[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>
diff --git a/drivers/media/video/saa7134/saa7134-video.c b/drivers/media/video/saa7134/saa7134-video.c
index 830617e..f2cb630 100644
--- a/drivers/media/video/saa7134/saa7134-video.c
+++ b/drivers/media/video/saa7134/saa7134-video.c
@@ -2336,7 +2336,7 @@
return video_usercopy(inode, file, cmd, arg, radio_do_ioctl);
}
-static struct file_operations video_fops =
+static const struct file_operations video_fops =
{
.owner = THIS_MODULE,
.open = video_open,
@@ -2349,7 +2349,7 @@
.llseek = no_llseek,
};
-static struct file_operations radio_fops =
+static const struct file_operations radio_fops =
{
.owner = THIS_MODULE,
.open = video_open,