| Patrick Williams | d8c66bc | 2016-06-20 12:57:21 -0500 | [diff] [blame] | 1 | From 293ff1da06748ed4c69be6ece262d42e562e7298 Mon Sep 17 00:00:00 2001 |
| 2 | From: Khem Raj <raj.khem@gmail.com> |
| 3 | Date: Fri, 8 Jan 2016 07:36:19 +0000 |
| 4 | Subject: [PATCH 31/32] vma03: fix page size offset as per page size alignment |
| 5 | |
| 6 | the offset the param of mmap2() doesn't align the page size, but, |
| 7 | this param allow must be a multiple of the page size as returned |
| 8 | by sysconf(_SC_PAGE_SIZE).meanwhile offset * 4096 must be a |
| 9 | multiple of the system page size, so modify the input param of offset |
| 10 | pgoff = (ULONG_MAX - 1)&(~((pgsz-1)>>12)); |
| 11 | |
| 12 | Signed-off-by: Chuang Dong <Chuang.Dong@windriver.com> |
| 13 | Signed-off-by: Khem Raj <raj.khem@gmail.com> |
| 14 | --- |
| 15 | testcases/kernel/mem/vma/vma03.c | 2 +- |
| 16 | 1 file changed, 1 insertion(+), 1 deletion(-) |
| 17 | |
| 18 | diff --git a/testcases/kernel/mem/vma/vma03.c b/testcases/kernel/mem/vma/vma03.c |
| 19 | index ad8a7b4..a539233 100644 |
| 20 | --- a/testcases/kernel/mem/vma/vma03.c |
| 21 | +++ b/testcases/kernel/mem/vma/vma03.c |
| 22 | @@ -85,7 +85,7 @@ int main(int argc, char *argv[]) |
| 23 | if (fd == -1) |
| 24 | tst_brkm(TBROK | TERRNO, NULL, "open %s", TESTFILE); |
| 25 | |
| 26 | - pgoff = ULONG_MAX - 1; |
| 27 | + pgoff = (ULONG_MAX - 1)&(~((pgsz-1)>>12)); |
| 28 | map = mmap2(NULL, pgsz, PROT_READ | PROT_WRITE, MAP_PRIVATE, |
| 29 | fd, pgoff); |
| 30 | if (map == MAP_FAILED) |
| 31 | -- |
| 32 | 2.7.0 |
| 33 | |