Re: [Kernel Bug] WARNING in mempool_alloc_noprof

[Christoph Hellwig]

On Tue, Feb 03, 2026 at 06:52:39PM +0900, Harry Yoo wrote:
> Maybe the changelog could be rephrased a bit,
> but overall LGTM, thanks!


No, that does not make sense.  If mempool is used with __GFP_RECLAIM in
the flags it won't fail, and if it isn't, GFP_NOFAIL can't work.

So if there is any work in mempool_alloc it's that it should warn about
GFP_NOFAIL.  The fix is in the callers to not pass the flag, assuming
current kernels still do this.