From: Marcelo Tosatti <firstname.lastname@example.org>
Date: Tue, 25 Sep 2001 15:40:23 -0300 (BRT)
We can simply lock the pagecachelock and the pagemap_lru_lock at the
beginning of the cleaning function. page_launder() use to do that.
Thats why I asked Andrea if there was long hold times by shrink_caches().
Ok, I see.
I do think it's silly to hold the pagecache_lock during pure scanning
activities of shrink_caches().
It is known that pagecache_lock is the biggest scalability issue on
large SMP systems, and thus the page cache locking patches Ingo and
Franks a lot,
David S. Miller
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This archive was generated by hypermail 2b29 : Sun Sep 30 2001 - 21:00:33 EST