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From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Russell King <linux@arm.linux.org.uk>,
	Chris Ball <chris@printf.net>,
	linux-mmc@vger.kernel.org, Ingo Molnar <mingo@elte.hu>,
	Peter Zijlstra <peterz@infradead.org>
Subject: [patch 0/2] genirq: Add functions to avoid driver hackery
Date: Sat, 15 Feb 2014 00:55:18 -0000	[thread overview]
Message-ID: <20140215002742.507053194@linutronix.de> (raw)

Russell tricked me to look into the homebrewn kthread hackery of
drivers/mmc. I'm still trying to recover from that.

But it spurred an interesting discussion how to improve things and the
outcome was the following series of patches:

1) Provide means to synchronize only hard irq context

2) Provide means to trigger a threaded irq handler from any context

The main rationale is to cleanup the mess in drivers/mmc and other
places but each of the patches has a justification for itself
exemplified by the drivers/mmc use case, which is explained in detail
in the changelogs of the individual patches.

Russell has a working implementation for sdhci which relies on patch
#1 ready and quite some ideas how to make use of #2 to kill the
sdio_irq kthread hackery.

Thanks,

	tglx




             reply	other threads:[~2014-02-15  0:55 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-15  0:55 Thomas Gleixner [this message]
2014-02-15  0:55 ` [patch 1/2] genirq: Provide synchronize_hardirq() Thomas Gleixner
2014-02-15  9:50   ` Peter Zijlstra
2014-02-19 16:27   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2014-02-15  0:55 ` [patch 2/2] genirq: Provide irq_wake_thread() Thomas Gleixner
2014-02-15  9:50   ` Peter Zijlstra
2014-02-19 16:27   ` [tip:irq/core] " tip-bot for Thomas Gleixner

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