linux-kernel - Re: [PATCH] block: tolerate 0 byte discard_granularity in __blkdev_issue

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Message-ID: <yq18seu0wdd.fsf@ca-mkp.ca.oracle.com>
Date:   Tue, 04 Aug 2020 20:28:28 -0400
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Ming Lei <ming.lei@...hat.com>
Cc:     Coly Li <colyli@...e.de>, linux-block@...r.kernel.org,
        linux-bcache@...r.kernel.org, linux-kernel@...r.kernel.org,
        Hannes Reinecke <hare@...e.com>, Xiao Ni <xni@...hat.com>,
        Bart Van Assche <bvanassche@....org>,
        Christoph Hellwig <hch@....de>,
        Enzo Matsumiya <ematsumiya@...e.com>,
        Jens Axboe <axboe@...nel.dk>, Evan Green <evgreen@...omium.org>
Subject: Re: [PATCH] block: tolerate 0 byte discard_granularity in
 __blkdev_issue_discard()


Ming,

> What we need to fix is loop driver, if it claims to support discard,
> q->limits.discard_granularity has to be one valid value.

Yep!

-- 
Martin K. Petersen	Oracle Linux Engineering