[PATCH] mark struct file_operations const 5

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>

2 files changed, 3 insertions, 3 deletions

diff --git a/drivers/pci/hotplug/cpqphp_sysfs.c b/drivers/pci/hotplug/cpqphp_sysfs.c
index 634f74d919d3..a13abf55d784 100644
--- a/drivers/pci/hotplug/cpqphp_sysfs.c
+++ b/drivers/pci/hotplug/cpqphp_sysfs.c
@@ -202,7 +202,7 @@ static int release(struct inode *inode, struct file *file)
         return 0;
 }
 
-static struct file_operations debug_ops = {
+static const struct file_operations debug_ops = {
         .owner = THIS_MODULE,
         .open = open,
         .llseek = lseek,
diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
index 4a6760a3b31f..ed87aa59f0b1 100644
--- a/drivers/pci/proc.c
+++ b/drivers/pci/proc.c
@@ -287,7 +287,7 @@ static int proc_bus_pci_release(struct inode *inode, struct file *file)
 }
 #endif /* HAVE_PCI_MMAP */
 
-static struct file_operations proc_bus_pci_operations = {
+static const struct file_operations proc_bus_pci_operations = {
         .llseek         = proc_bus_pci_lseek,
         .read           = proc_bus_pci_read,
         .write          = proc_bus_pci_write,
@@ -456,7 +456,7 @@ static int proc_bus_pci_dev_open(struct inode *inode, struct file *file)
 {
         return seq_open(file, &proc_bus_pci_devices_op);
 }
-static struct file_operations proc_bus_pci_dev_operations = {
+static const struct file_operations proc_bus_pci_dev_operations = {
         .open           = proc_bus_pci_dev_open,
         .read           = seq_read,
         .llseek         = seq_lseek,