From bd6b959a034cdcfcef010e56b139c609f56b83cf Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Fri, 24 Aug 2018 11:31:26 -0700 Subject: [PATCH] Add two assert statements in mark_random_map() Add two assert statements that verify whether mark_random_map() is used correctly. Signed-off-by: Bart Van Assche Signed-off-by: Jens Axboe --- io_u.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/io_u.c b/io_u.c index eed7d9d9..9b5f203c 100644 --- a/io_u.c +++ b/io_u.c @@ -41,9 +41,12 @@ static uint64_t mark_random_map(struct thread_data *td, struct io_u *io_u, block = (offset - f->file_offset) / (uint64_t) min_bs; nr_blocks = (buflen + min_bs - 1) / min_bs; + assert(nr_blocks > 0); - if (!(io_u->flags & IO_U_F_BUSY_OK)) + if (!(io_u->flags & IO_U_F_BUSY_OK)) { nr_blocks = axmap_set_nr(f->io_axmap, block, nr_blocks); + assert(nr_blocks > 0); + } if ((nr_blocks * min_bs) < buflen) buflen = nr_blocks * min_bs; -- 2.25.1