From: Dev Jain <dev.jain@arm.com>
To: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,
Ryan Roberts <ryan.roberts@arm.com>
Cc: akpm@linux-foundation.org, david@redhat.com, willy@infradead.org,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
catalin.marinas@arm.com, will@kernel.org,
Liam.Howlett@oracle.com, vbabka@suse.cz, jannh@google.com,
anshuman.khandual@arm.com, peterx@redhat.com, joey.gouly@arm.com,
ioworker0@gmail.com, baohua@kernel.org, kevin.brodsky@arm.com,
quic_zhenhuah@quicinc.com, christophe.leroy@csgroup.eu,
yangyicong@hisilicon.com, linux-arm-kernel@lists.infradead.org,
hughd@google.com, yang@os.amperecomputing.com, ziy@nvidia.com
Subject: Re: [PATCH v4 3/4] mm: Optimize mprotect() by PTE-batching
Date: Wed, 2 Jul 2025 20:33:39 +0530 [thread overview]
Message-ID: <1d1312e8-325f-404c-9ea4-03b38ed7b1e1@arm.com> (raw)
In-Reply-To: <3ce333ae-dae2-4341-83c5-39877b6f2bd4@lucifer.local>
On 02/07/25 4:02 pm, Lorenzo Stoakes wrote:
> On Tue, Jul 01, 2025 at 02:40:14PM +0100, Lorenzo Stoakes wrote:
>> Let me fiddle with this code and see if I can suggest something sensible.
> OK this is _even more fiddly_ than I thought.
>
> Dev - feel free to do a respin (once David's stuff's landed in mm-new, which I
> think maybe it has now?), and we can maybe discuss a v6 with everything else in
> place if this is still problematic.
>
> Ryan mentioned an iterator solution, which actually now seems sensible here, if
> fiddly. Please do try to attack that in v5 to see if something's workable there.
>
> Why are computers so complicated...
Sure! I'll be out next week so the mm list can take a breather from my patches : )
My brain exploded trying to understand your and Ryan's implementation conversation,
will read it all and try to come up with something nice.
next prev parent reply other threads:[~2025-07-02 15:04 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-28 11:34 [PATCH v4 0/4] Optimize mprotect() for large folios Dev Jain
2025-06-28 11:34 ` [PATCH v4 1/4] mm: Optimize mprotect() for MM_CP_PROT_NUMA by batch-skipping PTEs Dev Jain
2025-06-30 9:42 ` Ryan Roberts
2025-06-30 9:49 ` Dev Jain
2025-06-30 9:55 ` Ryan Roberts
2025-06-30 10:05 ` Dev Jain
2025-06-30 11:25 ` Lorenzo Stoakes
2025-06-30 11:39 ` Ryan Roberts
2025-06-30 11:53 ` Lorenzo Stoakes
2025-06-30 11:40 ` Dev Jain
2025-06-30 11:51 ` Lorenzo Stoakes
2025-06-30 11:56 ` Dev Jain
2025-07-02 9:37 ` Lorenzo Stoakes
2025-07-02 15:01 ` Dev Jain
2025-07-02 15:37 ` Lorenzo Stoakes
2025-06-28 11:34 ` [PATCH v4 2/4] mm: Add batched versions of ptep_modify_prot_start/commit Dev Jain
2025-06-30 10:10 ` Ryan Roberts
2025-06-30 10:17 ` Dev Jain
2025-06-30 10:35 ` Ryan Roberts
2025-06-30 10:42 ` Dev Jain
2025-06-30 12:57 ` Lorenzo Stoakes
2025-07-01 4:44 ` Dev Jain
2025-07-01 7:33 ` Ryan Roberts
2025-07-01 8:06 ` Lorenzo Stoakes
2025-07-01 8:23 ` Ryan Roberts
2025-07-01 8:34 ` Lorenzo Stoakes
2025-06-28 11:34 ` [PATCH v4 3/4] mm: Optimize mprotect() by PTE-batching Dev Jain
2025-06-28 12:39 ` Dev Jain
2025-06-30 10:31 ` Ryan Roberts
2025-06-30 11:21 ` Dev Jain
2025-06-30 11:47 ` Dev Jain
2025-06-30 11:50 ` Ryan Roberts
2025-06-30 11:53 ` Dev Jain
2025-07-01 5:47 ` Dev Jain
2025-07-01 7:39 ` Ryan Roberts
2025-06-30 12:52 ` Lorenzo Stoakes
2025-07-01 5:30 ` Dev Jain
[not found] ` <ec2c3f60-43e9-47d9-9058-49d608845200@arm.com>
2025-07-01 8:06 ` Dev Jain
2025-07-01 8:24 ` Ryan Roberts
2025-07-01 8:15 ` Lorenzo Stoakes
2025-07-01 8:30 ` Ryan Roberts
2025-07-01 8:51 ` Lorenzo Stoakes
2025-07-01 9:53 ` Ryan Roberts
2025-07-01 10:21 ` Lorenzo Stoakes
2025-07-01 11:31 ` Ryan Roberts
2025-07-01 13:40 ` Lorenzo Stoakes
2025-07-02 10:32 ` Lorenzo Stoakes
2025-07-02 15:03 ` Dev Jain [this message]
2025-07-02 15:22 ` Lorenzo Stoakes
2025-07-03 12:59 ` David Hildenbrand
2025-06-28 11:34 ` [PATCH v4 4/4] arm64: Add batched versions of ptep_modify_prot_start/commit Dev Jain
2025-06-30 10:43 ` Ryan Roberts
2025-06-29 23:05 ` [PATCH v4 0/4] Optimize mprotect() for large folios Andrew Morton
2025-06-30 3:33 ` Dev Jain
2025-06-30 10:45 ` Ryan Roberts
2025-06-30 11:22 ` Dev Jain
2025-06-30 11:17 ` Lorenzo Stoakes
2025-06-30 11:25 ` Dev Jain
2025-06-30 11:27 ` Lorenzo Stoakes
2025-06-30 11:43 ` Dev Jain
2025-07-01 0:08 ` Andrew Morton
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