sync: don't block the flusher thread waiting on IO

[karo-tx-linux.git] / include / linux / writeback.h

diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index 579a5007c696fc5b9fd95cd326470b70aa096456..abfe11787af318a409c1a95b01b7a6db1ff4acb3 100644 (file)
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -78,6 +78,7 @@ struct writeback_control {
        unsigned tagged_writepages:1;   /* tag-and-write to avoid livelock */
        unsigned for_reclaim:1;         /* Invoked from the page allocator */
        unsigned range_cyclic:1;        /* range_start is cyclic */
+       unsigned for_sync:1;            /* sync(2) WB_SYNC_ALL writeback */
 };
 
 /*