Re: [PATCH] /proc/cpumem

[YAMAMOTO Takashi <yamamoto@valinux.co.jp>]

hi,

> +	while (addr < end) {
> +		if (valid_phys_addr_range(addr, &size)) {
> +			if (!found) {
> +				found = 1;
> +				p->addr = addr;
> +				p->size = size;
> +			} else {
> +				p->size += size;
> +			}
> +			addr += size;
> +			size = 0xf0000000;
> +		} else {
> +			if (found) {
> +				return p;
> +			}
> +			addr += PAGE_SIZE;
> +		}
> +	}

doesn't this loop take very long time if you have a large hole?

i'd suggest to change valid_phys_addr_range to fill &size even when
it returns false, so that caller can skip the hole efficiently.

YAMAMOTO Takashi