Re: [RFC 0/3] fs,epoll: Add ability to call kcmp to find target files

From	Cyrill Gorcunov <gorcunov@gmail.com>
Newsgroups	linux.kernel
Subject	Re: [RFC 0/3] fs,epoll: Add ability to call kcmp to find target files
Date	2017-02-28 18:20 +0100
Message-ID	<tfTBo-7wT-11@gated-at.bofh.it> (permalink)
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On Tue, Feb 21, 2017 at 11:54:34PM +0300, Cyrill Gorcunov wrote:
> 
> I think it should be ebough (together with sdev and pos). But will
> look more closely tomorrow once I sit implementing criu support :)
> (that's why it is early rfc, to gather comments)

FWIW, yes, it is enough for primary sorting key. Once it matches
the key from other anon block we use kcmp call to find exact
match (kid_epoll_lookup lookups over primary keys generated by
inode/sdev/pos, and then using kcmp we walk over files)

https://github.com/cyrillos/criu/blob/epoll-tgt-3/criu/kcmp-ids.c#L158

	Cyrill

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[RFC 0/3] fs,epoll: Add ability to call kcmp to find target files Cyrill Gorcunov <gorcunov@openvz.org> - 2017-02-21 18:20 +0100
  Re: [RFC 0/3] fs,epoll: Add ability to call kcmp to find target files Jason Baron <jbaron@akamai.com> - 2017-02-21 21:40 +0100
    Re: [RFC 0/3] fs,epoll: Add ability to call kcmp to find target files Cyrill Gorcunov <gorcunov@gmail.com> - 2017-02-21 22:00 +0100
      Re: [RFC 0/3] fs,epoll: Add ability to call kcmp to find target files Cyrill Gorcunov <gorcunov@gmail.com> - 2017-02-28 18:20 +0100

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