mirror of https://gitee.com/openkylin/linux.git
40 lines
771 B
C
40 lines
771 B
C
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#include <linux/slab.h>
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#include <linux/string.h>
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#include <linux/module.h>
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/**
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* kzalloc - allocate memory. The memory is set to zero.
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* @size: how many bytes of memory are required.
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* @flags: the type of memory to allocate.
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*/
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void *kzalloc(size_t size, gfp_t flags)
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{
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void *ret = kmalloc(size, flags);
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if (ret)
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memset(ret, 0, size);
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return ret;
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}
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EXPORT_SYMBOL(kzalloc);
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/*
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* kstrdup - allocate space for and copy an existing string
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*
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* @s: the string to duplicate
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* @gfp: the GFP mask used in the kmalloc() call when allocating memory
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*/
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char *kstrdup(const char *s, gfp_t gfp)
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{
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size_t len;
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char *buf;
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if (!s)
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return NULL;
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len = strlen(s) + 1;
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buf = kmalloc(len, gfp);
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if (buf)
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memcpy(buf, s, len);
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return buf;
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}
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EXPORT_SYMBOL(kstrdup);
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