On Thu, Sep 15, 2022 at 04:25:19PM +0200, Jann Horn wrote:
> This is a stable-specific patch.
> I botched the stable-specific rewrite of
> commit b67fbebd4cf98 ("mmu_gather: Force tlb-flush VM_PFNMAP vmas"):
> As Hugh pointed out, unmap_region() actually operates on a list of VMAs,
> and the variable "vma" merely points to the first VMA in that list.
> So if we want to check whether any of the VMAs we're operating on is
> PFNMAP or MIXEDMAP, we have to iterate through the list and check each VMA.
>
> Signed-off-by: Jann Horn <jannh@xxxxxxxxxx>
> ---
> mm/mmap.c | 9 +++++++--
> 1 file changed, 7 insertions(+), 2 deletions(-)
Now queued up everywhere, thanks.
greg k-h
