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Re: [PATCH 1/1] migration/multifd: solve zero page causing multiple page
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From: |
Fabiano Rosas |
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Subject: |
Re: [PATCH 1/1] migration/multifd: solve zero page causing multiple page faults |
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Date: |
Tue, 02 Apr 2024 09:57:49 -0300 |
Yuan Liu <yuan1.liu@intel.com> writes:
> Implemented recvbitmap tracking of received pages in multifd.
>
> If the zero page appears for the first time in the recvbitmap, this
> page is not checked and set.
>
> If the zero page has already appeared in the recvbitmap, there is no
> need to check the data but directly set the data to 0, because it is
> unlikely that the zero page will be migrated multiple times.
>
> Signed-off-by: Yuan Liu <yuan1.liu@intel.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>