[PATCH] mark struct file_operations const 3

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>

drivers/infiniband/hw/ipath/ipath_diag.c

@@ -59,7 +59,7 @@ static ssize_t ipath_diag_read(struct file *fp, char __user *data,
 static ssize_t ipath_diag_write(struct file *fp, const char __user *data,
 				size_t count, loff_t *off);
 
-static struct file_operations diag_file_ops = {
+static const struct file_operations diag_file_ops = {
 	.owner = THIS_MODULE,
 	.write = ipath_diag_write,
 	.read = ipath_diag_read,
@@ -71,7 +71,7 @@ static ssize_t ipath_diagpkt_write(struct file *fp,
 				   const char __user *data,
 				   size_t count, loff_t *off);
 
-static struct file_operations diagpkt_file_ops = {
+static const struct file_operations diagpkt_file_ops = {
 	.owner = THIS_MODULE,
 	.write = ipath_diagpkt_write,
 };