Re: [dpdk-dev] [PATCH v2 2/4] mempool: use generic memory management

[Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>]

On Mon,  1 Jun 2020 13:31:37 +0300
Fady Bader <fady@mellanox.com> wrote:

[snip]
>  /* populate the mempool with an anonymous mapping */
> @@ -740,20 +739,20 @@ rte_mempool_populate_anon(struct rte_mempool *mp)
>  	}
>  
>  	/* get chunk of virtually continuous memory */
> -	addr = mmap(NULL, size, PROT_READ | PROT_WRITE,
> -		MAP_SHARED | MAP_ANONYMOUS, -1, 0);
> -	if (addr == MAP_FAILED) {
> +	addr = rte_mem_map(NULL, size, RTE_PROT_READ | RTE_PROT_WRITE,
> +		RTE_MAP_SHARED | RTE_MAP_ANONYMOUS, -1, 0);
> +	if (addr == NULL) {
>  		rte_errno = errno;

rte_mem_map() sets rte_errno, on Windows using errno here is invalid.

>  		return 0;
>  	}
>  	/* can't use MMAP_LOCKED, it does not exist on BSD */
> -	if (mlock(addr, size) < 0) {
> +	if (rte_mem_lock(addr, size) < 0) {
>  		rte_errno = errno;

Same as above.

[snip]

Two more things:

1. What do you think about changing rte_ to rte_eal_ prefix for memory
management wrappers in MM series as Andrew Rybchenko suggested for v1? Since
the functions are DPDK-internal, this sounds reasonable to me.

2. Please use --in-reply-to for v2 and on.

-- 
Dmitry Kozlyuk