[PATCH] mark struct file_operations const 2

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.

[akpm@osdl.org: sparc64 fix]
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>

arch/powerpc/kernel/proc_ppc64.c

@@ -33,7 +33,7 @@ static ssize_t page_map_read( struct file *file, char __user *buf, size_t nbytes
 			      loff_t *ppos);
 static int     page_map_mmap( struct file *file, struct vm_area_struct *vma );
 
-static struct file_operations page_map_fops = {
+static const struct file_operations page_map_fops = {
 	.llseek	= page_map_seek,
 	.read	= page_map_read,
 	.mmap	= page_map_mmap