From: Barry Song <song.bao.hua@xxxxxxxxxxxxx> Subject: mm/gup_benchmark: update the documentation in Kconfig In the beginning, mm/gup_benchmark.c supported get_user_pages_fast() only, but right now, it supports the benchmarking of a couple of get_user_pages() related calls like: * get_user_pages_fast() * get_user_pages() * pin_user_pages_fast() * pin_user_pages() The documentation is confusing and needs update. Link: https://lkml.kernel.org/r/20200821032546.19992-1-song.bao.hua@xxxxxxxxxxxxx Signed-off-by: Barry Song <song.bao.hua@xxxxxxxxxxxxx> Cc: John Hubbard <jhubbard@xxxxxxxxxx> Cc: Keith Busch <keith.busch@xxxxxxxxx> Cc: Ira Weiny <ira.weiny@xxxxxxxxx> Cc: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/mm/Kconfig~mm-gup_benchmark-update-the-documentation-in-kconfig +++ a/mm/Kconfig @@ -831,10 +831,10 @@ config PERCPU_STATS be used to help understand percpu memory usage. config GUP_BENCHMARK - bool "Enable infrastructure for get_user_pages_fast() benchmarking" + bool "Enable infrastructure for get_user_pages() and related calls benchmarking" help Provides /sys/kernel/debug/gup_benchmark that helps with testing - performance of get_user_pages_fast(). + performance of get_user_pages() and related calls. See tools/testing/selftests/vm/gup_benchmark.c _
