Fix various compile warnings

[splice.git] / splice-test4c.c

diff --git a/splice-test4c.c b/splice-test4c.c
index 1d10602a53a33bff3d88740a2f6d50cc7e198279..fc5617a7d9d9bed63df2b9ae1daeebff0d3db384 100644 (file)
--- a/splice-test4c.c
+++ b/splice-test4c.c
@@ -146,8 +146,10 @@ static int child(void)
                return error("connect");
 
        start_timing("Empty buffer");
-       for (i = 0; i < NR; i++)
-               write(sk, buffer, BUFSIZE);
+       for (i = 0; i < NR; i++) {
+               if (write(sk, buffer, BUFSIZE) != BUFSIZE)
+                       return error("empty buffer write");
+       }
        end_timing(NR*BUFSIZE, &r1);
 
        fd = open("largefile", O_RDONLY);
@@ -158,7 +160,8 @@ static int child(void)
        for (i = 0; i < NR; i++) {
                if (read(fd, buffer, BUFSIZE) != BUFSIZE)
                        return error("largefile read");
-               write(sk, buffer, BUFSIZE);
+               if (write(sk, buffer, BUFSIZE) != BUFSIZE)
+                       return error("largefile write");
        }
        end_timing(NR*BUFSIZE, &r2);
        close(fd);
@@ -297,7 +300,7 @@ static void setup_shared_var(void)
        BUG_ON(fd == -1);
        close(fd);
 
-       fd = open(".tmp_mmap", O_RDWR|O_CREAT|O_TRUNC);
+       fd = open(".tmp_mmap", O_RDWR|O_CREAT|O_TRUNC, 0644);
        BUG_ON(fd == -1);
        ret = write(fd, zerobuff, 4096);
        BUG_ON(ret != 4096);
@@ -349,7 +352,8 @@ static void lowprio_cycle_soak_loop(void)
         * We are a nice +19 SCHED_BATCH task:
         */
        BUG_ON(sched_setscheduler(0, SCHED_BATCH, &p) != 0);
-       nice(40);
+       if (nice(40) < 0)
+               perror("nice");
 
        rdtscll(t0);
        while (cycles >= 0) {
@@ -375,7 +379,9 @@ int main(__attribute__((__unused__)) int argc, __attribute__((__unused__)) char
                exit(0);
        }
 
-       nice(-20);
+       if (nice(-20) < 0)
+               perror("nice");
+
        child();
        kill(pid, SIGHUP);
        exit(0);