[PATCH] s390: common i/o layer
From: Martin Schwidefsky <schwidefsky@de.ibm.com> Common i/o layer changes: - qdio: Lose the adapter lock for thin interrupts to improve performance and do unregister of the adapter interrupt handler with rcu. - ccwgroup: Fix error handling when creating a ccwgroup device. - Convert the slow crw kernel thread to a single threaded workqueue. - Use the slow crw workqueue to unregister a subchannel after it was found not operational to serialize it with other possible unregister/ register events coming in via machine checks. - Trigger a rescan of the css via the slow path if a missing channel path is found in __recover_lost_chpids. - Use saner default levels for the debug feature, add some debugging code. - Remove request_irq and free_irq stubs. - Remove bogus inlines. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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