From 754661f143e70d66eae6c48532ca245aa05dec0e Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@linux.intel.com>
Date: Mon, 12 Feb 2007 00:55:38 -0800
Subject: [PATCH] mark struct inode_operations const 1

Many struct inode_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/autofs/autofs_i.h | 4 ++--
 fs/autofs/root.c     | 2 +-
 fs/autofs/symlink.c  | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

(limited to 'fs/autofs')

diff --git a/fs/autofs/autofs_i.h b/fs/autofs/autofs_i.h
index 906ba5ce2261..4ef544434b51 100644
--- a/fs/autofs/autofs_i.h
+++ b/fs/autofs/autofs_i.h
@@ -142,8 +142,8 @@ struct autofs_dir_ent *autofs_expire(struct super_block *,struct autofs_sb_info
 
 /* Operations structures */
 
-extern struct inode_operations autofs_root_inode_operations;
-extern struct inode_operations autofs_symlink_inode_operations;
+extern const struct inode_operations autofs_root_inode_operations;
+extern const struct inode_operations autofs_symlink_inode_operations;
 extern const struct file_operations autofs_root_operations;
 
 /* Initializing function */
diff --git a/fs/autofs/root.c b/fs/autofs/root.c
index e698c51d2b02..f2597205939d 100644
--- a/fs/autofs/root.c
+++ b/fs/autofs/root.c
@@ -32,7 +32,7 @@ const struct file_operations autofs_root_operations = {
 	.ioctl		= autofs_root_ioctl,
 };
 
-struct inode_operations autofs_root_inode_operations = {
+const struct inode_operations autofs_root_inode_operations = {
         .lookup		= autofs_root_lookup,
         .unlink		= autofs_root_unlink,
         .symlink	= autofs_root_symlink,
diff --git a/fs/autofs/symlink.c b/fs/autofs/symlink.c
index c74f2eb65775..7ce9cb2c9ce2 100644
--- a/fs/autofs/symlink.c
+++ b/fs/autofs/symlink.c
@@ -20,7 +20,7 @@ static void *autofs_follow_link(struct dentry *dentry, struct nameidata *nd)
 	return NULL;
 }
 
-struct inode_operations autofs_symlink_inode_operations = {
+const struct inode_operations autofs_symlink_inode_operations = {
 	.readlink	= generic_readlink,
 	.follow_link	= autofs_follow_link
 };
-- 
cgit v1.2.3


From ee9b6d61a2a43c5952eb43283f8db284a4e70b8a Mon Sep 17 00:00:00 2001
From: Josef 'Jeff' Sipek <jsipek@cs.sunysb.edu>
Date: Mon, 12 Feb 2007 00:55:41 -0800
Subject: [PATCH] Mark struct super_operations const

This patch is inspired by Arjan's "Patch series to mark struct
file_operations and struct inode_operations const".

Compile tested with gcc & sparse.

Signed-off-by: Josef 'Jeff' Sipek <jsipek@cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/9p/vfs_super.c             | 4 ++--
 fs/adfs/super.c               | 2 +-
 fs/affs/super.c               | 2 +-
 fs/afs/super.c                | 2 +-
 fs/autofs/inode.c             | 2 +-
 fs/autofs4/inode.c            | 2 +-
 fs/bfs/inode.c                | 2 +-
 fs/binfmt_misc.c              | 2 +-
 fs/block_dev.c                | 2 +-
 fs/cifs/cifsfs.c              | 4 ++--
 fs/cifs/cifsfs.h              | 2 +-
 fs/coda/inode.c               | 2 +-
 fs/configfs/mount.c           | 2 +-
 fs/cramfs/inode.c             | 4 ++--
 fs/devpts/inode.c             | 2 +-
 fs/ecryptfs/ecryptfs_kernel.h | 2 +-
 fs/ecryptfs/super.c           | 2 +-
 fs/efs/super.c                | 2 +-
 fs/ext2/super.c               | 2 +-
 fs/ext3/super.c               | 2 +-
 fs/ext4/super.c               | 2 +-
 fs/fat/inode.c                | 2 +-
 fs/freevxfs/vxfs_super.c      | 2 +-
 fs/fuse/inode.c               | 2 +-
 fs/gfs2/ops_super.c           | 2 +-
 fs/gfs2/ops_super.h           | 2 +-
 fs/hfs/super.c                | 2 +-
 fs/hfsplus/super.c            | 2 +-
 fs/hostfs/hostfs_kern.c       | 2 +-
 fs/hpfs/super.c               | 2 +-
 fs/hppfs/hppfs_kern.c         | 4 ++--
 fs/hugetlbfs/inode.c          | 4 ++--
 fs/inode.c                    | 6 +++---
 fs/isofs/inode.c              | 2 +-
 fs/jffs/inode-v23.c           | 4 ++--
 fs/jffs2/super.c              | 2 +-
 fs/jfs/super.c                | 4 ++--
 fs/libfs.c                    | 4 ++--
 fs/minix/inode.c              | 2 +-
 fs/ncpfs/inode.c              | 2 +-
 fs/nfs/super.c                | 4 ++--
 fs/ntfs/super.c               | 2 +-
 fs/ocfs2/dlm/dlmfs.c          | 4 ++--
 fs/ocfs2/super.c              | 2 +-
 fs/openpromfs/inode.c         | 2 +-
 fs/proc/inode.c               | 2 +-
 fs/qnx4/inode.c               | 4 ++--
 fs/ramfs/inode.c              | 4 ++--
 fs/reiserfs/super.c           | 2 +-
 fs/romfs/inode.c              | 4 ++--
 fs/smbfs/inode.c              | 2 +-
 fs/super.c                    | 2 +-
 fs/sysfs/mount.c              | 2 +-
 fs/sysv/inode.c               | 2 +-
 fs/sysv/sysv.h                | 2 +-
 fs/udf/super.c                | 2 +-
 fs/ufs/super.c                | 4 ++--
 include/linux/fs.h            | 4 ++--
 58 files changed, 75 insertions(+), 75 deletions(-)

(limited to 'fs/autofs')

diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index 63320d4e15d2..0ec42f665457 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -45,7 +45,7 @@
 #include "fid.h"
 
 static void v9fs_clear_inode(struct inode *);
-static struct super_operations v9fs_super_ops;
+static const struct super_operations v9fs_super_ops;
 
 /**
  * v9fs_clear_inode - release an inode
@@ -263,7 +263,7 @@ v9fs_umount_begin(struct vfsmount *vfsmnt, int flags)
 		v9fs_session_cancel(v9ses);
 }
 
-static struct super_operations v9fs_super_ops = {
+static const struct super_operations v9fs_super_ops = {
 	.statfs = simple_statfs,
 	.clear_inode = v9fs_clear_inode,
 	.show_options = v9fs_show_options,
diff --git a/fs/adfs/super.c b/fs/adfs/super.c
index 5023351a7afe..2e5f2c8371ee 100644
--- a/fs/adfs/super.c
+++ b/fs/adfs/super.c
@@ -254,7 +254,7 @@ static void destroy_inodecache(void)
 	kmem_cache_destroy(adfs_inode_cachep);
 }
 
-static struct super_operations adfs_sops = {
+static const struct super_operations adfs_sops = {
 	.alloc_inode	= adfs_alloc_inode,
 	.destroy_inode	= adfs_destroy_inode,
 	.write_inode	= adfs_write_inode,
diff --git a/fs/affs/super.c b/fs/affs/super.c
index 3de93e799949..a324045d8554 100644
--- a/fs/affs/super.c
+++ b/fs/affs/super.c
@@ -112,7 +112,7 @@ static void destroy_inodecache(void)
 	kmem_cache_destroy(affs_inode_cachep);
 }
 
-static struct super_operations affs_sops = {
+static const struct super_operations affs_sops = {
 	.alloc_inode	= affs_alloc_inode,
 	.destroy_inode	= affs_destroy_inode,
 	.read_inode	= affs_read_inode,
diff --git a/fs/afs/super.c b/fs/afs/super.c
index 18d9b77ba40f..eb7e32349da3 100644
--- a/fs/afs/super.c
+++ b/fs/afs/super.c
@@ -56,7 +56,7 @@ struct file_system_type afs_fs_type = {
 	.fs_flags	= FS_BINARY_MOUNTDATA,
 };
 
-static struct super_operations afs_super_ops = {
+static const struct super_operations afs_super_ops = {
 	.statfs		= simple_statfs,
 	.alloc_inode	= afs_alloc_inode,
 	.drop_inode	= generic_delete_inode,
diff --git a/fs/autofs/inode.c b/fs/autofs/inode.c
index f968d1342808..aa0b61ff8270 100644
--- a/fs/autofs/inode.c
+++ b/fs/autofs/inode.c
@@ -52,7 +52,7 @@ out_kill_sb:
 
 static void autofs_read_inode(struct inode *inode);
 
-static struct super_operations autofs_sops = {
+static const struct super_operations autofs_sops = {
 	.read_inode	= autofs_read_inode,
 	.statfs		= simple_statfs,
 };
diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c
index e8f6c5ad3e90..5e458e096ef6 100644
--- a/fs/autofs4/inode.c
+++ b/fs/autofs4/inode.c
@@ -196,7 +196,7 @@ static int autofs4_show_options(struct seq_file *m, struct vfsmount *mnt)
 	return 0;
 }
 
-static struct super_operations autofs4_sops = {
+static const struct super_operations autofs4_sops = {
 	.statfs		= simple_statfs,
 	.show_options	= autofs4_show_options,
 };
diff --git a/fs/bfs/inode.c b/fs/bfs/inode.c
index 134c99941a63..93d6219243ad 100644
--- a/fs/bfs/inode.c
+++ b/fs/bfs/inode.c
@@ -270,7 +270,7 @@ static void destroy_inodecache(void)
 	kmem_cache_destroy(bfs_inode_cachep);
 }
 
-static struct super_operations bfs_sops = {
+static const struct super_operations bfs_sops = {
 	.alloc_inode	= bfs_alloc_inode,
 	.destroy_inode	= bfs_destroy_inode,
 	.read_inode	= bfs_read_inode,
diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
index c2e08252af35..e6f57990b121 100644
--- a/fs/binfmt_misc.c
+++ b/fs/binfmt_misc.c
@@ -719,7 +719,7 @@ static const struct file_operations bm_status_operations = {
 
 /* Superblock handling */
 
-static struct super_operations s_ops = {
+static const struct super_operations s_ops = {
 	.statfs		= simple_statfs,
 	.clear_inode	= bm_clear_inode,
 };
diff --git a/fs/block_dev.c b/fs/block_dev.c
index fc7028b685f2..0c59b703e9d5 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -489,7 +489,7 @@ static void bdev_clear_inode(struct inode *inode)
 	spin_unlock(&bdev_lock);
 }
 
-static struct super_operations bdev_sops = {
+static const struct super_operations bdev_sops = {
 	.statfs = simple_statfs,
 	.alloc_inode = bdev_alloc_inode,
 	.destroy_inode = bdev_destroy_inode,
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 481e84f5f361..e8287c4c6eb3 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -64,7 +64,7 @@ extern struct task_struct * oplockThread; /* remove sparse warning */
 struct task_struct * oplockThread = NULL;
 extern struct task_struct * dnotifyThread; /* remove sparse warning */
 struct task_struct * dnotifyThread = NULL;
-static struct super_operations cifs_super_ops; 
+static const struct super_operations cifs_super_ops;
 unsigned int CIFSMaxBufSize = CIFS_MAX_MSGSIZE;
 module_param(CIFSMaxBufSize, int, 0);
 MODULE_PARM_DESC(CIFSMaxBufSize,"Network buffer size (not including header). Default: 16384 Range: 8192 to 130048");
@@ -453,7 +453,7 @@ static int cifs_remount(struct super_block *sb, int *flags, char *data)
 	return 0;
 }
 
-static struct super_operations cifs_super_ops = {
+static const struct super_operations cifs_super_ops = {
 	.read_inode = cifs_read_inode,
 	.put_super = cifs_put_super,
 	.statfs = cifs_statfs,
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index ab9e20a863f3..01ae24af9cfd 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -36,7 +36,7 @@ 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;*/
+/* extern const struct super_operations cifs_super_ops;*/
 extern void cifs_read_inode(struct inode *);
 extern void cifs_delete_inode(struct inode *);
 /* extern void cifs_write_inode(struct inode *); *//* BB not needed yet */
diff --git a/fs/coda/inode.c b/fs/coda/inode.c
index 1562515efdb5..614175a3b02e 100644
--- a/fs/coda/inode.c
+++ b/fs/coda/inode.c
@@ -90,7 +90,7 @@ static int coda_remount(struct super_block *sb, int *flags, char *data)
 }
 
 /* exported operations */
-static struct super_operations coda_super_operations =
+static const struct super_operations coda_super_operations =
 {
 	.alloc_inode	= coda_alloc_inode,
 	.destroy_inode	= coda_destroy_inode,
diff --git a/fs/configfs/mount.c b/fs/configfs/mount.c
index ed678529ebb2..6f573004cd7d 100644
--- a/fs/configfs/mount.c
+++ b/fs/configfs/mount.c
@@ -41,7 +41,7 @@ struct super_block * configfs_sb = NULL;
 struct kmem_cache *configfs_dir_cachep;
 static int configfs_mnt_count = 0;
 
-static struct super_operations configfs_ops = {
+static const struct super_operations configfs_ops = {
 	.statfs		= simple_statfs,
 	.drop_inode	= generic_delete_inode,
 };
diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c
index 0367d200a2de..facd0c89be8f 100644
--- a/fs/cramfs/inode.c
+++ b/fs/cramfs/inode.c
@@ -27,7 +27,7 @@
 
 #include <asm/uaccess.h>
 
-static struct super_operations cramfs_ops;
+static const struct super_operations cramfs_ops;
 static const struct inode_operations cramfs_dir_inode_operations;
 static const struct file_operations cramfs_directory_operations;
 static const struct address_space_operations cramfs_aops;
@@ -522,7 +522,7 @@ static const struct inode_operations cramfs_dir_inode_operations = {
 	.lookup		= cramfs_lookup,
 };
 
-static struct super_operations cramfs_ops = {
+static const struct super_operations cramfs_ops = {
 	.put_super	= cramfs_put_super,
 	.remount_fs	= cramfs_remount,
 	.statfs		= cramfs_statfs,
diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c
index 5f7b5a6025bf..643e57b622bd 100644
--- a/fs/devpts/inode.c
+++ b/fs/devpts/inode.c
@@ -91,7 +91,7 @@ static int devpts_remount(struct super_block *sb, int *flags, char *data)
 	return 0;
 }
 
-static struct super_operations devpts_sops = {
+static const struct super_operations devpts_sops = {
 	.statfs		= simple_statfs,
 	.remount_fs	= devpts_remount,
 };
diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index 275445d17162..b3609b7cdf11 100644
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -449,7 +449,7 @@ extern const struct file_operations ecryptfs_dir_fops;
 extern const struct inode_operations ecryptfs_main_iops;
 extern const struct inode_operations ecryptfs_dir_iops;
 extern const struct inode_operations ecryptfs_symlink_iops;
-extern struct super_operations ecryptfs_sops;
+extern const struct super_operations ecryptfs_sops;
 extern struct dentry_operations ecryptfs_dops;
 extern struct address_space_operations ecryptfs_aops;
 extern int ecryptfs_verbosity;
diff --git a/fs/ecryptfs/super.c b/fs/ecryptfs/super.c
index eaa5daaf106e..7b3f0cc09a6f 100644
--- a/fs/ecryptfs/super.c
+++ b/fs/ecryptfs/super.c
@@ -168,7 +168,7 @@ out:
 	return rc;
 }
 
-struct super_operations ecryptfs_sops = {
+const struct super_operations ecryptfs_sops = {
 	.alloc_inode = ecryptfs_alloc_inode,
 	.destroy_inode = ecryptfs_destroy_inode,
 	.drop_inode = generic_delete_inode,
diff --git a/fs/efs/super.c b/fs/efs/super.c
index dfebf21289f4..c2235e46edcd 100644
--- a/fs/efs/super.c
+++ b/fs/efs/super.c
@@ -105,7 +105,7 @@ static int efs_remount(struct super_block *sb, int *flags, char *data)
 	return 0;
 }
 
-static struct super_operations efs_superblock_operations = {
+static const struct super_operations efs_superblock_operations = {
 	.alloc_inode	= efs_alloc_inode,
 	.destroy_inode	= efs_destroy_inode,
 	.read_inode	= efs_read_inode,
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index daaa243eee9b..a046a419d8af 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -231,7 +231,7 @@ static ssize_t ext2_quota_read(struct super_block *sb, int type, char *data, siz
 static ssize_t ext2_quota_write(struct super_block *sb, int type, const char *data, size_t len, loff_t off);
 #endif
 
-static struct super_operations ext2_sops = {
+static const struct super_operations ext2_sops = {
 	.alloc_inode	= ext2_alloc_inode,
 	.destroy_inode	= ext2_destroy_inode,
 	.read_inode	= ext2_read_inode,
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index a0623a84a4b2..4a4fcd6868c7 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -639,7 +639,7 @@ static struct quotactl_ops ext3_qctl_operations = {
 };
 #endif
 
-static struct super_operations ext3_sops = {
+static const struct super_operations ext3_sops = {
 	.alloc_inode	= ext3_alloc_inode,
 	.destroy_inode	= ext3_destroy_inode,
 	.read_inode	= ext3_read_inode,
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index c63a18b574dd..61c4718e4a53 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -690,7 +690,7 @@ static struct quotactl_ops ext4_qctl_operations = {
 };
 #endif
 
-static struct super_operations ext4_sops = {
+static const struct super_operations ext4_sops = {
 	.alloc_inode	= ext4_alloc_inode,
 	.destroy_inode	= ext4_destroy_inode,
 	.read_inode	= ext4_read_inode,
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index f268fec6ed0a..761073544217 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -618,7 +618,7 @@ int fat_sync_inode(struct inode *inode)
 EXPORT_SYMBOL_GPL(fat_sync_inode);
 
 static int fat_show_options(struct seq_file *m, struct vfsmount *mnt);
-static struct super_operations fat_sops = {
+static const struct super_operations fat_sops = {
 	.alloc_inode	= fat_alloc_inode,
 	.destroy_inode	= fat_destroy_inode,
 	.write_inode	= fat_write_inode,
diff --git a/fs/freevxfs/vxfs_super.c b/fs/freevxfs/vxfs_super.c
index ac28b0835ffc..647d600f0bc8 100644
--- a/fs/freevxfs/vxfs_super.c
+++ b/fs/freevxfs/vxfs_super.c
@@ -59,7 +59,7 @@ static void		vxfs_put_super(struct super_block *);
 static int		vxfs_statfs(struct dentry *, struct kstatfs *);
 static int		vxfs_remount(struct super_block *, int *, char *);
 
-static struct super_operations vxfs_super_ops = {
+static const struct super_operations vxfs_super_ops = {
 	.read_inode =		vxfs_read_inode,
 	.clear_inode =		vxfs_clear_inode,
 	.put_super =		vxfs_put_super,
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 220255110d76..5ab8e50e7808 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -446,7 +446,7 @@ static struct inode *get_root_inode(struct super_block *sb, unsigned mode)
 	return fuse_iget(sb, 1, 0, &attr);
 }
 
-static struct super_operations fuse_super_operations = {
+static const struct super_operations fuse_super_operations = {
 	.alloc_inode    = fuse_alloc_inode,
 	.destroy_inode  = fuse_destroy_inode,
 	.read_inode	= fuse_read_inode,
diff --git a/fs/gfs2/ops_super.c b/fs/gfs2/ops_super.c
index 47369d011214..b89999d3a767 100644
--- a/fs/gfs2/ops_super.c
+++ b/fs/gfs2/ops_super.c
@@ -468,7 +468,7 @@ static void gfs2_destroy_inode(struct inode *inode)
 	kmem_cache_free(gfs2_inode_cachep, inode);
 }
 
-struct super_operations gfs2_super_ops = {
+const struct super_operations gfs2_super_ops = {
 	.alloc_inode		= gfs2_alloc_inode,
 	.destroy_inode		= gfs2_destroy_inode,
 	.write_inode		= gfs2_write_inode,
diff --git a/fs/gfs2/ops_super.h b/fs/gfs2/ops_super.h
index 9de73f042f78..442a274c6272 100644
--- a/fs/gfs2/ops_super.h
+++ b/fs/gfs2/ops_super.h
@@ -12,6 +12,6 @@
 
 #include <linux/fs.h>
 
-extern struct super_operations gfs2_super_ops;
+extern const struct super_operations gfs2_super_ops;
 
 #endif /* __OPS_SUPER_DOT_H__ */
diff --git a/fs/hfs/super.c b/fs/hfs/super.c
index a36987966004..623f509f1d47 100644
--- a/fs/hfs/super.c
+++ b/fs/hfs/super.c
@@ -154,7 +154,7 @@ static void hfs_destroy_inode(struct inode *inode)
 	kmem_cache_free(hfs_inode_cachep, HFS_I(inode));
 }
 
-static struct super_operations hfs_super_operations = {
+static const struct super_operations hfs_super_operations = {
 	.alloc_inode	= hfs_alloc_inode,
 	.destroy_inode	= hfs_destroy_inode,
 	.write_inode	= hfs_write_inode,
diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c
index 0f513c6bf843..5a282f64c637 100644
--- a/fs/hfsplus/super.c
+++ b/fs/hfsplus/super.c
@@ -260,7 +260,7 @@ static int hfsplus_remount(struct super_block *sb, int *flags, char *data)
 	return 0;
 }
 
-static struct super_operations hfsplus_sops = {
+static const struct super_operations hfsplus_sops = {
 	.alloc_inode	= hfsplus_alloc_inode,
 	.destroy_inode	= hfsplus_destroy_inode,
 	.read_inode	= hfsplus_read_inode,
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index fec208db5e46..e965eb11d76f 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -309,7 +309,7 @@ static void hostfs_read_inode(struct inode *inode)
 	read_inode(inode);
 }
 
-static struct super_operations hostfs_sbops = {
+static const struct super_operations hostfs_sbops = {
 	.alloc_inode	= hostfs_alloc_inode,
 	.drop_inode	= generic_delete_inode,
 	.delete_inode   = hostfs_delete_inode,
diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c
index d4abc1a1d566..e0174e338526 100644
--- a/fs/hpfs/super.c
+++ b/fs/hpfs/super.c
@@ -426,7 +426,7 @@ static int hpfs_remount_fs(struct super_block *s, int *flags, char *data)
 
 /* Super operations */
 
-static struct super_operations hpfs_sops =
+static const struct super_operations hpfs_sops =
 {
 	.alloc_inode	= hpfs_alloc_inode,
 	.destroy_inode	= hpfs_destroy_inode,
diff --git a/fs/hppfs/hppfs_kern.c b/fs/hppfs/hppfs_kern.c
index bd7116816314..affb7412125e 100644
--- a/fs/hppfs/hppfs_kern.c
+++ b/fs/hppfs/hppfs_kern.c
@@ -43,7 +43,7 @@ static inline struct hppfs_inode_info *HPPFS_I(struct inode *inode)
 
 #define HPPFS_SUPER_MAGIC 0xb00000ee
 
-static struct super_operations hppfs_sbops;
+static const struct super_operations hppfs_sbops;
 
 static int is_pid(struct dentry *dentry)
 {
@@ -649,7 +649,7 @@ static void hppfs_destroy_inode(struct inode *inode)
 	kfree(HPPFS_I(inode));
 }
 
-static struct super_operations hppfs_sbops = {
+static const struct super_operations hppfs_sbops = {
 	.alloc_inode	= hppfs_alloc_inode,
 	.destroy_inode	= hppfs_destroy_inode,
 	.read_inode	= hppfs_read_inode,
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 26ba81fc7fab..8c718a3d413f 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -33,7 +33,7 @@
 /* some random number */
 #define HUGETLBFS_MAGIC	0x958458f6
 
-static struct super_operations hugetlbfs_ops;
+static const struct super_operations hugetlbfs_ops;
 static const struct address_space_operations hugetlbfs_aops;
 const struct file_operations hugetlbfs_file_operations;
 static const struct inode_operations hugetlbfs_dir_inode_operations;
@@ -580,7 +580,7 @@ static const struct inode_operations hugetlbfs_inode_operations = {
 	.setattr	= hugetlbfs_setattr,
 };
 
-static struct super_operations hugetlbfs_ops = {
+static const struct super_operations hugetlbfs_ops = {
 	.alloc_inode    = hugetlbfs_alloc_inode,
 	.destroy_inode  = hugetlbfs_destroy_inode,
 	.statfs		= hugetlbfs_statfs,
diff --git a/fs/inode.c b/fs/inode.c
index 5e32432a7608..5abb097ab1b0 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -1000,7 +1000,7 @@ EXPORT_SYMBOL(remove_inode_hash);
  */
 void generic_delete_inode(struct inode *inode)
 {
-	struct super_operations *op = inode->i_sb->s_op;
+	const struct super_operations *op = inode->i_sb->s_op;
 
 	list_del_init(&inode->i_list);
 	list_del_init(&inode->i_sb_list);
@@ -1093,7 +1093,7 @@ EXPORT_SYMBOL_GPL(generic_drop_inode);
  */
 static inline void iput_final(struct inode *inode)
 {
-	struct super_operations *op = inode->i_sb->s_op;
+	const struct super_operations *op = inode->i_sb->s_op;
 	void (*drop)(struct inode *) = generic_drop_inode;
 
 	if (op && op->drop_inode)
@@ -1113,7 +1113,7 @@ static inline void iput_final(struct inode *inode)
 void iput(struct inode *inode)
 {
 	if (inode) {
-		struct super_operations *op = inode->i_sb->s_op;
+		const struct super_operations *op = inode->i_sb->s_op;
 
 		BUG_ON(inode->i_state == I_CLEAR);
 
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index ea55b6c469ec..64a96cdfe3a4 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -106,7 +106,7 @@ static int isofs_remount(struct super_block *sb, int *flags, char *data)
 	return 0;
 }
 
-static struct super_operations isofs_sops = {
+static const struct super_operations isofs_sops = {
 	.alloc_inode	= isofs_alloc_inode,
 	.destroy_inode	= isofs_destroy_inode,
 	.read_inode	= isofs_read_inode,
diff --git a/fs/jffs/inode-v23.c b/fs/jffs/inode-v23.c
index fe3347defe6c..9602b925da08 100644
--- a/fs/jffs/inode-v23.c
+++ b/fs/jffs/inode-v23.c
@@ -54,7 +54,7 @@
 
 static int jffs_remove(struct inode *dir, struct dentry *dentry, int type);
 
-static struct super_operations jffs_ops;
+static const struct super_operations jffs_ops;
 static const struct file_operations jffs_file_operations;
 static const struct inode_operations jffs_file_inode_operations;
 static const struct file_operations jffs_dir_operations;
@@ -1774,7 +1774,7 @@ static int jffs_remount(struct super_block *sb, int *flags, char *data)
 	return 0;
 }
 
-static struct super_operations jffs_ops =
+static const struct super_operations jffs_ops =
 {
 	.read_inode	= jffs_read_inode,
 	.delete_inode 	= jffs_delete_inode,
diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c
index 08a0e6c49e61..cc7e8e71ad46 100644
--- a/fs/jffs2/super.c
+++ b/fs/jffs2/super.c
@@ -66,7 +66,7 @@ static int jffs2_sync_fs(struct super_block *sb, int wait)
 	return 0;
 }
 
-static struct super_operations jffs2_super_operations =
+static const struct super_operations jffs2_super_operations =
 {
 	.alloc_inode =	jffs2_alloc_inode,
 	.destroy_inode =jffs2_destroy_inode,
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index 846ac8f34513..52d73d54a931 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -46,7 +46,7 @@ MODULE_LICENSE("GPL");
 
 static struct kmem_cache * jfs_inode_cachep;
 
-static struct super_operations jfs_super_operations;
+static const struct super_operations jfs_super_operations;
 static struct export_operations jfs_export_operations;
 static struct file_system_type jfs_fs_type;
 
@@ -716,7 +716,7 @@ out:
 
 #endif
 
-static struct super_operations jfs_super_operations = {
+static const struct super_operations jfs_super_operations = {
 	.alloc_inode	= jfs_alloc_inode,
 	.destroy_inode	= jfs_destroy_inode,
 	.read_inode	= jfs_read_inode,
diff --git a/fs/libfs.c b/fs/libfs.c
index 0f4ee02e0b16..7d487047dbb8 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -195,11 +195,11 @@ const struct inode_operations simple_dir_inode_operations = {
  * will never be mountable)
  */
 int get_sb_pseudo(struct file_system_type *fs_type, char *name,
-	struct super_operations *ops, unsigned long magic,
+	const struct super_operations *ops, unsigned long magic,
 	struct vfsmount *mnt)
 {
 	struct super_block *s = sget(fs_type, NULL, set_anon_super, NULL);
-	static struct super_operations default_ops = {.statfs = simple_statfs};
+	static const struct super_operations default_ops = {.statfs = simple_statfs};
 	struct dentry *dentry;
 	struct inode *root;
 	struct qstr d_name = {.name = name, .len = strlen(name)};
diff --git a/fs/minix/inode.c b/fs/minix/inode.c
index e56822bff948..92e383af3709 100644
--- a/fs/minix/inode.c
+++ b/fs/minix/inode.c
@@ -95,7 +95,7 @@ static void destroy_inodecache(void)
 	kmem_cache_destroy(minix_inode_cachep);
 }
 
-static struct super_operations minix_sops = {
+static const struct super_operations minix_sops = {
 	.alloc_inode	= minix_alloc_inode,
 	.destroy_inode	= minix_destroy_inode,
 	.read_inode	= minix_read_inode,
diff --git a/fs/ncpfs/inode.c b/fs/ncpfs/inode.c
index 730433f3d237..14939ddf74f1 100644
--- a/fs/ncpfs/inode.c
+++ b/fs/ncpfs/inode.c
@@ -90,7 +90,7 @@ static int ncp_remount(struct super_block *sb, int *flags, char* data)
 	return 0;
 }
 
-static struct super_operations ncp_sops =
+static const struct super_operations ncp_sops =
 {
 	.alloc_inode	= ncp_alloc_inode,
 	.destroy_inode	= ncp_destroy_inode,
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 76b980097621..baa28860ad27 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -82,7 +82,7 @@ struct file_system_type nfs_xdev_fs_type = {
 	.fs_flags	= FS_RENAME_DOES_D_MOVE|FS_REVAL_DOT|FS_BINARY_MOUNTDATA,
 };
 
-static struct super_operations nfs_sops = {
+static const struct super_operations nfs_sops = {
 	.alloc_inode	= nfs_alloc_inode,
 	.destroy_inode	= nfs_destroy_inode,
 	.write_inode	= nfs_write_inode,
@@ -126,7 +126,7 @@ struct file_system_type nfs4_referral_fs_type = {
 	.fs_flags	= FS_RENAME_DOES_D_MOVE|FS_REVAL_DOT|FS_BINARY_MOUNTDATA,
 };
 
-static struct super_operations nfs4_sops = {
+static const struct super_operations nfs4_sops = {
 	.alloc_inode	= nfs_alloc_inode,
 	.destroy_inode	= nfs_destroy_inode,
 	.write_inode	= nfs_write_inode,
diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c
index babf94d90def..1594c90b7164 100644
--- a/fs/ntfs/super.c
+++ b/fs/ntfs/super.c
@@ -2699,7 +2699,7 @@ static int ntfs_statfs(struct dentry *dentry, struct kstatfs *sfs)
 /**
  * The complete super operations.
  */
-static struct super_operations ntfs_sops = {
+static const struct super_operations ntfs_sops = {
 	.alloc_inode	= ntfs_alloc_big_inode,	  /* VFS: Allocate new inode. */
 	.destroy_inode	= ntfs_destroy_big_inode, /* VFS: Deallocate inode. */
 #ifdef NTFS_RW
diff --git a/fs/ocfs2/dlm/dlmfs.c b/fs/ocfs2/dlm/dlmfs.c
index 84b33ffb42f1..de952eba29a9 100644
--- a/fs/ocfs2/dlm/dlmfs.c
+++ b/fs/ocfs2/dlm/dlmfs.c
@@ -61,7 +61,7 @@
 #define MLOG_MASK_PREFIX ML_DLMFS
 #include "cluster/masklog.h"
 
-static struct super_operations dlmfs_ops;
+static const struct super_operations dlmfs_ops;
 static const struct file_operations dlmfs_file_operations;
 static const struct inode_operations dlmfs_dir_inode_operations;
 static const struct inode_operations dlmfs_root_inode_operations;
@@ -560,7 +560,7 @@ static const struct inode_operations dlmfs_root_inode_operations = {
 	.rmdir		= simple_rmdir,
 };
 
-static struct super_operations dlmfs_ops = {
+static const struct super_operations dlmfs_ops = {
 	.statfs		= simple_statfs,
 	.alloc_inode	= dlmfs_alloc_inode,
 	.destroy_inode	= dlmfs_destroy_inode,
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 6e300a88a47e..6534f92424dd 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -116,7 +116,7 @@ static void ocfs2_destroy_inode(struct inode *inode);
 
 static unsigned long long ocfs2_max_file_offset(unsigned int blockshift);
 
-static struct super_operations ocfs2_sops = {
+static const struct super_operations ocfs2_sops = {
 	.statfs		= ocfs2_statfs,
 	.alloc_inode	= ocfs2_alloc_inode,
 	.destroy_inode	= ocfs2_destroy_inode,
diff --git a/fs/openpromfs/inode.c b/fs/openpromfs/inode.c
index 327807b86fa1..bde1c164417d 100644
--- a/fs/openpromfs/inode.c
+++ b/fs/openpromfs/inode.c
@@ -364,7 +364,7 @@ static int openprom_remount(struct super_block *sb, int *flags, char *data)
 	return 0;
 }
 
-static struct super_operations openprom_sops = { 
+static const struct super_operations openprom_sops = {
 	.alloc_inode	= openprom_alloc_inode,
 	.destroy_inode	= openprom_destroy_inode,
 	.read_inode	= openprom_read_inode,
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index e26945ba685b..f6722be37dde 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -132,7 +132,7 @@ static int proc_remount(struct super_block *sb, int *flags, char *data)
 	return 0;
 }
 
-static struct super_operations proc_sops = { 
+static const struct super_operations proc_sops = {
 	.alloc_inode	= proc_alloc_inode,
 	.destroy_inode	= proc_destroy_inode,
 	.read_inode	= proc_read_inode,
diff --git a/fs/qnx4/inode.c b/fs/qnx4/inode.c
index c047dc654d5c..83bc8e7824cd 100644
--- a/fs/qnx4/inode.c
+++ b/fs/qnx4/inode.c
@@ -30,7 +30,7 @@
 #define QNX4_VERSION  4
 #define QNX4_BMNAME   ".bitmap"
 
-static struct super_operations qnx4_sops;
+static const struct super_operations qnx4_sops;
 
 #ifdef CONFIG_QNX4FS_RW
 
@@ -129,7 +129,7 @@ static void qnx4_read_inode(struct inode *);
 static int qnx4_remount(struct super_block *sb, int *flags, char *data);
 static int qnx4_statfs(struct dentry *, struct kstatfs *);
 
-static struct super_operations qnx4_sops =
+static const struct super_operations qnx4_sops =
 {
 	.alloc_inode	= qnx4_alloc_inode,
 	.destroy_inode	= qnx4_destroy_inode,
diff --git a/fs/ramfs/inode.c b/fs/ramfs/inode.c
index 7a96b1d662a2..ff1f7639707b 100644
--- a/fs/ramfs/inode.c
+++ b/fs/ramfs/inode.c
@@ -40,7 +40,7 @@
 /* some random number */
 #define RAMFS_MAGIC	0x858458f6
 
-static struct super_operations ramfs_ops;
+static const struct super_operations ramfs_ops;
 static const struct inode_operations ramfs_dir_inode_operations;
 
 static struct backing_dev_info ramfs_backing_dev_info = {
@@ -155,7 +155,7 @@ static const struct inode_operations ramfs_dir_inode_operations = {
 	.rename		= simple_rename,
 };
 
-static struct super_operations ramfs_ops = {
+static const struct super_operations ramfs_ops = {
 	.statfs		= simple_statfs,
 	.drop_inode	= generic_delete_inode,
 };
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 58ad4551a7c1..f13a7f164dc6 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -593,7 +593,7 @@ static ssize_t reiserfs_quota_read(struct super_block *, int, char *, size_t,
 				   loff_t);
 #endif
 
-static struct super_operations reiserfs_sops = {
+static const struct super_operations reiserfs_sops = {
 	.alloc_inode = reiserfs_alloc_inode,
 	.destroy_inode = reiserfs_destroy_inode,
 	.write_inode = reiserfs_write_inode,
diff --git a/fs/romfs/inode.c b/fs/romfs/inode.c
index 1e712cc1693b..fd601014813e 100644
--- a/fs/romfs/inode.c
+++ b/fs/romfs/inode.c
@@ -110,7 +110,7 @@ romfs_checksum(void *data, int size)
 	return sum;
 }
 
-static struct super_operations romfs_ops;
+static const struct super_operations romfs_ops;
 
 static int romfs_fill_super(struct super_block *s, void *data, int silent)
 {
@@ -598,7 +598,7 @@ static int romfs_remount(struct super_block *sb, int *flags, char *data)
 	return 0;
 }
 
-static struct super_operations romfs_ops = {
+static const struct super_operations romfs_ops = {
 	.alloc_inode	= romfs_alloc_inode,
 	.destroy_inode	= romfs_destroy_inode,
 	.read_inode	= romfs_read_inode,
diff --git a/fs/smbfs/inode.c b/fs/smbfs/inode.c
index 84dfe3f3482e..5faba4f1c9ab 100644
--- a/fs/smbfs/inode.c
+++ b/fs/smbfs/inode.c
@@ -98,7 +98,7 @@ static int smb_remount(struct super_block *sb, int *flags, char *data)
 	return 0;
 }
 
-static struct super_operations smb_sops =
+static const struct super_operations smb_sops =
 {
 	.alloc_inode	= smb_alloc_inode,
 	.destroy_inode	= smb_destroy_inode,
diff --git a/fs/super.c b/fs/super.c
index 3e7458c2bb76..60b1e50cbf53 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -285,7 +285,7 @@ int fsync_super(struct super_block *sb)
  */
 void generic_shutdown_super(struct super_block *sb)
 {
-	struct super_operations *sop = sb->s_op;
+	const struct super_operations *sop = sb->s_op;
 
 	if (sb->s_root) {
 		shrink_dcache_for_umount(sb);
diff --git a/fs/sysfs/mount.c b/fs/sysfs/mount.c
index f6a87a824883..23a48a38e6af 100644
--- a/fs/sysfs/mount.c
+++ b/fs/sysfs/mount.c
@@ -21,7 +21,7 @@ struct kmem_cache *sysfs_dir_cachep;
 
 static void sysfs_clear_inode(struct inode *inode);
 
-static struct super_operations sysfs_ops = {
+static const struct super_operations sysfs_ops = {
 	.statfs		= simple_statfs,
 	.drop_inode	= sysfs_delete_inode,
 	.clear_inode	= sysfs_clear_inode,
diff --git a/fs/sysv/inode.c b/fs/sysv/inode.c
index 13dd75c4bc85..9311cac186fe 100644
--- a/fs/sysv/inode.c
+++ b/fs/sysv/inode.c
@@ -327,7 +327,7 @@ static void init_once(void *p, struct kmem_cache *cachep, unsigned long flags)
 		inode_init_once(&si->vfs_inode);
 }
 
-struct super_operations sysv_sops = {
+const struct super_operations sysv_sops = {
 	.alloc_inode	= sysv_alloc_inode,
 	.destroy_inode	= sysv_destroy_inode,
 	.read_inode	= sysv_read_inode,
diff --git a/fs/sysv/sysv.h b/fs/sysv/sysv.h
index a320edcf541e..5b4fedf17cc4 100644
--- a/fs/sysv/sysv.h
+++ b/fs/sysv/sysv.h
@@ -165,7 +165,7 @@ extern const struct inode_operations sysv_fast_symlink_inode_operations;
 extern const struct file_operations sysv_file_operations;
 extern const struct file_operations sysv_dir_operations;
 extern const struct address_space_operations sysv_aops;
-extern struct super_operations sysv_sops;
+extern const struct super_operations sysv_sops;
 extern struct dentry_operations sysv_dentry_operations;
 
 
diff --git a/fs/udf/super.c b/fs/udf/super.c
index 1dbc2955f02e..8672b88f7ff2 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -160,7 +160,7 @@ static void destroy_inodecache(void)
 }
 
 /* Superblock operations */
-static struct super_operations udf_sb_ops = {
+static const struct super_operations udf_sb_ops = {
 	.alloc_inode		= udf_alloc_inode,
 	.destroy_inode		= udf_destroy_inode,
 	.write_inode		= udf_write_inode,
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index cf74548aa85a..b5a6461ec66b 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -213,7 +213,7 @@ static void ufs_print_cylinder_stuff(struct super_block *sb,
 #  define ufs_print_cylinder_stuff(sb, cg) /**/
 #endif /* CONFIG_UFS_DEBUG */
 
-static struct super_operations ufs_super_ops;
+static const struct super_operations ufs_super_ops;
 
 static char error_buf[1024];
 
@@ -1264,7 +1264,7 @@ static ssize_t ufs_quota_read(struct super_block *, int, char *,size_t, loff_t);
 static ssize_t ufs_quota_write(struct super_block *, int, const char *, size_t, loff_t);
 #endif
 
-static struct super_operations ufs_super_ops = {
+static const struct super_operations ufs_super_ops = {
 	.alloc_inode	= ufs_alloc_inode,
 	.destroy_inode	= ufs_destroy_inode,
 	.read_inode	= ufs_read_inode,
diff --git a/include/linux/fs.h b/include/linux/fs.h
index bab891bb2270..86ec3f4a7da6 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -907,7 +907,7 @@ struct super_block {
 	unsigned char		s_dirt;
 	unsigned long long	s_maxbytes;	/* Max file size */
 	struct file_system_type	*s_type;
-	struct super_operations	*s_op;
+	const struct super_operations	*s_op;
 	struct dquot_operations	*dq_op;
  	struct quotactl_ops	*s_qcop;
 	struct export_operations *s_export_op;
@@ -1383,7 +1383,7 @@ struct super_block *sget(struct file_system_type *type,
 			int (*set)(struct super_block *,void *),
 			void *data);
 extern int get_sb_pseudo(struct file_system_type *, char *,
-	struct super_operations *ops, unsigned long,
+	const struct super_operations *ops, unsigned long,
 	struct vfsmount *mnt);
 extern int simple_set_mnt(struct vfsmount *mnt, struct super_block *sb);
 int __put_super(struct super_block *sb);
-- 
cgit v1.2.3