[PATCH] mark struct file_operations const 6

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>

13 files changed, 13 insertions, 13 deletions

diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c
index b091a0fc4eb..eb766c3af1c 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -197,7 +197,7 @@ static struct class_device_attribute *twa_host_attrs[] = {
 };
 
 /* File operations struct for character device */
-static struct file_operations twa_fops = {
+static const struct file_operations twa_fops = {
 	.owner		= THIS_MODULE,
 	.ioctl		= twa_chrdev_ioctl,
 	.open		= twa_chrdev_open,
diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c
index e1b44d6c0c3..bf5d63e1bee 100644
--- a/drivers/scsi/3w-xxxx.c
+++ b/drivers/scsi/3w-xxxx.c
@@ -1040,7 +1040,7 @@ static int tw_chrdev_open(struct inode *inode, struct file *file)
 } /* End tw_chrdev_open() */
 
 /* File operations struct for character device */
-static struct file_operations tw_fops = {
+static const struct file_operations tw_fops = {
 	.owner		= THIS_MODULE,
 	.ioctl		= tw_chrdev_ioctl,
 	.open		= tw_chrdev_open,
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index a9734e08fe2..0f948c2fb60 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -774,7 +774,7 @@ static struct class_device_attribute *aac_attrs[] = {
 };
 
 
-static struct file_operations aac_cfg_fops = {
+static const struct file_operations aac_cfg_fops = {
 	.owner		= THIS_MODULE,
 	.ioctl		= aac_cfg_ioctl,
 #ifdef CONFIG_COMPAT
diff --git a/drivers/scsi/ch.c b/drivers/scsi/ch.c
index f6caa430776..d02759f1346 100644
--- a/drivers/scsi/ch.c
+++ b/drivers/scsi/ch.c
@@ -129,7 +129,7 @@ static struct scsi_driver ch_template =
 	},
 };
 
-static struct file_operations changer_fops =
+static const struct file_operations changer_fops =
 {
 	.owner        = THIS_MODULE,
 	.open         = ch_open,
diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c
index 365db537a28..cd36e81b2d9 100644
--- a/drivers/scsi/dpt_i2o.c
+++ b/drivers/scsi/dpt_i2o.c
@@ -116,7 +116,7 @@ static int sys_tbl_len = 0;
 static adpt_hba* hba_chain = NULL;
 static int hba_count = 0;
 
-static struct file_operations adpt_fops = {
+static const struct file_operations adpt_fops = {
 	.ioctl		= adpt_ioctl,
 	.open		= adpt_open,
 	.release	= adpt_close
diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c
index 4c698a71f66..a1992928e67 100644
--- a/drivers/scsi/gdth.c
+++ b/drivers/scsi/gdth.c
@@ -687,7 +687,7 @@ MODULE_AUTHOR("Achim Leubner");
 MODULE_LICENSE("GPL");
 
 /* ioctl interface */
-static struct file_operations gdth_fops = {
+static const struct file_operations gdth_fops = {
     .ioctl   = gdth_ioctl,
     .open    = gdth_open,
     .release = gdth_close,
diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index 77d9d3804cc..808a1b8c404 100644
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -92,7 +92,7 @@ static struct mega_hbas mega_hbas[MAX_CONTROLLERS];
 /*
  * The File Operations structure for the serial/ioctl interface of the driver
  */
-static struct file_operations megadev_fops = {
+static const struct file_operations megadev_fops = {
 	.owner		= THIS_MODULE,
 	.ioctl		= megadev_ioctl,
 	.open		= megadev_open,
diff --git a/drivers/scsi/megaraid/megaraid_mm.c b/drivers/scsi/megaraid/megaraid_mm.c
index c1ff20c4747..f33a678f089 100644
--- a/drivers/scsi/megaraid/megaraid_mm.c
+++ b/drivers/scsi/megaraid/megaraid_mm.c
@@ -67,7 +67,7 @@ static struct list_head adapters_list_g;
 
 static wait_queue_head_t wait_q;
 
-static struct file_operations lsi_fops = {
+static const struct file_operations lsi_fops = {
 	.open	= mraid_mm_open,
 	.ioctl	= mraid_mm_ioctl,
 #ifdef CONFIG_COMPAT
diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c
index b5bdd0d7a8b..15e24fcc84f 100644
--- a/drivers/scsi/megaraid/megaraid_sas.c
+++ b/drivers/scsi/megaraid/megaraid_sas.c
@@ -2913,7 +2913,7 @@ megasas_mgmt_compat_ioctl(struct file *file, unsigned int cmd,
 /*
  * File operations structure for management interface
  */
-static struct file_operations megasas_mgmt_fops = {
+static const struct file_operations megasas_mgmt_fops = {
 	.owner = THIS_MODULE,
 	.open = megasas_mgmt_open,
 	.release = megasas_mgmt_release,
diff --git a/drivers/scsi/osst.c b/drivers/scsi/osst.c
index bd6bbf61adb..9668b73872c 100644
--- a/drivers/scsi/osst.c
+++ b/drivers/scsi/osst.c
@@ -5522,7 +5522,7 @@ __setup("osst=", osst_setup);
 
 #endif
 
-static struct file_operations osst_fops = {
+static const struct file_operations osst_fops = {
 	.owner =        THIS_MODULE,
 	.read =         osst_read,
 	.write =        osst_write,
diff --git a/drivers/scsi/scsi_proc.c b/drivers/scsi/scsi_proc.c
index 524a5f7a519..69d6e9b198c 100644
--- a/drivers/scsi/scsi_proc.c
+++ b/drivers/scsi/scsi_proc.c
@@ -308,7 +308,7 @@ static int proc_scsi_open(struct inode *inode, struct file *file)
 	return single_open(file, proc_scsi_show, NULL);
 }
 
-static struct file_operations proc_scsi_operations = {
+static const struct file_operations proc_scsi_operations = {
 	.open		= proc_scsi_open,
 	.read		= seq_read,
 	.write		= proc_scsi_write,
diff --git a/drivers/scsi/scsi_tgt_if.c b/drivers/scsi/scsi_tgt_if.c
index 37bbfbdb870..f2344ab8def 100644
--- a/drivers/scsi/scsi_tgt_if.c
+++ b/drivers/scsi/scsi_tgt_if.c
@@ -280,7 +280,7 @@ static int tgt_open(struct inode *inode, struct file *file)
 	return 0;
 }
 
-static struct file_operations tgt_fops = {
+static const struct file_operations tgt_fops = {
 	.owner		= THIS_MODULE,
 	.open		= tgt_open,
 	.poll		= tgt_poll,
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index 16e279be4a3..3d2e02381e9 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -3864,7 +3864,7 @@ __setup("st=", st_setup);
 
 #endif
 
-static struct file_operations st_fops =
+static const struct file_operations st_fops =
 {
 	.owner =	THIS_MODULE,
 	.read =		st_read,