linux-kernel - Re: [PATCH 07/32] mm: Bring back vmalloc

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Message-ID: <ZFqp1UEjM8ibrCWT@moria.home.lan>
Date:   Tue, 9 May 2023 16:15:17 -0400
From:   Kent Overstreet <kent.overstreet@...ux.dev>
To:     Lorenzo Stoakes <lstoakes@...il.com>
Cc:     linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-bcachefs@...r.kernel.org,
        Kent Overstreet <kent.overstreet@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Uladzislau Rezki <urezki@...il.com>,
        Christoph Hellwig <hch@...radead.org>, linux-mm@...ck.org
Subject: Re: [PATCH 07/32] mm: Bring back vmalloc_exec

On Tue, May 09, 2023 at 11:19:38AM -0700, Lorenzo Stoakes wrote:
> On Tue, May 09, 2023 at 12:56:32PM -0400, Kent Overstreet wrote:
> > From: Kent Overstreet <kent.overstreet@...il.com>
> >
> > This is needed for bcachefs, which dynamically generates per-btree node
> > unpack functions.
> 
> Small nits -
> 
> Would be good to refer to the original patch that removed it,
> i.e. 7a0e27b2a0ce ("mm: remove vmalloc_exec") something like 'patch
> ... folded vmalloc_exec() into its one user, however bcachefs requires this
> as well so revert'.
> 
> Would also be good to mention that you are now exporting the function which
> the original didn't appear to do.
> 
> >
> > Signed-off-by: Kent Overstreet <kent.overstreet@...ux.dev>
> > Cc: Andrew Morton <akpm@...ux-foundation.org>
> > Cc: Uladzislau Rezki <urezki@...il.com>
> > Cc: Christoph Hellwig <hch@...radead.org>
> > Cc: linux-mm@...ck.org
> 
> Another nit: I'm a vmalloc reviewer so would be good to get cc'd too :)
> (forgivable mistake as very recent change!)

Thanks - folded your suggestions into the commit message, and added you
for the next posting :)