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| author | Barry Song <song.bao.hua@hisilicon.com> | 2020-12-15 04:05:38 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-15 21:13:38 +0100 |
| commit | d0de82411864c4e1f24aaa3a653c7c08dd55c8d0 (patch) | |
| tree | 8ab00a9462556b4de8902ce9f176d553f5b7cb28 /mm/Kconfig | |
| parent | mm/gup_test.c: mark gup_test_init as __init function (diff) | |
| download | linux-d0de82411864c4e1f24aaa3a653c7c08dd55c8d0.tar.xz linux-d0de82411864c4e1f24aaa3a653c7c08dd55c8d0.zip | |
mm/gup_test: GUP_TEST depends on DEBUG_FS
Without DEBUG_FS, all the code in gup_benchmark becomes meaningless.
For sure kernel provides debugfs stub while DEBUG_FS is disabled, but
the point here is that GUP_TEST can do nothing without DEBUG_FS.
[song.bao.hua@hisilicon.com: add comment as a prompt to users as commented by John and Randy]
Link: https://lkml.kernel.org/r/20201108083732.15336-1-song.bao.hua@hisilicon.com
Link: https://lkml.kernel.org/r/20201104100552.20156-1-song.bao.hua@hisilicon.com
Signed-off-by: Barry Song <song.bao.hua@hisilicon.com>
Suggested-by: John Garry <john.garry@huawei.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/Kconfig')
| -rw-r--r-- | mm/Kconfig | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/mm/Kconfig b/mm/Kconfig index 350f2e23a94a..5829d31649b9 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -823,6 +823,7 @@ config PERCPU_STATS config GUP_TEST bool "Enable infrastructure for get_user_pages()-related unit tests" + depends on DEBUG_FS help Provides /sys/kernel/debug/gup_test, which in turn provides a way to make ioctl calls that can launch kernel-based unit tests for @@ -840,6 +841,9 @@ config GUP_TEST See tools/testing/selftests/vm/gup_test.c +comment "GUP_TEST needs to have DEBUG_FS enabled" + depends on !GUP_TEST && !DEBUG_FS + config GUP_GET_PTE_LOW_HIGH bool |