linux-kernel - [PATCH 2/2] selftests/mm: skip virtual_address

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Message-Id: <20240913022635.751505-2-zhangchunyan@iscas.ac.cn>
Date: Fri, 13 Sep 2024 10:26:35 +0800
From: Chunyan Zhang <zhangchunyan@...as.ac.cn>
To: Andrew Morton <akpm@...ux-foundation.org>,
	Shuah Khan <shuah@...nel.org>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>
Cc: Alexandre Ghiti <alex@...ti.fr>,
	Charlie Jenkins <charlie@...osinc.com>,
	linux-mm@...ck.org,
	linux-kselftest@...r.kernel.org,
	linux-riscv@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Chunyan Zhang <zhang.lyra@...il.com>
Subject: [PATCH 2/2] selftests/mm: skip virtual_address_range tests on riscv

RISC-V doesn't currently have the behavior of restricting the virtual
address space which virtual_address_range tests check, this will
cause the tests fail. So lets disable the whole test suite for riscv64
for now, not build it and run_vmtests.sh will skip it if it is not present.

Signed-off-by: Chunyan Zhang <zhangchunyan@...as.ac.cn>
---
 tools/testing/selftests/mm/Makefile       |  2 ++
 tools/testing/selftests/mm/run_vmtests.sh | 10 ++++++----
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/tools/testing/selftests/mm/Makefile b/tools/testing/selftests/mm/Makefile
index 84573ddfcfa2..912778347213 100644
--- a/tools/testing/selftests/mm/Makefile
+++ b/tools/testing/selftests/mm/Makefile
@@ -112,7 +112,9 @@ endif
 
 ifneq (,$(filter $(ARCH),arm64 ia64 mips64 parisc64 powerpc riscv64 s390x sparc64 x86_64))
 TEST_GEN_FILES += va_high_addr_switch
+ifneq ($(ARCH),riscv64)
 TEST_GEN_FILES += virtual_address_range
+endif
 TEST_GEN_FILES += write_to_hugetlbfs
 endif
 
diff --git a/tools/testing/selftests/mm/run_vmtests.sh b/tools/testing/selftests/mm/run_vmtests.sh
index 03ac4f2e1cce..7caa624a2e5a 100755
--- a/tools/testing/selftests/mm/run_vmtests.sh
+++ b/tools/testing/selftests/mm/run_vmtests.sh
@@ -347,10 +347,12 @@ if [ $VADDR64 -ne 0 ]; then
 	# allows high virtual address allocation requests independent
 	# of platform's physical memory.
 
-	prev_policy=$(cat /proc/sys/vm/overcommit_memory)
-	echo 1 > /proc/sys/vm/overcommit_memory
-	CATEGORY="hugevm" run_test ./virtual_address_range
-	echo $prev_policy > /proc/sys/vm/overcommit_memory
+	if [ -x ./virtual_address_range ]; then
+		prev_policy=$(cat /proc/sys/vm/overcommit_memory)
+		echo 1 > /proc/sys/vm/overcommit_memory
+		CATEGORY="hugevm" run_test ./virtual_address_range
+		echo $prev_policy > /proc/sys/vm/overcommit_memory
+	fi
 
 	# va high address boundary switch test
 	ARCH_ARM64="arm64"
-- 
2.34.1