Messages in this thread | | | Date | Fri, 16 Feb 2018 16:28:09 -0800 | From | Andrew Morton <> | Subject | Re: [PATCH] z3fold: limit use of stale list for allocation |
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On Sat, 10 Feb 2018 12:02:52 +0100 Vitaly Wool <vitalywool@gmail.com> wrote:
> Currently if z3fold couldn't find an unbuddied page it would first > try to pull a page off the stale list. The problem with this > approach is that we can't 100% guarantee that the page is not > processed by the workqueue thread at the same time unless we run > cancel_work_sync() on it, which we can't do if we're in an atomic > context. So let's just limit stale list usage to non-atomic > contexts only.
This smells like a bugfix. What are the end-user visible effects of the bug?
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