ltp: vma03 fix the alginment of page size

ltp: vma03 fix the alginment of page size

[cdong]

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Hi,
     This patch fix a vma03 bug,the info below detail it:

     the offset which is parameter of mmap2() function doesn't align the
     page size,but,this parameter is allowed 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 parameter
     pgoff = (ULONG_MAX - 1)&(~((pgsz-1)>>12));

     Regards
     Chuang

[-- Attachment #2: 0001-ltp-vma03-fix-the-alginment-of-page-size.patch --]
[-- Type: text/x-patch, Size: 3044 bytes --]

From 1685976a18cf9b4d255434731336a820578c7647 Mon Sep 17 00:00:00 2001
From: Chuang Dong <chuang.dong@windriver.com>
Date: Wed, 3 Jun 2015 15:53:30 +0800
Subject: [PATCH] ltp: vma03 fix the alginment of page size

the offset which is parameter of mmap2() function doesn't align the
page size,but,this parameter is allowed 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 parameter
pgoff = (ULONG_MAX - 1)&(~((pgsz-1)>>12));

Upstream-Status: Submitted

Signed-off-by: Chuang Dong <chuang.dong@windriver.com>
---
 ...-ltp-vma03-fix-the-alginment-of-page-size.patch | 32 ++++++++++++++++++++++
 meta/recipes-extended/ltp/ltp_20150119.bb          |  1 +
 2 files changed, 33 insertions(+)
 create mode 100644 meta/recipes-extended/ltp/ltp/0001-ltp-vma03-fix-the-alginment-of-page-size.patch

diff --git a/meta/recipes-extended/ltp/ltp/0001-ltp-vma03-fix-the-alginment-of-page-size.patch b/meta/recipes-extended/ltp/ltp/0001-ltp-vma03-fix-the-alginment-of-page-size.patch
new file mode 100644
index 0000000..0e5678d
--- /dev/null
+++ b/meta/recipes-extended/ltp/ltp/0001-ltp-vma03-fix-the-alginment-of-page-size.patch
@@ -0,0 +1,32 @@
+From dd53725b162707bd09db0dce5ae141c997042fa6 Mon Sep 17 00:00:00 2001
+From: Chuang Dong <chuang.dong@windriver.com>
+Date: Wed, 3 Jun 2015 15:44:35 +0800
+Subject: [PATCH] ltp: vma03 fix the alginment of page size
+
+the offset which is parameter of mmap2() function doesn't align the
+page size,but,this parameter is allowed 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 parameter
+pgoff = (ULONG_MAX - 1)&(~((pgsz-1)>>12));
+
+Signed-off-by: Chuang Dong <chuang.dong@windriver.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 270097b..72ac470 100644
+--- a/testcases/kernel/mem/vma/vma03.c
++++ b/testcases/kernel/mem/vma/vma03.c
+@@ -89,7 +89,7 @@ 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)
+-- 
+1.9.1
+
diff --git a/meta/recipes-extended/ltp/ltp_20150119.bb b/meta/recipes-extended/ltp/ltp_20150119.bb
index 90c5973..9c5c762 100644
--- a/meta/recipes-extended/ltp/ltp_20150119.bb
+++ b/meta/recipes-extended/ltp/ltp_20150119.bb
@@ -28,6 +28,7 @@ SRC_URI = "git://github.com/linux-test-project/ltp.git \
     file://make-setregid02-work.patch \
     file://add-knob-for-numa.patch \
     file://add-knob-for-tirpc.patch \
+    file://0001-ltp-vma03-fix-the-alginment-of-page-size.patch \
 "
 
 S = "${WORKDIR}/git"
-- 
1.9.1

Re: ltp: vma03 fix the alginment of page size

[Robert Yang]

Hi Dong,

Please don't send the patch as attachment, you can use git send-email
to send the patch. And please add the "Upstream-Status: Submitted"
inside the patch 0001-ltp-vma03-fix-the-alginment-of-page-size.patch,
right before the Signed-off-by line.

// Robert

On 06/03/2015 04:06 PM, cdong wrote:
> Hi,
>      This patch fix a vma03 bug,the info below detail it:
>
>      the offset which is parameter of mmap2() function doesn't align the
>      page size,but,this parameter is allowed 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 parameter
>      pgoff = (ULONG_MAX - 1)&(~((pgsz-1)>>12));
>
>      Regards
>      Chuang
>
>

Re: ltp: vma03 fix the alginment of page size

[wenzong fan]

Hi guys,

I have updated the patch format and sent V2 for reviewing...

Thanks
Wenzong

On 06/26/2015 02:39 PM, Robert Yang wrote:
>
> Hi Dong,
>
> Please don't send the patch as attachment, you can use git send-email
> to send the patch. And please add the "Upstream-Status: Submitted"
> inside the patch 0001-ltp-vma03-fix-the-alginment-of-page-size.patch,
> right before the Signed-off-by line.
>
> // Robert
>
> On 06/03/2015 04:06 PM, cdong wrote:
>> Hi,
>>      This patch fix a vma03 bug,the info below detail it:
>>
>>      the offset which is parameter of mmap2() function doesn't align the
>>      page size,but,this parameter is allowed 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 parameter
>>      pgoff = (ULONG_MAX - 1)&(~((pgsz-1)>>12));
>>
>>      Regards
>>      Chuang
>>
>>