diff -urNp -- -xref/fs/jfs/jfs_logmgr.c x/fs/jfs/jfs_logmgr.c
--- -xref/fs/jfs/jfs_logmgr.c	2003-02-27 08:15:29.000000000 +0100
+++ x/fs/jfs/jfs_logmgr.c	2003-03-13 05:42:34.000000000 +0100
@@ -1824,6 +1824,7 @@ static inline void lbmRedrive(struct lbu
 static int lbmRead(struct jfs_log * log, int pn, struct lbuf ** bpp)
 {
 	struct lbuf *bp;
+	unsigned long flags;
 
 	/*
 	 * allocate a log buffer
@@ -1831,6 +1832,8 @@ static int lbmRead(struct jfs_log * log,
 	*bpp = bp = lbmAllocate(log, pn);
 	jfs_info("lbmRead: bp:0x%p pn:0x%x", bp, pn);
 
+	LCACHE_LOCK(flags);		/* disable+lock */
+
 	bp->l_flag |= lbmREAD;
 	bp->l_bh.b_reqnext = NULL;
 	clear_bit(BH_Uptodate, &bp->l_bh.b_state);
@@ -1839,10 +1842,13 @@ static int lbmRead(struct jfs_log * log,
 	set_bit(BH_Req, &bp->l_bh.b_state);
 	bp->l_bh.b_rdev = bp->l_bh.b_dev;
 	bp->l_bh.b_rsector = bp->l_blkno << (log->l2bsize - 9);
+	bh_elv_seq(&bp->l_bh) = 0;
 	generic_make_request(READ, &bp->l_bh);
 	run_task_queue(&tq_disk);
 
-	wait_event(bp->l_ioevent, (bp->l_flag != lbmREAD));
+	LCACHE_SLEEP_COND(bp->l_ioevent, (bp->l_flag != lbmREAD), flags);
+
+	LCACHE_UNLOCK(flags);	/* unlock+enable */
 
 	return 0;
 }
@@ -1975,6 +1981,7 @@ static void lbmStartIO(struct lbuf * bp)
 	set_bit(BH_Req, &bp->l_bh.b_state);
 	bp->l_bh.b_rdev = bp->l_bh.b_dev;
 	bp->l_bh.b_rsector = bp->l_blkno << (bp->l_log->l2bsize - 9);
+	bh_elv_seq(&bp->l_bh) = 0;
 	generic_make_request(WRITE, &bp->l_bh);
 
 	INCREMENT(lmStat.submitted);