Re: improve the kmem_cache_alloc_bulk API
Christoph Hellwig <[email protected]>
| Newsgroups | org.kernel.vger.io-uring,org.kernel.vger.bpf,org.kernel.vger.linux-arm-msm,org.kernel.vger.linux-kernel,org.kernel.vger.netdev,org.kvack.linux-mm |
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On Wed, May 27, 2026 at 04:07:12PM +0200, Vlastimil Babka (SUSE) wrote:
> commit 46dea1744498 ("slab: refill sheaves from all nodes") from this January.
> Previously it was just interrupts enabled.
>
> > but by requiring separate functions so I somehow doubt that was meant.
>
> Yeah, it's expressed by the _nolock variants. But slab propagates it internally
> by the gfp flags, and since 46dea1744498 it affects kmem_cache_alloc_bulk().
So what are the GFP flags that affect spinning? I can't find anything
related to that in either Documentation/core-api/memory-allocation.rst or
include/linux/gfp_types.h.