[CRIU] [RFC 00/21] Fifo checkpoint and restore

[Cyrill Gorcunov]

Hi guys,

here is prelim. series for fifo checkpoint and restore, please
take a look. To be able to merge fifo code I needed to clean
up current pipes code a bit and also enhance zdtm with
task waiters, so the patches

 - make: LIBS should not be in prerequisites
 - zdtm: Add task_waiter_ helpers v2

were sent out before for review sake, but I include
them here again since without them the series is incomplete.

Also here are two patches

 - [PATCH 10/21] Update to 239e1ff597417acfcc8eade88f86e5a21800bb85
 - [PATCH 11/21] Update to 239e1ff597417acfcc8eade88f86e5a21800bb85

which I missed to fold into

 - [PATCH 01/21] pipes: Split pipes data dumping into a separate

I'll do that once overall idea get accepted.

I'm mostly interested in comments on patches

 - [PATCH 19/21] pipes: Dump and show fifo files
 - [PATCH 20/21] pipes: Add restore for fifo

also I suspect code for receiving fifos might be redundant,
but I just wanted to share series earlier, don't swear at me
much ;)

	Cyrill