[PATCH] mark struct file_operations const 7

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>

1 files changed, 3 insertions, 3 deletions

diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c
index 14a93a73841..89f933e8103 100644
--- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c
+++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c
@@ -197,7 +197,7 @@ out_free:
         return ret;
 }
 
-static struct file_operations ct_file_ops = {
+static const struct file_operations ct_file_ops = {
         .owner   = THIS_MODULE,
         .open    = ct_open,
         .read    = seq_read,
@@ -278,7 +278,7 @@ static int exp_open(struct inode *inode, struct file *file)
         return seq_open(file, &exp_seq_ops);
 }
 
-static struct file_operations ip_exp_file_ops = {
+static const struct file_operations ip_exp_file_ops = {
         .owner   = THIS_MODULE,
         .open    = exp_open,
         .read    = seq_read,
@@ -366,7 +366,7 @@ static int ct_cpu_seq_open(struct inode *inode, struct file *file)
         return seq_open(file, &ct_cpu_seq_ops);
 }
 
-static struct file_operations ct_cpu_seq_fops = {
+static const struct file_operations ct_cpu_seq_fops = {
         .owner   = THIS_MODULE,
         .open    = ct_cpu_seq_open,
         .read    = seq_read,