Merge with /home/shaggy/git/linus-clean/

1 files changed, 19 insertions, 17 deletions

diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c
index 22815e88e7cc..d27bac6acaa3 100644
--- a/fs/jfs/jfs_logmgr.c
+++ b/fs/jfs/jfs_logmgr.c
@@ -191,7 +191,7 @@ static int lbmIOWait(struct lbuf * bp, int flag);
 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 * log, int nosyncwait)
         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 * log, int nosyncwait)
                 /* 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 * log, int nosyncwait)
  *
  * 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);
 }