From: NeilBrown <neilb@suse.de>
Date: Fri, 25 Jun 2010 10:38:30 +0000 (+1000)
Subject: Add tracing to show orphans at shutdown.
X-Git-Url: http://git.neil.brown.name/?a=commitdiff_plain;h=3fc263644ea0f1bf11046ee0460affad6cd90bb3;p=LaFS.git

Add tracing to show orphans at shutdown.

We have had problems with orphans not disappearing.

Signed-off-by: NeilBrown <neilb@suse.de>
---

diff --git a/super.c b/super.c
index 8951caf..ccb06da 100644
--- a/super.c
+++ b/super.c
@@ -677,6 +677,21 @@ lafs_release(struct fs *fs)
 	kfree(fs);
 }
 
+static int show_orphans(struct fs *fs)
+{
+	struct datablock *db;
+	printk("Orphans:\n");
+	list_for_each_entry(db, &fs->pending_orphans,
+			    orphans) {
+		printk("orphan=%s\n", strblk(&db->b));
+		if (LAFSI(db->b.inode)->type == TypeInodeFile)
+			lafs_print_tree(&LAFSI(db->my_inode)->iblock->b, 0);
+	}
+	printk("cleaner active: %d %d\n", fs->cleaner.active,
+	       fs->scan.done);
+	return 1; /* meaningless, but makes it easy to add to wait_event below */
+}
+
 static void
 lafs_put_super(struct super_block *sb)
 {
@@ -697,6 +712,7 @@ lafs_put_super(struct super_block *sb)
 
 		/* FIXME maybe I want these tests in a spinlock ?? */
 		wait_event(fs->async_complete,
+			   show_orphans(fs) &&
 			   !test_bit(OrphansRunning, &fs->fsstate) &&
 			   list_empty(&fs->pending_orphans) &&
 			   fs->scan.done == 1 &&