From 1386442ebc5b681b0ded431880198e3beb6da483 Mon Sep 17 00:00:00 2001
From: Pavel Charvat <pavel.charvat@netcentrum.cz>
Date: Fri, 1 Jun 2007 14:40:02 +0200
Subject: [PATCH] lib: added {big,page}_alloc_zero routines

---
 lib/bigalloc.c | 16 ++++++++++++++++
 lib/lib.h      |  2 ++
 2 files changed, 18 insertions(+)

diff --git a/lib/bigalloc.c b/lib/bigalloc.c
index a1060e60..ee84b7b5 100644
--- a/lib/bigalloc.c
+++ b/lib/bigalloc.c
@@ -26,6 +26,14 @@ page_alloc(u64 len)
   return p;
 }
 
+void *
+page_alloc_zero(u64 len)
+{
+  void *p = page_alloc(len);
+  bzero(p, len);
+  return p;
+}
+
 void
 page_free(void *start, u64 len)
 {
@@ -67,6 +75,14 @@ big_alloc(u64 len)
   return p;
 }
 
+void *
+big_alloc_zero(u64 len)
+{
+  void *p = big_alloc(len);
+  bzero(p, big_round(len));
+  return p;
+}
+
 void
 big_free(void *start, u64 len)
 {
diff --git a/lib/lib.h b/lib/lib.h
index 7e0e7f09..92c89152 100644
--- a/lib/lib.h
+++ b/lib/lib.h
@@ -269,10 +269,12 @@ byte *str_format_flags(byte *dest, const byte *fmt, uns flags);
 /* bigalloc.c */
 
 void *page_alloc(u64 len) LIKE_MALLOC; // allocates a multiple of CPU_PAGE_SIZE bytes with mmap
+void *page_alloc_zero(u64 len) LIKE_MALLOC;
 void page_free(void *start, u64 len);
 void *page_realloc(void *start, u64 old_len, u64 new_len);
 
 void *big_alloc(u64 len) LIKE_MALLOC; // allocate a large memory block in the most efficient way available
+void *big_alloc_zero(u64 len) LIKE_MALLOC;
 void big_free(void *start, u64 len);
 
 #endif
-- 
2.39.2