[PATCH 2/2] Convert PowerPC macro spin_event_timeout() to architecture... | linux-arm-kernel

[PATCH 0/2] Make PPC macro spin_event_timeout() architecture independent · Arpit Goel <hidden> · 2013-07-30
[PATCH 2/2] Convert PowerPC macro spin_event_timeout() to architecture independent macro · Arpit Goel <hidden> · 2013-07-30
Re: [PATCH 2/2] Convert PowerPC macro spin_event_timeout() to architecture independent macro · Stephen Boyd <hidden> · 2013-07-31
Re: [PATCH 2/2] Convert PowerPC macro spin_event_timeout() to architecture independent macro · Timur Tabi <hidden> · 2013-07-31
Re: [PATCH 2/2] Convert PowerPC macro spin_event_timeout() to architecture independent macro · Stephen Boyd <hidden> · 2013-08-01
Re: [PATCH 2/2] Convert PowerPC macro spin_event_timeout() to architecture independent macro · Timur Tabi <hidden> · 2013-08-01
Re: [PATCH 2/2] Convert PowerPC macro spin_event_timeout() to architecture independent macro · Stephen Boyd <hidden> · 2013-08-01
Re: [PATCH 2/2] Convert PowerPC macro spin_event_timeout() to architecture independent macro · Timur Tabi <hidden> · 2013-08-01
Re: [PATCH 2/2] Convert PowerPC macro spin_event_timeout() to architecture independent macro · Stephen Boyd <hidden> · 2013-08-01
[PATCH 2/2] Convert PowerPC macro spin_event_timeout() to architecture independent macro · Srivastava Rajan-B34330 <hidden> · 2013-08-01
[PATCH 2/2] Convert PowerPC macro spin_event_timeout() to architecture independent macro · Goel Arpit-B44344 <hidden> · 2013-08-01
Re: [PATCH 2/2] Convert PowerPC macro spin_event_timeout() to architecture independent macro · Timur Tabi <hidden> · 2013-08-01
[PATCH 2/2] Convert PowerPC macro spin_event_timeout() to architecture independent macro · Goel Arpit-B44344 <hidden> · 2013-08-01
[PATCH 2/2] Convert PowerPC macro spin_event_timeout() to architecture independent macro · Timur Tabi <hidden> · 2013-08-01
[PATCH 1/2] Make USECS_PER_JIFFY available for generic use · Arpit Goel <hidden> · 2013-07-30
Re: [PATCH 0/2] Make PPC macro spin_event_timeout() architecture independent · Geert Uytterhoeven <geert@linux-m68k.org> · 2013-07-30
[PATCH 0/2] Make PPC macro spin_event_timeout() architecture independent · Goel Arpit-B44344 <hidden> · 2013-07-31

[PATCH 2/2] Convert PowerPC macro spin_event_timeout() to architecture independent macro

From: Timur Tabi <hidden>
Date: 2013-08-01 00:13:08
Also in: linux-m68k, lkml, sparclinux

On 07/31/2013 07:04 PM, Stephen Boyd wrote:

If it yields why are we using udelay? Why not usleep_range()? It would
be useful to have a variant that worked in interrupt context and it
looked like that was almost possible.

I've never heard of usleep_range() before, so I don't know if it
applies.  Apparently, udelay() includes its own call to cpu_relax().  Is
it possible that cpu_relax() is a "lightweight" yield, compared to sleeping?

FYI, you might want to look at the code reviews for spin_event_timeout()
on the linuxppc-dev mailing list, back in March 2009.

-- 
-- 
Timur Tabi

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