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Re: [PATCH] migration: Move bitmap_mutex out of migration_bitmap_clear_d

From: Peter Xu
Subject: Re: [PATCH] migration: Move bitmap_mutex out of migration_bitmap_clear_dirty()
Date: Wed, 7 Jul 2021 12:45:22 -0400

On Wed, Jul 07, 2021 at 12:45:32PM +0000, Wang, Wei W wrote:
> Btw, what would you think if we change mutex to QemuSpin? It will also reduce 
> the overhead, I think.

As I replied at the other place, the bottleneck we encountered is the lock
taking not sleeping, so I'm afraid spinlock will have the same issue. Thanks,

Peter Xu

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