From: Chao Yu <chao2.yu@samsung.com>
To: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: linux-f2fs-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org
Subject: [PATCH 4/7] f2fs: readahead cp payload pages when mount
Date: Fri, 11 Sep 2015 14:40:01 +0800 [thread overview]
Message-ID: <00f401d0ec5c$cd807a80$68816f80$@samsung.com> (raw)
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
reply other threads:[~2015-09-11 6:40 UTC|newest]
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