[CRIU] [PATCH 0/2] write pidfile before chdir /, if going daemon

[Ruslan Kuprieiev]

On 31.10.2013 04:54, Ruslan Kuprieiev wrote:
> On 30.10.2013 16:30, Pavel Emelyanov wrote:
>> On 10/30/2013 03:27 AM, Ruslan Kuprieiev wrote:
>>> Now we're unable to use relative pidfile path with -d option, because
>>> criu chdir to /, before writing pidfile. So lets go daemon without
>>> chdiring to /, write pidfile(if needed) and chdir("/"), as well.
>>>
>>> Ruslan Kuprieiev (2):
>>>    service: write pidfile before chdir to /, if going daemon
>>>    page-server: write pidfile before chdir to /, if going daemon
>>>
>>>   cr-service.c | 14 +++++++++++++-
>>>   page-xfer.c  | 19 ++++++++++++++++---
>>>   2 files changed, 29 insertions(+), 4 deletions(-)
>>>
>>
>> I wouldn't introduce such complexity, but made sure, that -D option
>> works properly for daemon and pid file with relative path is put
>> under -D.
> -D with daemon means that daemon shouldn't chdir /, and should stay 
> where -D will point?

I'm not even sure how to solve this. I mean, we're doing chdir right 
after getting -D option, but pidfile path may be relative and than it 
would be a problem. I thought about using realpath(), but, as far as i 
know, it doesn't work for nonexistent files.