From: Peter Xu <peterx@redhat.com>
To: Wei Wang <wei.w.wang@intel.com>
Cc: qemu-devel@nongnu.org, virtio-dev@lists.oasis-open.org,
mst@redhat.com, quintela@redhat.com, dgilbert@redhat.com,
pbonzini@redhat.com, liliang.opensource@gmail.com,
nilal@redhat.com, riel@redhat.com
Subject: Re: [Qemu-devel] [PATCH v10 3/7] migration: use bitmap_mutex in migration_bitmap_clear_dirty
Date: Mon, 3 Dec 2018 13:08:23 +0800 [thread overview]
Message-ID: <20181203050823.GA27620@xz-x1> (raw)
In-Reply-To: <1543803511-34793-4-git-send-email-wei.w.wang@intel.com>
On Mon, Dec 03, 2018 at 10:18:27AM +0800, Wei Wang wrote:
> The bitmap mutex is used to synchronize threads to update the dirty
> bitmap and the migration_dirty_pages counter. For example, the free
> page optimization clears bits of free pages from the bitmap in an
> iothread context. This patch makes migration_bitmap_clear_dirty update
> the bitmap and counter under the mutex.
>
> Signed-off-by: Wei Wang <wei.w.wang@intel.com>
> CC: Dr. David Alan Gilbert <dgilbert@redhat.com>
> CC: Juan Quintela <quintela@redhat.com>
> CC: Michael S. Tsirkin <mst@redhat.com>
> CC: Peter Xu <peterx@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
--
Peter Xu
next prev parent reply other threads:[~2018-12-03 5:08 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-03 2:18 [Qemu-devel] [PATCH v10 0/7] virtio-balloon: free page hint support Wei Wang
2018-12-03 2:18 ` [Qemu-devel] [PATCH v10 1/7] bitmap: fix bitmap_count_one Wei Wang
2018-12-03 2:18 ` [Qemu-devel] [PATCH v10 2/7] bitmap: bitmap_count_one_with_offset Wei Wang
2018-12-03 2:18 ` [Qemu-devel] [PATCH v10 3/7] migration: use bitmap_mutex in migration_bitmap_clear_dirty Wei Wang
2018-12-03 5:08 ` Peter Xu [this message]
2018-12-03 2:18 ` [Qemu-devel] [PATCH v10 4/7] migration: API to clear bits of guest free pages from the dirty bitmap Wei Wang
2018-12-03 5:10 ` Peter Xu
2018-12-03 8:07 ` Wei Wang
2018-12-03 2:18 ` [Qemu-devel] [PATCH v10 5/7] migration/ram.c: add a notifier chain for precopy Wei Wang
2018-12-03 5:20 ` Peter Xu
2018-12-03 8:10 ` Wei Wang
2018-12-03 2:18 ` [Qemu-devel] [PATCH v10 6/7] migration/ram.c: add a function to disable the bulk stage Wei Wang
2018-12-03 5:31 ` Peter Xu
2018-12-03 8:20 ` Wei Wang
2018-12-03 8:24 ` [Qemu-devel] [virtio-dev] " Wei Wang
2018-12-03 2:18 ` [Qemu-devel] [PATCH v10 7/7] virtio-balloon: VIRTIO_BALLOON_F_FREE_PAGE_HINT Wei Wang
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