use calloc instead of malloc;memset in zmalloc()

This is more efficient for larger allocations, where the allocator can just
provide a zeroed page from the operating system.

diff --git a/lib/common/memory.c b/lib/common/memory.c
index 5610a450e441f929cbceb8609fab19c8f678b094..53bb083af429b35c2d1e2c02ff64688fd2af0798 100644 (file)
--- a/lib/common/memory.c
+++ b/lib/common/memory.c
@@ -20,12 +20,9 @@
 
 void *zmalloc(size_t nbytes)
 {
-    char *rv;
     if (nbytes == 0)
        return 0;
-    rv = gmalloc(nbytes);
-    memset(rv, 0, nbytes);
-    return rv;
+    return gcalloc(1, nbytes);
 }
 
 void *zrealloc(void *ptr, size_t size, size_t elt, size_t osize)