Catch the case where size= is less than the minimum block size

[fio.git] / init.c

diff --git a/init.c b/init.c
index b330925c0067e856d3e9ddbda94d42013139bf45..aba7671c1402ff953dc5549e5303b0b9954c2193 100644 (file)
--- a/init.c
+++ b/init.c
@@ -621,6 +621,14 @@ static int fixup_options(struct thread_data *td)
        if (td->o.random_distribution != FIO_RAND_DIST_RANDOM)
                td->o.norandommap = 1;
 
+       /*
+        * If size is set but less than the min block size, complain
+        */
+       if (o->size && o->size < td_min_bs(td)) {
+               log_err("fio: size too small, must be larger than the IO size: %llu\n", (unsigned long long) o->size);
+               ret = 1;
+       }
+
        return ret;
 }