diff options
Diffstat (limited to 'mm/slab.c')
-rw-r--r-- | mm/slab.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/mm/slab.c b/mm/slab.c index 93cbbbb39f4..122d031baab 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -92,6 +92,7 @@ #include <linux/sysctl.h> #include <linux/module.h> #include <linux/rcupdate.h> +#include <linux/string.h> #include <asm/uaccess.h> #include <asm/cacheflush.h> @@ -3082,3 +3083,26 @@ unsigned int ksize(const void *objp) return size; } + + +/* + * 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, int 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); |