From: "Martin K. Petersen" <martin.petersen@oracle.com>
To: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: <mchristi@redhat.com>, <linux-scsi@vger.kernel.org>,
<target-devel@vger.kernel.org>, <socketpair@gmail.com>,
<stable@vger.kernel.org>
Subject: Re: [PATCH 2/2] target: fix max discard sectors calculation
Date: Mon, 16 May 2016 15:02:22 -0400 [thread overview]
Message-ID: <yq1y479hlmp.fsf@sermon.lab.mkp.net> (raw)
In-Reply-To: <573A1826.3050007@sandisk.com> (Bart Van Assche's message of "Mon, 16 May 2016 11:57:42 -0700")
>>>>> "Bart" == Bart Van Assche <bart.vanassche@sandisk.com> writes:
Bart> That's a good catch. But seeing this patch makes me wonder whether
Bart> this patch introduces a 64-bit division? If so, I'm afraid this
Bart> patch will make 32-bit users unhappy. Have you considered to use
Bart> do_div() or >> (ilog2(block_size) - 9) instead? For the latter
Bart> alternative no 64-bit cast is needed.
Please use logical_to_sectors().
--
Martin K. Petersen Oracle Linux Engineering
next prev parent reply other threads:[~2016-05-16 19:02 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1463424410-17196-1-git-send-email-mchristi@redhat.com>
2016-05-16 18:46 ` [PATCH 1/2] scsi: fix max discard sectors calculation mchristi
2016-05-16 22:44 ` Bart Van Assche
2016-05-17 3:46 ` Mike Christie
2016-05-16 18:46 ` [PATCH 2/2] target: " mchristi
2016-05-16 18:57 ` Bart Van Assche
2016-05-16 19:00 ` Mike Christie
2016-05-16 19:02 ` Martin K. Petersen [this message]
2016-05-17 18:16 ` Bart Van Assche
2016-05-17 21:49 ` Mike Christie
2016-05-18 16:56 ` Bart Van Assche
2016-05-18 17:17 ` Mike Christie
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