[PATCH 5/5] f2fs: do not skip any writes under memory pressure

From: Jaegeuk Kim
Date: Sun Nov 09 2014 - 02:36:22 EST


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

Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
---
fs/f2fs/segment.h | 3 +++
1 file changed, 3 insertions(+)

diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index 6723ccc..7f327c0 100644
--- 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)
--
2.1.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/