f2fs: do not skip any writes under memory pressure

Under memory pressure, let's avoid skipping data writes.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index 6723ccc..7f327c0 100644 (file)
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -711,6 +711,9 @@ static inline unsigned int max_hw_blocks(struct f2fs_sb_info *sbi)
  */
 static inline int nr_pages_to_skip(struct f2fs_sb_info *sbi, int type)
 {
+       if (sbi->sb->s_bdi->dirty_exceeded)
+               return 0;
+
        if (type == DATA)
                return sbi->blocks_per_seg;
        else if (type == NODE)