[GFS2] Eliminate the no longer needed sd_statfs_mutex

This patch eliminates the unneeded sd_statfs_mutex mutex but preserves
the ordering as discussed.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

3 files changed, 0 insertions, 6 deletions

diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index 51166c12c5d7..350b5169a9a0 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -529,7 +529,6 @@ struct gfs2_sbd {
         /* StatFS stuff */
 
         spinlock_t sd_statfs_spin;
-        struct mutex sd_statfs_mutex;
         struct gfs2_statfs_change_host sd_statfs_master;
         struct gfs2_statfs_change_host sd_statfs_local;
         unsigned long sd_statfs_sync_time;
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index 0921f17a164c..79f9bb365f10 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -60,7 +60,6 @@ static struct gfs2_sbd *init_sbd(struct super_block *sb)
 
         mutex_init(&sdp->sd_inum_mutex);
         spin_lock_init(&sdp->sd_statfs_spin);
-        mutex_init(&sdp->sd_statfs_mutex);
 
         spin_lock_init(&sdp->sd_rindex_spin);
         mutex_init(&sdp->sd_rindex_mutex);
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index 22e09660d648..5d0017d313a3 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -688,9 +688,7 @@ void gfs2_statfs_change(struct gfs2_sbd *sdp, s64 total, s64 free,
         if (error)
                 return;
 
-        mutex_lock(&sdp->sd_statfs_mutex);
         gfs2_trans_add_bh(l_ip->i_gl, l_bh, 1);
-        mutex_unlock(&sdp->sd_statfs_mutex);
 
         spin_lock(&sdp->sd_statfs_spin);
         l_sc->sc_total += total;
@@ -738,9 +736,7 @@ int gfs2_statfs_sync(struct gfs2_sbd *sdp)
         if (error)
                 goto out_bh2;
 
-        mutex_lock(&sdp->sd_statfs_mutex);
         gfs2_trans_add_bh(l_ip->i_gl, l_bh, 1);
-        mutex_unlock(&sdp->sd_statfs_mutex);
 
         spin_lock(&sdp->sd_statfs_spin);
         m_sc->sc_total += l_sc->sc_total;