From: David Hildenbrand <david@redhat.com>
To: Alexandru Elisei <alexandru.elisei@arm.com>,
catalin.marinas@arm.com, will@kernel.org, oliver.upton@linux.dev,
maz@kernel.org, james.morse@arm.com, suzuki.poulose@arm.com,
yuzenghui@huawei.com, arnd@arndb.de, akpm@linux-foundation.org,
mingo@redhat.com, peterz@infradead.org, juri.lelli@redhat.com,
vincent.guittot@linaro.org, dietmar.eggemann@arm.com,
rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de,
bristot@redhat.com, vschneid@redhat.com, mhiramat@kernel.org,
rppt@kernel.org, hughd@google.com
Cc: pcc@google.com, steven.price@arm.com, anshuman.khandual@arm.com,
vincenzo.frascino@arm.com, eugenis@google.com, kcc@google.com,
hyesoo.yu@samsung.com, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, kvmarm@lists.linux.dev,
linux-fsdevel@vger.kernel.org, linux-arch@vger.kernel.org,
linux-mm@kvack.org, linux-trace-kernel@vger.kernel.org
Subject: Re: [PATCH RFC v2 06/27] mm: page_alloc: Allow an arch to hook early into free_pages_prepare()
Date: Fri, 24 Nov 2023 20:36:52 +0100 [thread overview]
Message-ID: <45466b05-d620-41e5-8a2b-05c420b8fa7b@redhat.com> (raw)
In-Reply-To: <20231119165721.9849-7-alexandru.elisei@arm.com>
On 19.11.23 17:57, Alexandru Elisei wrote:
> Add arch_free_pages_prepare() hook that is called before that page flags
> are cleared. This will be used by arm64 when explicit management of tag
> storage pages is enabled.
Can you elaborate a bit what exactly will be done by that code with that
information?
--
Cheers,
David / dhildenb
next prev parent reply other threads:[~2023-11-24 19:36 UTC|newest]
Thread overview: 98+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-19 16:56 [PATCH RFC v2 00/27] Add support for arm64 MTE dynamic tag storage reuse Alexandru Elisei
2023-11-19 16:56 ` [PATCH RFC v2 01/27] arm64: mte: Rework naming for tag manipulation functions Alexandru Elisei
2023-11-19 16:56 ` [PATCH RFC v2 02/27] arm64: mte: Rename __GFP_ZEROTAGS to __GFP_TAGGED Alexandru Elisei
2023-11-19 16:56 ` [PATCH RFC v2 03/27] mm: cma: Make CMA_ALLOC_SUCCESS/FAIL count the number of pages Alexandru Elisei
2023-11-19 16:56 ` [PATCH RFC v2 04/27] mm: migrate/mempolicy: Add hook to modify migration target gfp Alexandru Elisei
2023-11-25 10:03 ` Mike Rapoport
2023-11-27 11:52 ` Alexandru Elisei
2023-11-28 6:49 ` Mike Rapoport
2023-11-28 17:21 ` Alexandru Elisei
2023-11-19 16:56 ` [PATCH RFC v2 05/27] mm: page_alloc: Add an arch hook to allow prep_new_page() to fail Alexandru Elisei
2023-11-24 19:35 ` David Hildenbrand
2023-11-27 12:09 ` Alexandru Elisei
2023-11-28 16:57 ` David Hildenbrand
2023-11-28 17:17 ` Alexandru Elisei
2023-11-19 16:57 ` [PATCH RFC v2 06/27] mm: page_alloc: Allow an arch to hook early into free_pages_prepare() Alexandru Elisei
2023-11-24 19:36 ` David Hildenbrand [this message]
2023-11-27 13:03 ` Alexandru Elisei
2023-11-28 16:58 ` David Hildenbrand
2023-11-28 17:17 ` Alexandru Elisei
2023-11-19 16:57 ` [PATCH RFC v2 07/27] mm: page_alloc: Add an arch hook to filter MIGRATE_CMA allocations Alexandru Elisei
2023-11-19 16:57 ` [PATCH RFC v2 08/27] mm: page_alloc: Partially revert "mm: page_alloc: remove stale CMA guard code" Alexandru Elisei
2023-11-19 16:57 ` [PATCH RFC v2 09/27] mm: Allow an arch to hook into folio allocation when VMA is known Alexandru Elisei
2023-11-19 16:57 ` [PATCH RFC v2 10/27] mm: Call arch_swap_prepare_to_restore() before arch_swap_restore() Alexandru Elisei
2023-11-19 16:57 ` [PATCH RFC v2 11/27] arm64: mte: Reserve tag storage memory Alexandru Elisei
2023-11-29 8:44 ` Hyesoo Yu
2023-11-30 11:56 ` Alexandru Elisei
2023-12-03 12:14 ` Alexandru Elisei
2023-12-08 5:03 ` Hyesoo Yu
2023-12-11 14:45 ` Alexandru Elisei
2023-12-11 17:29 ` Rob Herring
2023-12-12 16:38 ` Alexandru Elisei
2023-12-12 18:44 ` Rob Herring
2023-12-13 13:04 ` Alexandru Elisei
2023-12-13 14:06 ` Rob Herring
2023-12-13 14:51 ` Alexandru Elisei
2023-12-13 17:22 ` Rob Herring
2023-12-13 17:44 ` Alexandru Elisei
2023-12-13 20:30 ` Rob Herring
2023-12-14 15:45 ` Alexandru Elisei
2023-12-14 18:55 ` Rob Herring
2023-12-18 10:59 ` Alexandru Elisei
2023-11-19 16:57 ` [PATCH RFC v2 12/27] arm64: mte: Add tag storage pages to the MIGRATE_CMA migratetype Alexandru Elisei
2023-11-24 19:40 ` David Hildenbrand
2023-11-27 15:01 ` Alexandru Elisei
2023-11-28 17:03 ` David Hildenbrand
2023-11-29 10:44 ` Alexandru Elisei
2023-11-19 16:57 ` [PATCH RFC v2 13/27] arm64: mte: Make tag storage depend on ARCH_KEEP_MEMBLOCK Alexandru Elisei
2023-11-24 19:51 ` David Hildenbrand
2023-11-27 15:04 ` Alexandru Elisei
2023-11-28 17:05 ` David Hildenbrand
2023-11-29 10:46 ` Alexandru Elisei
2023-11-19 16:57 ` [PATCH RFC v2 14/27] arm64: mte: Disable dynamic tag storage management if HW KASAN is enabled Alexandru Elisei
2023-11-24 19:54 ` David Hildenbrand
2023-11-27 15:07 ` Alexandru Elisei
2023-11-28 17:05 ` David Hildenbrand
2023-11-19 16:57 ` [PATCH RFC v2 15/27] arm64: mte: Check that tag storage blocks are in the same zone Alexandru Elisei
2023-11-24 19:56 ` David Hildenbrand
2023-11-27 15:10 ` Alexandru Elisei
2023-11-29 8:57 ` Hyesoo Yu
2023-11-30 12:00 ` Alexandru Elisei
2023-12-08 5:27 ` Hyesoo Yu
2023-12-11 14:21 ` Alexandru Elisei
2023-11-19 16:57 ` [PATCH RFC v2 16/27] arm64: mte: Manage tag storage on page allocation Alexandru Elisei
2023-11-29 9:10 ` Hyesoo Yu
2023-11-29 13:33 ` Alexandru Elisei
2023-12-08 5:29 ` Hyesoo Yu
2023-11-19 16:57 ` [PATCH RFC v2 17/27] arm64: mte: Perform CMOs for tag blocks on tagged page allocation/free Alexandru Elisei
2023-11-19 16:57 ` [PATCH RFC v2 18/27] arm64: mte: Reserve tag block for the zero page Alexandru Elisei
2023-11-28 17:06 ` David Hildenbrand
2023-11-29 11:30 ` Alexandru Elisei
2023-11-29 13:13 ` David Hildenbrand
2023-11-29 13:41 ` Alexandru Elisei
2023-11-19 16:57 ` [PATCH RFC v2 19/27] mm: mprotect: Introduce PAGE_FAULT_ON_ACCESS for mprotect(PROT_MTE) Alexandru Elisei
2023-11-28 17:55 ` David Hildenbrand
2023-11-28 18:00 ` David Hildenbrand
2023-11-29 11:55 ` Alexandru Elisei
2023-11-29 12:48 ` David Hildenbrand
2023-11-29 9:27 ` Hyesoo Yu
2023-11-30 12:06 ` Alexandru Elisei
2023-11-30 12:49 ` David Hildenbrand
2023-11-30 13:32 ` Alexandru Elisei
2023-11-30 13:43 ` David Hildenbrand
2023-11-30 14:33 ` Alexandru Elisei
2023-11-30 14:39 ` David Hildenbrand
2023-11-19 16:57 ` [PATCH RFC v2 20/27] mm: hugepage: Handle huge page fault on access Alexandru Elisei
2023-11-22 1:28 ` Peter Collingbourne
2023-11-22 9:22 ` Alexandru Elisei
2023-11-28 17:56 ` David Hildenbrand
2023-11-29 11:56 ` Alexandru Elisei
2023-11-19 16:57 ` [PATCH RFC v2 21/27] mm: arm64: Handle tag storage pages mapped before mprotect(PROT_MTE) Alexandru Elisei
2023-11-28 5:39 ` Peter Collingbourne
2023-11-30 17:43 ` Alexandru Elisei
2023-11-19 16:57 ` [PATCH RFC v2 22/27] arm64: mte: swap: Handle tag restoring when missing tag storage Alexandru Elisei
2023-11-19 16:57 ` [PATCH RFC v2 23/27] arm64: mte: copypage: " Alexandru Elisei
2023-11-19 16:57 ` [PATCH RFC v2 24/27] arm64: mte: Handle fatal signal in reserve_tag_storage() Alexandru Elisei
2023-11-19 16:57 ` [PATCH RFC v2 25/27] KVM: arm64: Disable MTE if tag storage is enabled Alexandru Elisei
2023-11-19 16:57 ` [PATCH RFC v2 26/27] arm64: mte: Fast track reserving tag storage when the block is free Alexandru Elisei
2023-11-19 16:57 ` [PATCH RFC v2 27/27] arm64: mte: Enable dynamic tag storage reuse Alexandru Elisei
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