From e6026f9c9e41226cbc0c526dac8ec5a5c355348a Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Wed, 12 Dec 2007 19:39:59 +0100 Subject: [PATCH] syslet: we have fls(), use it for rounding ring size up Signed-off-by: Jens Axboe --- engines/syslet-rw.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/engines/syslet-rw.c b/engines/syslet-rw.c index ab64054b..7bb1be83 100644 --- a/engines/syslet-rw.c +++ b/engines/syslet-rw.c @@ -16,6 +16,7 @@ #include "../fio.h" #include "../indirect.h" #include "../syslet.h" +#include "../fls.h" #ifdef FIO_HAVE_SYSLET @@ -243,14 +244,8 @@ static int fio_syslet_init(struct thread_data *td) * The ring needs to be a power-of-2, so round it up if we have to */ ring_nr = td->o.iodepth; - if (ring_nr & (ring_nr - 1)) { - int bits = 1; - - while (ring_nr >>= 1) - bits++; - - ring_nr = 1 << bits; - } + if (ring_nr & (ring_nr - 1)) + ring_nr = 1 << fls(ring_nr); ring_size = sizeof(struct syslet_ring) + ring_nr * sizeof(struct syslet_completion); -- 2.25.1