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| author | David Hildenbrand <david@redhat.com> | 2022-09-27 13:01:18 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-11-09 02:37:15 +0100 |
| commit | e487ebbd12986facc7f77129d3ca80de84841170 (patch) | |
| tree | 6e47e692186cefa88ba082aecf9c8541d3dc3581 /tools/testing/selftests/vm/Makefile | |
| parent | selftests/vm: anon_cow: hugetlb tests (diff) | |
| download | linux-e487ebbd12986facc7f77129d3ca80de84841170.tar.xz linux-e487ebbd12986facc7f77129d3ca80de84841170.zip | |
selftests/vm: anon_cow: add liburing test cases
io_uring provides a simple mechanism to test long-term, R/W GUP pins
-- via fixed buffers -- and can be used to verify that GUP pins stay
in sync with the pages in the page table even if a page would
temporarily get mapped R/O or concurrent fork() could accidentially
end up sharing pinned pages with the child.
Note that this essentially re-introduces local_config support that was
removed recently in commit 6f83d6c74ea5 ("Kselftests: remove support of
libhugetlbfs from kselftests").
[david@redhat.com: s/size_t/ssize_t/ on `cur', `total'.]
Link: https://lkml.kernel.org/r/445fe1ae-9e22-0d1d-4d09-272231d2f84a@redhat.com
Link: https://lkml.kernel.org/r/20220927110120.106906-6-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Christoph von Recklinghausen <crecklin@redhat.com>
Cc: Don Dutile <ddutile@redhat.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Nadav Amit <namit@vmware.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'tools/testing/selftests/vm/Makefile')
| -rw-r--r-- | tools/testing/selftests/vm/Makefile | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/tools/testing/selftests/vm/Makefile b/tools/testing/selftests/vm/Makefile index ad07d7a84c3e..00920cb8b499 100644 --- a/tools/testing/selftests/vm/Makefile +++ b/tools/testing/selftests/vm/Makefile @@ -1,7 +1,9 @@ # SPDX-License-Identifier: GPL-2.0 # Makefile for vm selftests -LOCAL_HDRS += $(top_srcdir)/mm/gup_test.h +LOCAL_HDRS += $(selfdir)/vm/local_config.h $(top_srcdir)/mm/gup_test.h + +include local_config.mk uname_M := $(shell uname -m 2>/dev/null || echo not) MACHINE ?= $(shell echo $(uname_M) | sed -e 's/aarch64.*/arm64/' -e 's/ppc64.*/ppc64/') @@ -152,8 +154,25 @@ warn_32bit_failure: endif endif +# ANON_COW_EXTRA_LIBS may get set in local_config.mk, or it may be left empty. +$(OUTPUT)/anon_cow: LDLIBS += $(ANON_COW_EXTRA_LIBS) + $(OUTPUT)/mlock-random-test $(OUTPUT)/memfd_secret: LDLIBS += -lcap $(OUTPUT)/ksm_tests: LDLIBS += -lnuma $(OUTPUT)/migration: LDLIBS += -lnuma + +local_config.mk local_config.h: check_config.sh + /bin/sh ./check_config.sh $(CC) + +EXTRA_CLEAN += local_config.mk local_config.h + +ifeq ($(ANON_COW_EXTRA_LIBS),) +all: warn_missing_liburing + +warn_missing_liburing: + @echo ; \ + echo "Warning: missing liburing support. Some COW tests will be skipped." ; \ + echo +endif |