[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>
diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c
index bd1f7a2..269a1e7 100644
--- a/net/netfilter/xt_hashlimit.c
+++ b/net/netfilter/xt_hashlimit.c
@@ -37,7 +37,7 @@
/* need to declare this at the top */
static struct proc_dir_entry *hashlimit_procdir4;
static struct proc_dir_entry *hashlimit_procdir6;
-static struct file_operations dl_file_ops;
+static const struct file_operations dl_file_ops;
/* hash table crap */
struct dsthash_dst {
@@ -714,7 +714,7 @@
return ret;
}
-static struct file_operations dl_file_ops = {
+static const struct file_operations dl_file_ops = {
.owner = THIS_MODULE,
.open = dl_proc_open,
.read = seq_read,
