On Thu, Feb 29, 2024 at 09:39:17PM -0500, Kent Overstreet wrote: > On Fri, Mar 01, 2024 at 01:16:18PM +1100, NeilBrown wrote: > > Insisting that GFP_KERNEL allocations never returned NULL would allow us > > to remove a lot of untested error handling code.... > > If memcg ever gets enabled for all kernel side allocations we might > start seeing failures of GFP_KERNEL allocations. Why would we want that behaviour? A memcg-limited allocation should behave like any other allocation -- block until we've freed some other memory in this cgroup, either by swap or killing or ...
