linux-kernel - Re: [PATCH v3] vmalloc: Add the right hint when vmalloc failed

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Message-ID: <20200710135301.GM12769@casper.infradead.org>
Date:   Fri, 10 Jul 2020 14:53:01 +0100
From:   Matthew Wilcox <willy@...radead.org>
To:     Uladzislau Rezki <urezki@...il.com>
Cc:     Tian Tao <tiantao6@...ilicon.com>, akpm@...ux-foundation.org,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        linuxarm@...wei.com
Subject: Re: [PATCH v3] vmalloc: Add the right hint when vmalloc failed

On Fri, Jul 10, 2020 at 03:49:56PM +0200, Uladzislau Rezki wrote:
> > On Fri, Jul 10, 2020 at 08:17:52PM +0800, Tian Tao wrote:
> > > In fact "vmalloc=<size>" cmdline option is not available on many
> > > platforms.When the user encounters this error, add the correct
> > > hint to prevent misleading.
> > 
> > i don't think this is an improvement.
> >
> Matthew, maybe it should not be considered as improvements?

Every patch should be an improvement along some dimension.  This doesn't
feel like an improvement in any way.

> It is rather an extra information that indicates that your
> ARCH may not support "vmalloc" early parameter.

If anything needs to be improved, it's the documentation, not this
error message.