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author | Simon Guo <wei.guo.simon@gmail.com> | 2016-10-07 16:59:43 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-07 18:46:28 -0700 |
commit | c7f032bbe4cacb57e49d5c48bf06de8dc28a449f (patch) | |
tree | 17ef7645fa23703a9de33b3b413d755eb6c17f27 /tools/testing/selftests/vm/mlock2.h | |
parent | b155b4fde5bdde9fed439cd1f5ea07173df2ed31 (diff) | |
download | linux-stable-c7f032bbe4cacb57e49d5c48bf06de8dc28a449f.tar.gz linux-stable-c7f032bbe4cacb57e49d5c48bf06de8dc28a449f.tar.bz2 linux-stable-c7f032bbe4cacb57e49d5c48bf06de8dc28a449f.zip |
selftest: split mlock2_ funcs into separate mlock2.h
To prepare mlock2.h whose functionality will be reused.
Link: http://lkml.kernel.org/r/1472554781-9835-4-git-send-email-wei.guo.simon@gmail.com
Signed-off-by: Simon Guo <wei.guo.simon@gmail.com>
Cc: Alexey Klimov <klimov.linux@gmail.com>
Cc: Eric B Munson <emunson@akamai.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Simon Guo <wei.guo.simon@gmail.com>
Cc: Thierry Reding <treding@nvidia.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/testing/selftests/vm/mlock2.h')
-rw-r--r-- | tools/testing/selftests/vm/mlock2.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/tools/testing/selftests/vm/mlock2.h b/tools/testing/selftests/vm/mlock2.h new file mode 100644 index 000000000000..b9c6d9fe372f --- /dev/null +++ b/tools/testing/selftests/vm/mlock2.h @@ -0,0 +1,20 @@ +#include <syscall.h> +#include <errno.h> + +#ifndef MLOCK_ONFAULT +#define MLOCK_ONFAULT 1 +#endif + +#ifndef MCL_ONFAULT +#define MCL_ONFAULT (MCL_FUTURE << 1) +#endif + +static int mlock2_(void *start, size_t len, int flags) +{ +#ifdef __NR_mlock2 + return syscall(__NR_mlock2, start, len, flags); +#else + errno = ENOSYS; + return -1; +#endif +} |