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| author | Chao Yu <chao2.yu@samsung.com> | 2014-12-08 07:02:52 (GMT) |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2014-12-08 22:19:09 (GMT) |
| commit | 635aee1fefef921ae4124b127fced62ea6008839 (patch) | |
| tree | 92559fbad6271bbb0db0c7047b0e6bb370a9f1bc /fs/f2fs/recovery.c | |
| parent | 66b00c186764e29765e8962a03556c329dee48e5 (diff) | |
| download | linux-635aee1fefef921ae4124b127fced62ea6008839.tar.xz | |
f2fs: avoid to ra unneeded blocks in recover flow
To improve recovery speed, f2fs try to readahead many contiguous blocks in warm
node segment, but for most time, abnormal power-off do not occur frequently, so
when mount a normal power-off f2fs image, by contrary ra so many blocks and then
invalid them will hurt the performance of mount.
It's better to just ra the first next-block for normal condition.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/recovery.c')
| -rw-r--r-- | fs/f2fs/recovery.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c index 9a93a6e..9160a37 100644 --- a/fs/f2fs/recovery.c +++ b/fs/f2fs/recovery.c @@ -170,13 +170,15 @@ static int find_fsync_dnodes(struct f2fs_sb_info *sbi, struct list_head *head) curseg = CURSEG_I(sbi, CURSEG_WARM_NODE); blkaddr = NEXT_FREE_BLKADDR(sbi, curseg); + ra_meta_pages(sbi, blkaddr, 1, META_POR); + while (1) { struct fsync_inode_entry *entry; if (blkaddr < MAIN_BLKADDR(sbi) || blkaddr >= MAX_BLKADDR(sbi)) return 0; - page = get_meta_page_ra(sbi, blkaddr); + page = get_meta_page(sbi, blkaddr); if (cp_ver != cpver_of_node(page)) break; @@ -227,6 +229,8 @@ next: /* check next segment */ blkaddr = next_blkaddr_of_node(page); f2fs_put_page(page, 1); + + ra_meta_pages_cond(sbi, blkaddr); } f2fs_put_page(page, 1); return err; @@ -436,7 +440,9 @@ static int recover_data(struct f2fs_sb_info *sbi, if (blkaddr < MAIN_BLKADDR(sbi) || blkaddr >= MAX_BLKADDR(sbi)) break; - page = get_meta_page_ra(sbi, blkaddr); + ra_meta_pages_cond(sbi, blkaddr); + + page = get_meta_page(sbi, blkaddr); if (cp_ver != cpver_of_node(page)) { f2fs_put_page(page, 1); |