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From: Suren Baghdasaryan <surenb@google.com>
To: "Liam R. Howlett" <Liam.Howlett@oracle.com>,
	Suren Baghdasaryan <surenb@google.com>,
	 Vlastimil Babka <vbabka@suse.cz>,
	Christoph Lameter <cl@gentwo.org>,
	David Rientjes <rientjes@google.com>,
	 Roman Gushchin <roman.gushchin@linux.dev>,
	Harry Yoo <harry.yoo@oracle.com>,
	 Uladzislau Rezki <urezki@gmail.com>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	 rcu@vger.kernel.org, maple-tree@lists.infradead.org
Subject: Re: [PATCH v5 12/14] maple_tree: Sheaf conversion
Date: Tue, 26 Aug 2025 19:07:10 -0700	[thread overview]
Message-ID: <CAJuCfpE8+u73+COnB=SHmjJKHYJncLgdt8VMGCXR3JDDZ0+s0w@mail.gmail.com> (raw)
In-Reply-To: <nhw4odptloo5dzmawss4q3mg7b5mtcfcs2z4flnqpduws7tlfj@hy75m647kp5z>

On Tue, Aug 26, 2025 at 7:22 AM Liam R. Howlett <Liam.Howlett@oracle.com> wrote:
>
> * Suren Baghdasaryan <surenb@google.com> [250822 16:18]:
> > On Wed, Jul 23, 2025 at 6:35 AM Vlastimil Babka <vbabka@suse.cz> wrote:
> > >
> > > From: "Liam R. Howlett" <Liam.Howlett@oracle.com>
> > >
> > > Use sheaves instead of bulk allocations.  This should speed up the
> > > allocations and the return path of unused allocations.
> >
> > Nice cleanup!
> >
> > >
> > > Remove push/pop of nodes from maple state.
> > > Remove unnecessary testing
> > > ifdef out other testing that probably will be deleted
> >
> > Should we simply remove them if they are unused?
>
> Yes, I think it's time to drop them.
>
> >
> > > Fix testcase for testing race
> > > Move some testing around in the same commit.
> >
> > Would it be possible to separate test changes from kernel changes into
> > another patch? Kernel part looks good to me but I don't know enough
> > about these tests to vote on that.
>
> Yes.  I'll do that.
>
> I'll drop testing first then the feature so that testing will continue
> to pass on bisection.
>
> I will also stop moving tests around in this change.
>
> >
> > >
> > > Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
> > > Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
> > > ---
> > >  include/linux/maple_tree.h       |   6 +-
> > >  lib/maple_tree.c                 | 331 ++++----------------
> > >  lib/test_maple_tree.c            |   8 +
> > >  tools/testing/radix-tree/maple.c | 632 +++++++--------------------------------
> > >  tools/testing/shared/linux.c     |   8 +-
> > >  5 files changed, 185 insertions(+), 800 deletions(-)
>
> ...
>
> I didn't see any changes in the code block, but please let me know if I
> missed them.

I was referring to the changes in include/linux/maple_tree.h and
lib/maple_tree.c as kernel changes and the rest as test changes.

>
>
> Thanks,
> Liam


  reply	other threads:[~2025-08-27  2:07 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-07-23 13:34 [PATCH v5 00/14] SLUB percpu sheaves Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 01/14] slab: add opt-in caching layer of " Vlastimil Babka
2025-08-18 10:09   ` Harry Yoo
2025-08-26  8:03     ` Vlastimil Babka
2025-08-19  4:19   ` Suren Baghdasaryan
2025-08-26  8:51     ` Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 02/14] slab: add sheaf support for batching kfree_rcu() operations Vlastimil Babka
2025-07-23 16:39   ` Uladzislau Rezki
2025-07-24 14:30     ` Vlastimil Babka
2025-07-24 17:36       ` Uladzislau Rezki
2025-07-23 13:34 ` [PATCH v5 03/14] slab: sheaf prefilling for guaranteed allocations Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 04/14] slab: determine barn status racily outside of lock Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 05/14] tools: Add testing support for changes to rcu and slab for sheaves Vlastimil Babka
2025-08-22 16:28   ` Suren Baghdasaryan
2025-08-26  9:32     ` Vlastimil Babka
2025-08-27  0:19       ` Suren Baghdasaryan
2025-07-23 13:34 ` [PATCH v5 06/14] tools: Add sheaves support to testing infrastructure Vlastimil Babka
2025-08-22 16:56   ` Suren Baghdasaryan
2025-08-26  9:59     ` Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 07/14] maple_tree: use percpu sheaves for maple_node_cache Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 08/14] mm, vma: use percpu sheaves for vm_area_struct cache Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 09/14] mm, slub: skip percpu sheaves for remote object freeing Vlastimil Babka
2025-08-25  5:22   ` Harry Yoo
2025-08-26 10:11     ` Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 10/14] mm, slab: allow NUMA restricted allocations to use percpu sheaves Vlastimil Babka
2025-08-22 19:58   ` Suren Baghdasaryan
2025-08-25  6:52   ` Harry Yoo
2025-08-26 10:49     ` Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 11/14] testing/radix-tree/maple: Increase readers and reduce delay for faster machines Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 12/14] maple_tree: Sheaf conversion Vlastimil Babka
2025-08-22 20:18   ` Suren Baghdasaryan
2025-08-26 14:22     ` Liam R. Howlett
2025-08-27  2:07       ` Suren Baghdasaryan [this message]
2025-08-28 14:27         ` Liam R. Howlett
2025-07-23 13:34 ` [PATCH v5 13/14] maple_tree: Add single node allocation support to maple state Vlastimil Babka
2025-08-22 20:25   ` Suren Baghdasaryan
2025-08-26 15:10     ` Liam R. Howlett
2025-08-27  2:03       ` Suren Baghdasaryan
2025-07-23 13:34 ` [PATCH v5 14/14] maple_tree: Convert forking to use the sheaf interface Vlastimil Babka
2025-08-22 20:29   ` Suren Baghdasaryan
2025-08-15 22:53 ` [PATCH v5 00/14] SLUB percpu sheaves Sudarsan Mahendran
2025-08-16  8:05   ` Harry Yoo
2025-08-16 17:35     ` Sudarsan Mahendran
2025-08-16 18:31       ` Vlastimil Babka
2025-08-16 18:33         ` Vlastimil Babka
2025-08-17  4:28           ` Sudarsan Mahendran

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