[CRIU] [rfc 4/4] epoll: Squash epolls into one image

[Cyrill Gorcunov]

There is a longstanding task to enlarge image files
instead of using a set of small image files. Usually
this can be done by introducine "repeated" fields into
image objects.

Thus here we dump/restore epoll files with new repeated
eventpoll_file_entry::eventpoll_tfd_entry field.

Note, old format is still supported but warning yielded.
I suppose we deprecate old format after a few releases.

Signed-off-by: Cyrill Gorcunov <gorcunov at openvz.org>
---
 eventpoll.c | 67 +++++++++++++++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 59 insertions(+), 8 deletions(-)

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