diff options
| author | Chao Yu <yuchao0@huawei.com> | 2017-08-02 23:21:48 +0800 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-10-04 15:31:53 +0200 |
| commit | f1f9f13fefb340668d293549de44bd77b88d14a1 (patch) | |
| tree | c29bab4d110afbcbe806a4c336643eba37c20d51 /fs/f2fs/node.c | |
| parent | fc0b2bc3314991b7f19859b92aa36a6698c34035 (diff) | |
f2fs: add app/fs io stat
This patch enables inner app/fs io stats and introduces below virtual fs
nodes for exposing stats info:
/sys/fs/f2fs/<dev>/iostat_enable
/proc/fs/f2fs/<dev>/iostat_info
Signed-off-by: Chao Yu <yuchao0@huawei.com>
[Jaegeuk Kim: fix wrong stat assignment]
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/node.c')
| -rw-r--r-- | fs/f2fs/node.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index 1fda3b286..8c19f34f7 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -1349,7 +1349,8 @@ continue_unlock: } static int __write_node_page(struct page *page, bool atomic, bool *submitted, - struct writeback_control *wbc, bool do_balance) + struct writeback_control *wbc, bool do_balance, + enum iostat_type io_type) { struct f2fs_sb_info *sbi = F2FS_P_SB(page); nid_t nid; @@ -1362,6 +1363,7 @@ static int __write_node_page(struct page *page, bool atomic, bool *submitted, .page = page, .encrypted_page = NULL, .submitted = false, + .io_type = io_type, }; trace_f2fs_writepage(page, NODE); @@ -1430,7 +1432,7 @@ redirty_out: static int f2fs_write_node_page(struct page *page, struct writeback_control *wbc) { - return __write_node_page(page, false, NULL, wbc, false); + return __write_node_page(page, false, NULL, wbc, false, FS_NODE_IO); } int fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode, @@ -1518,7 +1520,8 @@ continue_unlock: ret = __write_node_page(page, atomic && page == last_page, - &submitted, wbc, true); + &submitted, wbc, true, + FS_NODE_IO); if (ret) { unlock_page(page); f2fs_put_page(last_page, 0); @@ -1556,7 +1559,7 @@ out: } int sync_node_pages(struct f2fs_sb_info *sbi, struct writeback_control *wbc, - bool do_balance) + bool do_balance, enum iostat_type io_type) { pgoff_t index, end; struct pagevec pvec; @@ -1635,7 +1638,7 @@ continue_unlock: set_dentry_mark(page, 0); ret = __write_node_page(page, false, &submitted, - wbc, do_balance); + wbc, do_balance, io_type); if (ret) unlock_page(page); else if (submitted) @@ -1727,7 +1730,7 @@ static int f2fs_write_node_pages(struct address_space *mapping, diff = nr_pages_to_write(sbi, NODE, wbc); wbc->sync_mode = WB_SYNC_NONE; blk_start_plug(&plug); - sync_node_pages(sbi, wbc, true); + sync_node_pages(sbi, wbc, true, FS_NODE_IO); blk_finish_plug(&plug); wbc->nr_to_write = max((long)0, wbc->nr_to_write - diff); return 0; |