writeback: mark background writeback as such

If we're doing background type writes, then use the appropriate background write flags for that. Signed-off-by: Jens Axboe <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]>
mrcsosa · Nov 2, 2016 · 13edd5e · 13edd5e
1 parent 7637241
commit 13edd5e
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
@@ -107,6 +107,8 @@ static inline int wbc_to_write_flags(struct writeback_control *wbc)
 {
 	if (wbc->sync_mode == WB_SYNC_ALL)
 		return REQ_SYNC;
+	else if (wbc->for_kupdate || wbc->for_background)
+		return REQ_BACKGROUND;
 
 	return 0;
 }