On Thu, 18 Oct 2007 17:27:00 +1000 Nick Piggin <nickpiggin@xxxxxxxxxxxx> wrote: > Some filesystems, including I believe, ext3 with data=ordered, > can leave orphaned pages around after they have been truncated > out of the pagecache. These pages get left on the LRU and vmscan > reclaims them pretty easily. How can the VM recognize those pages? Are they part of the buffer cache, part of the page cache, or different? I think it would make sense to at least try to rotate those pages to the end of the LRU so kswapd can get rid of them quickly. -- "Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it." - Brian W. Kernighan - To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
