From: Izik Eidus <ieidus@redhat.com>
To: kvm@vger.kernel.org
Cc: avi@redhat.com
Subject: Re: [PATCH 0/2] remove kvm vmap usage
Date: Mon, 29 Dec 2008 02:06:55 +0200 [thread overview]
Message-ID: <4958149F.10101@redhat.com> (raw)
In-Reply-To: <1230507740-10596-1-git-send-email-ieidus@redhat.com>
Izik Eidus wrote:
> Remove the vmap usage from kvm, this is needed both for ksm and
> get_user_pages != write.
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Ok so for ksm things are now all right, actully i could live without
this vmap as well,
beacuse ksm check the page _count and every call to gva_to_page should
increase it.
anyway before i continue with the kmap removing (again ksm doesnt need
it, only get_user_pages != write)
does we really want to go that way?
even for the get_user_pages case we can live with the write = 0, if
before each kmap_atomic we will call
get_user_pages (write = 1), so the page inside apic_page and time_page
and what so ever would be safe
(when ksm will come to merge that page it will skip it with the page
count check)
next prev parent reply other threads:[~2008-12-29 0:07 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-28 23:42 [PATCH 0/2] remove kvm vmap usage Izik Eidus
2008-12-28 23:42 ` [PATCH 1/2] KVM: introducing kvm_read_guest_virt, kvm_write_guest_virt Izik Eidus
2008-12-28 23:42 ` [PATCH 2/2] KVM: remove the vmap usage Izik Eidus
2008-12-29 0:06 ` Izik Eidus [this message]
2008-12-29 8:36 ` [PATCH 0/2] remove kvm " Avi Kivity
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