mirror of
https://github.com/torvalds/linux
synced 2024-10-19 09:49:29 +00:00
82e717ad35
Add check_ksm_numa_merge() function to test that pages in different NUMA nodes are being handled properly. First, two duplicate pages are allocated in two separate NUMA nodes using the libnuma library. Since there is one unique page in each node, with merge_across_nodes = 0, there won't be any shared pages. If merge_across_nodes is set to 1, the pages will be treated as usual duplicate pages and will be merged. If NUMA config is not enabled or the number of NUMA nodes is less than two, then the test is skipped. The test is run as follows: ./ksm_tests -N Link: https://lkml.kernel.org/r/071c17b5b04ebb0dfeba137acc495e5dd9d2a719.1626252248.git.zhansayabagdaulet@gmail.com Signed-off-by: Zhansaya Bagdauletkyzy <zhansayabagdaulet@gmail.com> Reviewed-by: Pavel Tatashin <pasha.tatashin@soleen.com> Reviewed-by: Tyler Hicks <tyhicks@linux.microsoft.com> Cc: Hugh Dickins <hughd@google.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
164 lines
4.9 KiB
Makefile
164 lines
4.9 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
|
|
# Makefile for vm selftests
|
|
|
|
include local_config.mk
|
|
|
|
uname_M := $(shell uname -m 2>/dev/null || echo not)
|
|
MACHINE ?= $(shell echo $(uname_M) | sed -e 's/aarch64.*/arm64/' -e 's/ppc64.*/ppc64/')
|
|
|
|
# Without this, failed build products remain, with up-to-date timestamps,
|
|
# thus tricking Make (and you!) into believing that All Is Well, in subsequent
|
|
# make invocations:
|
|
.DELETE_ON_ERROR:
|
|
|
|
# Avoid accidental wrong builds, due to built-in rules working just a little
|
|
# bit too well--but not quite as well as required for our situation here.
|
|
#
|
|
# In other words, "make userfaultfd" is supposed to fail to build at all,
|
|
# because this Makefile only supports either "make" (all), or "make /full/path".
|
|
# However, the built-in rules, if not suppressed, will pick up CFLAGS and the
|
|
# initial LDLIBS (but not the target-specific LDLIBS, because those are only
|
|
# set for the full path target!). This causes it to get pretty far into building
|
|
# things despite using incorrect values such as an *occasionally* incomplete
|
|
# LDLIBS.
|
|
MAKEFLAGS += --no-builtin-rules
|
|
|
|
CFLAGS = -Wall -I ../../../../usr/include $(EXTRA_CFLAGS)
|
|
LDLIBS = -lrt -lpthread
|
|
TEST_GEN_FILES = compaction_test
|
|
TEST_GEN_FILES += gup_test
|
|
TEST_GEN_FILES += hmm-tests
|
|
TEST_GEN_FILES += hugepage-mmap
|
|
TEST_GEN_FILES += hugepage-shm
|
|
TEST_GEN_FILES += khugepaged
|
|
TEST_GEN_FILES += madv_populate
|
|
TEST_GEN_FILES += map_fixed_noreplace
|
|
TEST_GEN_FILES += map_hugetlb
|
|
TEST_GEN_FILES += map_populate
|
|
TEST_GEN_FILES += memfd_secret
|
|
TEST_GEN_FILES += mlock-random-test
|
|
TEST_GEN_FILES += mlock2-tests
|
|
TEST_GEN_FILES += mremap_dontunmap
|
|
TEST_GEN_FILES += mremap_test
|
|
TEST_GEN_FILES += on-fault-limit
|
|
TEST_GEN_FILES += thuge-gen
|
|
TEST_GEN_FILES += transhuge-stress
|
|
TEST_GEN_FILES += userfaultfd
|
|
TEST_GEN_FILES += split_huge_page_test
|
|
TEST_GEN_FILES += ksm_tests
|
|
|
|
ifeq ($(MACHINE),x86_64)
|
|
CAN_BUILD_I386 := $(shell ./../x86/check_cc.sh $(CC) ../x86/trivial_32bit_program.c -m32)
|
|
CAN_BUILD_X86_64 := $(shell ./../x86/check_cc.sh $(CC) ../x86/trivial_64bit_program.c)
|
|
CAN_BUILD_WITH_NOPIE := $(shell ./../x86/check_cc.sh $(CC) ../x86/trivial_program.c -no-pie)
|
|
|
|
TARGETS := protection_keys
|
|
BINARIES_32 := $(TARGETS:%=%_32)
|
|
BINARIES_64 := $(TARGETS:%=%_64)
|
|
|
|
ifeq ($(CAN_BUILD_WITH_NOPIE),1)
|
|
CFLAGS += -no-pie
|
|
endif
|
|
|
|
ifeq ($(CAN_BUILD_I386),1)
|
|
TEST_GEN_FILES += $(BINARIES_32)
|
|
endif
|
|
|
|
ifeq ($(CAN_BUILD_X86_64),1)
|
|
TEST_GEN_FILES += $(BINARIES_64)
|
|
endif
|
|
else
|
|
|
|
ifneq (,$(findstring $(MACHINE),ppc64))
|
|
TEST_GEN_FILES += protection_keys
|
|
endif
|
|
|
|
endif
|
|
|
|
ifneq (,$(filter $(MACHINE),arm64 ia64 mips64 parisc64 ppc64 riscv64 s390x sh64 sparc64 x86_64))
|
|
TEST_GEN_FILES += va_128TBswitch
|
|
TEST_GEN_FILES += virtual_address_range
|
|
TEST_GEN_FILES += write_to_hugetlbfs
|
|
endif
|
|
|
|
TEST_PROGS := run_vmtests.sh
|
|
|
|
TEST_FILES := test_vmalloc.sh
|
|
|
|
KSFT_KHDR_INSTALL := 1
|
|
include ../lib.mk
|
|
|
|
ifeq ($(MACHINE),x86_64)
|
|
BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32))
|
|
BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64))
|
|
|
|
define gen-target-rule-32
|
|
$(1) $(1)_32: $(OUTPUT)/$(1)_32
|
|
.PHONY: $(1) $(1)_32
|
|
endef
|
|
|
|
define gen-target-rule-64
|
|
$(1) $(1)_64: $(OUTPUT)/$(1)_64
|
|
.PHONY: $(1) $(1)_64
|
|
endef
|
|
|
|
ifeq ($(CAN_BUILD_I386),1)
|
|
$(BINARIES_32): CFLAGS += -m32 -mxsave
|
|
$(BINARIES_32): LDLIBS += -lrt -ldl -lm
|
|
$(BINARIES_32): $(OUTPUT)/%_32: %.c
|
|
$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@
|
|
$(foreach t,$(TARGETS),$(eval $(call gen-target-rule-32,$(t))))
|
|
endif
|
|
|
|
ifeq ($(CAN_BUILD_X86_64),1)
|
|
$(BINARIES_64): CFLAGS += -m64 -mxsave
|
|
$(BINARIES_64): LDLIBS += -lrt -ldl
|
|
$(BINARIES_64): $(OUTPUT)/%_64: %.c
|
|
$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@
|
|
$(foreach t,$(TARGETS),$(eval $(call gen-target-rule-64,$(t))))
|
|
endif
|
|
|
|
# x86_64 users should be encouraged to install 32-bit libraries
|
|
ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01)
|
|
all: warn_32bit_failure
|
|
|
|
warn_32bit_failure:
|
|
@echo "Warning: you seem to have a broken 32-bit build" 2>&1; \
|
|
echo "environment. This will reduce test coverage of 64-bit" 2>&1; \
|
|
echo "kernels. If you are using a Debian-like distribution," 2>&1; \
|
|
echo "try:"; 2>&1; \
|
|
echo ""; \
|
|
echo " apt-get install gcc-multilib libc6-i386 libc6-dev-i386"; \
|
|
echo ""; \
|
|
echo "If you are using a Fedora-like distribution, try:"; \
|
|
echo ""; \
|
|
echo " yum install glibc-devel.*i686"; \
|
|
exit 0;
|
|
endif
|
|
endif
|
|
|
|
$(OUTPUT)/mlock-random-test $(OUTPUT)/memfd_secret: LDLIBS += -lcap
|
|
|
|
$(OUTPUT)/gup_test: ../../../../mm/gup_test.h
|
|
|
|
$(OUTPUT)/hmm-tests: local_config.h
|
|
|
|
# HMM_EXTRA_LIBS may get set in local_config.mk, or it may be left empty.
|
|
$(OUTPUT)/hmm-tests: LDLIBS += $(HMM_EXTRA_LIBS)
|
|
|
|
$(OUTPUT)/ksm_tests: LDLIBS += -lnuma
|
|
|
|
local_config.mk local_config.h: check_config.sh
|
|
/bin/sh ./check_config.sh $(CC)
|
|
|
|
EXTRA_CLEAN += local_config.mk local_config.h
|
|
|
|
ifeq ($(HMM_EXTRA_LIBS),)
|
|
all: warn_missing_hugelibs
|
|
|
|
warn_missing_hugelibs:
|
|
@echo ; \
|
|
echo "Warning: missing libhugetlbfs support. Some HMM tests will be skipped." ; \
|
|
echo
|
|
endif
|