f2fs: provide f2fs_balance_fs to __write_node_page

Let node writeback also do f2fs_balance_fs to ensure there are always enough free
segments.

Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Yunlong Song 2017-07-27 20:11:00 +08:00 • committed by Jaegeuk Kim
commit 401db79f61
3 changed files with 13 additions and 8 deletions