gfs2: Mark the remaining process-independent glock holders as GL_NOPID

Add the GL_NOPID flag for the remaining glock holders which are not
associated with the current process.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>

Author: Andreas Gruenbacher

fs/gfs2/inode.c

@@ -143,7 +143,8 @@ struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned int type,
 
 		if (blktype != GFS2_BLKST_UNLINKED)
 			gfs2_cancel_delete_work(io_gl);
-		error = gfs2_glock_nq_init(io_gl, LM_ST_SHARED, GL_EXACT,
+		error = gfs2_glock_nq_init(io_gl, LM_ST_SHARED,
+					   GL_EXACT | GL_NOPID,
 					   &ip->i_iopen_gh);
 		gfs2_glock_put(io_gl);
 		if (unlikely(error))
@@ -720,7 +721,8 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
 	error = insert_inode_locked4(inode, ip->i_no_addr, iget_test, &ip->i_no_addr);
 	BUG_ON(error);
 
-	error = gfs2_glock_nq_init(io_gl, LM_ST_SHARED, GL_EXACT, &ip->i_iopen_gh);
+	error = gfs2_glock_nq_init(io_gl, LM_ST_SHARED, GL_EXACT | GL_NOPID,
+				   &ip->i_iopen_gh);
 	if (error)
 		goto fail_gunlock2;
 

fs/gfs2/ops_fstype.c

@@ -403,7 +403,8 @@ static int init_locking(struct gfs2_sbd *sdp, struct gfs2_holder *mount_gh,
 
 	error = gfs2_glock_nq_num(sdp,
 				  GFS2_MOUNT_LOCK, &gfs2_nondisk_glops,
-				  LM_ST_EXCLUSIVE, LM_FLAG_NOEXP | GL_NOCACHE,
+				  LM_ST_EXCLUSIVE,
+				  LM_FLAG_NOEXP | GL_NOCACHE | GL_NOPID,
 				  mount_gh);
 	if (error) {
 		fs_err(sdp, "can't acquire mount glock: %d\n", error);
@@ -413,7 +414,7 @@ static int init_locking(struct gfs2_sbd *sdp, struct gfs2_holder *mount_gh,
 	error = gfs2_glock_nq_num(sdp,
 				  GFS2_LIVE_LOCK, &gfs2_nondisk_glops,
 				  LM_ST_SHARED,
-				  LM_FLAG_NOEXP | GL_EXACT,
+				  LM_FLAG_NOEXP | GL_EXACT | GL_NOPID,
 				  &sdp->sd_live_gh);
 	if (error) {
 		fs_err(sdp, "can't acquire live glock: %d\n", error);
@@ -689,7 +690,7 @@ static int init_statfs(struct gfs2_sbd *sdp)
 	iput(pn);
 	pn = NULL;
 	ip = GFS2_I(sdp->sd_sc_inode);
-	error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0,
+	error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, GL_NOPID,
 				   &sdp->sd_sc_gh);
 	if (error) {
 		fs_err(sdp, "can't lock local \"sc\" file: %d\n", error);
@@ -778,7 +779,7 @@ static int init_journal(struct gfs2_sbd *sdp, int undo)
 		error = gfs2_glock_nq_num(sdp, sdp->sd_lockstruct.ls_jid,
 					  &gfs2_journal_glops,
 					  LM_ST_EXCLUSIVE,
-					  LM_FLAG_NOEXP | GL_NOCACHE,
+					  LM_FLAG_NOEXP | GL_NOCACHE | GL_NOPID,
 					  &sdp->sd_journal_gh);
 		if (error) {
 			fs_err(sdp, "can't acquire journal glock: %d\n", error);
@@ -788,7 +789,8 @@ static int init_journal(struct gfs2_sbd *sdp, int undo)
 		ip = GFS2_I(sdp->sd_jdesc->jd_inode);
 		sdp->sd_jinode_gl = ip->i_gl;
 		error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED,
-					   LM_FLAG_NOEXP | GL_EXACT | GL_NOCACHE,
+					   LM_FLAG_NOEXP | GL_EXACT |
+					   GL_NOCACHE | GL_NOPID,
 					   &sdp->sd_jinode_gh);
 		if (error) {
 			fs_err(sdp, "can't acquire journal inode glock: %d\n",
@@ -959,7 +961,7 @@ static int init_per_node(struct gfs2_sbd *sdp, int undo)
 	pn = NULL;
 
 	ip = GFS2_I(sdp->sd_qc_inode);
-	error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0,
+	error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, GL_NOPID,
 				   &sdp->sd_qc_gh);
 	if (error) {
 		fs_err(sdp, "can't lock local \"qc\" file: %d\n", error);

fs/gfs2/super.c

@@ -346,7 +346,8 @@ static int gfs2_lock_fs_check_clean(struct gfs2_sbd *sdp)
 	}
 
 	error = gfs2_glock_nq_init(sdp->sd_freeze_gl, LM_ST_EXCLUSIVE,
-				   LM_FLAG_NOEXP, &sdp->sd_freeze_gh);
+				   LM_FLAG_NOEXP | GL_NOPID,
+				   &sdp->sd_freeze_gh);
 	if (error)
 		goto out;
 

fs/gfs2/util.c

@@ -226,7 +226,8 @@ static void signal_our_withdraw(struct gfs2_sbd *sdp)
 	 */
 	fs_warn(sdp, "Requesting recovery of jid %d.\n",
 		sdp->sd_lockstruct.ls_jid);
-	gfs2_holder_reinit(LM_ST_EXCLUSIVE, LM_FLAG_TRY_1CB | LM_FLAG_NOEXP,
+	gfs2_holder_reinit(LM_ST_EXCLUSIVE,
+			   LM_FLAG_TRY_1CB | LM_FLAG_NOEXP | GL_NOPID,
 			   &sdp->sd_live_gh);
 	msleep(GL_GLOCK_MAX_HOLD);
 	/*
@@ -251,7 +252,8 @@ static void signal_our_withdraw(struct gfs2_sbd *sdp)
 			fs_warn(sdp, "Unable to recover our journal jid %d.\n",
 				sdp->sd_lockstruct.ls_jid);
 		gfs2_glock_dq_wait(&sdp->sd_live_gh);
-		gfs2_holder_reinit(LM_ST_SHARED, LM_FLAG_NOEXP | GL_EXACT,
+		gfs2_holder_reinit(LM_ST_SHARED,
+				   LM_FLAG_NOEXP | GL_EXACT | GL_NOPID,
 				   &sdp->sd_live_gh);
 		gfs2_glock_nq(&sdp->sd_live_gh);
 	}