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| author |   Chao Yu <chao2.yu@samsung.com> | 2016-02-14 18:54:33 +0800 |
|---|---|---|
| committer |   Jaegeuk Kim <jaegeuk@kernel.org> | 2016-02-22 21:39:54 -0800 |
| commit | e9f5b8b8d6e279ab61d5902fcbebf3799597c900 (patch) | |
| tree | c393dc434bf51e7cb013f005960b56034ba1a8ea /fs/f2fs/segment.c | |
| parent | f2fs: introduce f2fs_journal struct to wrap journal info (diff) | |
| download | linux-dev-e9f5b8b8d6e279ab61d5902fcbebf3799597c900.tar.xz linux-dev-e9f5b8b8d6e279ab61d5902fcbebf3799597c900.zip | |
f2fs: enhance IO path with block plug
Try to use block plug in more place as below to let process cache bios
as much as possbile, in order to reduce lock overhead of queue in IO
scheduler.
1) sync_meta_pages
2) ra_meta_pages
3) f2fs_balance_fs_bg
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/segment.c')
| -rw-r--r-- | fs/f2fs/segment.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 5902a67c5a1c..eb7979d6d1f3 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -370,8 +370,13 @@ void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi) excess_prefree_segs(sbi) || excess_dirty_nats(sbi) || (is_idle(sbi) && f2fs_time_over(sbi, CP_TIME))) { - if (test_opt(sbi, DATA_FLUSH)) + if (test_opt(sbi, DATA_FLUSH)) { + struct blk_plug plug; + + blk_start_plug(&plug); sync_dirty_inodes(sbi, FILE_INODE); + blk_finish_plug(&plug); + } f2fs_sync_fs(sbi->sb, true); stat_inc_bg_cp_count(sbi->stat_info); } @@ -2154,7 +2159,7 @@ static void build_sit_entries(struct f2fs_sb_info *sbi) int sit_blk_cnt = SIT_BLK_CNT(sbi); unsigned int i, start, end; unsigned int readed, start_blk = 0; - int nrpages = MAX_BIO_BLOCKS(sbi); + int nrpages = MAX_BIO_BLOCKS(sbi) * 8; do { readed = ra_meta_pages(sbi, start_blk, nrpages, META_SIT, true); |