Commit 4c6cd03e authored Oct 13, 2020 by Barry Song Committed by Linus Torvalds Oct 13, 2020

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.

Signed-off-by: Barry Song <song.bao.hua@hisilicon.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Keith Busch <keith.busch@intel.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Link: https://lkml.kernel.org/r/20200821032546.19992-1-song.bao.hua@hisilicon.com


Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent eb1d7a65

mm/Kconfig

+2 −2

Original line number	Diff line number	Diff line
		@@ -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

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