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From: Christoph Hellwig <hch@infradead.org>
To: Michal Hocko <mhocko@suse.com>
Cc: Christoph Hellwig <hch@infradead.org>,
	Vlastimil Babka <vbabka@suse.cz>, Barry Song <21cnbao@gmail.com>,
	akpm@linux-foundation.org, linux-mm@kvack.org,
	42.hyeyoo@gmail.com, cl@linux.com, iamjoonsoo.kim@lge.com,
	lstoakes@gmail.com, penberg@kernel.org, rientjes@google.com,
	roman.gushchin@linux.dev, urezki@gmail.com,
	v-songbaohua@oppo.com, virtualization@lists.linux.dev,
	hailong.liu@oppo.com, torvalds@linux-foundation.org
Subject: Re: [PATCH RFC 5/5] non-mm: discourage the usage of __GFP_NOFAIL and encourage GFP_NOFAIL
Date: Wed, 24 Jul 2024 06:55:05 -0700	[thread overview]
Message-ID: <ZqEHuaUGuuUaL_AY@infradead.org> (raw)
In-Reply-To: <ZqEGAh6R7yoR5L1n@tiehlicka>

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.

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



  reply	other threads:[~2024-07-24 13:55 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-07-24  8:55 [PATCH 0/5] mm: clarify nofail memory allocation Barry Song
2024-07-24  8:55 ` [PATCH RFC 1/5] vpda: try to fix the potential crash due to misusing __GFP_NOFAIL Barry Song
2024-07-24 12:26   ` Michal Hocko
2024-07-24 22:50     ` Barry Song
2024-07-25  6:08       ` Michal Hocko
2024-07-25  7:00         ` Barry Song
2024-07-29  3:42           ` Jason Wang
2024-07-29  6:05             ` Barry Song
     [not found]               ` <CACGkMEuv4M_NaUQPHH59MPevGoJJoYb70LykcCODD=nUvik3ZQ@mail.gmail.com>
2024-07-30  3:08                 ` Barry Song
2024-07-24  8:55 ` [PATCH 2/5] mm: Document __GFP_NOFAIL must be blockable Barry Song
2024-07-24 11:58   ` Michal Hocko
2024-08-03 23:09   ` Davidlohr Bueso
2024-07-24  8:55 ` [PATCH 3/5] mm: BUG_ON to avoid NULL deference while __GFP_NOFAIL fails Barry Song
2024-07-24 10:03   ` Vlastimil Babka
2024-07-24 10:11     ` Barry Song
2024-07-24 12:10   ` Michal Hocko
2024-07-24  8:55 ` [PATCH 4/5] mm: Introduce GFP_NOFAIL with the inclusion of __GFP_RECLAIM Barry Song
2024-07-24 12:12   ` Michal Hocko
2024-07-24  8:55 ` [PATCH RFC 5/5] non-mm: discourage the usage of __GFP_NOFAIL and encourage GFP_NOFAIL Barry Song
2024-07-24  9:53   ` Vlastimil Babka
2024-07-24  9:58     ` Barry Song
2024-07-24 13:14       ` Christoph Hellwig
2024-07-24 12:25     ` Michal Hocko
2024-07-24 13:13     ` Christoph Hellwig
2024-07-24 13:21       ` Michal Hocko
2024-07-24 13:23         ` Christoph Hellwig
2024-07-24 13:31           ` Michal Hocko
2024-07-24 13:33             ` Vlastimil Babka
2024-07-24 13:38               ` Christoph Hellwig
2024-07-24 13:47                 ` Michal Hocko
2024-07-24 13:55                   ` Christoph Hellwig [this message]
2024-07-24 14:39                     ` Vlastimil Babka
2024-07-24 14:41                       ` Christoph Hellwig
2024-07-25  1:47                         ` Barry Song
2024-07-29  9:56                           ` Barry Song
2024-07-29 10:03                             ` Vlastimil Babka
2024-07-29 10:16                               ` Barry Song
2024-07-24 12:17   ` Michal Hocko
2024-07-25  1:38     ` Barry Song
2024-07-25  6:16       ` Michal Hocko
2024-07-26 21:08         ` Davidlohr Bueso
2024-07-29 11:50           ` Michal Hocko
2024-08-03 22:15             ` Davidlohr Bueso
2024-08-05  7:49               ` Michal Hocko

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