[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>

7 files changed, 9 insertions, 9 deletions

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 77e56f2b1af2..ea0755b09033 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2776,7 +2776,7 @@ out_kfree:
 	goto out;
 }
 
-static struct file_operations if6_fops = {
+static const struct file_operations if6_fops = {
 	.owner		= THIS_MODULE,
 	.open		= if6_seq_open,
 	.read		= seq_read,
diff --git a/net/ipv6/anycast.c b/net/ipv6/anycast.c
index e2dc1c41bbf5..6fb2e9d716c0 100644
--- a/net/ipv6/anycast.c
+++ b/net/ipv6/anycast.c
@@ -565,7 +565,7 @@ out_kfree:
 	goto out;
 }
 
-static struct file_operations ac6_seq_fops = {
+static const struct file_operations ac6_seq_fops = {
 	.owner		=	THIS_MODULE,
 	.open		=	ac6_seq_open,
 	.read		=	seq_read,
diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index 1551ab3890a3..c206a152ed9d 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -677,7 +677,7 @@ out_kfree:
 	goto out;
 }
 
-static struct file_operations ip6fl_seq_fops = {
+static const struct file_operations ip6fl_seq_fops = {
 	.owner		=	THIS_MODULE,
 	.open		=	ip6fl_seq_open,
 	.read		=	seq_read,
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index c9db5bc5b0f9..a8d6625ec782 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -2451,7 +2451,7 @@ out_kfree:
 	goto out;
 }
 
-static struct file_operations igmp6_mc_seq_fops = {
+static const struct file_operations igmp6_mc_seq_fops = {
 	.owner		=	THIS_MODULE,
 	.open		=	igmp6_mc_seq_open,
 	.read		=	seq_read,
@@ -2625,7 +2625,7 @@ out_kfree:
 	goto out;
 }
 
-static struct file_operations igmp6_mcf_seq_fops = {
+static const struct file_operations igmp6_mcf_seq_fops = {
 	.owner		=	THIS_MODULE,
 	.open		=	igmp6_mcf_seq_open,
 	.read		=	seq_read,
diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c
index 032ef95c5b00..c82257dd04b6 100644
--- a/net/ipv6/proc.c
+++ b/net/ipv6/proc.c
@@ -187,7 +187,7 @@ static int sockstat6_seq_open(struct inode *inode, struct file *file)
 	return single_open(file, sockstat6_seq_show, NULL);
 }
 
-static struct file_operations sockstat6_seq_fops = {
+static const struct file_operations sockstat6_seq_fops = {
 	.owner	 = THIS_MODULE,
 	.open	 = sockstat6_seq_open,
 	.read	 = seq_read,
@@ -200,7 +200,7 @@ static int snmp6_seq_open(struct inode *inode, struct file *file)
 	return single_open(file, snmp6_seq_show, PDE(inode)->data);
 }
 
-static struct file_operations snmp6_seq_fops = {
+static const struct file_operations snmp6_seq_fops = {
 	.owner	 = THIS_MODULE,
 	.open	 = snmp6_seq_open,
 	.read	 = seq_read,
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 16d4c63ff554..1f8f6275a7e4 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -1273,7 +1273,7 @@ out_kfree:
 	goto out;
 }
 
-static struct file_operations raw6_seq_fops = {
+static const struct file_operations raw6_seq_fops = {
 	.owner =	THIS_MODULE,
 	.open =		raw6_seq_open,
 	.read =		seq_read,
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index a415ac610e2d..0e1f4b2cd3dd 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -2345,7 +2345,7 @@ static int rt6_stats_seq_open(struct inode *inode, struct file *file)
 	return single_open(file, rt6_stats_seq_show, NULL);
 }
 
-static struct file_operations rt6_stats_seq_fops = {
+static const struct file_operations rt6_stats_seq_fops = {
 	.owner	 = THIS_MODULE,
 	.open	 = rt6_stats_seq_open,
 	.read	 = seq_read,