These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / tools / perf / util / xyarray.c

diff --git a/kernel/tools/perf/util/xyarray.c b/kernel/tools/perf/util/xyarray.c
index 22afbf6..c10ba41 100644 (file)
--- a/kernel/tools/perf/util/xyarray.c
+++ b/kernel/tools/perf/util/xyarray.c
@@ -9,11 +9,19 @@ struct xyarray *xyarray__new(int xlen, int ylen, size_t entry_size)
        if (xy != NULL) {
                xy->entry_size = entry_size;
                xy->row_size   = row_size;
+               xy->entries    = xlen * ylen;
        }
 
        return xy;
 }
 
+void xyarray__reset(struct xyarray *xy)
+{
+       size_t n = xy->entries * xy->entry_size;
+
+       memset(xy->contents, 0, n);
+}
+
 void xyarray__delete(struct xyarray *xy)
 {
        free(xy);