From: Hao Li <hao.li@linux.dev>
To: "Vlastimil Babka (SUSE)" <vbabka@kernel.org>
Cc: Harry Yoo <harry@kernel.org>, Christoph Lameter <cl@gentwo.org>,
David Rientjes <rientjes@google.com>,
Roman Gushchin <roman.gushchin@linux.dev>,
Suren Baghdasaryan <surenb@google.com>,
Alexei Starovoitov <ast@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Johannes Weiner <hannes@cmpxchg.org>,
Michal Hocko <mhocko@kernel.org>,
Shakeel Butt <shakeel.butt@linux.dev>,
Alexander Potapenko <glider@google.com>,
Marco Elver <elver@google.com>,
Dmitry Vyukov <dvyukov@google.com>,
kasan-dev@googlegroups.com, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, cgroups@vger.kernel.org
Subject: Re: [PATCH v2 16/16] mm/slab: replace __GFP_NO_OBJ_EXT with SLAB_ALLOC_NO_RECURSE for sheaves
Date: Fri, 12 Jun 2026 16:16:53 +0800 [thread overview]
Message-ID: <aiu_5Y5PEtAMMNJO@fedora> (raw)
In-Reply-To: <20260610-slab_alloc_flags-v2-16-7190909db118@kernel.org>
On Wed, Jun 10, 2026 at 05:40:18PM +0200, Vlastimil Babka (SUSE) wrote:
> Finish the switch away from __GFP_NO_OBJ_EXT by replacing it with
> SLAB_ALLOC_NO_RECURSE when allocating empty sheaves. Pass alloc_flags to
> [__]alloc_empty_sheaf(). Callers that can't be part of a recursive
> kmalloc() chain simply pass SLAB_ALLOC_DEFAULT. Use kmalloc_flags()
> instead of kzalloc() for allocating the sheaf.
>
> This leaves __GFP_NO_OBJ_EXT with no users in slab, so stop allowing the
> flag in kmalloc_nolock().
>
> Signed-off-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
> ---
Reviewed-by: Hao Li <hao.li@linux.dev>
--
Thanks,
Hao
prev parent reply other threads:[~2026-06-12 8:17 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-10 15:40 [PATCH v2 00/16] mm/slab: introduce alloc_flags and slab_alloc_context Vlastimil Babka (SUSE)
2026-06-10 15:40 ` [PATCH v2 01/16] mm/slab: do not limit zeroing to orig_size when only red zoning is enabled Vlastimil Babka (SUSE)
2026-06-11 4:28 ` Harry Yoo
2026-06-12 3:47 ` Hao Li
2026-06-10 15:40 ` [PATCH v2 02/16] mm/slab: do not init any kfence objects on allocation Vlastimil Babka (SUSE)
2026-06-11 3:19 ` Harry Yoo
2026-06-11 8:34 ` Vlastimil Babka (SUSE)
2026-06-11 14:47 ` Vlastimil Babka (SUSE)
2026-06-11 15:11 ` Harry Yoo
2026-06-11 16:37 ` Vlastimil Babka (SUSE)
2026-06-10 15:40 ` [PATCH v2 03/16] mm/slab: stop inlining __slab_alloc_node() Vlastimil Babka (SUSE)
2026-06-12 3:48 ` Hao Li
2026-06-10 15:40 ` [PATCH v2 04/16] mm/slab: introduce slab_alloc_context Vlastimil Babka (SUSE)
2026-06-11 4:49 ` Harry Yoo
2026-06-12 3:10 ` Hao Li
2026-06-12 9:51 ` Vlastimil Babka (SUSE)
2026-06-10 15:40 ` [PATCH v2 05/16] mm/slab: introduce alloc_flags and SLAB_ALLOC_TRYLOCK Vlastimil Babka (SUSE)
2026-06-11 4:57 ` Harry Yoo
2026-06-11 6:40 ` Harry Yoo
2026-06-11 8:51 ` Vlastimil Babka (SUSE)
2026-06-12 3:49 ` Hao Li
2026-06-10 15:40 ` [PATCH v2 06/16] mm/slab: add alloc_flags to slab_alloc_context Vlastimil Babka (SUSE)
2026-06-11 5:06 ` Harry Yoo
2026-06-12 3:50 ` Hao Li
2026-06-10 15:40 ` [PATCH v2 07/16] mm/slab: replace struct partial_context with slab_alloc_context Vlastimil Babka (SUSE)
2026-06-11 6:05 ` Harry Yoo
2026-06-12 4:04 ` Hao Li
2026-06-12 9:56 ` Vlastimil Babka (SUSE)
2026-06-10 15:40 ` [PATCH v2 08/16] mm/slab: pass alloc_flags to new slab allocation Vlastimil Babka (SUSE)
2026-06-11 7:52 ` Harry Yoo
2026-06-12 5:26 ` Hao Li
2026-06-12 9:59 ` Vlastimil Babka (SUSE)
2026-06-10 15:40 ` [PATCH v2 09/16] mm/slab: pass alloc_flags through slab_post_alloc_hook() chain Vlastimil Babka (SUSE)
2026-06-10 15:40 ` [PATCH v2 10/16] mm/slab: replace slab_alloc_node() parameters with slab_alloc_context Vlastimil Babka (SUSE)
2026-06-12 5:28 ` Hao Li
2026-06-10 15:40 ` [PATCH v2 11/16] mm/slab: allow kmem_cache_alloc_bulk() with any gfp flags Vlastimil Babka (SUSE)
2026-06-12 3:21 ` Hao Li
2026-06-12 10:05 ` Vlastimil Babka (SUSE)
2026-06-10 15:40 ` [PATCH v2 12/16] mm/slab: pass slab_alloc_context to __do_kmalloc_node() Vlastimil Babka (SUSE)
2026-06-12 5:34 ` Hao Li
2026-06-10 15:40 ` [PATCH v2 13/16] mm/slab: allow __GFP_NOMEMALLOC and __GFP_NOWARN for kmalloc_nolock() Vlastimil Babka (SUSE)
2026-06-12 6:57 ` Hao Li
2026-06-10 15:40 ` [PATCH v2 14/16] mm/slab: introduce kmalloc_flags() Vlastimil Babka (SUSE)
2026-06-12 8:02 ` Hao Li
2026-06-10 15:40 ` [PATCH v2 15/16] mm/slab: remove __GFP_NO_OBJ_EXT usage from alloc_slab_obj_exts() Vlastimil Babka (SUSE)
2026-06-11 16:28 ` Vlastimil Babka (SUSE)
2026-06-12 6:54 ` Hao Li
2026-06-12 10:17 ` Vlastimil Babka (SUSE)
2026-06-12 11:29 ` Hao Li
2026-06-10 15:40 ` [PATCH v2 16/16] mm/slab: replace __GFP_NO_OBJ_EXT with SLAB_ALLOC_NO_RECURSE for sheaves Vlastimil Babka (SUSE)
2026-06-12 8:16 ` Hao Li [this message]
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