[PATCH] f2fs: fix to write node pages with WRITE_SYNC

This patch fixes performance regression of dbench reported by Alex . This issue was revealed by Phoronix tests results: http://www.phoronix.com/scan.php?page=article=linux_314_ssdfs=2 It turns out that we need to assign WRITE_SYNC to the node writes, if fsync is triggered. The performance

[PATCH] f2fs: fix to write node pages with WRITE_SYNC

This patch fixes performance regression of dbench reported by Alex hb...@yandex.com. This issue was revealed by Phoronix tests results: http://www.phoronix.com/scan.php?page=articleitem=linux_314_ssdfsnum=2 It turns out that we need to assign WRITE_SYNC to the node writes, if fsync is triggered.