[PATCH] mark struct file_operations const 3

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>

10 files changed, 14 insertions, 14 deletions

diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c
index 9e48bb5a3c09..db1260f73f10 100644
--- a/drivers/isdn/capi/capi.c
+++ b/drivers/isdn/capi/capi.c
@@ -1003,7 +1003,7 @@ capi_release(struct inode *inode, struct file *file)
 	return 0;
 }
 
-static struct file_operations capi_fops =
+static const struct file_operations capi_fops =
 {
 	.owner		= THIS_MODULE,
 	.llseek		= no_llseek,
diff --git a/drivers/isdn/capi/kcapi_proc.c b/drivers/isdn/capi/kcapi_proc.c
index ca9dc00a45c4..31f4fd8b8b0a 100644
--- a/drivers/isdn/capi/kcapi_proc.c
+++ b/drivers/isdn/capi/kcapi_proc.c
@@ -113,14 +113,14 @@ static int seq_contrstats_open(struct inode *inode, struct file *file)
 	return seq_open(file, &seq_contrstats_ops);
 }
 
-static struct file_operations proc_controller_ops = {
+static const struct file_operations proc_controller_ops = {
 	.open		= seq_controller_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,
 	.release	= seq_release,
 };
 
-static struct file_operations proc_contrstats_ops = {
+static const struct file_operations proc_contrstats_ops = {
 	.open		= seq_contrstats_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,
@@ -218,14 +218,14 @@ seq_applstats_open(struct inode *inode, struct file *file)
 	return seq_open(file, &seq_applstats_ops);
 }
 
-static struct file_operations proc_applications_ops = {
+static const struct file_operations proc_applications_ops = {
 	.open		= seq_applications_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,
 	.release	= seq_release,
 };
 
-static struct file_operations proc_applstats_ops = {
+static const struct file_operations proc_applstats_ops = {
 	.open		= seq_applstats_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,
@@ -302,7 +302,7 @@ seq_capi_driver_open(struct inode *inode, struct file *file)
 	return err;
 }
 
-static struct file_operations proc_driver_ops = {
+static const struct file_operations proc_driver_ops = {
 	.open		= seq_capi_driver_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,
diff --git a/drivers/isdn/divert/divert_procfs.c b/drivers/isdn/divert/divert_procfs.c
index 06967da7c4a8..53a189003355 100644
--- a/drivers/isdn/divert/divert_procfs.c
+++ b/drivers/isdn/divert/divert_procfs.c
@@ -256,7 +256,7 @@ isdn_divert_ioctl(struct inode *inode, struct file *file,
 
 
 #ifdef CONFIG_PROC_FS
-static struct file_operations isdn_fops =
+static const struct file_operations isdn_fops =
 {
 	.owner          = THIS_MODULE,
 	.llseek         = no_llseek,
diff --git a/drivers/isdn/hardware/eicon/divamnt.c b/drivers/isdn/hardware/eicon/divamnt.c
index 77155d9f399b..6b2940ed0776 100644
--- a/drivers/isdn/hardware/eicon/divamnt.c
+++ b/drivers/isdn/hardware/eicon/divamnt.c
@@ -164,7 +164,7 @@ static ssize_t divas_maint_read(struct file *file, char __user *buf,
 	return (maint_read_write(buf, (int) count));
 }
 
-static struct file_operations divas_maint_fops = {
+static const struct file_operations divas_maint_fops = {
 	.owner   = THIS_MODULE,
 	.llseek  = no_llseek,
 	.read    = divas_maint_read,
diff --git a/drivers/isdn/hardware/eicon/divasi.c b/drivers/isdn/hardware/eicon/divasi.c
index fff0d89c806b..556b19615bc7 100644
--- a/drivers/isdn/hardware/eicon/divasi.c
+++ b/drivers/isdn/hardware/eicon/divasi.c
@@ -131,7 +131,7 @@ static void remove_um_idi_proc(void)
 	}
 }
 
-static struct file_operations divas_idi_fops = {
+static const struct file_operations divas_idi_fops = {
 	.owner   = THIS_MODULE,
 	.llseek  = no_llseek,
 	.read    = um_idi_read,
diff --git a/drivers/isdn/hardware/eicon/divasmain.c b/drivers/isdn/hardware/eicon/divasmain.c
index 91fc92c01afe..b365e44072c0 100644
--- a/drivers/isdn/hardware/eicon/divasmain.c
+++ b/drivers/isdn/hardware/eicon/divasmain.c
@@ -663,7 +663,7 @@ static unsigned int divas_poll(struct file *file, poll_table * wait)
 	return (POLLIN | POLLRDNORM);
 }
 
-static struct file_operations divas_fops = {
+static const struct file_operations divas_fops = {
 	.owner   = THIS_MODULE,
 	.llseek  = no_llseek,
 	.read    = divas_read,
diff --git a/drivers/isdn/hardware/eicon/divasproc.c b/drivers/isdn/hardware/eicon/divasproc.c
index 6a4373a4f1e8..0632a2606998 100644
--- a/drivers/isdn/hardware/eicon/divasproc.c
+++ b/drivers/isdn/hardware/eicon/divasproc.c
@@ -113,7 +113,7 @@ static int divas_close(struct inode *inode, struct file *file)
 	return (0);
 }
 
-static struct file_operations divas_fops = {
+static const struct file_operations divas_fops = {
 	.owner   = THIS_MODULE,
 	.llseek  = no_llseek,
 	.read    = divas_read,
diff --git a/drivers/isdn/hysdn/hysdn_procconf.c b/drivers/isdn/hysdn/hysdn_procconf.c
index 94a935089119..dc477e0aab0e 100644
--- a/drivers/isdn/hysdn/hysdn_procconf.c
+++ b/drivers/isdn/hysdn/hysdn_procconf.c
@@ -367,7 +367,7 @@ hysdn_conf_close(struct inode *ino, struct file *filep)
 /******************************************************/
 /* table for conf filesystem functions defined above. */
 /******************************************************/
-static struct file_operations conf_fops =
+static const struct file_operations conf_fops =
 {
 	.llseek         = no_llseek,
 	.read           = hysdn_conf_read,
diff --git a/drivers/isdn/hysdn/hysdn_proclog.c b/drivers/isdn/hysdn/hysdn_proclog.c
index 375d956884d7..f7e83a86f444 100644
--- a/drivers/isdn/hysdn/hysdn_proclog.c
+++ b/drivers/isdn/hysdn/hysdn_proclog.c
@@ -383,7 +383,7 @@ hysdn_log_poll(struct file *file, poll_table * wait)
 /**************************************************/
 /* table for log filesystem functions defined above. */
 /**************************************************/
-static struct file_operations log_fops =
+static const struct file_operations log_fops =
 {
 	.llseek         = no_llseek,
 	.read           = hysdn_log_read,
diff --git a/drivers/isdn/i4l/isdn_common.c b/drivers/isdn/i4l/isdn_common.c
index 6a2ef0a87ed9..9c926e41b114 100644
--- a/drivers/isdn/i4l/isdn_common.c
+++ b/drivers/isdn/i4l/isdn_common.c
@@ -1822,7 +1822,7 @@ isdn_close(struct inode *ino, struct file *filep)
 	return 0;
 }
 
-static struct file_operations isdn_fops =
+static const struct file_operations isdn_fops =
 {
 	.owner		= THIS_MODULE,
 	.llseek		= no_llseek,