Re: [Qemu-devel] [PATCH for-2.5] block-migration: limit the memory usage

[Stefan Hajnoczi]

On Mon, Nov 23, 2015 at 05:31:33PM +0100, Juan Quintela wrote:
> Wen Congyang <address@hidden> wrote:
> > If we set migration speed in a very large value, block-migration will try 
> > to read
> > all data to the memory. Because
> >     (block_mig_state.submitted + block_mig_state.read_done) * BLOCK_SIZE
> > will be overflow, and it will be always less than rate limit.
> >
> > There is no need to read too many data into memory when the rate limit is 
> > very large.
> > So limit the memory usage can fix the overflow problem.
> >
> > Signed-off-by: Wen Congyang <address@hidden>
> 
> Reviewed-by: Juan Quintela <address@hidden>
> 
> If no block layer maintainer objects, I will apply this to my tree.
> 
> Later, Juan.

Reviewed-by: Stefan Hajnoczi <address@hidden>

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