On Thu, Sep 14, 2017 at 01:46:43AM +0300, Alexey Dobriyan wrote: > On Wed, Sep 13, 2017 at 03:21:59PM -0700, Roman Gushchin wrote: > > On Thu, Sep 14, 2017 at 01:15:26AM +0300, Alexey Dobriyan wrote: > > > > To provide an ability to detect if a process is in the state of > > > > being coreduped, we can expose a boolean CoreDumping flag > > > > in /proc/pid/status. > > > > > > Or add "State: C" ? > > > > A program in such state can also sleep and run, so it's not > > a state in terms of process states. > > Well, maybe something will break from seeing unknown process state. > > Regardless, symlink /proc/$PID/coredump pointing to either "0" or "1" > is faster than open+read+parse+close.
Performance doesn't really matter in this case: nobody should check this flag often. An expected usecase is described above: check the flag once before killing the process by timeout. So, it doesn't look deserving a separate entity in procfs.
