Re: [PATCH v2 3/7] powerpc: use task_pid_nr() for TID allocation

On Mon, 2018-05-07 at 19:37 +0200, Frederic Barrat wrote: > > Le 18/04/2018 à 03:08, Alastair D'Silva a écrit : > > From: Alastair D'Silva > > > > The current implementation of TID allocation, using a global IDR, > > may > > result in an errant process starving the system

Re: [PATCH v2 3/7] powerpc: use task_pid_nr() for TID allocation

Le 18/04/2018 à 03:08, Alastair D'Silva a écrit : From: Alastair D'Silva The current implementation of TID allocation, using a global IDR, may result in an errant process starving the system of available TIDs. Instead, use task_pid_nr(), as mentioned by the original

Re: [PATCH v2 3/7] powerpc: use task_pid_nr() for TID allocation

On 25/04/18 07:12, Sukadev Bhattiprolu wrote: Yes. Like with PIDR, was trying to assign TIDR initially to all threads. But since only a subset of threads need/use TIDR, we can assign the value later (when set_thread_tidr() is called). So we should be able to use task_pid_nr() then. OK.

Re: [PATCH v2 3/7] powerpc: use task_pid_nr() for TID allocation

Andrew Donnellan [andrew.donnel...@au1.ibm.com] wrote: > [+ Sukadev, Christophe] > > On 18/04/18 11:08, Alastair D'Silva wrote: > > From: Alastair D'Silva > > > > The current implementation of TID allocation, using a global IDR, may > > result in an errant process starving

[PATCH v2 3/7] powerpc: use task_pid_nr() for TID allocation

From: Alastair D'Silva The current implementation of TID allocation, using a global IDR, may result in an errant process starving the system of available TIDs. Instead, use task_pid_nr(), as mentioned by the original author. The scenario described which prevented it's use