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From: Pankaj Raghav <p.raghav@samsung.com>
To: Matthew Wilcox <willy@infradead.org>, Christoph Hellwig <hch@lst.de>
Cc: <martin@omnibond.com>, <axboe@kernel.dk>, <minchan@kernel.org>,
	<akpm@linux-foundation.org>, <hubcap@omnibond.com>,
	<viro@zeniv.linux.org.uk>, <senozhatsky@chromium.org>,
	<brauner@kernel.org>, <linux-kernel@vger.kernel.org>,
	<linux-fsdevel@vger.kernel.org>, <mcgrof@kernel.org>,
	<linux-block@vger.kernel.org>, <gost.dev@samsung.com>,
	<linux-mm@kvack.org>, <devel@lists.orangefs.org>
Subject: Re: [PATCH 1/5] zram: remove the call to page_endio in the bio end_io handler
Date: Tue, 28 Mar 2023 18:17:11 +0200	[thread overview]
Message-ID: <5865a840-cb5e-ead1-f168-100869081f84@samsung.com> (raw)
In-Reply-To: <ZCMFcTHkTe/1WapL@casper.infradead.org>

On 2023-03-28 17:19, Matthew Wilcox wrote:
> On Tue, Mar 28, 2023 at 01:27:12PM +0200, Pankaj Raghav wrote:
>> -static void zram_page_end_io(struct bio *bio)
>> +static void zram_read_end_io(struct bio *bio)
>>  {
>> -	struct page *page = bio_first_page_all(bio);
>> -
>> -	page_endio(page, op_is_write(bio_op(bio)),
>> -			blk_status_to_errno(bio->bi_status));
>>  	bio_put(bio);
>>  }
>>  
>> @@ -635,7 +631,7 @@ static int read_from_bdev_async(struct zram *zram, struct bio_vec *bvec,
>>  	}
>>  
>>  	if (!parent)
>> -		bio->bi_end_io = zram_page_end_io;
>> +		bio->bi_end_io = zram_read_end_io;
> 
> Can we just do:
> 
> 	if (!parent)
> 		bio->bi_end_io = bio_put;
> 

Looks neat. I will wait for Christoph to comment whether just a bio_put() call
is enough in this case for non-chained bios before making this change for the
next version.

Thanks.

  reply	other threads:[~2023-03-28 16:17 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20230328112717eucas1p2eb9395b7e3334c08aa28740b0af46fe9@eucas1p2.samsung.com>
2023-03-28 11:27 ` [PATCH 0/5] remove page_endio() Pankaj Raghav
     [not found]   ` <CGME20230328112718eucas1p214a859cfb3d7b45523356bcc16c373b1@eucas1p2.samsung.com>
2023-03-28 11:27     ` [PATCH 1/5] zram: remove the call to page_endio in the bio end_io handler Pankaj Raghav
2023-03-28 15:19       ` Matthew Wilcox
2023-03-28 16:17         ` Pankaj Raghav [this message]
2023-03-29 23:53           ` Christoph Hellwig
2023-03-30 22:51       ` Minchan Kim
2023-03-30 23:16         ` Christoph Hellwig
2023-03-31  1:42           ` Minchan Kim
2023-03-31 11:19         ` Pankaj Raghav
     [not found]   ` <CGME20230328112718eucas1p263dacecb2a59f5fce510f81685f9d497@eucas1p2.samsung.com>
2023-03-28 11:27     ` [PATCH 2/5] orangefs: use folios in orangefs_readahead Pankaj Raghav
2023-03-28 15:21       ` Matthew Wilcox
2023-03-28 16:02         ` Pankaj Raghav
2023-03-29 19:10           ` Mike Marshall
     [not found]   ` <CGME20230328112719eucas1p2b0f94ad7b06990203081d2b125dfc6ac@eucas1p2.samsung.com>
2023-03-28 11:27     ` [PATCH 3/5] mpage: split bi_end_io callback for reads and writes Pankaj Raghav
     [not found]   ` <CGME20230328112720eucas1p1148c03b8664f6c212c7189454a36b796@eucas1p1.samsung.com>
2023-03-28 11:27     ` [PATCH 4/5] mpage: use folios in bio end_io handler Pankaj Raghav
     [not found]   ` <CGME20230328112720eucas1p2bbb42b49da00b4f2299049bf6bafce48@eucas1p2.samsung.com>
2023-03-28 11:27     ` [PATCH 5/5] filemap: remove page_endio() Pankaj Raghav

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