fs: constify tree_descr arrays passed to simple_fill_super()
simple_fill_super() is passed an array of tree_descr structures which
describe the files to create in the filesystem's root directory. Since
these arrays are never modified intentionally, they should be 'const' so
that they are placed in .rodata and benefit from memory protection.
This patch updates the function signature and all users, and also
constifies tree_descr.name.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
index bee1a36..f471809 100644
--- a/fs/binfmt_misc.c
+++ b/fs/binfmt_misc.c
@@ -818,7 +818,7 @@ static const struct super_operations s_ops = {
static int bm_fill_super(struct super_block *sb, void *data, int silent)
{
int err;
- static struct tree_descr bm_files[] = {
+ static const struct tree_descr bm_files[] = {
[2] = {"status", &bm_status_operations, S_IWUSR|S_IRUGO},
[3] = {"register", &bm_register_operations, S_IWUSR},
/* last one */ {""}