fs/proc: use __ro_after_init
/proc/self inode numbers, value of proc_inode_cache and st_nlink of
/proc/$TGID are fixed constants.
Link: http://lkml.kernel.org/r/20180103184707.GA31849@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/proc/self.c b/fs/proc/self.c
index d30627a..4d7d061 100644
--- a/fs/proc/self.c
+++ b/fs/proc/self.c
@@ -1,4 +1,5 @@
// SPDX-License-Identifier: GPL-2.0
+#include <linux/cache.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/pid_namespace.h>
@@ -30,7 +31,7 @@ static const struct inode_operations proc_self_inode_operations = {
.get_link = proc_self_get_link,
};
-static unsigned self_inum;
+static unsigned self_inum __ro_after_init;
int proc_setup_self(struct super_block *s)
{
