Re: [PATCH mmotm] mm: introduce page_lru_base_type fix

From: Johannes Weiner
Date: Wed Aug 26 2009 - 06:35:05 EST


On Wed, Aug 26, 2009 at 10:53:47AM +0100, Hugh Dickins wrote:
> My usual tmpfs swapping loads on recent mmotms have oddly
> aroused the OOM killer after an hour or two. Bisection led to
> mm-return-boolean-from-page_is_file_cache.patch, but really it's
> the prior mm-introduce-page_lru_base_type.patch that's at fault.
>
> It converted page_lru() to use page_lru_base_type(), but forgot
> to convert del_page_from_lru() - which then decremented the wrong
> stats once page_is_file_cache() was changed to a boolean.

Ouch, sorry. Thanks for your fix.

> Fix that, move page_lru_base_type() before del_page_from_lru(),
> and mark it "inline" like the other mm_inline.h functions.

Hannes
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