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authorWei Wang <wei.w.wang@intel.com>2018-12-11 16:24:49 +0800
committerDr. David Alan Gilbert <dgilbert@redhat.com>2019-03-06 10:49:18 +0000
commit386a907b37a9321bc5d699bc37104d6ffba1b34d (patch)
treeb6e035c4fbb1140daba18fa2ad4a2c8316ce246e /disas/alpha.c
parent94960256ae0bc346de49e2ef3808778e8468caf5 (diff)
migration: use bitmap_mutex in migration_bitmap_clear_dirty
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> Message-Id: <1544516693-5395-4-git-send-email-wei.w.wang@intel.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'disas/alpha.c')
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