From 34851ad5ffacf9f4f8a7f23ee2edb17281b917a0 Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Thu, 2 Nov 2017 12:26:39 -0600
Subject: [PATCH] io_u_queue: convert rings to bool

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 backend.c    |  6 +++---
 io_u_queue.c | 12 ++++++------
 io_u_queue.h |  5 +++--
 3 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/backend.c b/backend.c
index d3e9bf8160..7cf9b38270 100644
--- a/backend.c
+++ b/backend.c
@@ -1203,9 +1203,9 @@ static int init_io_u(struct thread_data *td)
 		data_xfer = 0;
 
 	err = 0;
-	err += io_u_rinit(&td->io_u_requeues, td->o.iodepth);
-	err += io_u_qinit(&td->io_u_freelist, td->o.iodepth);
-	err += io_u_qinit(&td->io_u_all, td->o.iodepth);
+	err += !io_u_rinit(&td->io_u_requeues, td->o.iodepth);
+	err += !io_u_qinit(&td->io_u_freelist, td->o.iodepth);
+	err += !io_u_qinit(&td->io_u_all, td->o.iodepth);
 
 	if (err) {
 		log_err("fio: failed setting up IO queues\n");
diff --git a/io_u_queue.c b/io_u_queue.c
index 9994c7879a..8cf4c8c3d7 100644
--- a/io_u_queue.c
+++ b/io_u_queue.c
@@ -1,15 +1,15 @@
 #include <stdlib.h>
 #include "io_u_queue.h"
 
-int io_u_qinit(struct io_u_queue *q, unsigned int nr)
+bool io_u_qinit(struct io_u_queue *q, unsigned int nr)
 {
 	q->io_us = calloc(nr, sizeof(struct io_u *));
 	if (!q->io_us)
-		return 1;
+		return false;
 
 	q->nr = 0;
 	q->max = nr;
-	return 0;
+	return true;
 }
 
 void io_u_qexit(struct io_u_queue *q)
@@ -17,7 +17,7 @@ void io_u_qexit(struct io_u_queue *q)
 	free(q->io_us);
 }
 
-int io_u_rinit(struct io_u_ring *ring, unsigned int nr)
+bool io_u_rinit(struct io_u_ring *ring, unsigned int nr)
 {
 	ring->max = nr + 1;
 	if (ring->max & (ring->max - 1)) {
@@ -32,10 +32,10 @@ int io_u_rinit(struct io_u_ring *ring, unsigned int nr)
 
 	ring->ring = calloc(ring->max, sizeof(struct io_u *));
 	if (!ring->ring)
-		return 1;
+		return false;
 
 	ring->head = ring->tail = 0;
-	return 0;
+	return true;
 }
 
 void io_u_rexit(struct io_u_ring *ring)
diff --git a/io_u_queue.h b/io_u_queue.h
index 118e59342b..b5b8d2faf3 100644
--- a/io_u_queue.h
+++ b/io_u_queue.h
@@ -2,6 +2,7 @@
 #define FIO_IO_U_QUEUE
 
 #include <assert.h>
+#include "lib/types.h"
 
 struct io_u;
 
@@ -42,7 +43,7 @@ static inline int io_u_qempty(const struct io_u_queue *q)
 #define io_u_qiter(q, io_u, i)	\
 	for (i = 0; i < (q)->nr && (io_u = (q)->io_us[i]); i++)
 
-int io_u_qinit(struct io_u_queue *q, unsigned int nr);
+bool io_u_qinit(struct io_u_queue *q, unsigned int nr);
 void io_u_qexit(struct io_u_queue *q);
 
 struct io_u_ring {
@@ -52,7 +53,7 @@ struct io_u_ring {
 	struct io_u **ring;
 };
 
-int io_u_rinit(struct io_u_ring *ring, unsigned int nr);
+bool io_u_rinit(struct io_u_ring *ring, unsigned int nr);
 void io_u_rexit(struct io_u_ring *ring);
 
 static inline void io_u_rpush(struct io_u_ring *r, struct io_u *io_u)