[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>
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 13d0b13..b9dc7aa 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -1117,14 +1117,14 @@
}
}
-struct file_operations random_fops = {
+const struct file_operations random_fops = {
.read = random_read,
.write = random_write,
.poll = random_poll,
.ioctl = random_ioctl,
};
-struct file_operations urandom_fops = {
+const struct file_operations urandom_fops = {
.read = urandom_read,
.write = random_write,
.ioctl = random_ioctl,