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Re: [PATCH v2 1/2] pid: Replace pid bitmap implementation with IDR API

From Oleg Nesterov <oleg@redhat.com>
Newsgroups linux.kernel
Subject Re: [PATCH v2 1/2] pid: Replace pid bitmap implementation with IDR API
Date 2017-09-27 17:20 +0200
Message-ID <uumhY-4St-21@gated-at.bofh.it> (permalink)
References <uucLD-6o3-3@gated-at.bofh.it> <uucLD-6o3-1@gated-at.bofh.it> <uukpQ-3b4-27@gated-at.bofh.it> <uulcf-44V-41@gated-at.bofh.it> <uum8k-4P4-71@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 09/27, Gargi Sharma wrote:
>
> >
> > And make this patch correct ;)
> >
> > because currently it is wrong, zap_pid_ns_processes() won't kill the pid
> > returned by the first idr_get_next().
> Yes, I missed this. I can simply remove the idr_get_next() before the
> idr_for_each_continue and that will take care of it.

Yes, and also remove the while(pid) loop as Rik suggests, just do

	read_lock(&tasklist_lock);
	nr = 2;
	idr_for_each_entry_continue(..., nr) {
		kill pid_task()
	}
	read_unlock(&tasklist_lock);

Oleg.

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Thread

[PATCH v2 0/2] Replace PID bitmap allocation with IDR API Gargi Sharma <gs051095@gmail.com> - 2017-09-27 07:10 +0200
  [PATCH v2 1/2] pid: Replace pid bitmap implementation with IDR API Gargi Sharma <gs051095@gmail.com> - 2017-09-27 07:10 +0200
    Re: [PATCH v2 1/2] pid: Replace pid bitmap implementation with IDR  API Rik van Riel <riel@surriel.com> - 2017-09-27 15:20 +0200
      Re: [PATCH v2 1/2] pid: Replace pid bitmap implementation with IDR  API Oleg Nesterov <oleg@redhat.com> - 2017-09-27 16:10 +0200
        Re: [PATCH v2 1/2] pid: Replace pid bitmap implementation with IDR API Gargi Sharma <gs051095@gmail.com> - 2017-09-27 17:10 +0200
          Re: [PATCH v2 1/2] pid: Replace pid bitmap implementation with IDR  API Oleg Nesterov <oleg@redhat.com> - 2017-09-27 17:20 +0200
      Re: [PATCH v2 1/2] pid: Replace pid bitmap implementation with IDR API Gargi Sharma <gs051095@gmail.com> - 2017-09-27 17:10 +0200
    Re: [PATCH v2 1/2] pid: Replace pid bitmap implementation with IDR  API Oleg Nesterov <oleg@redhat.com> - 2017-09-27 17:10 +0200
    Re: [PATCH v2 1/2] pid: Replace pid bitmap implementation with IDR  API Christoph Hellwig <hch@infradead.org> - 2017-10-01 11:20 +0200
      Re: [PATCH v2 1/2] pid: Replace pid bitmap implementation with IDR API Gargi Sharma <gs051095@gmail.com> - 2017-10-01 12:40 +0200
        Re: [PATCH v2 1/2] pid: Replace pid bitmap implementation with IDR  API Rik van Riel <riel@surriel.com> - 2017-10-02 15:20 +0200
      Re: [PATCH v2 1/2] pid: Replace pid bitmap implementation with IDR  API Rik van Riel <riel@surriel.com> - 2017-10-02 15:10 +0200
  [PATCH v2 2/2] pid: Remove pidhash Gargi Sharma <gs051095@gmail.com> - 2017-09-27 07:10 +0200
    Re: [PATCH v2 2/2] pid: Remove pidhash Oleg Nesterov <oleg@redhat.com> - 2017-09-27 17:50 +0200
      Re: [PATCH v2 2/2] pid: Remove pidhash Oleg Nesterov <oleg@redhat.com> - 2017-09-27 18:30 +0200
        Re: [PATCH v2 2/2] pid: Remove pidhash Gargi Sharma <gs051095@gmail.com> - 2017-09-30 17:50 +0200
      Re: [PATCH v2 2/2] pid: Remove pidhash Rik van Riel <riel@surriel.com> - 2017-10-02 22:50 +0200
        Re: [PATCH v2 2/2] pid: Remove pidhash Gargi Sharma <gs051095@gmail.com> - 2017-10-02 22:50 +0200
      Re: [PATCH v2 2/2] pid: Remove pidhash Oleg Nesterov <oleg@redhat.com> - 2017-10-02 22:50 +0200
      Re: [PATCH v2 2/2] pid: Remove pidhash Rik van Riel <riel@surriel.com> - 2017-10-02 22:50 +0200
  Re: [PATCH v2 0/2] Replace PID bitmap allocation with IDR API ebiederm@xmission.com (Eric W. Biederman) - 2017-09-27 19:20 +0200
    Re: [PATCH v2 0/2] Replace PID bitmap allocation with IDR API Rik van Riel <riel@surriel.com> - 2017-09-28 21:50 +0200
      Re: [PATCH v2 0/2] Replace PID bitmap allocation with IDR API Gargi Sharma <gs051095@gmail.com> - 2017-09-28 22:10 +0200
        Re: [PATCH v2 0/2] Replace PID bitmap allocation with IDR API Rik van Riel <riel@surriel.com> - 2017-09-29 02:40 +0200

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