linux-kernel - Re: [PATCH v3 5/6] md/raid1: Handle bio

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Message-ID: <bff0e388-6190-4465-9ab1-8a2b65ff4f71@suse.de>
Date: Tue, 5 Nov 2024 08:26:29 +0100
From: Hannes Reinecke <hare@...e.de>
To: John Garry <john.g.garry@...cle.com>, axboe@...nel.dk, song@...nel.org,
 yukuai3@...wei.com, hch@....de
Cc: martin.petersen@...cle.com, linux-block@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-raid@...r.kernel.org,
 Johannes.Thumshirn@....com
Subject: Re: [PATCH v3 5/6] md/raid1: Handle bio_split() errors

On 10/31/24 10:59, John Garry wrote:
> Add proper bio_split() error handling. For any error, call
> raid_end_bio_io() and return.
> 
> For the case of an in the write path, we need to undo the increment in
> the rdev pending count and NULLify the r1_bio->bios[] pointers.
> 
> For read path failure, we need to undo rdev pending count increment from
> the earlier read_balance() call.
> 
> Signed-off-by: John Garry <john.g.garry@...cle.com>
> ---
>   drivers/md/raid1.c | 33 +++++++++++++++++++++++++++++++--
>   1 file changed, 31 insertions(+), 2 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare@...e.de>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                  Kernel Storage Architect
hare@...e.de                                +49 911 74053 688
SUSE Software Solutions GmbH, Frankenstr. 146, 90461 Nürnberg
HRB 36809 (AG Nürnberg), GF: I. Totev, A. McDonald, W. Knoblich