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From: Dan Carpenter <dan.carpenter@oracle.com>
To: Chris Rorvick <chris@rorvick.com>
Cc: Oleg Drokin <oleg.drokin@intel.com>,
	Andreas Dilger <andreas.dilger@intel.com>,
	devel@driverdev.osuosl.org, HPDD-discuss@ml01.01.org,
	Greg Donald <gdonald@gmail.com>,
	James Simmons <uja.ornl@gmail.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>,
	linux-kernel@vger.kernel.org, Fabian Frederick <fabf@skynet.be>,
	Julia Lawall <Julia.Lawall@lip6.fr>,
	Andriy Skulysh <Andriy_Skulysh@xyratex.com>,
	"John L. Hammond" <john.hammond@intel.com>
Subject: Re: [PATCH] drivers: staging: lustre: Use mult if units not specified
Date: Tue, 16 Dec 2014 12:41:09 +0300	[thread overview]
Message-ID: <20141216094109.GH4856@mwanda> (raw)
In-Reply-To: <1418708509-18196-1-git-send-email-chris@rorvick.com>

On Mon, Dec 15, 2014 at 11:41:49PM -0600, Chris Rorvick wrote:
> Units can be passed to lprocfs_write_frac_u64_helper() via a suffix
> (e.g., "...K", "...M", etc.) tacked onto the value.  A comment states
> that "specified units override the multiplier," though the multiplier is
> overridden regardless.  Update the conditional logic so that it only
> applies when units are specified.
> 

That introduces a bug.  We need to take the initial '-' into
consideration.  Just remove the condition.  Also remove the "mult"
parameter since that is always 1.

	bool negative = false;

	...

	if (*pbuf == '-') {
		negative = true;
		pbuf++;
	}

	...

	mult = negative ? -units : units;


regards,
dan carpenter


  reply	other threads:[~2014-12-16  9:41 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-16  5:41 [PATCH] drivers: staging: lustre: Use mult if units not specified Chris Rorvick
2014-12-16  9:41 ` Dan Carpenter [this message]
2014-12-16 11:14   ` Dilger, Andreas
2014-12-16 11:35     ` Dan Carpenter
2014-12-16 12:53       ` Chris Rorvick
2014-12-16 13:54         ` Dan Carpenter
2014-12-16 14:04           ` Dan Carpenter

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