERIMENTAL */
 };
-struct file_operations cifs_file_nobrl_ops = {
+const struct file_operations cifs_file_nobrl_ops = {
 	.read = do_sync_read,
 	.write = do_sync_write,
 	.readv = generic_file_readv,
@@ -649,7 +649,7 @@ struct file_operations cifs_file_nobrl_ops = {
 #endif /* CONFIG_CIFS_EXPERIMENTAL */
 };
 
-struct file_operations cifs_file_direct_nobrl_ops = {
+const struct file_operations cifs_file_direct_nobrl_ops = {
 	/* no mmap, no aio, no readv - 
 	   BB reevaluate whether they can be done with directio, no cache */
 	.read = cifs_user_read,
@@ -668,7 +668,7 @@ struct file_operations cifs_file_direct_nobrl_ops = {
 #endif /* CONFIG_CIFS_EXPERIMENTAL */
 };
 
-struct file_operations cifs_dir_ops = {
+const struct file_operations cifs_dir_ops = {
 	.readdir = cifs_readdir,
 	.release = cifs_closedir,
 	.read    = generic_read_dir,
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index 821a8eb..74f405a 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -61,10 +61,10 @@ extern struct inode_operations cifs_file_inode_ops;
 extern struct inode_operations cifs_symlink_inode_ops;
 
 /* Functions related to files and directories */
-extern struct file_operations cifs_file_ops;
-extern struct file_operations cifs_file_direct_ops; /* if directio mount */
-extern struct file_operations cifs_file_nobrl_ops;
-extern struct file_operations cifs_file_direct_nobrl_ops; /* if directio mount */
+extern const struct file_operations cifs_file_ops;
+extern const struct file_operations cifs_file_direct_ops; /* if directio mount */
+extern const struct file_operations cifs_file_nobrl_ops;
+extern const struct file_operations cifs_file_direct_nobrl_ops; /* if directio mount */
 extern int cifs_open(struct inode *inode, struct file *file);
 extern int cifs_close(struct inode *inode, struct file *file);
 extern int cifs_closedir(struct inode *inode, struct file *file);
@@ -76,7 +76,7 @@ extern int cifs_lock(struct file *, int, struct file_lock *);
 extern int cifs_fsync(struct file *, struct dentry *, int);
 extern int cifs_flush(struct file *);
 extern int cifs_file_mmap(struct file * , struct vm_area_struct *);
-extern struct file_operations cifs_dir_ops;
+extern const struct file_operations cifs_dir_ops;
 extern int cifs_dir_open(struct inode *inode, struct file *file);
 extern int cifs_readdir(struct file *file, void *direntry, filldir_t filldir);
 extern int cifs_dir_notify(struct file *, unsigned long arg);
diff --git a/fs/coda/dir.c b/fs/coda/dir.c
index 54f76de..71f2ea6 100644
--- a/fs/coda/dir.c
+++ b/fs/coda/dir.c
@@ -82,7 +82,7 @@ struct inode_operations coda_dir_inode_operations =
 	.setattr	= coda_setattr,
 };
 
-struct file_operations coda_dir_operations = {
+const struct file_operations coda_dir_operations = {
 	.llseek		= generic_file_llseek,
 	.read		= generic_read_dir,
 	.readdir	= coda_readdir,
diff --git a/fs/coda/file.c b/fs/coda/file.c
index 146a991..7c26424 100644
--- a/fs/coda/file.c
+++ b/fs/coda/file.c
@@ -288,7 +288,7 @@ int coda_fsync(struct file *coda_file, struct dentry *coda_dentry, int datasync)
 	return err;
 }
 
-struct file_operations coda_file_operations = {
+const struct file_operations coda_file_operations = {
 	.llseek		= generic_file_llseek,
 	.read		= coda_file_read,
 	.write		= coda_file_write,
diff --git a/fs/coda/pioctl.c b/fs/coda/pioctl.c
index 1277149..214822b 100644
--- a/fs/coda/pioctl.c
+++ b/fs/coda/pioctl.c
@@ -36,7 +36,7 @@ struct inode_operations coda_ioctl_inode_operations =
 	.setattr	= coda_setattr,
 };
 
-struct file_operations coda_ioctl_operations = {
+const struct file_operations coda_ioctl_operations = {
 	.owner		= THIS_MODULE,
 	.ioctl		= coda_pioctl,
 };
diff --git a/fs/coda/psdev.c b/fs/coda/psdev.c
index 98c74fe..6c6771d 100644
--- a/fs/coda/psdev.c
+++ b/fs/coda/psdev.c
@@ -342,7 +342,7 @@ static int coda_psdev_release(struct inode * inode, struct file * file)
 }
 
 
-static struct file_operations coda_psdev_fops = {
+static const struct file_operations coda_psdev_fops = {
 	.owner		= THIS_MODULE,
 	.read		= coda_psdev_read,
 	.write		= coda_psdev_write,
diff --git a/fs/configfs/configfs_internal.h b/fs/configfs/configfs_internal.h
index f70e469..3f4ff7a 100644
--- a/fs/configfs/configfs_internal.h
+++ b/fs/configfs/configfs_internal.h
@@ -72,9 +72,9 @@ extern void configfs_release_fs(void);
 
 extern struct rw_semaphore configfs_rename_sem;
 extern struct super_block * configfs_sb;
-extern struct file_operations configfs_dir_operations;
-extern struct file_operations configfs_file_operations;
-extern struct file_operations bin_fops;
+extern const struct file_operations configfs_dir_operations;
+extern const struct file_operations configfs_file_operations;
+extern const struct file_operations bin_fops;
 extern struct inode_operations configfs_dir_inode_operations;
 extern struct inode_operations configfs_symlink_inode_operations;
 
diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
index ca60e3a..8ed9b06 100644
--- a/fs/configfs/dir.c
+++ b/fs/configfs/dir.c
@@ -1027,7 +1027,7 @@ static loff_t configfs_dir_lseek(struct file * file, loff_t offset, int origin)
 	return offset;
 }
 
-struct file_operations configfs_dir_operations = {
+const struct file_operations configfs_dir_operations = {
 	.open		= configfs_dir_open,
 	.release	= configfs_dir_close,
 	.llseek		= configfs_dir_lseek,
diff --git a/fs/configfs/file.c b/fs/configfs/file.c
index 3921920..f499803 100644
--- a/fs/configfs/file.c
+++ b/fs/configfs/file.c
@@ -322,7 +322,7 @@ static int configfs_release(struct inode * inode, struct file * filp)
 	return 0;
 }
 
-struct file_operations configfs_file_operations = {
+const struct file_operations configfs_file_operations = {
 	.read		= configfs_read_file,
 	.write		= configfs_write_file,
 	.llseek		= generic_file_llseek,
diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c
index acc1b2c..9efcc3a 100644
--- a/fs/cramfs/inode.c
+++ b/fs/cramfs/inode.c
@@ -29,7 +29,7 @@
 
 static struct super_operations cramfs_ops;
 static struct inode_operations cramfs_dir_inode_operations;
-static struct file_operations cramfs_directory_operations;
+static const struct file_operations cramfs_directory_operations;
 static struct address_space_operations cramfs_aops;
 
 static DEFINE_MUTEX(read_mutex);
@@ -512,7 +512,7 @@ static struct address_space_operations cramfs_aops = {
 /*
  * A directory can only readdir
  */
-static struct file_operations cramfs_directory_operations = {
+static const struct file_operations cramfs_directory_operations = {
 	.llseek		= generic_file_llseek,
 	.read		= generic_read_dir,
 	.readdir	= cramfs_readdir,
diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c
index 40c4fc9..66a5054 100644
--- a/fs/debugfs/file.c
+++ b/fs/debugfs/file.c
@@ -39,7 +39,7 @@ static int default_open(struct inode *inode, struct file *file)
 	return 0;
 }
 
-struct file_operations debugfs_file_operations = {
+const struct file_operations debugfs_file_operations = {
 	.read =		default_read_file,
 	.write =	default_write_file,
 	.open =		default_open,
@@ -213,7 +213,7 @@ static ssize_t write_file_bool(struct file *file, const char __user *user_buf,
 	return count;
 }
 
-static struct file_operations fops_bool = {
+static const struct file_operations fops_bool = {
 	.read =		read_file_bool,
 	.write =	write_file_bool,
 	.open =		default_open,
diff --git a/fs/devfs/base.c b/fs/devfs/base.c
index b621521..52f5059 100644
--- a/fs/devfs/base.c
+++ b/fs/devfs/base.c
@@ -856,14 +856,14 @@ static int devfsd_close(struct inode *inode, struct file *file);
 #ifdef CONFIG_DEVFS_DEBUG
 static ssize_t stat_read(struct file *file, char __user *buf, size_t len,
 			 loff_t * ppos);
-static struct file_operations stat_fops = {
+static const struct file_operations stat_fops = {
 	.open = nonseekable_open,
 	.read = stat_read,
 };
 #endif
 
 /*  Devfs daemon file operations  */
-static struct file_operations devfsd_fops = {
+static const struct file_operations devfsd_fops = {
 	.open = nonseekable_open,
 	.read = devfsd_read,
 	.ioctl = devfsd_ioctl,
@@ -1842,8 +1842,8 @@ static int try_modload(struct devfs_entry *parent, struct fs_info *fs_info,
 
 static struct inode_operations devfs_iops;
 static struct inode_operations devfs_dir_iops;
-static struct file_operations devfs_fops;
-static struct file_operations devfs_dir_fops;
+static const struct file_operations devfs_fops;
+static const struct file_operations devfs_dir_fops;
 static struct inode_operations devfs_symlink_iops;
 
 static int devfs_notify_change(struct dentry *dentry, struct iattr *iattr)
@@ -2061,11 +2061,11 @@ static int devfs_open(struct inode *inode, struct file *file)
 	return err;
 }				/*  End Function devfs_open  */
 
-static struct file_operations devfs_fops = {
+static const struct file_operations devfs_fops = {
 	.open = devfs_open,
 };
 
-static struct file_operations devfs_dir_fops = {
+static const struct file_operations devfs_dir_fops = {
 	.read = generic_read_dir,
 	.readdir = devfs_readdir,
 };
diff --git a/fs/efs/dir.c b/fs/efs/dir.c
index 777c614..17f5b2d 100644
--- a/fs/efs/dir.c
+++ b/fs/efs/dir.c
@@ -10,7 +10,7 @@
 
 static int efs_readdir(struct file *, void *, filldir_t);
 
-struct file_operations efs_dir_operations = {
+const struct file_operations efs_dir_operations = {
 	.read		= generic_read_dir,
 	.readdir	= efs_readdir,
 };
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index e067a06..242fe1a 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -290,7 +290,7 @@ static kmem_cache_t *pwq_cache __read_mostly;
 static struct vfsmount *eventpoll_mnt __read_mostly;
 
 /* File callbacks that implement the eventpoll file behaviour */
-static struct file_operations eventpoll_fops = {
+static const struct file_operations eventpoll_fops = {
 	.release	= ep_eventpoll_close,
 	.poll		= ep_eventpoll_poll
 };
diff --git a/fs/ext2/dir.c b/fs/ext2/dir.c
index 0165388..d672aa9 100644
--- a/fs/ext2/dir.c
+++ b/fs/ext2/dir.c
@@ -658,7 +658,7 @@ not_empty:
 	return 0;
 }
 
-struct file_operations ext2_dir_operations = {
+const struct file_operations ext2_dir_operations = {
 	.llseek		= generic_file_llseek,
 	.read		= generic_read_dir,
 	.readdir	= ext2_readdir,
diff --git a/fs/ext2/ext2.h b/fs/ext2/ext2.h
index 11035ac..9f74a62 100644
--- a/fs/ext2/ext2.h
+++ b/fs/ext2/ext2.h
@@ -154,12 +154,12 @@ extern void ext2_write_super (struct super_block *);
  */
 
 /* dir.c */
-extern struct file_operations ext2_dir_operations;
+extern const struct file_operations ext2_dir_operations;
 
 /* file.c */
 extern struct inode_operations ext2_file_inode_operations;
-extern struct file_operations ext2_file_operations;
-extern struct file_operations ext2_xip_file_operations;
+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;
diff --git a/fs/ext2/file.c b/fs/ext2/file.c
index a484412..509ccec 100644
--- a/fs/ext2/file.c
+++ b/fs/ext2/file.c
@@ -39,7 +39,7 @@ static int ext2_release_file (struct inode * inode, struct file * filp)
  * We have mostly NULL's here: the current defaults are ok for
  * the ext2 filesystem.
  */
-struct file_operations ext2_file_operations = {
+const struct file_operations ext2_file_operations = {
 	.llseek		= generic_file_llseek,
 	.read		= generic_file_read,
 	.write		= generic_file_write,
@@ -56,7 +56,7 @@ struct file_operations ext2_file_operations = {
 };
 
 #ifdef CONFIG_EXT2_FS_XIP
-struct file_operations ext2_xip_file_operations = {
+const struct file_operations ext2_xip_file_operations = {
 	.llseek		= generic_file_llseek,
 	.read		= xip_file_read,
 	.write		= xip_file_write,
diff --git a/fs/ext3/dir.c b/fs/ext3/dir.c
index 38bd3f6..f37528e 100644
--- a/fs/ext3/dir.c
+++ b/fs/ext3/dir.c
@@ -39,7 +39,7 @@ static int ext3_dx_readdir(struct file * filp,
 static int ext3_release_dir (struct inode * inode,
 				struct file * filp);
 
-struct file_operations ext3_dir_operations = {
+const struct file_operations ext3_dir_operations = {
 	.llseek		= generic_file_llseek,
 	.read		= generic_read_dir,
 	.readdir	= ext3_readdir,		/* we take BKL. needed?*/
diff --git a/fs/ext3/file.c b/fs/ext3/file.c
index 59098ea..783a796 100644
--- a/fs/ext3/file.c
+++ b/fs/ext3/file.c
@@ -105,7 +105,7 @@ force_commit:
 	return ret;
 }
 
-struct file_operations ext3_file_operations = {
+const struct file_operations ext3_file_operations = {
 	.llseek		= generic_file_llseek,
 	.read		= do_sync_read,
 	.write		= do_sync_write,
diff --git a/fs/fat/dir.c b/fs/fat/dir.c
index 4095bc1..698b85b 100644
--- a/fs/fat/dir.c
+++ b/fs/fat/dir.c
@@ -741,7 +741,7 @@ static int fat_dir_ioctl(struct inode * inode, struct file * filp,
 	return ret;
 }
 
-struct file_operations fat_dir_operations = {
+const struct file_operations fat_dir_operations = {
 	.read		= generic_read_dir,
 	.readdir	= fat_readdir,
 	.ioctl		= fat_dir_ioctl,
diff --git a/fs/fat/file.c b/fs/fat/file.c
index 88aa1ae..1ee2523 100644
--- a/fs/fat/file.c
+++ b/fs/fat/file.c
@@ -112,7 +112,7 @@ int fat_generic_ioctl(struct inode *inode, struct file *filp,
 	}
 }
 
-struct file_operations fat_file_operations = {
+const struct file_operations fat_file_operations = {
 	.llseek		= generic_file_llseek,
 	.read		= do_sync_read,
 	.write		= do_sync_write,
diff --git a/fs/fifo.c b/fs/fifo.c
index d13fcd3..889f722 100644
--- a/fs/fifo.c
+++ b/fs/fifo.c
@@ -145,6 +145,6 @@ err_nocleanup:
  * is contain the open that then fills in the correct operations
  * depending on the access mode of the file...
  */
-struct file_operations def_fifo_fops = {
+const struct file_operations def_fifo_fops = {
 	.open		= fifo_open,	/* will set read or write pipe_fops */
 };
diff --git a/fs/freevxfs/vxfs_extern.h b/fs/freevxfs/vxfs_extern.h
index 927acf7..1cf1fe8 100644
--- a/fs/freevxfs/vxfs_extern.h
+++ b/fs/freevxfs/vxfs_extern.h
@@ -63,7 +63,7 @@ extern void			vxfs_clear_inode(struct inode *);
 
 /* vxfs_lookup.c */
 extern struct inode_operations	vxfs_dir_inode_ops;
-extern struct file_operations	vxfs_dir_operations;
+extern const struct file_operations	vxfs_dir_operations;
 
 /* vxfs_olt.c */
 extern int			vxfs_read_olt(struct super_block *, u_long);
diff --git a/fs/freevxfs/vxfs_lookup.c b/fs/freevxfs/vxfs_lookup.c
index 554eb45..29cce45 100644
--- a/fs/freevxfs/vxfs_lookup.c
+++ b/fs/freevxfs/vxfs_lookup.c
@@ -56,7 +56,7 @@ struct inode_operations vxfs_dir_inode_ops = {
 	.lookup =		vxfs_lookup,
 };
 
-struct file_operations vxfs_dir_operations = {
+const struct file_operations vxfs_dir_operations = {
 	.readdir =		vxfs_readdir,
 };
 
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 0c9a2ee..23d1f52 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -922,7 +922,7 @@ static int fuse_dev_release(struct inode *inode, struct file *file)
 	return 0;
 }
 
-struct file_operations fuse_dev_operations = {
+const struct file_operations fuse_dev_operations = {
 	.owner		= THIS_MODULE,
 	.llseek		= no_llseek,
 	.read		= fuse_dev_read,
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index c72a8a9..256355b 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1170,7 +1170,7 @@ static struct inode_operations fuse_dir_inode_operations = {
 	.removexattr	= fuse_removexattr,
 };
 
-static struct file_operations fuse_dir_operations = {
+static const struct file_operations fuse_dir_operations = {
 	.llseek		= generic_file_llseek,
 	.read		= generic_read_dir,
 	.readdir	= fuse_readdir,
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 6f05379..975f269 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -12,7 +12,7 @@
 #include <linux/slab.h>
 #include <linux/kernel.h>
 
-static struct file_operations fuse_direct_io_file_operations;
+static const struct file_operations fuse_direct_io_file_operations;
 
 static int fuse_send_open(struct inode *inode, struct file *file, int isdir,
 			  struct fuse_open_out *outargp)
@@ -611,7 +611,7 @@ static int fuse_set_page_dirty(struct page *page)
 	return 0;
 }
 
-static struct file_operations fuse_file_operations = {
+static const struct file_operations fuse_file_operations = {
 	.llseek		= generic_file_llseek,
 	.read		= generic_file_read,
 	.write		= generic_file_write,
@@ -623,7 +623,7 @@ static struct file_operations fuse_file_operations = {
 	.sendfile	= generic_file_sendfile,
 };
 
-static struct file_operations fuse_direct_io_file_operations = {
+static const struct file_operations fuse_direct_io_file_operations = {
 	.llseek		= generic_file_llseek,
 	.read		= fuse_direct_read,
 	.write		= fuse_direct_write,
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 4a83adf..a16a04f 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -346,7 +346,7 @@ static inline u64 get_node_id(struct inode *inode)
 }
 
 /** Device operations */
-extern struct file_operations fuse_dev_operations;
+extern const struct file_operations fuse_dev_operations;
 
 /**
  * This is the single global spinlock which protects FUSE's structures
diff --git a/fs/hfs/dir.c b/fs/hfs/dir.c
index 534e5a7..7cd8cc0 100644
--- a/fs/hfs/dir.c
+++ b/fs/hfs/dir.c
@@ -313,7 +313,7 @@ static int hfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	return res;
 }
 
-struct file_operations hfs_dir_operations = {
+const struct file_operations hfs_dir_operations = {
 	.read		= generic_read_dir,
 	.readdir	= hfs_readdir,
 	.llseek		= generic_file_llseek,
diff --git a/fs/hfs/hfs_fs.h b/fs/hfs/hfs_fs.h
index 18ce47a..3ed8663 100644
--- a/fs/hfs/hfs_fs.h
+++ b/fs/hfs/hfs_fs.h
@@ -169,7 +169,7 @@ extern int hfs_cat_move(u32, struct inode *, struct qstr *,
 extern void hfs_cat_build_key(struct super_block *, btree_key *, u32, struct qstr *);
 
 /* dir.c */
-extern struct file_operations hfs_dir_operations;
+extern const struct file_operations hfs_dir_operations;
 extern struct inode_operations hfs_dir_inode_operations;
 
 /* extent.c */
diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c
index 2c56470..2d4ced2 100644
--- a/fs/hfs/inode.c
+++ b/fs/hfs/inode.c
@@ -17,7 +17,7 @@
 #include "hfs_fs.h"
 #include "btree.h"
 
-static struct file_operations hfs_file_operations;
+static const struct file_operations hfs_file_operations;
 static struct inode_operations hfs_file_inode_operations;
 
 /*================ Variable-like macros ================*/
@@ -601,7 +601,7 @@ int hfs_inode_setattr(struct dentry *dentry, struct iattr * attr)
 }
 
 
-static struct file_operations hfs_file_operations = {
+static const struct file_operations hfs_file_operations = {
 	.llseek		= generic_file_llseek,
 	.read		= generic_file_read,
 	.write		= generic_file_write,
diff --git a/fs/hfsplus/dir.c b/fs/hfsplus/dir.c
index 01a6fe3..1f9ece0 100644
--- a/fs/hfsplus/dir.c
+++ b/fs/hfsplus/dir.c
@@ -483,7 +483,7 @@ struct inode_operations hfsplus_dir_inode_operations = {
 	.rename		= hfsplus_rename,
 };
 
-struct file_operations hfsplus_dir_operations = {
+const struct file_operations hfsplus_dir_operations = {
 	.read		= generic_read_dir,
 	.readdir	= hfsplus_readdir,
 	.ioctl          = hfsplus_ioctl,
diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
index 9fbe4d2..acf66db 100644
--- a/fs/hfsplus/inode.c
+++ b/fs/hfsplus/inode.c
@@ -280,7 +280,7 @@ static struct inode_operations hfsplus_file_inode_operations = {
 	.listxattr	= hfsplus_listxattr,
 };
 
-static struct file_operations hfsplus_file_operations = {
+static const struct file_operations hfsplus_file_operations = {
 	.llseek 	= generic_file_llseek,
 	.read		= generic_file_read,
 	.write		= generic_file_write,
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index b3ad0bd..bf0f8e1 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -384,7 +384,7 @@ int hostfs_fsync(struct file *file, struct dentry *dentry, int datasync)
 	return fsync_file(HOSTFS_I(dentry->d_inode)->fd, datasync);
 }
 
-static struct file_operations hostfs_file_fops = {
+static const struct file_operations hostfs_file_fops = {
 	.llseek		= generic_file_llseek,
 	.read		= generic_file_read,
 	.sendfile	= generic_file_sendfile,
@@ -399,7 +399,7 @@ static struct file_operations hostfs_file_fops = {
 	.fsync		= hostfs_fsync,
 };
 
-static struct file_operations hostfs_dir_fops = {
+static const struct file_operations hostfs_dir_fops = {
 	.llseek		= generic_file_llseek,
 	.readdir	= hostfs_readdir,
 	.read		= generic_read_dir,
diff --git a/fs/hpfs/dir.c b/fs/hpfs/dir.c
index 5591f96..ecc9180 100644
--- a/fs/hpfs/dir.c
+++ b/fs/hpfs/dir.c
@@ -310,7 +310,7 @@ struct dentry *hpfs_lookup(struct inode *dir, struct dentry *dentry, struct name
 	return ERR_PTR(-ENOENT);
 }
 
-struct file_operations hpfs_dir_ops =
+const struct file_operations hpfs_dir_ops =
 {
 	.llseek		= hpfs_dir_lseek,
 	.read		= generic_read_dir,
diff --git a/fs/hpfs/file.c b/fs/hpfs/file.c
index 7c995ac..d3b9fff 100644
--- a/fs/hpfs/file.c
+++ b/fs/hpfs/file.c
@@ -119,7 +119,7 @@ static ssize_t hpfs_file_write(struct file *file, const char __user *buf,
 	return retval;
 }
 
-struct file_operations hpfs_file_ops =
+const struct file_operations hpfs_file_ops =
 {
 	.llseek		= generic_file_llseek,
 	.read		= generic_file_read,
diff --git a/fs/hpfs/hpfs_fn.h b/fs/hpfs/hpfs_fn.h
index 4c6473a..29b7a3e 100644
--- a/fs/hpfs/hpfs_fn.h
+++ b/fs/hpfs/hpfs_fn.h
@@ -240,7 +240,7 @@ void hpfs_set_dentry_operations(struct dentry *);
 /* dir.c */
 
 struct dentry *hpfs_lookup(struct inode *, struct dentry *, struct nameidata *);
-extern struct file_operations hpfs_dir_ops;
+extern const struct file_operations hpfs_dir_ops;
 
 /* dnode.c */
 
@@ -266,7 +266,7 @@ void hpfs_set_ea(struct inode *, struct fnode *, char *, char *, int);
 /* file.c */
 
 int hpfs_file_fsync(struct file *, struct dentry *, int);
-extern struct file_operations hpfs_file_ops;
+extern const struct file_operations hpfs_file_ops;
 extern struct inode_operations hpfs_file_iops;
 extern struct address_space_operations hpfs_aops;
 
diff --git a/fs/hppfs/hppfs_kern.c b/fs/hppfs/hppfs_kern.c
index a44dc58..2ba20cd 100644
--- a/fs/hppfs/hppfs_kern.c
+++ b/fs/hppfs/hppfs_kern.c
@@ -558,7 +558,7 @@ static loff_t hppfs_llseek(struct file *file, loff_t off, int where)
 	return(default_llseek(file, off, where));
 }
 
-static struct file_operations hppfs_file_fops = {
+static const struct file_operations hppfs_file_fops = {
 	.owner		= NULL,
 	.llseek		= hppfs_llseek,
 	.read		= hppfs_read,
@@ -609,7 +609,7 @@ static int hppfs_fsync(struct file *file, struct dentry *dentry, int datasync)
 	return(0);
 }
 
-static struct file_operations hppfs_dir_fops = {
+static const struct file_operations hppfs_dir_fops = {
 	.owner		= NULL,
 	.readdir	= hppfs_readdir,
 	.open		= hppfs_dir_open,
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 25fa8bb..3a5b4e9 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -35,7 +35,7 @@
 
 static struct super_operations hugetlbfs_ops;
 static struct address_space_operations hugetlbfs_aops;
-struct file_operations hugetlbfs_file_operations;
+const struct file_operations hugetlbfs_file_operations;
 static struct inode_operations hugetlbfs_dir_inode_operations;
 static struct inode_operations hugetlbfs_inode_operations;
 
@@ -566,7 +566,7 @@ static void init_once(void *foo, kmem_cache_t *cachep, unsigned long flags)
 		inode_init_once(&ei->vfs_inode);
 }
 
-struct file_operations hugetlbfs_file_operations = {
+const struct file_operations hugetlbfs_file_operations = {
 	.mmap			= hugetlbfs_file_mmap,
 	.fsync			= simple_sync_file,
 	.get_unmapped_area	= hugetlb_get_unmapped_area,
diff --git a/fs/inotify.c b/fs/inotify.c
index f48a3da..367c487 100644
--- a/fs/inotify.c
+++ b/fs/inotify.c
@@ -920,7 +920,7 @@ static long inotify_ioctl(struct file *file, unsigned int cmd,
 	return ret;
 }
 
-static struct file_operations inotify_fops = {
+static const struct file_operations inotify_fops = {
 	.poll           = inotify_poll,
 	.read           = inotify_read,
 	.release        = inotify_release,
diff --git a/fs/isofs/dir.c b/fs/isofs/dir.c
index 7901ac9..5440ea2 100644
--- a/fs/isofs/dir.c
+++ b/fs/isofs/dir.c
@@ -16,7 +16,7 @@
 
 static int isofs_readdir(struct file *, void *, filldir_t);
 
-struct file_operations isofs_dir_operations =
+const struct file_operations isofs_dir_operations =
 {
 	.read		= generic_read_dir,
 	.readdir	= isofs_readdir,
diff --git a/fs/isofs/isofs.h b/fs/isofs/isofs.h
index 439a19b..b87ba06 100644
--- a/fs/isofs/isofs.h
+++ b/fs/isofs/isofs.h
@@ -175,6 +175,6 @@ isofs_normalize_block_and_offset(struct iso_directory_record* de,
 }
 
 extern struct inode_operations isofs_dir_inode_operations;
-extern struct file_operations isofs_dir_operations;
+extern const struct file_operations isofs_dir_operations;
 extern struct address_space_operations isofs_symlink_aops;
 extern struct export_operations isofs_export_ops;
diff --git a/fs/jffs/inode-v23.c b/fs/jffs/inode-v23.c
index 5a4519e..020cc09 100644
--- a/fs/jffs/inode-v23.c
+++ b/fs/jffs/inode-v23.c
@@ -55,9 +55,9 @@
 static int jffs_remove(struct inode *dir, struct dentry *dentry, int type);
 
 static struct super_operations jffs_ops;
-static struct file_operations jffs_file_operations;
+static const struct file_operations jffs_file_operations;
 static struct inode_operations jffs_file_inode_operations;
-static struct file_operations jffs_dir_operations;
+static const struct file_operations jffs_dir_operations;
 static struct inode_operations jffs_dir_inode_operations;
 static struct address_space_operations jffs_address_operations;
 
@@ -1629,7 +1629,7 @@ static int jffs_fsync(struct file *f, struct dentry *d, int datasync)
 }
 
 
-static struct file_operations jffs_file_operations =
+static const struct file_operations jffs_file_operations =
 {
 	.open		= generic_file_open,
 	.llseek		= generic_file_llseek,
@@ -1649,7 +1649,7 @@ static struct inode_operations jffs_file_inode_operations =
 };
 
 
-static struct file_operations jffs_dir_operations =
+static const struct file_operations jffs_dir_operations =
 {
 	.readdir	= jffs_readdir,
 };
diff --git a/fs/jffs2/dir.c b/fs/jffs2/dir.c
index a7bf9cb..8bc7a50 100644
--- a/fs/jffs2/dir.c
+++ b/fs/jffs2/dir.c
@@ -37,7 +37,7 @@ static int jffs2_mknod (struct inode *,struct dentry *,int,dev_t);
 static int jffs2_rename (struct inode *, struct dentry *,
                         struct inode *, struct dentry *);
 
-struct file_operations jffs2_dir_operations =
+const struct file_operations jffs2_dir_operations =
 {
 	.read =		generic_read_dir,
 	.readdir =	jffs2_readdir,
diff --git a/fs/jffs2/file.c b/fs/jffs2/file.c
index 935f273..9f41712 100644
--- a/fs/jffs2/file.c
+++ b/fs/jffs2/file.c
@@ -38,7 +38,7 @@ int jffs2_fsync(struct file *filp, struct dentry *dentry, int datasync)
 	return 0;
 }
 
-struct file_operations jffs2_file_operations =
+const struct file_operations jffs2_file_operations =
 {
 	.llseek =	generic_file_llseek,
 	.open =		generic_file_open,
diff --git a/fs/jffs2/os-linux.h b/fs/jffs2/os-linux.h
index 59e7a39..d307cf5 100644
--- a/fs/jffs2/os-linux.h
+++ b/fs/jffs2/os-linux.h
@@ -159,11 +159,11 @@ void jffs2_stop_garbage_collect_thread(struct jffs2_sb_info *c);
 void jffs2_garbage_collect_trigger(struct jffs2_sb_info *c);
 
 /* dir.c */
-extern struct file_operations jffs2_dir_operations;
+extern const struct file_operations jffs2_dir_operations;
 extern struct inode_operations jffs2_dir_inode_operations;
 
 /* file.c */
-extern struct file_operations jffs2_file_operations;
+extern const struct file_operations jffs2_file_operations;
 extern struct inode_operations jffs2_file_inode_operations;
 extern struct address_space_operations jffs2_file_address_operations;
 int jffs2_fsync(struct file *, struct dentry *, int);
diff --git a/fs/jfs/file.c b/fs/jfs/file.c
index e1ac6e4..1c9745b 100644
--- a/fs/jfs/file.c
+++ b/fs/jfs/file.c
@@ -100,7 +100,7 @@ struct inode_operations jfs_file_inode_operations = {
 #endif
 };
 
-struct file_operations jfs_file_operations = {
+const struct file_operations jfs_file_operations = {
 	.open		= jfs_open,
 	.llseek		= generic_file_llseek,
 	.write		= generic_file_write,
diff --git a/fs/jfs/jfs_inode.h b/fs/jfs/jfs_inode.h
index 095d471..c300726 100644
--- a/fs/jfs/jfs_inode.h
+++ b/fs/jfs/jfs_inode.h
@@ -35,9 +35,9 @@ extern void jfs_set_inode_flags(struct inode *);
 
 extern struct address_space_operations jfs_aops;
 extern struct inode_operations jfs_dir_inode_operations;
-extern struct file_operations jfs_dir_operations;
+extern const struct file_operations jfs_dir_operations;
 extern struct inode_operations jfs_file_inode_operations;
-extern struct file_operations jfs_file_operations;
+extern const struct file_operations jfs_file_operations;
 extern struct inode_operations jfs_symlink_inode_operations;
 extern struct dentry_operations jfs_ci_dentry_operations;
 #endif				/* _H_JFS_INODE */
diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index 309cee5..09ea03f 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -1519,7 +1519,7 @@ struct inode_operations jfs_dir_inode_operations = {
 #endif
 };
 
-struct file_operations jfs_dir_operations = {
+const struct file_operations jfs_dir_operations = {
 	.read		= generic_read_dir,
 	.readdir	= jfs_readdir,
 	.fsync		= jfs_fsync,
diff --git a/fs/libfs.c b/fs/libfs.c
index 4fdeace..7145ba7 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -179,7 +179,7 @@ ssize_t generic_read_dir(struct file *filp, char __user *buf, size_t siz, loff_t
 	return -EISDIR;
 }
 
-struct file_operations simple_dir_operations = {
+const struct file_operations simple_dir_operations = {
 	.open		= dcache_dir_open,
 	.release	= dcache_dir_close,
 	.llseek		= dcache_dir_lseek,
diff --git a/fs/minix/dir.c b/fs/minix/dir.c
index 732502a..69224d1 100644
--- a/fs/minix/dir.c
+++ b/fs/minix/dir.c
@@ -14,7 +14,7 @@ typedef struct minix_dir_entry minix_dirent;
 
 static int minix_readdir(struct file *, void *, filldir_t);
 
-struct file_operations minix_dir_operations = {
+const struct file_operations minix_dir_operations = {
 	.read		= generic_read_dir,
 	.readdir	= minix_readdir,
 	.fsync		= minix_sync_file,
diff --git a/fs/minix/file.c b/fs/minix/file.c
index f1d77ac..420b328 100644
--- a/fs/minix/file.c
+++ b/fs/minix/file.c
@@ -15,7 +15,7 @@
  */
 int minix_sync_file(struct file *, struct dentry *, int);
 
-struct file_operations minix_file_operations = {
+const struct file_operations minix_file_operations = {
 	.llseek		= generic_file_llseek,
 	.read		= generic_file_read,
 	.write		= generic_file_write,
diff --git a/fs/minix/minix.h b/fs/minix/minix.h
index e42a8bb..c55b77c 100644
--- a/fs/minix/minix.h
+++ b/fs/minix/minix.h
@@ -81,8 +81,8 @@ extern int minix_sync_file(struct file *, struct dentry *, int);
 
 extern struct inode_operations minix_file_inode_operations;
 extern struct inode_operations minix_dir_inode_operations;
-extern struct file_operations minix_file_operations;
-extern struct file_operations minix_dir_operations;
+extern const struct file_operations minix_file_operations;
+extern const struct file_operations minix_dir_operations;
 extern struct dentry_operations minix_dentry_operations;
 
 static inline struct minix_sb_info *minix_sb(struct super_block *sb)
diff --git a/fs/ncpfs/dir.c b/fs/ncpfs/dir.c
index cfd76f4..f0860c6 100644
--- a/fs/ncpfs/dir.c
+++ b/fs/ncpfs/dir.c
@@ -49,7 +49,7 @@ extern int ncp_symlink(struct inode *, struct dentry *, const char *);
 #define ncp_symlink NULL
 #endif
 		      
-struct file_operations ncp_dir_operations =
+const struct file_operations ncp_dir_operations =
 {
 	.read		= generic_read_dir,
 	.readdir	= ncp_readdir,
diff --git a/fs/ncpfs/file.c b/fs/ncpfs/file.c
index ebdad8f..e6b7c67 100644
--- a/fs/ncpfs/file.c
+++ b/fs/ncpfs/file.c
@@ -283,7 +283,7 @@ static int ncp_release(struct inode *inode, struct file *file) {
 	return 0;
 }
 
-struct file_operations ncp_file_operations =
+const struct file_operations ncp_file_operations =
 {
 	.llseek		= remote_llseek,
 	.read		= ncp_file_read,
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 06c48b3..a23f348 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -54,7 +54,7 @@ static int nfs_rename(struct inode *, struct dentry *,
 static int nfs_fsync_dir(struct file *, struct dentry *, int);
 static loff_t nfs_llseek_dir(struct file *, loff_t, int);
 
-struct file_operations nfs_dir_operations = {
+const struct file_operations nfs_dir_operations = {
 	.llseek		= nfs_llseek_dir,
 	.read		= generic_read_dir,
 	.readdir	= nfs_readdir,
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index dee49a0..f1df2c8 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -49,7 +49,7 @@ static int nfs_check_flags(int flags);
 static int nfs_lock(struct file *filp, int cmd, struct file_lock *fl);
 static int nfs_flock(struct file *filp, int cmd, struct file_lock *fl);
 
-struct file_operations nfs_file_operations = {
+const struct file_operations nfs_file_operations = {
 	.llseek		= nfs_file_llseek,
 	.read		= do_sync_read,
 	.write		= do_sync_write,
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index c8960af..3ef017b 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -134,7 +134,7 @@ static ssize_t nfsctl_transaction_read(struct file *file, char __user *buf, size
 	return simple_transaction_read(file, buf, size, pos);
 }
 
-static struct file_operations transaction_ops = {
+static const struct file_operations transaction_ops = {
 	.write		= nfsctl_transaction_write,
 	.read		= nfsctl_transaction_read,
 	.release	= simple_transaction_release,
@@ -146,7 +146,7 @@ static int exports_open(struct inode *inode, struct file *file)
 	return seq_open(file, &nfs_exports_op);
 }
 
-static struct file_operations exports_operations = {
+static const struct file_operations exports_operations = {
 	.open		= exports_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,
diff --git a/fs/nfsd/stats.c b/fs/nfsd/stats.c
index 1cf955b..57265d5 100644
--- a/fs/nfsd/stats.c
+++ b/fs/nfsd/stats.c
@@ -80,7 +80,7 @@ static int nfsd_proc_open(struct inode *inode, struct file *file)
 	return single_open(file, nfsd_proc_show, NULL);
 }
 
-static struct file_operations nfsd_proc_fops = {
+static const struct file_operations nfsd_proc_fops = {
 	.owner = THIS_MODULE,
 	.open = nfsd_proc_open,
 	.read  = seq_read,
diff --git a/fs/ntfs/dir.c b/fs/ntfs/dir.c
index 9d9ed3f..d1e2c6f 100644
--- a/fs/ntfs/dir.c
+++ b/fs/ntfs/dir.c
@@ -1553,7 +1553,7 @@ static int ntfs_dir_fsync(struct file *filp, struct dentry *dentry,
 
 #endif /* NTFS_RW */
 
-struct file_operations ntfs_dir_ops = {
+const struct file_operations ntfs_dir_ops = {
 	.llseek		= generic_file_llseek,	/* Seek inside directory. */
 	.read		= generic_read_dir,	/* Return -EISDIR. */
 	.readdir	= ntfs_readdir,		/* Read directory contents. */
diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c
index f5d057e..c63a83e 100644
--- a/fs/ntfs/file.c
+++ b/fs/ntfs/file.c
@@ -2294,7 +2294,7 @@ static int ntfs_file_fsync(struct file *filp, struct dentry *dentry,
 
 #endif /* NTFS_RW */
 
-struct file_operations ntfs_file_ops = {
+const struct file_operations ntfs_file_ops = {
 	.llseek		= generic_file_llseek,	 /* Seek inside file. */
 	.read		= generic_file_read,	 /* Read from file. */
 	.aio_read	= generic_file_aio_read, /* Async read from file. */
@@ -2337,6 +2337,6 @@ struct inode_operations ntfs_file_inode_ops = {
 #endif /* NTFS_RW */
 };
 
-struct file_operations ntfs_empty_file_ops = {};
+const struct file_operations ntfs_empty_file_ops = {};
 
 struct inode_operations ntfs_empty_inode_ops = {};
diff --git a/fs/ntfs/ntfs.h b/fs/ntfs/ntfs.h
index 1661429..bf7b3d7 100644
--- a/fs/ntfs/ntfs.h
+++ b/fs/ntfs/ntfs.h
@@ -60,13 +60,13 @@ extern struct kmem_cache *ntfs_index_ctx_cache;
 extern struct address_space_operations ntfs_aops;
 extern struct address_space_operations ntfs_mst_aops;
 
-extern struct  file_operations ntfs_file_ops;
+extern const struct  file_operations ntfs_file_ops;
 extern struct inode_operations ntfs_file_inode_ops;
 
-extern struct  file_operations ntfs_dir_ops;
+extern const struct  file_operations ntfs_dir_ops;
 extern struct inode_operations ntfs_dir_inode_ops;
 
-extern struct  file_operations ntfs_empty_file_ops;
+extern const struct  file_operations ntfs_empty_file_ops;
 extern struct inode_operations ntfs_empty_inode_ops;
 
 extern struct export_operations ntfs_export_ops;
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index 84f153a..64cd528 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -2017,7 +2017,7 @@ out:
 	return ret;
 }
 
-static struct file_operations ocfs2_dlm_debug_fops = {
+static const struct file_operations ocfs2_dlm_debug_fops = {
 	.open =		ocfs2_dlm_debug_open,
 	.release =	ocfs2_dlm_debug_release,
 	.read =		seq_read,
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 4b4cbad..34e903a 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -1176,7 +1176,7 @@ struct inode_operations ocfs2_special_file_iops = {
 	.getattr	= ocfs2_getattr,
 };
 
-struct file_operations ocfs2_fops = {
+const struct file_operations ocfs2_fops = {
 	.read		= do_sync_read,
 	.write		= do_sync_write,
 	.sendfile	= generic_file_sendfile,
@@ -1188,7 +1188,7 @@ struct file_operations ocfs2_fops = {
 	.aio_write	= ocfs2_file_aio_write,
 };
 
-struct file_operations ocfs2_dops = {
+const struct file_operations ocfs2_dops = {
 	.read		= generic_read_dir,
 	.readdir	= ocfs2_readdir,
 	.fsync		= ocfs2_sync_file,
diff --git a/fs/ocfs2/file.h b/fs/ocfs2/file.h
index a5ea33b..740c9e7 100644
--- a/fs/ocfs2/file.h
+++ b/fs/ocfs2/file.h
@@ -26,8 +26,8 @@
 #ifndef OCFS2_FILE_H
 #define OCFS2_FILE_H
 
-extern struct file_operations ocfs2_fops;
-extern struct file_operations ocfs2_dops;
+extern const struct file_operations ocfs2_fops;
+extern const struct file_operations ocfs2_dops;
 extern struct inode_operations ocfs2_file_iops;
 extern struct inode_operations ocfs2_special_file_iops;
 struct ocfs2_alloc_context;
diff --git a/fs/openpromfs/inode.c b/fs/openpromfs/inode.c
index aeb0106..0f14276 100644
--- a/fs/openpromfs/inode.c
+++ b/fs/openpromfs/inode.c
@@ -581,17 +581,17 @@ int property_release (struct inode *inode, struct file *filp)
 	return 0;
 }
 
-static struct file_operations openpromfs_prop_ops = {
+static const struct file_operations openpromfs_prop_ops = {
 	.read		= property_read,
 	.write		= property_write,
 	.release	= property_release,
 };
 
-static struct file_operations openpromfs_nodenum_ops = {
+static const struct file_operations openpromfs_nodenum_ops = {
 	.read		= nodenum_read,
 };
 
-static struct file_operations openprom_operations = {
+static const struct file_operations openprom_operations = {
 	.read		= generic_read_dir,
 	.readdir	= openpromfs_readdir,
 };
diff --git a/fs/pipe.c b/fs/pipe.c
index 4384c92..e2f4f1d 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -568,7 +568,7 @@ pipe_rdwr_open(struct inode *inode, struct file *filp)
  * The file_operations structs are not static because they
  * are also used in linux/fs/fifo.c to do operations on FIFOs.
  */
-struct file_operations read_fifo_fops = {
+const struct file_operations read_fifo_fops = {
 	.llseek		= no_llseek,
 	.read		= pipe_read,
 	.readv		= pipe_readv,
@@ -580,7 +580,7 @@ struct file_operations read_fifo_fops = {
 	.fasync		= pipe_read_fasync,
 };
 
-struct file_operations write_fifo_fops = {
+const struct file_operations write_fifo_fops = {
 	.llseek		= no_llseek,
 	.read		= bad_pipe_r,
 	.write		= pipe_write,
@@ -592,7 +592,7 @@ struct file_operations write_fifo_fops = {
 	.fasync		= pipe_write_fasync,
 };
 
-struct file_operations rdwr_fifo_fops = {
+const struct file_operations rdwr_fifo_fops = {
 	.llseek		= no_llseek,
 	.read		= pipe_read,
 	.readv		= pipe_readv,
diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
index adc2cd9..17f6e8f 100644
--- a/fs/proc/kcore.c
+++ b/fs/proc/kcore.c
@@ -31,7 +31,7 @@ static int open_kcore(struct inode * inode, struct file * filp)
 
 static ssize_t read_kcore(struct file *, char __user *, size_t, loff_t *);
 
-struct file_operations proc_kcore_operations = {
+const struct file_operations proc_kcore_operations = {
 	.read		= read_kcore,
 	.open		= open_kcore,
 };
diff --git a/fs/proc/kmsg.c b/fs/proc/kmsg.c
index 10d37bf..ff3b90b 100644
--- a/fs/proc/kmsg.c
+++ b/fs/proc/kmsg.c
@@ -47,7 +47,7 @@ static unsigned int kmsg_poll(struct file *file, poll_table *wait)
 }
 
 
-struct file_operations proc_kmsg_operations = {
+const struct file_operations proc_kmsg_operations = {
 	.read		= kmsg_read,
 	.poll		= kmsg_poll,
 	.open		= kmsg_open,
diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index 4063fb3..7efa73d 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -172,7 +172,7 @@ static int open_vmcore(struct inode *inode, struct file *filp)
 	return 0;
 }
 
-struct file_operations proc_vmcore_operations = {
+const struct file_operations proc_vmcore_operations = {
 	.read		= read_vmcore,
 	.open		= open_vmcore,
 };
diff --git a/fs/qnx4/dir.c b/fs/qnx4/dir.c
index 7a8f559..9031948 100644
--- a/fs/qnx4/dir.c
+++ b/fs/qnx4/dir.c
@@ -81,7 +81,7 @@ out:
 	return 0;
 }
 
-struct file_operations qnx4_dir_operations =
+const struct file_operations qnx4_dir_operations =
 {
 	.read		= generic_read_dir,
 	.readdir	= qnx4_readdir,
diff --git a/fs/qnx4/file.c b/fs/qnx4/file.c
index c33963f..62af4b1 100644
--- a/fs/qnx4/file.c
+++ b/fs/qnx4/file.c
@@ -19,7 +19,7 @@
  * We have mostly NULL's here: the current defaults are ok for
  * the qnx4 filesystem.
  */
-struct file_operations qnx4_file_operations =
+const struct file_operations qnx4_file_operations =
 {
 	.llseek		= generic_file_llseek,
 	.read		= generic_file_read,
diff --git a/fs/ramfs/file-mmu.c b/fs/ramfs/file-mmu.c
index 6ada209..00a933e 100644
--- a/fs/ramfs/file-mmu.c
+++ b/fs/ramfs/file-mmu.c
@@ -32,7 +32,7 @@ struct address_space_operations ramfs_aops = {
 	.commit_write	= simple_commit_write
 };
 
-struct file_operations ramfs_file_operations = {
+const struct file_operations ramfs_file_operations = {
 	.read		= generic_file_read,
 	.write		= generic_file_write,
 	.mmap		= generic_file_mmap,
diff --git a/fs/ramfs/file-nommu.c b/fs/ramfs/file-nommu.c
index b1ca234..f443a84 100644
--- a/fs/ramfs/file-nommu.c
+++ b/fs/ramfs/file-nommu.c
@@ -33,7 +33,7 @@ struct address_space_operations ramfs_aops = {
 	.commit_write		= simple_commit_write
 };
 
-struct file_operations ramfs_file_operations = {
+const struct file_operations ramfs_file_operations = {
 	.mmap			= ramfs_nommu_mmap,
 	.get_unmapped_area	= ramfs_nommu_get_unmapped_area,
 	.read			= generic_file_read,
diff --git a/fs/ramfs/internal.h b/fs/ramfs/internal.h
index 272c8a7..3132376 100644
--- a/fs/ramfs/internal.h
+++ b/fs/ramfs/internal.h
@@ -11,5 +11,5 @@
 
 
 extern struct address_space_operations ramfs_aops;
-extern struct file_operations ramfs_file_operations;
+extern const struct file_operations ramfs_file_operations;
 extern struct inode_operations ramfs_file_inode_operations;
diff --git a/fs/read_write.c b/fs/read_write.c
index 34b1bf2..6256ca8 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -19,7 +19,7 @@
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
 
-struct file_operations generic_ro_fops = {
+const struct file_operations generic_ro_fops = {
 	.llseek		= generic_file_llseek,
 	.read		= generic_file_read,
 	.mmap		= generic_file_readonly_mmap,
diff --git a/fs/reiserfs/dir.c b/fs/reiserfs/dir.c
index d71ac65..973c819 100644
--- a/fs/reiserfs/dir.c
+++ b/fs/reiserfs/dir.c
@@ -18,7 +18,7 @@ static int reiserfs_readdir(struct file *, void *, filldir_t);
 static int reiserfs_dir_fsync(struct file *filp, struct dentry *dentry,
 			      int datasync);
 
-struct file_operations reiserfs_dir_operations = {
+const struct file_operations reiserfs_dir_operations = {
 	.read = generic_read_dir,
 	.readdir = reiserfs_readdir,
 	.fsync = reiserfs_dir_fsync,
diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c
index d0c1e86..010094d1 100644
--- a/fs/reiserfs/file.c
+++ b/fs/reiserfs/file.c
@@ -1566,7 +1566,7 @@ static ssize_t reiserfs_aio_write(struct kiocb *iocb, const char __user * buf,
 	return generic_file_aio_write(iocb, buf, count, pos);
 }
 
-struct file_operations reiserfs_file_operations = {
+const struct file_operations reiserfs_file_operations = {
 	.read = generic_file_read,
 	.write = reiserfs_file_write,
 	.ioctl = reiserfs_ioctl,
diff --git a/fs/reiserfs/procfs.c b/fs/reiserfs/procfs.c
index ef6caed..731688e 100644
--- a/fs/reiserfs/procfs.c
+++ b/fs/reiserfs/procfs.c
@@ -470,7 +470,7 @@ static int r_open(struct inode *inode, struct file *file)
 	return ret;
 }
 
-static struct file_operations r_file_operations = {
+static const struct file_operations r_file_operations = {
 	.open = r_open,
 	.read = seq_read,
 	.llseek = seq_lseek,
diff --git a/fs/romfs/inode.c b/fs/romfs/inode.c
index c2fc424d..9b9eda7 100644
--- a/fs/romfs/inode.c
+++ b/fs/romfs/inode.c
@@ -463,7 +463,7 @@ static struct address_space_operations romfs_aops = {
 	.readpage = romfs_readpage
 };
 
-static struct file_operations romfs_dir_operations = {
+static const struct file_operations romfs_dir_operations = {
 	.read		= generic_read_dir,
 	.readdir	= romfs_readdir,
 };
diff --git a/fs/smbfs/dir.c b/fs/smbfs/dir.c
index 0424d06..34c7a11 100644
--- a/fs/smbfs/dir.c
+++ b/fs/smbfs/dir.c
@@ -34,7 +34,7 @@ static int smb_rename(struct inode *, struct dentry *,
 static int smb_make_node(struct inode *,struct dentry *,int,dev_t);
 static int smb_link(struct dentry *, struct inode *, struct dentry *);
 
-struct file_operations smb_dir_operations =
+const struct file_operations smb_dir_operations =
 {
 	.read		= generic_read_dir,
 	.readdir	= smb_readdir,
diff --git a/fs/smbfs/file.c b/fs/smbfs/file.c
index 7042e62..c56bd99 100644
--- a/fs/smbfs/file.c
+++ b/fs/smbfs/file.c
@@ -401,7 +401,7 @@ smb_file_permission(struct inode *inode, int mask, struct nameidata *nd)
 	return error;
 }
 
-struct file_operations smb_file_operations =
+const struct file_operations smb_file_operations =
 {
 	.llseek		= remote_llseek,
 	.read		= smb_file_read,
diff --git a/fs/smbfs/proto.h b/fs/smbfs/proto.h
index e866ec8..4766459 100644
--- a/fs/smbfs/proto.h
+++ b/fs/smbfs/proto.h
@@ -35,7 +35,7 @@ extern int smb_proc_symlink(struct smb_sb_info *server, struct dentry *d, const
 extern int smb_proc_link(struct smb_sb_info *server, struct dentry *dentry, struct dentry *new_dentry);
 extern void smb_install_null_ops(struct smb_ops *ops);
 /* dir.c */
-extern struct file_operations smb_dir_operations;
+extern const struct file_operations smb_dir_operations;
 extern struct inode_operations smb_dir_inode_operations;
 extern struct inode_operations smb_dir_inode_operations_unix;
 extern void smb_new_dentry(struct dentry *dentry);
@@ -64,7 +64,7 @@ extern int smb_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat
 extern int smb_notify_change(struct dentry *dentry, struct iattr *attr);
 /* file.c */
 extern struct address_space_operations smb_file_aops;
-extern struct file_operations smb_file_operations;
+extern const struct file_operations smb_file_operations;
 extern struct inode_operations smb_file_inode_operations;
 /* ioctl.c */
 extern int smb_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg);
diff --git a/fs/sysfs/bin.c b/fs/sysfs/bin.c
index 78899ee..c16a93c 100644
--- a/fs/sysfs/bin.c
+++ b/fs/sysfs/bin.c
@@ -163,7 +163,7 @@ static int release(struct inode * inode, struct file * file)
 	return 0;
 }
 
-struct file_operations bin_fops = {
+const struct file_operations bin_fops = {
 	.read		= read,
 	.write		= write,
 	.mmap		= mmap,
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 9ee9568..f26880a 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -503,7 +503,7 @@ static loff_t sysfs_dir_lseek(struct file * file, loff_t offset, int origin)
 	return offset;
 }
 
-struct file_operations sysfs_dir_operations = {
+const struct file_operations sysfs_dir_operations = {
 	.open		= sysfs_dir_open,
 	.release	= sysfs_dir_close,
 	.llseek		= sysfs_dir_lseek,
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 5e83e72..830f76fa 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -348,7 +348,7 @@ static int sysfs_release(struct inode * inode, struct file * filp)
 	return 0;
 }
 
-struct file_operations sysfs_file_operations = {
+const struct file_operations sysfs_file_operations = {
 	.read		= sysfs_read_file,
 	.write		= sysfs_write_file,
 	.llseek		= generic_file_llseek,
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index cf11d5b..32958a7 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -21,9 +21,9 @@ extern int sysfs_setattr(struct dentry *dentry, struct iattr *iattr);
 
 extern struct rw_semaphore sysfs_rename_sem;
 extern struct super_block * sysfs_sb;
-extern struct file_operations sysfs_dir_operations;
-extern struct file_operations sysfs_file_operations;
-extern struct file_operations bin_fops;
+extern const struct file_operations sysfs_dir_operations;
+extern const struct file_operations sysfs_file_operations;
+extern const struct file_operations bin_fops;
 extern struct inode_operations sysfs_dir_inode_operations;
 extern struct inode_operations sysfs_symlink_inode_operations;
 
diff --git a/fs/sysv/dir.c b/fs/sysv/dir.c
index cce8b05..8c66e92 100644
--- a/fs/sysv/dir.c
+++ b/fs/sysv/dir.c
@@ -20,7 +20,7 @@
 
 static int sysv_readdir(struct file *, void *, filldir_t);
 
-struct file_operations sysv_dir_operations = {
+const struct file_operations sysv_dir_operations = {
 	.read		= generic_read_dir,
 	.readdir	= sysv_readdir,
 	.fsync		= sysv_sync_file,
diff --git a/fs/sysv/file.c b/fs/sysv/file.c
index da69abc..a59e303 100644
--- a/fs/sysv/file.c
+++ b/fs/sysv/file.c
@@ -19,7 +19,7 @@
  * We have mostly NULLs here: the current defaults are OK for
  * the coh filesystem.
  */
-struct file_operations sysv_file_operations = {
+const struct file_operations sysv_file_operations = {
 	.llseek		= generic_file_llseek,
 	.read		= generic_file_read,
 	.write		= generic_file_write,
diff --git a/fs/sysv/sysv.h b/fs/sysv/sysv.h
index b7f9b4a..393a480 100644
--- a/fs/sysv/sysv.h
+++ b/fs/sysv/sysv.h
@@ -159,8 +159,8 @@ extern ino_t sysv_inode_by_name(struct dentry *);
 extern struct inode_operations sysv_file_inode_operations;
 extern struct inode_operations sysv_dir_inode_operations;
 extern struct inode_operations sysv_fast_symlink_inode_operations;
-extern struct file_operations sysv_file_operations;
-extern struct file_operations sysv_dir_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 struct super_operations sysv_sops;
 extern struct dentry_operations sysv_dentry_operations;
diff --git a/fs/udf/dir.c b/fs/udf/dir.c
index f522252..8c28efa 100644
--- a/fs/udf/dir.c
+++ b/fs/udf/dir.c
@@ -42,7 +42,7 @@ static int do_udf_readdir(struct inode *, struct file *, filldir_t, void *);
 
 /* readdir and lookup functions */
 
-struct file_operations udf_dir_operations = {
+const struct file_operations udf_dir_operations = {
 	.read			= generic_read_dir,
 	.readdir		= udf_readdir,
 	.ioctl			= udf_ioctl,
diff --git a/fs/udf/file.c b/fs/udf/file.c
index a6f2acc..e34b00e 100644
--- a/fs/udf/file.c
+++ b/fs/udf/file.c
@@ -248,7 +248,7 @@ static int udf_release_file(struct inode * inode, struct file * filp)
 	return 0;
 }
 
-struct file_operations udf_file_operations = {
+const struct file_operations udf_file_operations = {
 	.read			= generic_file_read,
 	.ioctl			= udf_ioctl,
 	.open			= generic_file_open,
diff --git a/fs/udf/udfdecl.h b/fs/udf/udfdecl.h
index 1d5800e..023e19b 100644
--- a/fs/udf/udfdecl.h
+++ b/fs/udf/udfdecl.h
@@ -44,9 +44,9 @@ struct buffer_head;
 struct super_block;
 
 extern struct inode_operations udf_dir_inode_operations;
-extern struct file_operations udf_dir_operations;
+extern const struct file_operations udf_dir_operations;
 extern struct inode_operations udf_file_inode_operations;
-extern struct file_operations udf_file_operations;
+extern const struct file_operations udf_file_operations;
 extern struct address_space_operations udf_aops;
 extern struct address_space_operations udf_adinicb_aops;
 extern struct address_space_operations udf_symlink_aops;
diff --git a/fs/ufs/dir.c b/fs/ufs/dir.c
index 7c10c68..1a56120 100644
--- a/fs/ufs/dir.c
+++ b/fs/ufs/dir.c
@@ -620,7 +620,7 @@ int ufs_empty_dir (struct inode * inode)
 	return 1;
 }
 
-struct file_operations ufs_dir_operations = {
+const struct file_operations ufs_dir_operations = {
 	.read		= generic_read_dir,
 	.readdir	= ufs_readdir,
 	.fsync		= file_fsync,
diff --git a/fs/ufs/file.c b/fs/ufs/file.c
index 62ad481..312fd3f 100644
--- a/fs/ufs/file.c
+++ b/fs/ufs/file.c
@@ -31,7 +31,7 @@
  * the ufs filesystem.
  */
  
-struct file_operations ufs_file_operations = {
+const struct file_operations ufs_file_operations = {
 	.llseek		= generic_file_llseek,
 	.read		= generic_file_read,
 	.write		= generic_file_write,
diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index 185567a..85997b1 100644
--- a/fs/xfs/linux-2.6/xfs_file.c
+++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -528,7 +528,7 @@ open_exec_out:
 }
 #endif /* HAVE_FOP_OPEN_EXEC */
 
-struct file_operations xfs_file_operations = {
+const struct file_operations xfs_file_operations = {
 	.llseek		= generic_file_llseek,
 	.read		= do_sync_read,
 	.write		= do_sync_write,
@@ -550,7 +550,7 @@ struct file_operations xfs_file_operations = {
 #endif
 };
 
-struct file_operations xfs_invis_file_operations = {
+const struct file_operations xfs_invis_file_operations = {
 	.llseek		= generic_file_llseek,
 	.read		= do_sync_read,
 	.write		= do_sync_write,
@@ -570,7 +570,7 @@ struct file_operations xfs_invis_file_operations = {
 };
 
 
-struct file_operations xfs_dir_file_operations = {
+const struct file_operations xfs_dir_file_operations = {
 	.read		= generic_read_dir,
 	.readdir	= xfs_file_readdir,
 	.unlocked_ioctl	= xfs_file_ioctl,
diff --git a/fs/xfs/linux-2.6/xfs_iops.h b/fs/xfs/linux-2.6/xfs_iops.h
index a8417d7..ad6173d 100644
--- a/fs/xfs/linux-2.6/xfs_iops.h
+++ b/fs/xfs/linux-2.6/xfs_iops.h
@@ -22,9 +22,9 @@ extern struct inode_operations xfs_inode_operations;
 extern struct inode_operations xfs_dir_inode_operations;
 extern struct inode_operations xfs_symlink_inode_operations;
 
-extern struct file_operations xfs_file_operations;
-extern struct file_operations xfs_dir_file_operations;
-extern struct file_operations xfs_invis_file_operations;
+extern const struct file_operations xfs_file_operations;
+extern const struct file_operations xfs_dir_file_operations;
+extern const struct file_operations xfs_invis_file_operations;
 
 extern int xfs_ioctl(struct bhv_desc *, struct inode *, struct file *,
                         int, unsigned int, void __user *);