// SPDX-License-Identifier: GPL-2.0 #include <linux/log2.h>#include <linux/slab.h>#include <linux/vmalloc.h>#include "darray.h" int __bch2_darray_resize_noprof(darray_char *d, size_t element_size, size_t new_size, gfp_t gfp){	if (new_size > d->size) {		new_size = roundup_pow_of_two(new_size); 		/*		 * This is a workaround: kvmalloc() doesn't support > INT_MAX		 * allocations, but vmalloc() does.		 * The limit needs to be lifted from kvmalloc, and when it does		 * we'll go back to just using that.		 */		size_t bytes;		if (unlikely(check_mul_overflow(new_size, element_size, &bytes)))			return -ENOMEM; 		void *data = likely(bytes < INT_MAX)			? kvmalloc_noprof(bytes, gfp)			: vmalloc_noprof(bytes);		if (!data)			return -ENOMEM; 		if (d->size)			memcpy(data, d->data, d->size * element_size);		if (d->data != d->preallocated)			kvfree(d->data);		d->data	= data;		d->size = new_size;	} 	return 0;}