[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>

4 files changed, 4 insertions, 4 deletions

diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c
index 70061641ee59..c6568d637e1a 100644
--- a/net/decnet/af_decnet.c
+++ b/net/decnet/af_decnet.c
@@ -2331,7 +2331,7 @@ out_kfree:
         goto out;
 }
 
-static struct file_operations dn_socket_seq_fops = {
+static const struct file_operations dn_socket_seq_fops = {
         .owner          = THIS_MODULE,
         .open           = dn_socket_seq_open,
         .read           = seq_read,
diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c
index c5e28114beb8..2b2c7fe45a71 100644
--- a/net/decnet/dn_dev.c
+++ b/net/decnet/dn_dev.c
@@ -1442,7 +1442,7 @@ static int dn_dev_seq_open(struct inode *inode, struct file *file)
         return seq_open(file, &dn_dev_seq_ops);
 }
 
-static struct file_operations dn_dev_seq_fops = {
+static const struct file_operations dn_dev_seq_fops = {
         .owner   = THIS_MODULE,
         .open    = dn_dev_seq_open,
         .read    = seq_read,
diff --git a/net/decnet/dn_neigh.c b/net/decnet/dn_neigh.c
index 11d692dfb4f3..bf701cf5a386 100644
--- a/net/decnet/dn_neigh.c
+++ b/net/decnet/dn_neigh.c
@@ -598,7 +598,7 @@ out_kfree:
         goto out;
 }
 
-static struct file_operations dn_neigh_seq_fops = {
+static const struct file_operations dn_neigh_seq_fops = {
         .owner          = THIS_MODULE,
         .open           = dn_neigh_seq_open,
         .read           = seq_read,
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index efccc42ff1c6..c1b5502f195b 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -1751,7 +1751,7 @@ out_kfree:
         goto out;
 }
 
-static struct file_operations dn_rt_cache_seq_fops = {
+static const struct file_operations dn_rt_cache_seq_fops = {
         .owner   = THIS_MODULE,
         .open    = dn_rt_cache_seq_open,
         .read    = seq_read,