Re: [RFC] New locking primitive for 2.5

From: Ingo Molnar (mingo@elte.hu)
Date: Thu Feb 07 2002 - 16:27:14 EST


On Thu, 7 Feb 2002, Andrew Morton wrote:

> Quite a few. Significant ones. pagemap_lru_lock and lru_list_lock
> come to mind.

ugh. Are you sure we want to *sleep* with something like pagemap_lru_lock
held? That pretty much brings all pagecache related operations to a
grinding halt. I think complex spinlocked sections should be simplified
rather.

        Ingo

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