Re: [PATCH] mm: fix unexpected changes to {failslab|fail_page_alloc}.attr

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On 2022/11/7 20:42, Jason Gunthorpe wrote:
On Mon, Nov 07, 2022 at 11:31:09AM +0800, Qi Zheng wrote:

@@ -31,9 +33,9 @@ bool __should_failslab(struct kmem_cache *s, gfp_t gfpflags)
  		return false;
if (gfpflags & __GFP_NOWARN)
-		failslab.attr.no_warn = true;
+		flags |= FAULT_NOWARN;

You should add a comment here about why this is required, to avoid
deadlocking printk

I think this comment should be placed where __GFP_NOWARN is specified
instead of here. What do you think? :)

Thanks,
Qi


Jason

--
Thanks,
Qi




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