[FAULT_KMALLOC] = "kmalloc",
};
-static int erofs_build_fault_attr(struct erofs_sb_info *sbi,
- substring_t *args)
+static void __erofs_build_fault_attr(struct erofs_sb_info *sbi,
+ unsigned int rate)
{
struct erofs_fault_info *ffi = &sbi->fault_info;
- int rate = 0;
-
- if (args->from && match_int(args, &rate))
- return -EINVAL;
if (rate) {
atomic_set(&ffi->inject_ops, 0);
}
set_opt(sbi, FAULT_INJECTION);
+}
+
+static int erofs_build_fault_attr(struct erofs_sb_info *sbi,
+ substring_t *args)
+{
+ int rate = 0;
+
+ if (args->from && match_int(args, &rate))
+ return -EINVAL;
+
+ __erofs_build_fault_attr(sbi, rate);
return 0;
}
return sbi->fault_info.inject_rate;
}
#else
+static void __erofs_build_fault_attr(struct erofs_sb_info *sbi,
+ unsigned int rate)
+{
+}
+
static int erofs_build_fault_attr(struct erofs_sb_info *sbi,
substring_t *args)
{
static int erofs_remount(struct super_block *sb, int *flags, char *data)
{
+ struct erofs_sb_info *sbi = EROFS_SB(sb);
+ unsigned int org_mnt_opt = sbi->mount_opt;
+ unsigned int org_inject_rate = erofs_get_fault_rate(sbi);
+ int err;
+
BUG_ON(!sb_rdonly(sb));
+ err = parse_options(sb, data);
+ if (err)
+ goto out;
*flags |= SB_RDONLY;
return 0;
+out:
+ __erofs_build_fault_attr(sbi, org_inject_rate);
+ sbi->mount_opt = org_mnt_opt;
+
+ return err;
}
const struct super_operations erofs_sops = {