netdev - Re: [dm-devel] [PATCH v5] fault-injection: introduce kvmalloc fallback options

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Message-ID: <20180426223925-mutt-send-email-mst@kernel.org>
Date:   Thu, 26 Apr 2018 22:45:57 +0300
From:   "Michael S. Tsirkin" <mst@...hat.com>
To:     Mikulas Patocka <mpatocka@...hat.com>
Cc:     James Bottomley <James.Bottomley@...senPartnership.com>,
        Michal Hocko <mhocko@...nel.org>,
        David Rientjes <rientjes@...gle.com>, dm-devel@...hat.com,
        eric.dumazet@...il.com, netdev@...r.kernel.org,
        jasowang@...hat.com, Randy Dunlap <rdunlap@...radead.org>,
        linux-kernel@...r.kernel.org, Matthew Wilcox <willy@...radead.org>,
        linux-mm@...ck.org, edumazet@...gle.com,
        Andrew Morton <akpm@...ux-foundation.org>,
        virtualization@...ts.linux-foundation.org,
        David Miller <davem@...emloft.net>,
        Vlastimil Babka <vbabka@...e.cz>
Subject: Re: [dm-devel] [PATCH v5] fault-injection: introduce kvmalloc
 fallback options

On Thu, Apr 26, 2018 at 03:36:14PM -0400, Mikulas Patocka wrote:
> People on this list argue "this should be a kernel parameter".

How about making it a writeable attribute, so it's easy to turn on/off
after boot. Then you can keep it deterministic, userspace can play with
the attribute at random if it wants to.

-- 
MST