From: Jerome Glisse <jglisse@redhat.com>
To: linux-kernel@vger.kernel.org, linux-mm@kvack.org
Cc: "Linus Torvalds" <torvalds@linux-foundation.org>,
"Bernhard Held" <berny156@gmx.de>,
"Adam Borowski" <kilobyte@angband.pl>,
"Andrea Arcangeli" <aarcange@redhat.com>,
"Radim Krčmář" <rkrcmar@redhat.com>,
"Wanpeng Li" <kernellwp@gmail.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Takashi Iwai" <tiwai@suse.de>,
"Nadav Amit" <nadav.amit@gmail.com>,
"Mike Galbraith" <efault@gmx.de>,
"Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>,
axie <axie@amd.com>, "Andrew Morton" <akpm@linux-foundation.org>
Subject: Re: [RFC PATCH] mm/rmap: do not call mmu_notifier_invalidate_page() v3
Date: Tue, 29 Aug 2017 15:06:45 -0400 [thread overview]
Message-ID: <20170829190644.GC7546@redhat.com> (raw)
In-Reply-To: <20170829190526.8767-1-jglisse@redhat.com>
On Tue, Aug 29, 2017 at 03:05:26PM -0400, Jerome Glisse wrote:
> Some MMU notifier need to be able to sleep during callback. This was
> broken by c7ab0d2fdc84 ("mm: convert try_to_unmap_one() to use
> page_vma_mapped_walk()").
>
> This patch restore the sleep ability and properly capture the range of
> address that needs to be invalidated.
>
> Relevent threads:
> https://lkml.kernel.org/r/20170809204333.27485-1-jglisse@redhat.com
> https://lkml.kernel.org/r/20170804134928.l4klfcnqatni7vsc@black.fi.intel.com
> https://marc.info/?l=kvm&m=150327081325160&w=2
Note that i haven't yet tested this patch i just wanted to put it
out there. I am gonna run some test over new few days an report.
Anyone else is welcome to test it too.
Cheers,
Jerome
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next prev parent reply other threads:[~2017-08-29 19:06 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-29 19:05 [RFC PATCH] mm/rmap: do not call mmu_notifier_invalidate_page() v3 Jérôme Glisse
2017-08-29 19:06 ` Jerome Glisse [this message]
2017-08-29 19:09 ` Linus Torvalds
2017-08-29 19:14 ` Jerome Glisse
2017-08-29 19:16 ` Linus Torvalds
2017-08-29 19:58 ` Linus Torvalds
2017-08-29 20:14 ` Jerome Glisse
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