GFS2: remove division from new statfs code

It's not necessary to do any 64bit division for the statfs sync code, so
remove it.

Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

1 files changed, 9 insertions, 8 deletions

diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index 3fee2fd3ae43..b1dcfab36465 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -472,7 +472,8 @@ void gfs2_statfs_change(struct gfs2_sbd *sdp, s64 total, s64 free,
         struct gfs2_statfs_change_host *l_sc = &sdp->sd_statfs_local;
         struct gfs2_statfs_change_host *m_sc = &sdp->sd_statfs_master;
         struct buffer_head *l_bh;
-        int percent, sync_percent;
+        s64 x, y;
+        int need_sync = 0;
         int error;
 
         error = gfs2_meta_inode_buffer(l_ip, &l_bh);
@@ -486,16 +487,16 @@ void gfs2_statfs_change(struct gfs2_sbd *sdp, s64 total, s64 free,
         l_sc->sc_free += free;
         l_sc->sc_dinodes += dinodes;
         gfs2_statfs_change_out(l_sc, l_bh->b_data + sizeof(struct gfs2_dinode));
-        if (m_sc->sc_free)
-                percent = (100 * l_sc->sc_free) / m_sc->sc_free;
-        else
-                percent = 100;
+        if (sdp->sd_args.ar_statfs_percent) {
+                x = 100 * l_sc->sc_free;
+                y = m_sc->sc_free * sdp->sd_args.ar_statfs_percent;
+                if (x >= y || x <= -y)
+                        need_sync = 1;
+        }
         spin_unlock(&sdp->sd_statfs_spin);
 
         brelse(l_bh);
-        sync_percent = sdp->sd_args.ar_statfs_percent;
-        if (sync_percent && (percent >= sync_percent ||
-                             percent <= -sync_percent))
+        if (need_sync)
                 gfs2_wake_up_statfs(sdp);
 }