linux-kernel - [patch 0/2] Refactor spinlock inlining

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Date:	Mon, 09 Nov 2009 15:21:26 -0000
From:	Thomas Gleixner <tglx@...utronix.de>
To:	LKML <linux-kernel@...r.kernel.org>
Subject: [patch 0/2] Refactor spinlock inlining

While moving preempt-rt to 2.6.32-rc I tripped over the spinlock
inlining changes and had a hard time to figure out when and which lock
function is inlined as the __always_inline__ defines are not directly
controlling the inlining because there are overrides depending on
various config options.

Merging the -rt modifications into this results in a horrible mess and
I tried to find a solution which simplifies the inlining decisions and
makes it more obvious when the decision is taken. 

To allow easier intergration of preempt-rt I reworked the inline
decision ifdeffery to be completely Kconfig based.

The result is slightly smaller in code lines, but adds a Kconfig file
which contains all the rules of inlining decisions. Architecturs can
select each locking function for inlining in the arch Kconfig instead
of defining __always_inline__*.

Thanks,

	tglx

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