Re: [PATCH 06/17] powerpc/qspinlock: theft prevention to control latency

2022-11-10 Thread Nicholas Piggin
On Thu Nov 10, 2022 at 10:40 AM AEST, Jordan Niethe wrote: > On Thu, 2022-07-28 at 16:31 +1000, Nicholas Piggin wrote: > [resend as utf-8, not utf-7] > > Give the queue head the ability to stop stealers. After a number of > > spins without sucessfully acquiring the lock, the queue head employs > >

Re: [PATCH 06/17] powerpc/qspinlock: theft prevention to control latency

2022-11-09 Thread Jordan Niethe
On Thu, 2022-07-28 at 16:31 +1000, Nicholas Piggin wrote: [resend as utf-8, not utf-7] > Give the queue head the ability to stop stealers. After a number of > spins without sucessfully acquiring the lock, the queue head employs > this, which will assure it is the next owner. > --- > arch/powerpc/i

Re: [PATCH 06/17] powerpc/qspinlock: theft prevention to control latency

2022-08-09 Thread Jordan Niethe
On Thu, 2022-07-28 at 16:31 +1000, Nicholas Piggin wrote: > Give the queue head the ability to stop stealers. After a number of > spins without sucessfully acquiring the lock, the queue head employs > this, which will assure it is the next owner. > --- > arch/powerpc/include/asm/qspinlock_types.h