---

yaml --- r: 37615 b: refs/heads/master c: 1a2f67b h: refs/heads/master i: 37613: 7814dee 37611: d09fa25 37607: fa78717 37599: 1114d4a v: v3
git-mirror · Oct 1, 2006 · 3c7fbdc · 3c7fbdc
1 parent 4b13d3f
commit 3c7fbdc
Show file tree

Hide file tree

Showing 3 changed files with 20 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9442e691e4aec85eba43ac60a3e77c77fd2e73a4
+refs/heads/master: 1a2f67b459bb7846d4a15924face63eb2683acc2
diff --git a/trunk/include/linux/string.h b/trunk/include/linux/string.h
@@ -99,6 +99,7 @@ extern void * memchr(const void *,int,__kernel_size_t);
 #endif
 
 extern char *kstrdup(const char *s, gfp_t gfp);
+extern void *kmemdup(const void *src, size_t len, gfp_t gfp);
 
 #ifdef __cplusplus
 }

diff --git a/trunk/mm/util.c b/trunk/mm/util.c
@@ -40,6 +40,24 @@ char *kstrdup(const char *s, gfp_t gfp)
 }
 EXPORT_SYMBOL(kstrdup);
 
+/**
+ * kmemdup - duplicate region of memory
+ *
+ * @src: memory region to duplicate
+ * @len: memory region length
+ * @gfp: GFP mask to use
+ */
+void *kmemdup(const void *src, size_t len, gfp_t gfp)
+{
+	void *p;
+
+	p = ____kmalloc(len, gfp);
+	if (p)
+		memcpy(p, src, len);
+	return p;
+}
+EXPORT_SYMBOL(kmemdup);
+
 /*
  * strndup_user - duplicate an existing string from user space
  *
-Original file line number
+Diff line change
@@ Expand Up / @@ -99,6 +99,7 @@ extern void * memchr(const void *,int,__kernel_size_t); @@
     #endif
     extern char *kstrdup(const char *s, gfp_t gfp);
+    extern void *kmemdup(const void *src, size_t len, gfp_t gfp);
     #ifdef __cplusplus
     }
@@ Expand Down @@