[Cluster-devel] [GFS2 PATCH] Only wake the reclaim daemon if we need to

[Steven Whitehouse <swhiteho@redhat.com>]

Hi,

Now in the -nmw git tree. Thanks,

Steve.

On Mon, 2008-01-28 at 14:54 -0600, Bob Peterson wrote:
> Hi,
> 
> This patch only wakes up the glock reclaim daemon if there is
> actually something to be reclaimed.
> 
> Regards,
> 
> Bob Peterson
> Red Hat GFS
> 
> Signed-off-by: Bob Peterson <rpeterso@redhat.com> 
> --
>  fs/gfs2/glock.c |    8 ++++----
>  1 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
> index 80e09c5..894c70e 100644
> --- a/fs/gfs2/glock.c
> +++ b/fs/gfs2/glock.c
> @@ -1586,10 +1586,10 @@ void gfs2_glock_schedule_for_reclaim(struct gfs2_glock *gl)
>  		gfs2_glock_hold(gl);
>  		list_add(&gl->gl_reclaim, &sdp->sd_reclaim_list);
>  		atomic_inc(&sdp->sd_reclaim_count);
> -	}
> -	spin_unlock(&sdp->sd_reclaim_lock);
> -
> -	wake_up(&sdp->sd_reclaim_wq);
> +		spin_unlock(&sdp->sd_reclaim_lock);
> +		wake_up(&sdp->sd_reclaim_wq);
> +	} else
> +		spin_unlock(&sdp->sd_reclaim_lock);
>  }
>  
>  /**
> 
>