The patch titled
Subject: mm/gup_benchmark: update the documentation in Kconfig
has been added to the -mm tree. Its filename is
mm-gup_benchmark-update-the-documentation-in-kconfig.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-gup_benchmark-update-the-documentation-in-kconfig.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-gup_benchmark-update-the-documentation-in-kconfig.patch
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------------------------------------------------------
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
_
Patches currently in -mm which might be from song.bao.hua@xxxxxxxxxxxxx are
mm-gup_benchmark-update-the-documentation-in-kconfig.patch
mm-gup_benchmark-use-pin_user_pages-for-foll_longterm-flag.patch
mm-gup-dont-permit-users-to-call-get_user_pages-with-foll_longterm.patch
