filesetup: limit rand map to the actual IO size, if needed
authorJens Axboe <axboe@kernel.dk>
Fri, 11 Jan 2013 13:03:05 +0000 (14:03 +0100)
committerJens Axboe <axboe@kernel.dk>
Fri, 11 Jan 2013 13:03:05 +0000 (14:03 +0100)
No need allocating a larger map than we need.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
filesetup.c

index ab5cc48..478bda8 100644 (file)
@@ -956,7 +956,9 @@ int init_random_map(struct thread_data *td)
                return 0;
 
        for_each_file(td, f, i) {
-               blocks = (f->real_file_size + td->o.rw_min_bs - 1) /
+               uint64_t file_size = min(f->real_file_size, f->io_size);
+
+               blocks = (file_size + td->o.rw_min_bs - 1) /
                                (unsigned long long) td->o.rw_min_bs;
                if (td->o.random_generator == FIO_RAND_GEN_LFSR) {
                        unsigned long seed;