Gioh, As follow up, if you want some further discussions about why these patches should be accepted, it would be good to get some hard data about why the keeping the ext4 superblock pinned is causing such a problem for page migation. Can you give us more details about what the impact is of not having these patches? And how it compres to other data structures which are currently allocated in the moveable area and tend to be pinned effectively indefinitely? Thanks, - Ted -- 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