GIT da28c12089dfcfb8695b6b555cdb8e03dda2b690 master.kernel.org:/pub/scm/linux/kernel/git/shaggy/jfs-2.6.git#for-mm

---
diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c
--- a/fs/jfs/jfs_logmgr.c
+++ b/fs/jfs/jfs_logmgr.c
@@ -191,7 +191,7 @@ static int lbmIOWait(struct lbuf * bp, i
 static bio_end_io_t lbmIODone;
 static void lbmStartIO(struct lbuf * bp);
 static void lmGCwrite(struct jfs_log * log, int cant_block);
-static int lmLogSync(struct jfs_log * log, int nosyncwait);
+static int lmLogSync(struct jfs_log * log, int hard_sync);
 
 
 
@@ -915,19 +915,17 @@ static void lmPostGC(struct lbuf * bp)
  *	if new sync address is available
  *	(normally the case if sync() is executed by back-ground
  *	process).
- *	if not, explicitly run jfs_blogsync() to initiate
- *	getting of new sync address.
  *	calculate new value of i_nextsync which determines when
  *	this code is called again.
  *
  * PARAMETERS:	log	- log structure
- * 		nosyncwait - 1 if called asynchronously
+ * 		hard_sync - 1 to force all metadata to be written
  *
  * RETURN:	0
  *			
  * serialization: LOG_LOCK() held on entry/exit
  */
-static int lmLogSync(struct jfs_log * log, int nosyncwait)
+static int lmLogSync(struct jfs_log * log, int hard_sync)
 {
 	int logsize;
 	int written;		/* written since last syncpt */
@@ -941,11 +939,18 @@ static int lmLogSync(struct jfs_log * lo
 	unsigned long flags;
 
 	/* push dirty metapages out to disk */
-	list_for_each_entry(sbi, &log->sb_list, log_list) {
-		filemap_flush(sbi->ipbmap->i_mapping);
-		filemap_flush(sbi->ipimap->i_mapping);
-		filemap_flush(sbi->direct_inode->i_mapping);
-	}
+	if (hard_sync)
+		list_for_each_entry(sbi, &log->sb_list, log_list) {
+			filemap_fdatawrite(sbi->ipbmap->i_mapping);
+			filemap_fdatawrite(sbi->ipimap->i_mapping);
+			filemap_fdatawrite(sbi->direct_inode->i_mapping);
+		}
+	else
+		list_for_each_entry(sbi, &log->sb_list, log_list) {
+			filemap_flush(sbi->ipbmap->i_mapping);
+			filemap_flush(sbi->ipimap->i_mapping);
+			filemap_flush(sbi->direct_inode->i_mapping);
+		}
 
 	/*
 	 *      forward syncpt
@@ -1021,10 +1026,6 @@ static int lmLogSync(struct jfs_log * lo
 		/* next syncpt trigger = written + more */
 		log->nextsync = written + more;
 
-	/* return if lmLogSync() from outside of transaction, e.g., sync() */
-	if (nosyncwait)
-		return lsn;
-
 	/* if number of bytes written from last sync point is more
 	 * than 1/4 of the log size, stop new transactions from
 	 * starting until all current transactions are completed
@@ -1049,11 +1050,12 @@ static int lmLogSync(struct jfs_log * lo
  *
  * FUNCTION:	write log SYNCPT record for specified log
  *
- * PARAMETERS:	log	- log structure
+ * PARAMETERS:	log	  - log structure
+ * 		hard_sync - set to 1 to force metadata to be written
  */
-void jfs_syncpt(struct jfs_log *log)
+void jfs_syncpt(struct jfs_log *log, int hard_sync)
 {	LOG_LOCK(log);
-	lmLogSync(log, 1);
+	lmLogSync(log, hard_sync);
 	LOG_UNLOCK(log);
 }
 
diff --git a/fs/jfs/jfs_logmgr.h b/fs/jfs/jfs_logmgr.h
--- a/fs/jfs/jfs_logmgr.h
+++ b/fs/jfs/jfs_logmgr.h
@@ -510,6 +510,6 @@ extern int lmLogFormat(struct jfs_log *l
 extern int lmGroupCommit(struct jfs_log *, struct tblock *);
 extern int jfsIOWait(void *);
 extern void jfs_flush_journal(struct jfs_log * log, int wait);
-extern void jfs_syncpt(struct jfs_log *log);
+extern void jfs_syncpt(struct jfs_log *log, int hard_sync);
 
 #endif				/* _H_JFS_LOGMGR */
diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c
--- a/fs/jfs/jfs_txnmgr.c
+++ b/fs/jfs/jfs_txnmgr.c
@@ -552,6 +552,11 @@ void txEnd(tid_t tid)
 		 * synchronize with logsync barrier
 		 */
 		if (test_bit(log_SYNCBARRIER, &log->flag)) {
+			TXN_UNLOCK();
+
+			/* write dirty metadata & forward log syncpt */
+			jfs_syncpt(log, 1);
+
 			jfs_info("log barrier off: 0x%x", log->lsn);
 
 			/* enable new transactions start */
@@ -560,11 +565,6 @@ void txEnd(tid_t tid)
 			/* wakeup all waitors for logsync barrier */
 			TXN_WAKEUP(&log->syncwait);
 
-			TXN_UNLOCK();
-
-			/* forward log syncpt */
-			jfs_syncpt(log);
-
 			goto wakeup;
 		}
 	}
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -531,7 +531,7 @@ static int jfs_sync_fs(struct super_bloc
 	/* log == NULL indicates read-only mount */
 	if (log) {
 		jfs_flush_journal(log, wait);
-		jfs_syncpt(log);
+		jfs_syncpt(log, 0);
 	}
 
 	return 0;