JFS_ERR_REMOUNT_RO
#define JFS_ERR_MASK (JFS_ERR_REMOUNT_RO|JFS_ERR_CONTINUE|JFS_ERR_PANIC)
{"remount-ro", JFS_ERR_REMOUNT_RO},
else if (sbi->flag & JFS_ERR_REMOUNT_RO) {
ctx->flag = JFS_ERR_REMOUNT_RO;