From: "Kirill A. Shutemov" <kirill@shutemov.name>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Will Deacon <will.deacon@arm.com>,
hpa@zytor.com, luto@amacapital.net, dave.hansen@linux.intel.com,
mingo@elte.hu, minchan@kernel.org, tglx@linutronix.de,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: LTP regressions due to 6dc296e7df4c ("mm: make sure all file VMAs have ->vm_ops set")
Date: Thu, 17 Sep 2015 18:37:34 +0300 [thread overview]
Message-ID: <20150917153733.GA31823@node.dhcp.inet.fi> (raw)
In-Reply-To: <20150916142818.d0e5c01f0e91c91f9959ad84@linux-foundation.org>
On Wed, Sep 16, 2015 at 02:28:18PM -0700, Andrew Morton wrote:
> On Tue, 15 Sep 2015 16:42:16 +0300 "Kirill A. Shutemov" <kirill@shutemov.name> wrote:
>
> > I would rather like to see consolidated fault path between file and anon
> > with ->vm_ops set for both. So vma_is_anonymous() will be trivial
> > vma->vm_ops == anon_vm_ops.
>
> People are noticing: https://bugzilla.kernel.org/show_bug.cgi?id=104691
>
> How about I send Linus a revert of 6dc296e7df4c while we work out what
> to do?
I think it's the best step for now. Although, I'm not sure when I will get
time on reworking fault path :-/
--
Kirill A. Shutemov
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WARNING: multiple messages have this Message-ID (diff)
From: "Kirill A. Shutemov" <kirill@shutemov.name>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Will Deacon <will.deacon@arm.com>,
hpa@zytor.com, luto@amacapital.net, dave.hansen@linux.intel.com,
mingo@elte.hu, minchan@kernel.org, tglx@linutronix.de,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: LTP regressions due to 6dc296e7df4c ("mm: make sure all file VMAs have ->vm_ops set")
Date: Thu, 17 Sep 2015 18:37:34 +0300 [thread overview]
Message-ID: <20150917153733.GA31823@node.dhcp.inet.fi> (raw)
In-Reply-To: <20150916142818.d0e5c01f0e91c91f9959ad84@linux-foundation.org>
On Wed, Sep 16, 2015 at 02:28:18PM -0700, Andrew Morton wrote:
> On Tue, 15 Sep 2015 16:42:16 +0300 "Kirill A. Shutemov" <kirill@shutemov.name> wrote:
>
> > I would rather like to see consolidated fault path between file and anon
> > with ->vm_ops set for both. So vma_is_anonymous() will be trivial
> > vma->vm_ops == anon_vm_ops.
>
> People are noticing: https://bugzilla.kernel.org/show_bug.cgi?id=104691
>
> How about I send Linus a revert of 6dc296e7df4c while we work out what
> to do?
I think it's the best step for now. Although, I'm not sure when I will get
time on reworking fault path :-/
--
Kirill A. Shutemov
next prev parent reply other threads:[~2015-09-17 15:37 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-14 10:53 LTP regressions due to 6dc296e7df4c ("mm: make sure all file VMAs have ->vm_ops set") Will Deacon
2015-09-14 10:53 ` Will Deacon
2015-09-14 11:57 ` Kirill A. Shutemov
2015-09-14 11:57 ` Kirill A. Shutemov
2015-09-14 13:22 ` Will Deacon
2015-09-14 13:22 ` Will Deacon
2015-09-14 17:05 ` Oleg Nesterov
2015-09-14 17:05 ` Oleg Nesterov
2015-09-14 17:46 ` Oleg Nesterov
2015-09-14 17:46 ` Oleg Nesterov
2015-09-14 18:20 ` Kirill A. Shutemov
2015-09-14 18:20 ` Kirill A. Shutemov
2015-09-15 12:12 ` Oleg Nesterov
2015-09-15 12:12 ` Oleg Nesterov
2015-09-15 13:42 ` Kirill A. Shutemov
2015-09-15 13:42 ` Kirill A. Shutemov
2015-09-15 15:13 ` Oleg Nesterov
2015-09-15 15:13 ` Oleg Nesterov
2015-09-16 21:28 ` Andrew Morton
2015-09-16 21:28 ` Andrew Morton
2015-09-17 15:37 ` Kirill A. Shutemov [this message]
2015-09-17 15:37 ` Kirill A. Shutemov
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