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From: "John Stoffel" <john@stoffel.org>
To: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
Cc: Song Liu <song@kernel.org>, linux-raid <linux-raid@vger.kernel.org>
Subject: Re: [PATCH] md: improve io stats accounting
Date: Tue, 2 Jun 2020 13:32:54 -0400	[thread overview]
Message-ID: <24278.36166.418871.60864@quad.stoffel.home> (raw)
In-Reply-To: <26d5f5c7-9a20-e7f9-617f-0353c5d9bb2e@intel.com>

>>>>> "Artur" == Artur Paszkiewicz <artur.paszkiewicz@intel.com> writes:

Artur> On 6/2/20 8:48 AM, Song Liu wrote:
>>> +               clone = bio_clone_fast(bio, GFP_NOIO, &mddev->md_io_bs);
>> 
>> Handle clone == NULL?

Artur> I think this should never fail - bio_alloc_bioset() guarantees that. It
Artur> is used in a similar manner in raid1 and raid10. How about
Artur> BUG_ON(clone == NULL)?

No, use WARN_ON() instead, why would you bug the entire system for
just one logical device throwing an error?  

  parent reply	other threads:[~2020-06-02 17:32 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-01 16:12 [PATCH] md: improve io stats accounting Artur Paszkiewicz
2020-06-01 22:03 ` kbuild test robot
2020-06-01 22:03   ` kbuild test robot
2020-06-02  6:22   ` Song Liu
2020-06-02  6:22     ` Song Liu
2020-06-02  6:31     ` [kbuild-all] " Rong Chen
2020-06-02  6:31       ` Rong Chen
2020-06-02  6:48 ` Song Liu
2020-06-02 11:47   ` Artur Paszkiewicz
2020-06-02 17:16     ` Song Liu
2020-06-02 17:32     ` John Stoffel [this message]
2020-06-02  7:01 ` kbuild test robot
2020-06-02  7:01   ` kbuild test robot
2020-06-08 14:37 ` Guoqing Jiang
2020-07-02  6:30   ` Song Liu

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