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From: Cyrill Gorcunov <gorcunov@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
	Linux MM <linux-mm@kvack.org>,
	Quentin Casasnovas <quentin.casasnovas@oracle.com>,
	Vegard Nossum <vegard.nossum@oracle.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linuxfoundation.org>,
	Willy Tarreau <w@1wt.eu>, Andy Lutomirski <luto@amacapital.net>,
	Kees Cook <keescook@google.com>,
	Vladimir Davydov <vdavydov@virtuozzo.com>,
	Konstantin Khlebnikov <koct9i@gmail.com>,
	Pavel Emelyanov <xemul@virtuozzo.com>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: Re: [PATCH RFC] mm: Rework virtual memory accounting
Date: Tue, 29 Dec 2015 12:48:44 +0300	[thread overview]
Message-ID: <20151229094844.GN2194@uranus> (raw)
In-Reply-To: <20151228151002.0a8e44199d31f7a4fa7fc414@linux-foundation.org>

On Mon, Dec 28, 2015 at 03:10:02PM -0800, Andrew Morton wrote:
> On Tue, 29 Dec 2015 00:10:15 +0300 Cyrill Gorcunov <gorcunov@gmail.com> wrote:
...
> 
> This clashes with
> mm-mmapc-remove-redundant-local-variables-for-may_expand_vm.patch,
> below.  I resolved it thusly:
> 
> bool may_expand_vm(struct mm_struct *mm, vm_flags_t flags, unsigned long npages)
> {
> 	if (mm->total_vm + npages > rlimit(RLIMIT_AS) >> PAGE_SHIFT)
> 		return false;
> 
> 	if ((flags & (VM_WRITE | VM_SHARED | (VM_STACK_FLAGS &
> 				(VM_GROWSUP | VM_GROWSDOWN)))) == VM_WRITE)
> 		return mm->data_vm + npages <= rlimit(RLIMIT_DATA);
> 
> 	return true;
> }

Thanks, Andrew!

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WARNING: multiple messages have this Message-ID (diff)
From: Cyrill Gorcunov <gorcunov@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
	Linux MM <linux-mm@kvack.org>,
	Quentin Casasnovas <quentin.casasnovas@oracle.com>,
	Vegard Nossum <vegard.nossum@oracle.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linuxfoundation.org>,
	Willy Tarreau <w@1wt.eu>, Andy Lutomirski <luto@amacapital.net>,
	Kees Cook <keescook@google.com>,
	Vladimir Davydov <vdavydov@virtuozzo.com>,
	Konstantin Khlebnikov <koct9i@gmail.com>,
	Pavel Emelyanov <xemul@virtuozzo.com>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: Re: [PATCH RFC] mm: Rework virtual memory accounting
Date: Tue, 29 Dec 2015 12:48:44 +0300	[thread overview]
Message-ID: <20151229094844.GN2194@uranus> (raw)
In-Reply-To: <20151228151002.0a8e44199d31f7a4fa7fc414@linux-foundation.org>

On Mon, Dec 28, 2015 at 03:10:02PM -0800, Andrew Morton wrote:
> On Tue, 29 Dec 2015 00:10:15 +0300 Cyrill Gorcunov <gorcunov@gmail.com> wrote:
...
> 
> This clashes with
> mm-mmapc-remove-redundant-local-variables-for-may_expand_vm.patch,
> below.  I resolved it thusly:
> 
> bool may_expand_vm(struct mm_struct *mm, vm_flags_t flags, unsigned long npages)
> {
> 	if (mm->total_vm + npages > rlimit(RLIMIT_AS) >> PAGE_SHIFT)
> 		return false;
> 
> 	if ((flags & (VM_WRITE | VM_SHARED | (VM_STACK_FLAGS &
> 				(VM_GROWSUP | VM_GROWSDOWN)))) == VM_WRITE)
> 		return mm->data_vm + npages <= rlimit(RLIMIT_DATA);
> 
> 	return true;
> }

Thanks, Andrew!

  reply	other threads:[~2015-12-29  9:48 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-28 21:10 [PATCH RFC] mm: Rework virtual memory accounting Cyrill Gorcunov
2015-12-28 21:10 ` Cyrill Gorcunov
2015-12-28 22:22 ` Linus Torvalds
2015-12-28 22:22   ` Linus Torvalds
2015-12-29  9:43   ` Cyrill Gorcunov
2015-12-29  9:43     ` Cyrill Gorcunov
2016-01-22 19:42   ` Christian Borntraeger
2016-01-22 19:42     ` Christian Borntraeger
2016-01-22 20:20     ` Cyrill Gorcunov
2016-01-22 20:20       ` Cyrill Gorcunov
2016-01-22 20:21     ` Andrew Morton
2016-01-22 20:21       ` Andrew Morton
2016-01-22 20:30     ` Linus Torvalds
2016-01-22 20:30       ` Linus Torvalds
2015-12-28 23:10 ` Andrew Morton
2015-12-28 23:10   ` Andrew Morton
2015-12-29  9:48   ` Cyrill Gorcunov [this message]
2015-12-29  9:48     ` Cyrill Gorcunov
  -- strict thread matches above, loose matches on Subject: below --
2015-12-14  8:12 [RFC 1/2] [RFC] mm: Account anon mappings as RLIMIT_DATA Konstantin Khlebnikov
2015-12-14  8:12 ` [PATCH RFC] mm: rework virtual memory accounting Konstantin Khlebnikov
2015-12-14  8:12   ` Konstantin Khlebnikov
2015-12-14  9:08   ` Cyrill Gorcunov
2015-12-14  9:08     ` Cyrill Gorcunov

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