diff options
Diffstat (limited to 'tools/perf/bench/mem-memcpy.c')
| -rw-r--r-- | tools/perf/bench/mem-memcpy.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/tools/perf/bench/mem-memcpy.c b/tools/perf/bench/mem-memcpy.c index 93c83e3cb4a7..8cdca43016b2 100644 --- a/tools/perf/bench/mem-memcpy.c +++ b/tools/perf/bench/mem-memcpy.c @@ -111,12 +111,14 @@ static double timeval2double(struct timeval *ts) static void alloc_mem(void **dst, void **src, size_t length) { *dst = zalloc(length); - if (!dst) + if (!*dst) die("memory allocation failed - maybe length is too large?\n"); *src = zalloc(length); - if (!src) + if (!*src) die("memory allocation failed - maybe length is too large?\n"); + /* Make sure to always replace the zero pages even if MMAP_THRESH is crossed */ + memset(*src, 0, length); } static u64 do_memcpy_cycle(memcpy_t fn, size_t len, bool prefault) |