[PATCH 4/7] f2fs: readahead cp payload pages when mount

Chao Yu
2015-09-11T06:40:54Z

Readahead continuous payload pages in checkpoint area for better
performance.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
---
fs/f2fs/checkpoint.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index c5a38e3..7c1b297 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -676,6 +676,9 @@ int get_valid_checkpoint(struct f2fs_sb_info *sbi)
if (cur_page == cp2)
cp_blk_no += 1 << le32_to_cpu(fsb->log_blocks_per_seg);

+ if (cp_blks > 2)
+ ra_meta_pages(sbi, cp_blk_no + 1, cp_blks - 1, META_CP);
+
for (i = 1; i < cp_blks; i++) {
void *sit_bitmap_ptr;
unsigned char *ckpt = (unsigned char *)sbi->ckpt;
--
2.4.2