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From: hmsjwzb <hmsjwzb@zoho.com>
To: wqu@suse.com
Cc: Chris Mason <clm@fb.com>, Josef Bacik <josef@toxicpanda.com>,
	David Sterba <dsterba@suse.com>,
	linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] btrfs:remove redundant index_rbio_pages in raid56_rmw_stripe
Date: Wed, 28 Sep 2022 21:49:00 -0400	[thread overview]
Message-ID: <6104df01-4190-5c18-ddbf-6694e1e14900@zoho.com> (raw)
In-Reply-To: <20220929014402.2450-1-hmsjwzb@zoho.com>



On 9/28/22 21:44, Flint.Wang wrote:
>   The index_rbio_pages in raid56_rmw_stripe is redundant.
>   It is invoked in finish_rmw anyway.
> 
> Signed-off-by: Flint.Wang <hmsjwzb@zoho.com>
> ---
>  fs/btrfs/raid56.c | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c
> index f6395e8288d69..44266b2c5b86e 100644
> --- a/fs/btrfs/raid56.c
> +++ b/fs/btrfs/raid56.c
> @@ -1546,8 +1546,6 @@ static int raid56_rmw_stripe(struct btrfs_raid_bio *rbio)
>  	if (ret)
>  		goto cleanup;
>  
> -	index_rbio_pages(rbio);
> -
>  	atomic_set(&rbio->error, 0);
>  	/* Build a list of bios to read all the missing data sectors. */
>  	for (total_sector_nr = 0; total_sector_nr < nr_data_sectors;
Hi Qu,

	I am doing some experiment on the destroy RMW. It seems the index_rbio_pages in raid56_rmw_stripe is redundant. We will do it in finish_rmw anyway.

Thanks,
Flint

  reply	other threads:[~2022-09-29  1:49 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-29  1:44 [PATCH] btrfs:remove redundant index_rbio_pages in raid56_rmw_stripe Flint.Wang
2022-09-29  1:49 ` hmsjwzb [this message]
2022-09-29  3:08 ` Qu Wenruo
2022-09-29  3:13   ` Qu Wenruo
2022-09-29  6:41     ` hmsjwzb
2022-09-29  7:00       ` Qu Wenruo
2022-09-29  5:14   ` hmsjwzb

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