• Daniel Vetter's avatar
    drm/i915: Fix up usage of SHRINK_STOP · d3227046
    Daniel Vetter authored
    In
    
    commit 81e49f81
    Author: Glauber Costa <glommer@openvz.org>
    Date:   Wed Aug 28 10:18:13 2013 +1000
    
        i915: bail out earlier when shrinker cannot acquire mutex
    
    SHRINK_STOP was added to tell the core shrinker code to bail out and
    go to the next shrinker since the i915 shrinker couldn't acquire
    required locks. But the SHRINK_STOP return code was added to the
    ->count_objects callback and not the ->scan_objects callback as it
    should have been, resulting in tons of dmesg noise like
    
    shrink_slab: i915_gem_inactive_scan+0x0/0x9c negative objects to delete nr=-xxxxxxxxx
    
    Fix discusssed with Dave Chinner.
    
    References: http://www.spinics.net/lists/intel-gfx/msg33597.htmlReported-by: default avatarKnut Petersen <Knut_Petersen@t-online.de>
    Cc: Knut Petersen <Knut_Petersen@t-online.de>
    Cc: Dave Chinner <david@fromorbit.com>
    Cc: Glauber Costa <glommer@openvz.org>
    Cc: Glauber Costa <glommer@gmail.com>
    Cc: Andrew Morton <akpm@linux-foundation.org>
    Cc: Rik van Riel <riel@redhat.com>
    Cc: Mel Gorman <mgorman@suse.de>
    Cc: Johannes Weiner <hannes@cmpxchg.org>
    Cc: Michal Hocko <mhocko@suse.cz>
    Acked-by: default avatarDave Chinner <dchinner@redhat.com>
    Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
    d3227046
i915_gem.c 124 KB