From: Peter Zijlstra <peterz@infradead.org>
To: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
paulmck@linux.vnet.ibm.com, akpm@linux-foundation.org,
kirill@shutemov.name, ak@linux.intel.com, mhocko@kernel.org,
dave@stgolabs.net, jack@suse.cz,
Matthew Wilcox <willy@infradead.org>,
benh@kernel.crashing.org, mpe@ellerman.id.au, paulus@samba.org,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>,
hpa@zytor.com, Will Deacon <will.deacon@arm.com>,
Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
haren@linux.vnet.ibm.com, khandual@linux.vnet.ibm.com,
npiggin@gmail.com, bsingharora@gmail.com,
Tim Chen <tim.c.chen@linux.intel.com>,
linuxppc-dev@lists.ozlabs.org, x86@kernel.org
Subject: Re: [PATCH v3 04/20] mm: VMA sequence count
Date: Mon, 25 Sep 2017 14:22:19 +0200 [thread overview]
Message-ID: <20170925122219.ia6cmz2tng65fhoe@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <4e6c4e45-bbd6-3fd8-ee96-216892c797b3@linux.vnet.ibm.com>
On Fri, Sep 15, 2017 at 02:38:51PM +0200, Laurent Dufour wrote:
> > /*
> > * well... answering your question - it seems raw versions of seqcount
> > * functions don't call lockdep's lock_acquire/lock_release...
> > *
> > * but I have never told you that. never.
> > */
>
> Hum... I'm not sure that would be the best way since in other case lockdep
> checks are valid, but if getting rid of locked's warning is required to get
> this series upstream, I'd use raw versions... Please advice...
No sensible other way to shut it up come to mind though. Might be best
to use the raw primitives with a comment explaining why.
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next prev parent reply other threads:[~2017-09-25 12:22 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-08 18:06 [PATCH v3 00/20] Speculative page faults Laurent Dufour
2017-09-08 18:06 ` [PATCH v3 01/20] mm: Dont assume page-table invariance during faults Laurent Dufour
2017-09-08 18:06 ` [PATCH v3 02/20] mm: Prepare for FAULT_FLAG_SPECULATIVE Laurent Dufour
2017-09-08 18:06 ` [PATCH v3 03/20] mm: Introduce pte_spinlock " Laurent Dufour
2017-09-08 18:06 ` [PATCH v3 04/20] mm: VMA sequence count Laurent Dufour
2017-09-13 11:53 ` Sergey Senozhatsky
2017-09-13 16:56 ` Laurent Dufour
2017-09-14 0:31 ` Sergey Senozhatsky
2017-09-14 7:55 ` Laurent Dufour
2017-09-14 8:13 ` Sergey Senozhatsky
2017-09-14 8:58 ` Laurent Dufour
2017-09-14 9:11 ` Sergey Senozhatsky
2017-09-14 9:15 ` Laurent Dufour
2017-09-14 9:40 ` Sergey Senozhatsky
2017-09-15 12:38 ` Laurent Dufour
2017-09-25 12:22 ` Peter Zijlstra [this message]
2017-09-08 18:06 ` [PATCH v3 05/20] mm: Protect VMA modifications using " Laurent Dufour
2017-09-08 18:06 ` [PATCH v3 06/20] mm: RCU free VMAs Laurent Dufour
2017-09-08 18:06 ` [PATCH v3 07/20] mm: Cache some VMA fields in the vm_fault structure Laurent Dufour
2017-09-08 18:06 ` [PATCH v3 08/20] mm: Protect SPF handler against anon_vma changes Laurent Dufour
2017-09-08 18:06 ` [PATCH v3 09/20] mm/migrate: Pass vm_fault pointer to migrate_misplaced_page() Laurent Dufour
2017-09-08 18:06 ` [PATCH v3 10/20] mm: Introduce __lru_cache_add_active_or_unevictable Laurent Dufour
2017-09-08 18:06 ` [PATCH v3 11/20] mm: Introduce __maybe_mkwrite() Laurent Dufour
2017-09-08 18:06 ` [PATCH v3 12/20] mm: Introduce __vm_normal_page() Laurent Dufour
2017-09-08 18:06 ` [PATCH v3 13/20] mm: Introduce __page_add_new_anon_rmap() Laurent Dufour
2017-09-08 18:06 ` [PATCH v3 14/20] mm: Provide speculative fault infrastructure Laurent Dufour
2017-09-08 18:06 ` [PATCH v3 15/20] mm: Try spin lock in speculative path Laurent Dufour
2017-09-08 18:07 ` [PATCH v3 16/20] mm: Adding speculative page fault failure trace events Laurent Dufour
2017-09-08 18:07 ` [PATCH v3 17/20] perf: Add a speculative page fault sw event Laurent Dufour
2017-09-08 18:07 ` [PATCH v3 18/20] perf tools: Add support for the SPF perf event Laurent Dufour
2017-09-08 18:07 ` [PATCH v3 19/20] x86/mm: Add speculative pagefault handling Laurent Dufour
2017-09-08 18:07 ` [PATCH v3 20/20] powerpc/mm: Add speculative page fault Laurent Dufour
2017-09-18 7:15 ` [PATCH v3 00/20] Speculative page faults Laurent Dufour
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