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Andrei Vagin 96de90db31 mnt: try to split a mount tree to restore over-mounted mounts 
If a mount overmounts something else, we can try to restore it
separetly and then move it to the right places after restoring
all mounts.

In this patch if we see that a mount is overmounts something,
we create a new directory in the root yard and restore this
mount and its sub-tree in this directory.

https://bugs.openvz.org/browse/OVZ-6778

v2: add more comments
    rename roots_mp into roots_yard_mp
v3: rename functions

Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
2016-12-09 22:42:27 +03:00
contrib Add script to install required packages to compile in Debian 2016-09-26 15:42:43 +03:00
coredump coredump: Rename dir to coredump 2016-06-28 13:04:58 +03:00
crit crit/decode: set default opts['nopl'] to False 2016-05-30 13:47:54 +03:00
criu mnt: try to split a mount tree to restore over-mounted mounts 2016-12-09 22:42:27 +03:00
Documentation criu(8): describe --weak-sysctls 2016-12-05 23:35:15 +03:00
images Add --weak_sysctl CLI option to RPC and lib 2016-12-05 23:34:54 +03:00
include/common headers: Switch to common linkage.h 2016-11-21 23:15:19 +03:00
lib Add --weak_sysctl CLI option to RPC and lib 2016-12-05 23:34:54 +03:00
scripts travis: Run some zdtm-s in RPC mode 2016-11-12 11:06:00 +03:00
test include sys/sysmacros.h for minor/major/makedev funcs 2016-12-09 22:42:27 +03:00
.gitignore make: Add .config file processing (v3) 2016-11-03 20:49:13 +03:00
.mailmap repo: Add mailmap file 2012-03-25 23:31:20 +04:00
.travis.yml travis: enable arm/arm64/ppc builds with clang 2016-12-05 11:49:19 +03:00
COPYING COPYING: fix a typo in a preamble 2016-08-11 16:18:43 +03:00
CREDITS Add the CREDITS file 2012-07-30 13:52:37 +04:00
INSTALL.md build: Add INSTALL.md and update "make help" 2016-05-06 14:38:29 +03:00
Makefile arm: rm -Wa from CFLAGS 2016-11-12 11:04:38 +03:00
Makefile.config make: Add .config file processing (v3) 2016-11-03 20:49:13 +03:00
Makefile.install build/make: return to make from top directory 2016-08-01 18:38:32 +03:00
Makefile.versions criu: Version 2.8 2016-11-14 11:12:41 +03:00
README.md Add ascciinema tour on basic criu features. 2016-06-16 16:37:06 +03:00

README.md

CRIU (Checkpoint and Restore in Userspace)

An utility to checkpoint/restore tasks. Using this tool, you can freeze a running application (or part of it) and checkpoint it to a hard drive as a collection of files. You can then use the files to restore and run the application from the point it was frozen at. The distinctive feature of the CRIU project is that it is mainly implemented in user space.

The project home is at http://criu.org.

Pages worth starting with are:

A video tour on basic CRIU features

CRIU introduction

How to contribute