If we're doing reclaim or sync IO, use WRITE_SYNC to inform the lower
levels of the importance of this IO.
Signed-off-by: Jens Axboe <axboe@xxxxxx>
---
include/linux/writeback.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index 719c255e105a..b2c75b8901da 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -102,7 +102,7 @@ struct writeback_control {
static inline int wbc_to_write(struct writeback_control *wbc)
{
- if (wbc->sync_mode == WB_SYNC_ALL)
+ if (wbc->sync_mode == WB_SYNC_ALL || wbc->for_reclaim || wbc->for_sync)
return WRITE_SYNC;
return WRITE;
--
2.8.0.rc4.6.g7e4ba36
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