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Keeping both in one program makes the functional > tests harder to run and report individually, while run_vmtests.sh has to > invoke the program repeatedly with different options. > > Separate these roles into tools/mm/gup_bench for benchmarking and > tools/testing/selftests/mm/gup for functional testing. Move the shared > file and hugepage helpers to tools/lib/mm/ so both programs can use them > without duplicating the implementation. > It's been a while since I sent it, so just wanted to follow up and see if anyone has had a chance to look at the series. While here, I also wanted to address Sashiko's concern. > --- Patch [4]: [PATCH v7 4/6] tools/mm: move gup_test from selftests/ > mm to tools/mm --- > commit 92aa92be01707caef105298876458c303c6513c8 > Author: Sarthak Sharma > tools/mm: move gup_test from selftests/mm to tools/mm > This commit moves gup_test.c to gup_bench.c in the tools/mm directory > to begin separating benchmarking and functional testing components. It > also updates relevant Makefiles, gitignore, run_vmtests.sh, and > MAINTAINERS. > > tools/mm: move gup_test from selftests/mm to tools/mm > > Move tools/testing/selftests/mm/gup_test.c to tools/mm/gup_bench.c. > This is the first step in separating its benchmarking and > functional testing components. > Since the file and binary are being moved and renamed, should we also > update the references in mm/Kconfig and Documentation/core-api/ > pin_user_pages.rst? > For example, mm/Kconfig still points to the old path for > CONFIG_GUP_TEST: > See tools/testing/selftests/mm/gup_test.c > And Documentation/core-api/pin_user_pages.rst still references the old > file and binary name: > tools/testing/selftests/mm/gup_test.c > has the following new calls to exercise the new pin*() wrapper > functions: > * PIN_FAST_BENCHMARK (./gup_test -a) > * PIN_BASIC_TEST (./gup_test -b) > Could leaving these unchanged confuse users looking for the test or > trying to run the benchmark commands? Documentation/core-api/pin_user_pages.rst has been updated in the last patch, after the gup.c selftest is added. mm/Kconfig is to be updated, and I can send a fixup patch for this unless some review comes up that requires a respin.