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| author | John Hubbard <jhubbard@nvidia.com> | 2023-06-06 00:16:34 -0700 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-06-19 16:19:02 -0700 |
| commit | 3972ea2469385777d0ebc67794f30cdb0cdbffd9 (patch) | |
| tree | 5dda017145975f533a6829629719ded9cd2b7e3d | |
| parent | 97deb66ed4f9390fd585210fe6d72088000d9110 (diff) | |
| download | linux-3972ea2469385777d0ebc67794f30cdb0cdbffd9.tar.gz linux-3972ea2469385777d0ebc67794f30cdb0cdbffd9.tar.bz2 linux-3972ea2469385777d0ebc67794f30cdb0cdbffd9.zip | |
selftests/mm: fix build failures due to missing MADV_COLLAPSE
MADV_PAGEOUT, MADV_POPULATE_READ, MADV_COLLAPSE are conditionally
defined as necessary. However, that was being done in .c files, and a
new build failure came up that would have been automatically avoided had
these been in a common header file.
So consolidate and move them all to vm_util.h, which fixes the build
failure.
An alternative approach from Muhammad Usama Anjum was: rely on "make
headers" being required, and include asm-generic/mman-common.h. This
works in the sense that it builds, but it still generates warnings about
duplicate MADV_* symbols, and the goal here is to get a fully clean (no
warnings) build here.
Link: https://lkml.kernel.org/r/20230606071637.267103-9-jhubbard@nvidia.com
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Tested-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | tools/testing/selftests/mm/cow.c | 7 | ||||
| -rw-r--r-- | tools/testing/selftests/mm/khugepaged.c | 10 | ||||
| -rw-r--r-- | tools/testing/selftests/mm/vm_util.h | 10 |
3 files changed, 10 insertions, 17 deletions
diff --git a/tools/testing/selftests/mm/cow.c b/tools/testing/selftests/mm/cow.c index 7f3b620d9cb7..e4c5095e74fc 100644 --- a/tools/testing/selftests/mm/cow.c +++ b/tools/testing/selftests/mm/cow.c @@ -29,13 +29,6 @@ #include "../kselftest.h" #include "vm_util.h" -#ifndef MADV_PAGEOUT -#define MADV_PAGEOUT 21 -#endif -#ifndef MADV_COLLAPSE -#define MADV_COLLAPSE 25 -#endif - static size_t pagesize; static int pagemap_fd; static size_t thpsize; diff --git a/tools/testing/selftests/mm/khugepaged.c b/tools/testing/selftests/mm/khugepaged.c index 97adc0f34f9c..e88ee039d0eb 100644 --- a/tools/testing/selftests/mm/khugepaged.c +++ b/tools/testing/selftests/mm/khugepaged.c @@ -22,16 +22,6 @@ #include "vm_util.h" -#ifndef MADV_PAGEOUT -#define MADV_PAGEOUT 21 -#endif -#ifndef MADV_POPULATE_READ -#define MADV_POPULATE_READ 22 -#endif -#ifndef MADV_COLLAPSE -#define MADV_COLLAPSE 25 -#endif - #define BASE_ADDR ((void *)(1UL << 30)) static unsigned long hpage_pmd_size; static unsigned long page_size; diff --git a/tools/testing/selftests/mm/vm_util.h b/tools/testing/selftests/mm/vm_util.h index 99b795528716..0df1cf77048c 100644 --- a/tools/testing/selftests/mm/vm_util.h +++ b/tools/testing/selftests/mm/vm_util.h @@ -64,3 +64,13 @@ int uffd_register_with_ioctls(int uffd, void *addr, uint64_t len, #define PAGEMAP_PRESENT(ent) (((ent) & (1ull << 63)) != 0) #define PAGEMAP_PFN(ent) ((ent) & ((1ull << 55) - 1)) + +#ifndef MADV_PAGEOUT +#define MADV_PAGEOUT 21 +#endif +#ifndef MADV_POPULATE_READ +#define MADV_POPULATE_READ 22 +#endif +#ifndef MADV_COLLAPSE +#define MADV_COLLAPSE 25 +#endif |