linux-kernel - Re: [PATCH] block: bios with an offset are always gappy

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Message-ID: <20170414011517.GB29916@ming.t460p>
Date:   Fri, 14 Apr 2017 09:15:18 +0800
From:   Ming Lei <ming.lei@...hat.com>
To:     Andreas Mohr <andi@...as.de>
Cc:     Johannes Thumshirn <jthumshirn@...e.de>, Jens Axboe <axboe@...com>,
        Omar Sandoval <osandov@...ndov.com>,
        Bart Van Assche <Bart.VanAssche@...disk.com>,
        Hannes Reinecke <hare@...e.de>, Christoph Hellwig <hch@....de>,
        Linux Block Layer Mailinglist <linux-block@...r.kernel.org>,
        Linux Kernel Mailinglist <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] block: bios with an offset are always gappy

On Thu, Apr 13, 2017 at 10:35:17PM +0200, Andreas Mohr wrote:
> On Thu, Apr 13, 2017 at 10:45:10PM +0800, Ming Lei wrote:
> > +		/*
> > +		 * don't merge if the 1st bio starts with non-zero
> > +		 * offset, otherwise it is quite difficult to respect
> > +		 * sg gap limit. We work hard to merge huge of small
> > +		 * bios in case of mkfs.
> 
> "huge of small bios in case" - -ENOPARSE.
> 
> "huge numbers of"?
> "huge or small"?

OK, it should be tons of or sort of description. As you can see
in the trace, there are 2560 bios merged in one request.

Thanks,
Ming