• Mel Gorman's avatar
    mm: vmscan: immediately reclaim end-of-LRU dirty pages when writeback completes · 49ea7eb6
    Mel Gorman authored
    When direct reclaim encounters a dirty page, it gets recycled around the
    LRU for another cycle.  This patch marks the page PageReclaim similar to
    deactivate_page() so that the page gets reclaimed almost immediately after
    the page gets cleaned.  This is to avoid reclaiming clean pages that are
    younger than a dirty page encountered at the end of the LRU that might
    have been something like a use-once page.
    Signed-off-by: default avatarMel Gorman <mgorman@suse.de>
    Acked-by: default avatarJohannes Weiner <jweiner@redhat.com>
    Cc: Dave Chinner <david@fromorbit.com>
    Cc: Christoph Hellwig <hch@infradead.org>
    Cc: Wu Fengguang <fengguang.wu@intel.com>
    Cc: Jan Kara <jack@suse.cz>
    Cc: Minchan Kim <minchan.kim@gmail.com>
    Cc: Rik van Riel <riel@redhat.com>
    Cc: Mel Gorman <mgorman@suse.de>
    Cc: Alex Elder <aelder@sgi.com>
    Cc: Theodore Ts'o <tytso@mit.edu>
    Cc: Chris Mason <chris.mason@oracle.com>
    Cc: Dave Hansen <dave@linux.vnet.ibm.com>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    49ea7eb6
vmstat.c 33.1 KB