linux-kernel - Re: [PATCH v2 05/14] RDS: defer the over

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 05 Oct 2015 03:30:24 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	santosh.shilimkar@...cle.com
Cc:	netdev@...r.kernel.org, linux-rdma@...r.kernel.org,
	linux-kernel@...r.kernel.org, ssantosh@...nel.org
Subject: Re: [PATCH v2 05/14] RDS: defer the over_batch work to send worker

From: Santosh Shilimkar <santosh.shilimkar@...cle.com>
Date: Wed, 30 Sep 2015 13:24:24 -0400

> @@ -423,7 +423,9 @@ over_batch:
>  		     !list_empty(&conn->c_send_queue)) &&
>  		    send_gen == conn->c_send_gen) {
>  			rds_stats_inc(s_send_lock_queue_raced);
> -			goto restart;
> +			if (batch_count < 1024)
> +				goto restart;
> +			queue_delayed_work(rds_wq, &conn->c_send_w, 1);

Sorry, you can't just use a magic number like this.

You have to describe, in detail, exactly how this value was
choosen, derived, and tested to be effeective and in exactly
what environment those tests were done.

You must also use a mnenomic for this value rather than a
raw magic constant.

Thanks.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/