linux-kernel - [PATCH v4 1/2] staging: lustre: Use mult if units not specified

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Message-Id: <1421019749-25110-2-git-send-email-chris@rorvick.com>
Date:	Sun, 11 Jan 2015 17:42:28 -0600
From:	Chris Rorvick <chris@...vick.com>
To:	Oleg Drokin <oleg.drokin@...el.com>,
	Andreas Dilger <andreas.dilger@...el.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Chris Rorvick <chris@...vick.com>,
	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>,
	Julia Lawall <Julia.Lawall@...6.fr>,
	Greg Donald <gdonald@...il.com>,
	"John L. Hammond" <john.hammond@...el.com>,
	Andriy Skulysh <Andriy_Skulysh@...atex.com>,
	Fabian Frederick <fabf@...net.be>,
	James Simmons <uja.ornl@...il.com>, HPDD-discuss@...ts.01.org,
	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH v4 1/2] staging: lustre: Use mult if units not specified

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.

Signed-off-by: Chris Rorvick <chris@...vick.com>
Reviewed-by: Andreas Dilger <andreas.dilger@...el.com>
---
 drivers/staging/lustre/lustre/obdclass/lprocfs_status.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
index 3b7dfc3..a7b270e 100644
--- a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
+++ b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
@@ -1908,7 +1908,7 @@ int lprocfs_write_frac_u64_helper(const char *buffer, unsigned long count,
 		units <<= 10;
 	}
 	/* Specified units override the multiplier */
-	if (units)
+	if (units > 1)
 		mult = mult < 0 ? -units : units;
 
 	frac *= mult;
-- 
2.1.0

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