Re: [PATCH 14/30] mm/vma: minor cleanup of expand_[upwards, downwards]()

Gregory Price <[email protected]> Thu, 9 Jul 2026 11:20:44 -0400
Newsgroups org.kernel.vger.linux-sgx,dev.linux.lists.damon,dev.linux.lists.iommu,dev.linux.lists.nvdimm,org.freedesktop.lists.dri-devel,org.kernel.vger.kvm,org.kernel.vger.linux-arm-msm,org.kernel.vger.linux-fsdevel,org.kernel.vger.linux-kernel,org.kernel.vger.linux-parisc,org.kernel.vger.linux-perf-users,org.kernel.vger.linux-tegra,org.kernel.vger.linux-trace-kernel,org.kvack.linux-mm
Message-ID <ak-8TKDC1GBOeMOM@gourry-fedora-PF4VCD3F>
On Mon, Jun 29, 2026 at 01:23:25PM +0100, Lorenzo Stoakes wrote:
> Adjust the stack expansion functions expand_upwards() and
> expand_downwards() such that they are expressed in terms of named constant
> values, and make use of vma_start_pgoff().
> 
> This clearly documents that we are referencing the page offset of the start
> of the VMA.
> 
> Additionally this cleans up the overflow check in expand_upwards().
> 
> No functional change intended.
> 
> Signed-off-by: Lorenzo Stoakes <[email protected]>

Reviewed-by: Gregory Price <[email protected]>