LU-16518 misc: fix clang build errors

[fs/lustre-release.git] / lustre / tests / badarea_io.c

diff --git a/lustre/tests/badarea_io.c b/lustre/tests/badarea_io.c
index e7395b2..663c881 100644 (file)
--- a/lustre/tests/badarea_io.c
+++ b/lustre/tests/badarea_io.c
@@ -34,9 +34,12 @@
 
 int main(int argc, char **argv)
 {
-       int rc;
-       int fd = open(argv[1], O_WRONLY);
+       ssize_t rc;
+       int fd;
+       void *volatile buf = (void *)0x4096000;
+       void *volatile fd_ptr;
 
+       fd = open(argv[1], O_WRONLY);
        if (fd == -1) {
                perror(argv[1]);
                goto read;
@@ -44,27 +47,28 @@ int main(int argc, char **argv)
 
        /* We need rc because Sles11 compiler warns against unchecked
         * return value of read and write */
-       rc = write(fd, (void *)0x4096000, 5);
+       rc = write(fd, buf, 5);
        if (rc != 5)
                perror("write badarea (Should have failed)");
 
-       rc = write(fd, &fd, 0);
+       fd_ptr = (void *)&fd;
+       rc = write(fd, fd_ptr, 0);
        if (rc != 0)
                perror("write zero bytes");
 
-       rc = write(fd, &fd, 1);
+       rc = write(fd, fd_ptr, 1);
        if (rc != 1)
                perror("write one byte");
 
-       rc = write(fd, &fd, 2UL*1024*1024);
+       rc = write(fd, fd_ptr, 2UL*1024*1024);
        if (rc != 2UL*1024*1024)
                perror("write 2M");
 
-       rc = write(fd, &fd, 2UL*1024*1024*1024);
-       if (rc != 2UL*1024*1024*1024)
-               perror("write 2G");
+       rc = write(fd, fd_ptr, 1UL*(1024+512)*1024*1024);
+       if (rc != 1UL*(1024+512)*1024*1024)
+               perror("write 1.5G");
 
-       rc = write(fd, &fd, -2);
+       rc = write(fd, fd_ptr, -2);
        if (rc != -2)
                perror("write -2");
 
@@ -74,7 +78,7 @@ read:
        fd = open(argv[1], O_RDONLY);
        if (fd == -1)
                return 0;
-       rc = read(fd, (void *)0x4096000, 5);
+       rc = read(fd, buf, 5);
        perror("read");
 
        close(fd);