From: Greg Edwards <gedwards@ddn.com>
To: Christoph Hellwig <hch@lst.de>
Cc: Al Viro <viro@ZenIV.linux.org.uk>,
<linux-fsdevel@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] fs: guard_bio_eod() needs to consider partitions
Date: Tue, 24 Oct 2017 09:26:59 -0600 [thread overview]
Message-ID: <20171024152658.GA1477@psuche> (raw)
In-Reply-To: <20171024074615.GA14396@lst.de>
On Tue, Oct 24, 2017 at 09:46:15AM +0200, Christoph Hellwig wrote:
> On Tue, Oct 24, 2017 at 03:16:36AM +0100, Al Viro wrote:
>>> Fixes: 74d46992e0d9 ("block: replace bi_bdev with a gendisk pointer and partitions index")
>>> Signed-off-by: Greg Edwards <gedwards@ddn.com>
>>
>> That smells like a nasty source of overhead, especially on SMP boxen...
>
> We could just use __disk_get_part similar to the partition remapping,
> or just pass the block_device to guard_bio_eod.
Do you have a preference? __disk_get_part would be isolated to
guard_bio_eod. If we pass in the block_device, it would also touch all
the mpage_bio_submit callers.
next prev parent reply other threads:[~2017-10-24 15:27 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-24 1:10 [PATCH] fs: guard_bio_eod() needs to consider partitions Greg Edwards
2017-10-24 2:16 ` Al Viro
2017-10-24 7:46 ` Christoph Hellwig
2017-10-24 15:26 ` Greg Edwards [this message]
2017-10-24 17:21 ` [PATCH v2] " Greg Edwards
2017-11-01 17:49 ` Greg Edwards
2017-11-10 8:46 ` Christoph Hellwig
2017-11-10 15:25 ` Jens Axboe
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