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From:   Keith Busch <keith.busch@intel.com>
To:     linux-mm@kvack.org, linux-kernel@vger.kernel.org
Cc:     Kirill Shutemov <kirill.shutemov@linux.intel.com>,
        Dave Hansen <dave.hansen@intel.com>,
        Dan Williams <dan.j.williams@intel.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Keith Busch <keith.busch@intel.com>
Subject: [PATCH 6/6] tools/gup_benchmark: Add MAP_HUGETLB option
Date:   Wed, 10 Oct 2018 13:56:05 -0600
Message-Id: <20181010195605.10689-6-keith.busch@intel.com>
In-Reply-To: <20181010195605.10689-1-keith.busch@intel.com>
References: <20181010195605.10689-1-keith.busch@intel.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

This patch adds a new option, '-H', to the gup benchmark to help compare how
hugetlb mapping pages compare with the default.

Signed-off-by: Keith Busch <keith.busch@intel.com>
---
 tools/testing/selftests/vm/gup_benchmark.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/vm/gup_benchmark.c b/tools/testing/selftests/vm/gup_benchmark.c
index 24528b54549d..c7b5934c6d7f 100644
--- a/tools/testing/selftests/vm/gup_benchmark.c
+++ b/tools/testing/selftests/vm/gup_benchmark.c
@@ -36,7 +36,7 @@ int main(int argc, char **argv)
 	char *file = "/dev/zero";
 	char *p;
 
-	while ((opt = getopt(argc, argv, "m:r:n:f:tTLUS")) != -1) {
+	while ((opt = getopt(argc, argv, "m:r:n:f:tTLUSH")) != -1) {
 		switch (opt) {
 		case 'm':
 			size = atoi(optarg) * MB;
@@ -69,6 +69,9 @@ int main(int argc, char **argv)
 			flags &= ~MAP_PRIVATE;
 			flags |= MAP_SHARED;
 			break;
+		case 'H':
+			flags |= MAP_HUGETLB;
+			break;
 		default:
 			return -1;
 		}
-- 
2.14.4