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

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Message-ID: <ZFqxEWqD19eHe353@infradead.org>
Date:   Tue, 9 May 2023 13:46:09 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Kent Overstreet <kent.overstreet@...ux.dev>
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 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.

No, we will never add back a way for random code allocating executable
memory in kernel space.