[PATCH] mark struct file_operations const 8

Many struct file_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>

2 files changed, 4 insertions, 4 deletions

diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index 7a81a8ee8544..8c34f1ca6c8c 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -1440,7 +1440,7 @@ static int rose_info_open(struct inode *inode, struct file *file)
         return seq_open(file, &rose_info_seqops);
 }
 
-static struct file_operations rose_info_fops = {
+static const struct file_operations rose_info_fops = {
         .owner = THIS_MODULE,
         .open = rose_info_open,
         .read = seq_read,
diff --git a/net/rose/rose_route.c b/net/rose/rose_route.c
index 0dcca4289eeb..1ddf7f5fa6db 100644
--- a/net/rose/rose_route.c
+++ b/net/rose/rose_route.c
@@ -1129,7 +1129,7 @@ static int rose_nodes_open(struct inode *inode, struct file *file)
         return seq_open(file, &rose_node_seqops);
 }
 
-struct file_operations rose_nodes_fops = {
+const struct file_operations rose_nodes_fops = {
         .owner = THIS_MODULE,
         .open = rose_nodes_open,
         .read = seq_read,
@@ -1211,7 +1211,7 @@ static int rose_neigh_open(struct inode *inode, struct file *file)
         return seq_open(file, &rose_neigh_seqops);
 }
 
-struct file_operations rose_neigh_fops = {
+const struct file_operations rose_neigh_fops = {
         .owner = THIS_MODULE,
         .open = rose_neigh_open,
         .read = seq_read,
@@ -1295,7 +1295,7 @@ static int rose_route_open(struct inode *inode, struct file *file)
         return seq_open(file, &rose_route_seqops);
 }
 
-struct file_operations rose_routes_fops = {
+const struct file_operations rose_routes_fops = {
         .owner = THIS_MODULE,
         .open = rose_route_open,
         .read = seq_read,