Re: [PATCH 1/5] zram: remove the call to page_endio in the bio end_io handler

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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.




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