From: Andrew Morton <akpm@linux-foundation.org>
To: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Dmitry Vyukov <dvyukov@google.com>,
Doug Gilbert <dgilbert@interlog.com>,
David Rientjes <rientjes@google.com>,
Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Shiraz Hashim <shashim@codeaurora.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>,
Hugh Dickins <hughd@google.com>,
Sasha Levin <sasha.levin@oracle.com>,
syzkaller <syzkaller@googlegroups.com>,
Kostya Serebryany <kcc@google.com>,
Alexander Potapenko <glider@google.com>,
linux-scsi@vger.kernel.org
Subject: Re: mm: VM_BUG_ON_PAGE(PageTail(page)) in mbind
Date: Tue, 26 Jan 2016 12:49:16 -0800 [thread overview]
Message-ID: <20160126124916.1f4ed291a6e4bcf19b74b7f7@linux-foundation.org> (raw)
In-Reply-To: <20160126202829.GA21250@node.shutemov.name>
On Tue, 26 Jan 2016 22:28:29 +0200 "Kirill A. Shutemov" <kirill@shutemov.name> wrote:
> Let's mark the VMA as VM_IO to indicate to mm core that the VMA is
> migratable.
>
> ...
>
> --- a/drivers/scsi/sg.c
> +++ b/drivers/scsi/sg.c
> @@ -1261,7 +1261,7 @@ sg_mmap(struct file *filp, struct vm_area_struct *vma)
> }
>
> sfp->mmap_called = 1;
> - vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
> + vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP;
> vma->vm_private_data = sfp;
> vma->vm_ops = &sg_mmap_vm_ops;
> return 0;
I'll put cc:stable on this - I don't think we recently did anything to make
this happen?
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next prev parent reply other threads:[~2016-01-26 20:49 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-26 12:52 mm: VM_BUG_ON_PAGE(PageTail(page)) in mbind Dmitry Vyukov
2016-01-26 20:28 ` Kirill A. Shutemov
2016-01-26 20:48 ` Andrew Morton
2016-01-26 21:07 ` Kirill A. Shutemov
2016-01-26 20:49 ` Andrew Morton [this message]
2016-01-26 21:05 ` Kirill A. Shutemov
2016-01-26 21:37 ` Vlastimil Babka
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