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Chengguang Xu authored
Currently on mmap cache policy, we always attach writeback_fid whether mmap type is SHARED or PRIVATE. However, in the use case of kata-container which combines 9p(Guest OS) with overlayfs(Host OS), this behavior will trigger overlayfs' copy-up when excute command inside container. Link: http://lkml.kernel.org/r/20190820100325.10313-1-cgxu519@zoho.com.cnSigned-off-by:
Chengguang Xu <cgxu519@zoho.com.cn> Signed-off-by:
Dominique Martinet <dominique.martinet@cea.fr>
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