Messages in this thread | | | Date | Mon, 7 Nov 2022 12:35:56 +0800 | From | Baoquan He <> | Subject | Re: [PATCH 8/8] mm/slub, percpu: correct the calculation of early percpu allocation size |
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On 11/06/22 at 09:56pm, Vlastimil Babka wrote: > On 10/24/22 10:14, Baoquan He wrote: > > SLUB allocator relies on percpu allocator to initialize its ->cpu_slab > > during early boot. For that, the dynamic chunk of percpu which serves > > the early allocation need be large enough to satisfy the kmalloc > > creation. > > > > However, the current BUILD_BUG_ON() in alloc_kmem_cache_cpus() doesn't > > consider the kmalloc array with NR_KMALLOC_TYPES length. Fix that > > with correct calculation. > > > > Signed-off-by: Baoquan He <bhe@redhat.com> > > Cc: Christoph Lameter <cl@linux.com> > > Cc: Pekka Enberg <penberg@kernel.org> > > Cc: David Rientjes <rientjes@google.com> > > Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> > > Cc: Andrew Morton <akpm@linux-foundation.org> > > Cc: Vlastimil Babka <vbabka@suse.cz> > > Cc: Roman Gushchin <roman.gushchin@linux.dev> > > Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com> > > --- > > mm/slub.c | 3 ++- > > 1 file changed, 2 insertions(+), 1 deletion(-) > > As only slub is touched and there's no prerequsities in the previous > patches, I took this to the slab tree, branch > slab/for-6.2/cleanups
Yes, it only changes slub code. Thanks for taking it.
I will resend v2 with the left 7 percpu only patches with update.
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