Commit c14f5735 authored by Benjamin Marzinski's avatar Benjamin Marzinski Committed by Steven Whitehouse
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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: default avatarBenjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: default avatarSteven Whitehouse <swhiteho@redhat.com>
parent 3d3c10f2

fs/gfs2/super.c

+9 −8
Original line number Diff line number Diff line
@@ -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);

}