netdev - Re: [PATCH iproute2] ip vrf: Add command name next to pid

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Date:   Fri, 14 Apr 2017 17:07:20 -0600
From:   David Ahern <dsa@...ulusnetworks.com>
To:     Stephen Hemminger <stephen@...workplumber.org>
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH iproute2] ip vrf: Add command name next to pid

On 4/14/17 4:57 PM, Stephen Hemminger wrote:
> Overall, this looks like a good idea.
> 
>> +
>> +int get_comm(char *pid, char *comm, int len)
> 
> 
> Please use more glibc style function signature, like:
> 
> int get_comm(const char *pid, char *comm, size_t len)
> 
> And maybe even
> int get_command_name(pid_t pid, char *comm, size_t len)
> 

I'd pref to keep as char *. No sense converting from string to pid_t to
string. The vrf code is reading a cgroups file; the other potential user
is netns which is also reading pid from a file.