Stable pages

Stable pages

Posted Feb 25, 2011 12:38 UTC (Fri) by alonz (subscriber, #815)
Parent article: Notes from the block layer

Can't we have a compromise solution where stable pages switch to “copy-on-write” behavior?

This should permit processes to make progress when they touch pages under writeout (at the cost of a page fault + copy, which may be more acceptable than just blocking—especially if the block device is slow/busy).

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