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| Started by | Michael Ellerman <patch-notifications@ellerman.id.au> |
|---|---|
| First post | 2017-06-29 14:30 +0200 |
| Last post | 2017-06-30 15:00 +0200 |
| Articles | 4 — 3 participants |
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Re: [1/3] cpuidle: powerpc: cpuidle set polling before enabling irqs Michael Ellerman <patch-notifications@ellerman.id.au> - 2017-06-29 14:30 +0200
Re: [1/3] cpuidle: powerpc: cpuidle set polling before enabling irqs "Rafael J. Wysocki" <rafael@kernel.org> - 2017-06-29 22:40 +0200
Re: [1/3] cpuidle: powerpc: cpuidle set polling before enabling irqs Michael Ellerman <mpe@ellerman.id.au> - 2017-06-30 05:50 +0200
Re: [1/3] cpuidle: powerpc: cpuidle set polling before enabling irqs "Rafael J. Wysocki" <rafael@kernel.org> - 2017-06-30 15:00 +0200
| From | Michael Ellerman <patch-notifications@ellerman.id.au> |
|---|---|
| Date | 2017-06-29 14:30 +0200 |
| Subject | Re: [1/3] cpuidle: powerpc: cpuidle set polling before enabling irqs |
| Message-ID | <tXGK7-7yG-25@gated-at.bofh.it> |
On Wed, 2017-06-14 at 13:02:39 UTC, Nicholas Piggin wrote: > local_irq_enable can cause interrupts to be taken which could > take significant amount of processing time. The idle process > should set its polling flag before this, so another process that > wakes it during this time will not have to send an IPI. > > Expand the TIF_POLLING_NRFLAG coverage to as large as possible. > > Reviewed-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com> > Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Series applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/3fc5ee927ff4ffed6aa2fcd44d2fbf cheers
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| From | "Rafael J. Wysocki" <rafael@kernel.org> |
|---|---|
| Date | 2017-06-29 22:40 +0200 |
| Message-ID | <tXOoi-40D-17@gated-at.bofh.it> |
| In reply to | #1677693 |
On Thu, Jun 29, 2017 at 2:21 PM, Michael Ellerman <patch-notifications@ellerman.id.au> wrote: > On Wed, 2017-06-14 at 13:02:39 UTC, Nicholas Piggin wrote: >> local_irq_enable can cause interrupts to be taken which could >> take significant amount of processing time. The idle process >> should set its polling flag before this, so another process that >> wakes it during this time will not have to send an IPI. >> >> Expand the TIF_POLLING_NRFLAG coverage to as large as possible. >> >> Reviewed-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com> >> Signed-off-by: Nicholas Piggin <npiggin@gmail.com> > > Series applied to powerpc next, thanks. > > https://git.kernel.org/powerpc/c/3fc5ee927ff4ffed6aa2fcd44d2fbf OK I've applied it too, so I guess I should drop it? Thanks, Rafael
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| From | Michael Ellerman <mpe@ellerman.id.au> |
|---|---|
| Date | 2017-06-30 05:50 +0200 |
| Message-ID | <tXV6p-8tl-11@gated-at.bofh.it> |
| In reply to | #1678181 |
"Rafael J. Wysocki" <rafael@kernel.org> writes: > On Thu, Jun 29, 2017 at 2:21 PM, Michael Ellerman > <patch-notifications@ellerman.id.au> wrote: >> On Wed, 2017-06-14 at 13:02:39 UTC, Nicholas Piggin wrote: >>> local_irq_enable can cause interrupts to be taken which could >>> take significant amount of processing time. The idle process >>> should set its polling flag before this, so another process that >>> wakes it during this time will not have to send an IPI. >>> >>> Expand the TIF_POLLING_NRFLAG coverage to as large as possible. >>> >>> Reviewed-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com> >>> Signed-off-by: Nicholas Piggin <npiggin@gmail.com> >> >> Series applied to powerpc next, thanks. >> >> https://git.kernel.org/powerpc/c/3fc5ee927ff4ffed6aa2fcd44d2fbf > > OK > > I've applied it too, so I guess I should drop it? Erk sorry. I hadn't heard anything so I picked it up. If you can drop it that would be good, but if not git will probably work it out mostly :) cheers
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| From | "Rafael J. Wysocki" <rafael@kernel.org> |
|---|---|
| Date | 2017-06-30 15:00 +0200 |
| Message-ID | <tY3GF-5AN-11@gated-at.bofh.it> |
| In reply to | #1678440 |
On Fri, Jun 30, 2017 at 5:45 AM, Michael Ellerman <mpe@ellerman.id.au> wrote: > "Rafael J. Wysocki" <rafael@kernel.org> writes: > >> On Thu, Jun 29, 2017 at 2:21 PM, Michael Ellerman >> <patch-notifications@ellerman.id.au> wrote: >>> On Wed, 2017-06-14 at 13:02:39 UTC, Nicholas Piggin wrote: >>>> local_irq_enable can cause interrupts to be taken which could >>>> take significant amount of processing time. The idle process >>>> should set its polling flag before this, so another process that >>>> wakes it during this time will not have to send an IPI. >>>> >>>> Expand the TIF_POLLING_NRFLAG coverage to as large as possible. >>>> >>>> Reviewed-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com> >>>> Signed-off-by: Nicholas Piggin <npiggin@gmail.com> >>> >>> Series applied to powerpc next, thanks. >>> >>> https://git.kernel.org/powerpc/c/3fc5ee927ff4ffed6aa2fcd44d2fbf >> >> OK >> >> I've applied it too, so I guess I should drop it? > > Erk sorry. I hadn't heard anything so I picked it up. > > If you can drop it that would be good, but if not git will probably work > it out mostly :) I've dropped it, no problem. Thanks, Rafael
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