ext4: constify static data that is never modified
Constify static data in ext4 that is never (intentionally) modified so
that it is placed in .rodata and benefits from memory protection.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
diff --git a/fs/ext4/sysfs.c b/fs/ext4/sysfs.c
index 42145be..d74dc5f 100644
--- a/fs/ext4/sysfs.c
+++ b/fs/ext4/sysfs.c
@@ -34,7 +34,7 @@
ptr_ext4_super_block_offset,
} attr_ptr_t;
-static const char *proc_dirname = "fs/ext4";
+static const char proc_dirname[] = "fs/ext4";
static struct proc_dir_entry *ext4_proc_root;
struct ext4_attr {
@@ -375,7 +375,7 @@
PROC_FILE_SHOW_DEFN(es_shrinker_info);
PROC_FILE_SHOW_DEFN(options);
-static struct ext4_proc_files {
+static const struct ext4_proc_files {
const char *name;
const struct file_operations *fops;
} proc_files[] = {
@@ -388,7 +388,7 @@
int ext4_register_sysfs(struct super_block *sb)
{
struct ext4_sb_info *sbi = EXT4_SB(sb);
- struct ext4_proc_files *p;
+ const struct ext4_proc_files *p;
int err;
sbi->s_kobj.kset = &ext4_kset;
@@ -412,7 +412,7 @@
void ext4_unregister_sysfs(struct super_block *sb)
{
struct ext4_sb_info *sbi = EXT4_SB(sb);
- struct ext4_proc_files *p;
+ const struct ext4_proc_files *p;
if (sbi->s_proc) {
for (p = proc_files; p->name; p++)