Re: [PATCH v2 3/6] mm/vma: only permit MAP_PRIVATE /dev/zero to be mapped anonymous
From: "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
Date: 2026-09-08 12:53:31
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linux-fsdevel, linux-kselftest, lkml
On Tue, Sep 08, 2026 at 02:49:33PM +0200, David Hildenbrand (Arm) wrote:
quoted
+ /* Temporary MAP_PRIVATE-/dev/zero workaround. */ + if (is_anon && map->file) + vma_set_anonymous(vma); + if (error) goto free_iter_vma;@@ -2777,6 +2793,10 @@ static int call_mmap_prepare(struct mmap_state *map, if (err) return err; + /* Hooks cannot mark themselves anonymous. */Wasn't this supposed to be reworked? :)
It is, you yourself pointed out 4/6 makes this irrelevant, so I changed it there :)
In any case, Acked-by: David Hildenbrand (Arm) <david@kernel.org> -- Cheers, David
-- Cheers, Lorenzo