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    SubjectRe: [PATCH 0/3] extend get/setrlimit to support setting rlimits external to a process (v6)
    Sign, marcin just pointed out that I'm an idiot (thanks :) ).  I posted a
    version of this patch that was incorrect. Heres the right one, with the all the
    fixes he requested

    Neil

    Summary:

    Its been requested often that we have the ability to read and modify process
    rlimit values from contexts external to the owning process. Ideally this allows
    sysadmins to adjust rlimits on long running processes wihout the need to stop
    and restart those processes, which incurs undesireable downtime. This patch
    enables that functionality, It does so in two places. First it enables process
    limit setting by writing to the /proc/pid/limits file a string in the format:
    <limit> <current limit> <max limit> > /proc/<pid>/limits
    where limit is one of
    [as,core,cpu,data,fsize,locks,memlock,msgqueue,nice,nofile,nproc,rss,rtprio,rttime]

    Secondly it allows for programatic setting of these limits via 2 new syscalls,
    getprlimit, and setprlimit, which act in an identical fashion to getrlimit and
    setrlimit respectively, except that they except a process id as an extra
    argument, to specify the process id of the rlimit values that you wish to
    read/write

    Signed-off-by: Neil Horman <nhorman@tuxdriver.com>





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