linux-kernel - Re: [PATCH 5/5] writeback: IO-less balance_dirty

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:	Sun, 7 Aug 2011 14:44:59 +0800
From:	Wu Fengguang <fengguang.wu@...el.com>
To:	Andrea Righi <arighi@...eler.com>
Cc:	"linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jan Kara <jack@...e.cz>, Christoph Hellwig <hch@....de>,
	Dave Chinner <david@...morbit.com>,
	Greg Thelen <gthelen@...gle.com>,
	Minchan Kim <minchan.kim@...il.com>,
	Vivek Goyal <vgoyal@...hat.com>, linux-mm <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 5/5] writeback: IO-less balance_dirty_pages()

> > +             bw = (u64)base_bw * bw >> BANDWIDTH_CALC_SHIFT;
> > +             pause = (HZ * pages_dirtied + bw / 2) / (bw | 1);
> > +             pause = min(pause, MAX_PAUSE);
> 
> Fix this build warning:
> 
>  mm/page-writeback.c: In function ‘balance_dirty_pages’:
>  mm/page-writeback.c:889:11: warning: comparison of distinct pointer types lacks a cast

Thanks! I'll fix it by changing `pause' to "long", since we'll have
negative pause time anyway when considering think time compensation.

Thanks,
Fengguang
--
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/