From: Andrew Morton <akpm@linux-foundation.org>
To: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: David Hildenbrand <david@kernel.org>,
"Liam R . Howlett" <Liam.Howlett@oracle.com>,
Vlastimil Babka <vbabka@suse.cz>, Mike Rapoport <rppt@kernel.org>,
Suren Baghdasaryan <surenb@google.com>,
Michal Hocko <mhocko@suse.com>,
Shakeel Butt <shakeel.butt@linux.dev>,
Jann Horn <jannh@google.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
linux-rt-devel@lists.linux.dev,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>, Will Deacon <will@kernel.org>,
Boqun Feng <boqun.feng@gmail.com>,
Waiman Long <longman@redhat.com>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Clark Williams <clrkwllms@kernel.org>,
Steven Rostedt <rostedt@goodmis.org>
Subject: Re: [PATCH RESEND v3 00/10] mm: add and use vma_assert_stabilised() helper
Date: Thu, 22 Jan 2026 07:48:07 -0800 [thread overview]
Message-ID: <20260122074807.eccc6080b8d8ca5fc37b2a62@linux-foundation.org> (raw)
In-Reply-To: <cover.1769086312.git.lorenzo.stoakes@oracle.com>
On Thu, 22 Jan 2026 13:01:52 +0000 Lorenzo Stoakes <lorenzo.stoakes@oracle.com> wrote:
> Sometimes we wish to assert that a VMA is stable, that is - the VMA cannot
> be changed underneath us. This will be the case if EITHER the VMA lock or
> the mmap lock is held.
>
> We already open-code this in two places - anon_vma_name() in mm/madvise.c
> and vma_flag_set_atomic() in include/linux/mm.h.
>
> This series adds vma_assert_stablised() which abstract this can be used in
> these callsites instead.
Thanks, I added this to mm,git's mm-new branch.
It conflicts somewhat with your series "mm: add bitmap VMA flag helpers
and convert all mmap_prepare to use them". I believe that a new
version of that series is in the works so I removed it instead of
attempting to fix things up. Please lmk if I should attempt to perform
the repairs.
next prev parent reply other threads:[~2026-01-22 15:48 UTC|newest]
Thread overview: 73+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-22 13:01 Lorenzo Stoakes
2026-01-22 13:01 ` [PATCH RESEND v3 01/10] mm/vma: rename VMA_LOCK_OFFSET to VM_REFCNT_EXCLUDE_READERS_FLAG Lorenzo Stoakes
2026-01-22 16:26 ` Vlastimil Babka
2026-01-22 16:29 ` Lorenzo Stoakes
2026-01-23 13:52 ` Lorenzo Stoakes
2026-01-22 16:37 ` Suren Baghdasaryan
2026-01-23 13:26 ` Lorenzo Stoakes
2026-01-22 13:01 ` [PATCH RESEND v3 02/10] mm/vma: document possible vma->vm_refcnt values and reference comment Lorenzo Stoakes
2026-01-22 16:48 ` Vlastimil Babka
2026-01-22 17:28 ` Suren Baghdasaryan
2026-01-23 15:06 ` Lorenzo Stoakes
2026-01-23 13:45 ` Lorenzo Stoakes
2026-01-22 13:01 ` [PATCH RESEND v3 03/10] mm/vma: rename is_vma_write_only(), separate out shared refcount put Lorenzo Stoakes
2026-01-22 17:36 ` Vlastimil Babka
2026-01-22 19:31 ` Suren Baghdasaryan
2026-01-23 8:24 ` Vlastimil Babka
2026-01-23 14:52 ` Lorenzo Stoakes
2026-01-23 15:05 ` Vlastimil Babka
2026-01-23 15:07 ` Lorenzo Stoakes
2026-01-23 14:41 ` Lorenzo Stoakes
2026-01-26 10:04 ` Lorenzo Stoakes
2026-01-23 14:02 ` Lorenzo Stoakes
2026-01-22 13:01 ` [PATCH RESEND v3 04/10] mm/vma: add+use vma lockdep acquire/release defines Lorenzo Stoakes
2026-01-22 19:32 ` Suren Baghdasaryan
2026-01-22 19:41 ` Suren Baghdasaryan
2026-01-23 8:41 ` Vlastimil Babka
2026-01-23 15:08 ` Lorenzo Stoakes
2026-01-23 15:00 ` Lorenzo Stoakes
2026-01-23 8:48 ` Vlastimil Babka
2026-01-23 15:10 ` Lorenzo Stoakes
2026-01-22 13:01 ` [PATCH RESEND v3 05/10] mm/vma: de-duplicate __vma_enter_locked() error path Lorenzo Stoakes
2026-01-22 19:39 ` Suren Baghdasaryan
2026-01-23 15:11 ` Lorenzo Stoakes
2026-01-23 8:54 ` Vlastimil Babka
2026-01-23 15:10 ` Lorenzo Stoakes
2026-01-22 13:01 ` [PATCH v3 06/10] mm/vma: clean up __vma_enter/exit_locked() Lorenzo Stoakes
2026-01-22 13:08 ` Lorenzo Stoakes
2026-01-22 20:15 ` Suren Baghdasaryan
2026-01-22 20:55 ` Andrew Morton
2026-01-23 16:15 ` Lorenzo Stoakes
2026-01-23 16:33 ` Lorenzo Stoakes
2026-01-23 9:16 ` Vlastimil Babka
2026-01-23 16:17 ` Lorenzo Stoakes
2026-01-23 16:28 ` Lorenzo Stoakes
2026-01-22 13:01 ` [PATCH RESEND v3 07/10] mm/vma: introduce helper struct + thread through exclusive lock fns Lorenzo Stoakes
2026-01-22 21:41 ` Suren Baghdasaryan
2026-01-23 17:59 ` Lorenzo Stoakes
2026-01-23 19:34 ` Suren Baghdasaryan
2026-01-23 20:04 ` Lorenzo Stoakes
2026-01-23 22:07 ` Suren Baghdasaryan
2026-01-24 8:54 ` Lorenzo Stoakes
2026-01-26 6:09 ` Suren Baghdasaryan
2026-01-23 10:02 ` Vlastimil Babka
2026-01-23 18:18 ` Lorenzo Stoakes
2026-01-22 13:02 ` [PATCH RESEND v3 08/10] mm/vma: improve and document __is_vma_write_locked() Lorenzo Stoakes
2026-01-22 21:55 ` Suren Baghdasaryan
2026-01-23 16:21 ` Vlastimil Babka
2026-01-23 17:42 ` Suren Baghdasaryan
2026-01-23 18:44 ` Lorenzo Stoakes
2026-01-22 13:02 ` [PATCH RESEND v3 09/10] mm/vma: update vma_assert_locked() to use lockdep Lorenzo Stoakes
2026-01-22 22:02 ` Suren Baghdasaryan
2026-01-23 18:45 ` Lorenzo Stoakes
2026-01-23 16:55 ` Vlastimil Babka
2026-01-23 18:49 ` Lorenzo Stoakes
2026-01-22 13:02 ` [PATCH RESEND v3 10/10] mm/vma: add and use vma_assert_stabilised() Lorenzo Stoakes
2026-01-22 22:12 ` Suren Baghdasaryan
2026-01-23 18:54 ` Lorenzo Stoakes
2026-01-23 17:10 ` Vlastimil Babka
2026-01-23 18:51 ` Lorenzo Stoakes
2026-01-23 23:35 ` Hillf Danton
2026-01-22 15:48 ` Andrew Morton [this message]
2026-01-22 15:57 ` [PATCH RESEND v3 00/10] mm: add and use vma_assert_stabilised() helper Lorenzo Stoakes
2026-01-22 16:01 ` Lorenzo Stoakes
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