---------------------
PatchSet 828
Date: 2002/04/15 21:34:54
Author: sct
Log:
Fix LVM snapshot deadlock: it is a bad idea to try to flush all running
transactions while we already hold the superblock lock.  Drop the sb lock
while we flush.

Members: 
	fs/ext3/super.c:1.34.2.20->1.34.2.21 [ext3-1_0-branch]

--- linux-ext3-2.4merge/fs/ext3/super.c.=K0002=.orig	Sat Aug 17 20:10:27 2002
+++ linux-ext3-2.4merge/fs/ext3/super.c	Sat Aug 17 20:23:19 2002
@@ -1588,8 +1588,10 @@
 		journal_t *journal = EXT3_SB(sb)->s_journal;
 
 		/* Now we set up the journal barrier. */
+		unlock_super(sb);
 		journal_lock_updates(journal);
 		journal_flush(journal);
+		lock_super(sb);
 
 		/* Journal blocked and flushed, clear needs_recovery flag. */
 		EXT3_CLEAR_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);