gfs2: don't initialize statfs_change inodes in spectator mode

Before commit 97fd734ba17e, the local statfs_changeX inode was never
initialized for spectator mounts. However, it still checks for
spectator mounts when unmounting everything. There's no good reason to
lookup the statfs_changeX files because spectators cannot perform recovery.
It still, however, needs the master statfs file for statfs calls.
This patch adds the check for spectator mounts to init_statfs.

Fixes: 97fd734ba17e ("gfs2: lookup local statfs inodes prior to journal recovery")
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>

diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index 1ed4b61..61fce59 100644 (file)
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -633,8 +633,10 @@ static int init_statfs(struct gfs2_sbd *sdp)
        if (IS_ERR(sdp->sd_statfs_inode)) {
                error = PTR_ERR(sdp->sd_statfs_inode);
                fs_err(sdp, "can't read in statfs inode: %d\n", error);
-               goto fail;
+               goto out;
        }
+       if (sdp->sd_args.ar_spectator)
+               goto out;
 
        pn = gfs2_lookup_simple(master, "per_node");
        if (IS_ERR(pn)) {
@@ -682,15 +684,17 @@ free_local:
        iput(pn);
 put_statfs:
        iput(sdp->sd_statfs_inode);
-fail:
+out:
        return error;
 }
 
 /* Uninitialize and free up memory used by the list of statfs inodes */
 static void uninit_statfs(struct gfs2_sbd *sdp)
 {
-       gfs2_glock_dq_uninit(&sdp->sd_sc_gh);
-       free_local_statfs_inodes(sdp);
+       if (!sdp->sd_args.ar_spectator) {
+               gfs2_glock_dq_uninit(&sdp->sd_sc_gh);
+               free_local_statfs_inodes(sdp);
+       }
        iput(sdp->sd_statfs_inode);
 }