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bh=pO0ibnNrDLjDn1P7EsCwSJbYkhZUZwInicnNbMXQlaA=; b=G5RFNrKIIg4YMKqJSR5q+GoolcDVniQJkcfQfO5lY+zXDTuX3TMzzszbviIxECTeJrsnxI kyv1MEY32BkpmXOy1feZFiNtVHBv/rB20sPw/4ng/16nkLL09zvjJug0dVzdVSFkmCzfmw LBSkpaqQ4SkIRVIjFiPaEBfaQLei+d0= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-545-WXa44SQ5OOuHOxandjBvYw-1; Thu, 15 Oct 2020 04:37:12 -0400 X-MC-Unique: WXa44SQ5OOuHOxandjBvYw-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 54230425D5; Thu, 15 Oct 2020 08:37:11 +0000 (UTC) Received: from [10.36.114.207] (ovpn-114-207.ams2.redhat.com [10.36.114.207]) by smtp.corp.redhat.com (Postfix) with ESMTP id 57F2F6EF71; Thu, 15 Oct 2020 08:37:06 +0000 (UTC) Subject: Re: [PATCH v1 06/29] virtio-mem: generalize virtio_mem_owned_mb() To: Wei Yang References: <20201012125323.17509-1-david@redhat.com> <20201012125323.17509-7-david@redhat.com> <20201015083234.GF86495@L-31X9LVDL-1304.local> From: David Hildenbrand Autocrypt: addr=david@redhat.com; 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Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: <20201015083234.GF86495@L-31X9LVDL-1304.local> Content-Language: en-US X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Cc: Pankaj Gupta , "Michael S . Tsirkin" , linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, linux-mm@kvack.org, Andrew Morton X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" On 15.10.20 10:32, Wei Yang wrote: > On Mon, Oct 12, 2020 at 02:53:00PM +0200, David Hildenbrand wrote: >> Avoid using memory block ids. Rename it to virtio_mem_contains_range(). >> >> Cc: "Michael S. Tsirkin" >> Cc: Jason Wang >> Cc: Pankaj Gupta >> Signed-off-by: David Hildenbrand >> --- >> drivers/virtio/virtio_mem.c | 9 +++++---- >> 1 file changed, 5 insertions(+), 4 deletions(-) >> >> diff --git a/drivers/virtio/virtio_mem.c b/drivers/virtio/virtio_mem.c >> index 6bbd1cfd10d3..821143db14fe 100644 >> --- a/drivers/virtio/virtio_mem.c >> +++ b/drivers/virtio/virtio_mem.c >> @@ -500,12 +500,13 @@ static bool virtio_mem_overlaps_range(struct virtio_mem *vm, >> } >> >> /* >> - * Test if a virtio-mem device owns a memory block. Can be called from >> + * Test if a virtio-mem device contains a given range. Can be called from >> * (notifier) callbacks lockless. >> */ >> -static bool virtio_mem_owned_mb(struct virtio_mem *vm, unsigned long mb_id) >> +static bool virtio_mem_contains_range(struct virtio_mem *vm, uint64_t start, >> + uint64_t size) >> { >> - return mb_id >= vm->first_mb_id && mb_id <= vm->last_mb_id; >> + return start >= vm->addr && start + size <= vm->addr + vm->region_size; > > Do we have some reason to do this change? Big Block Mode :) -- Thanks, David / dhildenb _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization