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- // SPDX-License-Identifier: GPL-2.0-only
- /*
- * Copyright (C) 2013 Richard Weinberger <[email protected]>
- */
- #include <linux/uaccess.h>
- #include <linux/kernel.h>
- #include <os.h>
- bool copy_from_kernel_nofault_allowed(const void *src, size_t size)
- {
- void *psrc = (void *)rounddown((unsigned long)src, PAGE_SIZE);
- if ((unsigned long)src < PAGE_SIZE || size <= 0)
- return false;
- if (os_mincore(psrc, size + src - psrc) <= 0)
- return false;
- return true;
- }
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