• Tejun Heo's avatar
    writeback: move global_dirty_limit into wb_domain · dcc25ae7
    Tejun Heo authored
    This patch is a part of the series to define wb_domain which
    represents a domain that wb's (bdi_writeback's) belong to and are
    measured against each other in.  This will enable IO backpressure
    propagation for cgroup writeback.
    
    global_dirty_limit exists to regulate the global dirty threshold which
    is a property of the wb_domain.  This patch moves hard_dirty_limit,
    dirty_lock, and update_time into wb_domain.
    
    This is pure reorganization and doesn't introduce any behavioral
    changes.
    Signed-off-by: default avatarTejun Heo <tj@kernel.org>
    Cc: Jens Axboe <axboe@kernel.dk>
    Cc: Jan Kara <jack@suse.cz>
    Cc: Wu Fengguang <fengguang.wu@intel.com>
    Cc: Greg Thelen <gthelen@google.com>
    Signed-off-by: default avatarJens Axboe <axboe@fb.com>
    dcc25ae7
page-writeback.c 76 KB