diff options
| -rw-r--r-- | regress/sys/kern/mmap3/mmaptest.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/regress/sys/kern/mmap3/mmaptest.c b/regress/sys/kern/mmap3/mmaptest.c index bf46847f10d..1318d46c41f 100644 --- a/regress/sys/kern/mmap3/mmaptest.c +++ b/regress/sys/kern/mmap3/mmaptest.c @@ -1,4 +1,4 @@ -/* $OpenBSD: mmaptest.c,v 1.5 2006/02/15 12:09:34 mickey Exp $ */ +/* $OpenBSD: mmaptest.c,v 1.6 2006/02/20 17:03:27 mickey Exp $ */ /* * Copyright (c) 2002 Marc Espie. * @@ -32,6 +32,7 @@ #include <err.h> #include <unistd.h> +#define AREA (16 * 4096) /* * Check for mmap/ftruncate interaction. Specifically, ftruncate on * a short file may lose modifications made through an mmapped area. @@ -41,34 +42,38 @@ main(int argc, char *argv[]) { int i; int fd; - char area[256]; + char area[AREA]; char *a2; - for (i = 0 ; i < 256; i++) + for (i = 0 ; i < AREA; i++) area[i] = 5; fd = open("test.out", O_WRONLY|O_CREAT|O_TRUNC, 0600); if (fd == -1) err(1, "open(test.out)"); - if (write(fd, area, 256) != 256) + if (write(fd, area, AREA) != AREA) err(1, "write"); if (close(fd)) err(1, "close"); fd = open("test.out", O_RDWR); if (fd == -1) err(1, "open(test.out) 2"); - a2 = mmap(NULL, 256, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0); + a2 = mmap(NULL, AREA, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0); if (!a2) err(1, "mmap"); a2[10] = 3; - msync(a2, 256, MS_SYNC|MS_INVALIDATE); + msync(a2, AREA, MS_SYNC|MS_INVALIDATE); + if (mlock(a2, AREA)) + err(1, "mlock"); if (ftruncate(fd, 128)) err(1, "ftruncate"); + if (munlock(a2, AREA)) + err(1, "munlock"); if (close(fd)) err(1, "close"); fd = open("test.out", O_RDONLY); if (fd == -1) err(1, "open(test.out) 3"); - if (read(fd, area, 256) != 128) + if (read(fd, area, AREA) != 128) err(1, "read"); if (area[10] != 3) errx(1, "area[10] != 3"); |