| From 293ff1da06748ed4c69be6ece262d42e562e7298 Mon Sep 17 00:00:00 2001 |
| From: Khem Raj <raj.khem@gmail.com> |
| Date: Fri, 8 Jan 2016 07:36:19 +0000 |
| Subject: [PATCH 31/32] vma03: fix page size offset as per page size alignment |
| |
| the offset the param of mmap2() doesn't align the page size, but, |
| this param allow must be a multiple of the page size as returned |
| by sysconf(_SC_PAGE_SIZE).meanwhile offset * 4096 must be a |
| multiple of the system page size, so modify the input param of offset |
| pgoff = (ULONG_MAX - 1)&(~((pgsz-1)>>12)); |
| |
| Signed-off-by: Chuang Dong <Chuang.Dong@windriver.com> |
| Signed-off-by: Khem Raj <raj.khem@gmail.com> |
| --- |
| testcases/kernel/mem/vma/vma03.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| diff --git a/testcases/kernel/mem/vma/vma03.c b/testcases/kernel/mem/vma/vma03.c |
| index ad8a7b4..a539233 100644 |
| --- a/testcases/kernel/mem/vma/vma03.c |
| +++ b/testcases/kernel/mem/vma/vma03.c |
| @@ -85,7 +85,7 @@ int main(int argc, char *argv[]) |
| if (fd == -1) |
| tst_brkm(TBROK | TERRNO, NULL, "open %s", TESTFILE); |
| |
| - pgoff = ULONG_MAX - 1; |
| + pgoff = (ULONG_MAX - 1)&(~((pgsz-1)>>12)); |
| map = mmap2(NULL, pgsz, PROT_READ | PROT_WRITE, MAP_PRIVATE, |
| fd, pgoff); |
| if (map == MAP_FAILED) |
| -- |
| 2.7.0 |
| |