Messages in this thread |  | | Date | Mon, 4 Jul 2011 09:43:09 +0900 | Subject | Re: [PATCH 1/1] mmap: Don't count shmem pages as free in __vm_enough_memory | From | Minchan Kim <> |
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On Mon, Jul 4, 2011 at 4:39 AM, Dmitry Fink <finikk@gmail.com> wrote: > shmem pages can't be reclaimed and if they are swapped out > that doesn't affect the overall available memory in the system, > so don't count them along with the rest of the file backed pages. > > Signed-off-by: Dmitry Fink <dmitry.fink@palm.com> Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
I am not sure the description is good. :( But I think this patch is reasonable.
In swapless system,guessing overcommit can have a problem. And in current implementation of OVERCOMMIT_GUESS, we consider anon pages as empty space of swap so shmem pages should be accounted by that.
-- Kind regards, Minchan Kim
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