[PATCH] mark struct file_operations const 4

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.

[akpm@sdl.org: dvb fix]
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, 7 insertions, 7 deletions

diff --git a/drivers/macintosh/adb.c b/drivers/macintosh/adb.c
index 7cec6de5e2b0..f729eebf771f 100644
--- a/drivers/macintosh/adb.c
+++ b/drivers/macintosh/adb.c
@@ -885,7 +885,7 @@ out:
 	return ret;
 }
 
-static struct file_operations adb_fops = {
+static const struct file_operations adb_fops = {
 	.owner		= THIS_MODULE,
 	.llseek		= no_llseek,
 	.read		= adb_read,
diff --git a/drivers/macintosh/ans-lcd.c b/drivers/macintosh/ans-lcd.c
index 2b8a6e821d44..cdd5a0f72e3c 100644
--- a/drivers/macintosh/ans-lcd.c
+++ b/drivers/macintosh/ans-lcd.c
@@ -121,7 +121,7 @@ anslcd_open( struct inode * inode, struct file * file )
 	return 0;
 }
 
-struct file_operations anslcd_fops = {
+const struct file_operations anslcd_fops = {
 	.write	= anslcd_write,
 	.ioctl	= anslcd_ioctl,
 	.open	= anslcd_open,
diff --git a/drivers/macintosh/apm_emu.c b/drivers/macintosh/apm_emu.c
index 4300c628f8af..a6d50f4fabd7 100644
--- a/drivers/macintosh/apm_emu.c
+++ b/drivers/macintosh/apm_emu.c
@@ -501,7 +501,7 @@ static int apm_emu_get_info(char *buf, char **start, off_t fpos, int length)
 	return p - buf;
 }
 
-static struct file_operations apm_bios_fops = {
+static const struct file_operations apm_bios_fops = {
 	.owner		= THIS_MODULE,
 	.read		= do_read,
 	.poll		= do_poll,
diff --git a/drivers/macintosh/nvram.c b/drivers/macintosh/nvram.c
index 30791875fc97..b195d753d2ed 100644
--- a/drivers/macintosh/nvram.c
+++ b/drivers/macintosh/nvram.c
@@ -100,7 +100,7 @@ static int nvram_ioctl(struct inode *inode, struct file *file,
 	return 0;
 }
 
-struct file_operations nvram_fops = {
+const struct file_operations nvram_fops = {
 	.owner		= THIS_MODULE,
 	.llseek		= nvram_llseek,
 	.read		= read_nvram,
diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c
index 6f30459b9385..3096836d8bd3 100644
--- a/drivers/macintosh/smu.c
+++ b/drivers/macintosh/smu.c
@@ -1277,7 +1277,7 @@ static int smu_release(struct inode *inode, struct file *file)
 }
 
 
-static struct file_operations smu_device_fops = {
+static const struct file_operations smu_device_fops = {
 	.llseek		= no_llseek,
 	.read		= smu_read,
 	.write		= smu_write,
diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
index eb6653f69ce4..96bea4b62c43 100644
--- a/drivers/macintosh/via-pmu.c
+++ b/drivers/macintosh/via-pmu.c
@@ -2672,7 +2672,7 @@ pmu_ioctl(struct inode * inode, struct file *filp,
 	return error;
 }
 
-static struct file_operations pmu_device_fops = {
+static const struct file_operations pmu_device_fops = {
 	.read		= pmu_read,
 	.write		= pmu_write,
 	.poll		= pmu_fpoll,
diff --git a/drivers/macintosh/via-pmu68k.c b/drivers/macintosh/via-pmu68k.c
index 93e6ef9233f9..4f5b6fa196c5 100644
--- a/drivers/macintosh/via-pmu68k.c
+++ b/drivers/macintosh/via-pmu68k.c
@@ -1040,7 +1040,7 @@ static int pmu_ioctl(struct inode * inode, struct file *filp,
 	return -EINVAL;
 }
 
-static struct file_operations pmu_device_fops = {
+static const struct file_operations pmu_device_fops = {
 	.read		= pmu_read,
 	.write		= pmu_write,
 	.ioctl		= pmu_ioctl,