From 30992c97ae9d01b17374fbfab76a869fb4bba500 Mon Sep 17 00:00:00 2001 From: Matt Mackall Date: Sun, 8 Jan 2006 01:01:43 -0800 Subject: [PATCH] slob: introduce mm/util.c for shared functions Add mm/util.c for functions common between SLAB and SLOB. Signed-off-by: Matt Mackall Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/util.c | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 mm/util.c (limited to 'mm/util.c') diff --git a/mm/util.c b/mm/util.c new file mode 100644 index 000000000000..5f4bb59da63c --- /dev/null +++ b/mm/util.c @@ -0,0 +1,39 @@ +#include +#include +#include + +/** + * kzalloc - allocate memory. The memory is set to zero. + * @size: how many bytes of memory are required. + * @flags: the type of memory to allocate. + */ +void *kzalloc(size_t size, gfp_t flags) +{ + void *ret = kmalloc(size, flags); + if (ret) + memset(ret, 0, size); + return ret; +} +EXPORT_SYMBOL(kzalloc); + +/* + * kstrdup - allocate space for and copy an existing string + * + * @s: the string to duplicate + * @gfp: the GFP mask used in the kmalloc() call when allocating memory + */ +char *kstrdup(const char *s, gfp_t gfp) +{ + size_t len; + char *buf; + + if (!s) + return NULL; + + len = strlen(s) + 1; + buf = kmalloc(len, gfp); + if (buf) + memcpy(buf, s, len); + return buf; +} +EXPORT_SYMBOL(kstrdup); -- cgit v1.2.3