Re: [PATCH RFC 5/5] non-mm: discourage the usage of __GFP_NOFAIL and encourage GFP_NOFAIL

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On 7/24/24 3:55 PM, Christoph Hellwig wrote:
> On Wed, Jul 24, 2024 at 03:47:46PM +0200, Michal Hocko wrote:
>> OK, now it makes more sense ;) I have absolutely no objections to
>> prefering scoped NO{FS,IO} interfaces of course. And that would indeed
>> eliminate a need for defining GFP_NO{FS,IO}_NOFAIL alternatives.
> 
> Yes.  My proposal would be:
> 
> GFP_NOFAIL without any modifiers it the only valid nofail API.

Where GFP_NOFAIL is GFP_KERNEL | __GFP_NOFAIL (and not the more limited one
as defined in patch 4/5).

> File systems / drivers can combine іt with the scoped nofs/noio if
> needed.

Sounds good, how quickly we can convert existing __GFP_NOFAIL users remains
to be seen...




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