diff options
| author | Chao Yu <yuchao0@huawei.com> | 2017-08-02 23:21:48 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-08-09 21:43:58 -0700 |
| commit | b0af6d491a6b5f5622fa91ac75f34f3640f862c4 (patch) | |
| tree | d70ceb1814e1f9797566f72242141a698a727907 /fs/f2fs/node.c | |
| parent | 35ee82ca133a58011e648a407d4ab13275c975d4 (diff) | |
| download | lwn-b0af6d491a6b5f5622fa91ac75f34f3640f862c4.tar.gz lwn-b0af6d491a6b5f5622fa91ac75f34f3640f862c4.zip | |
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 0176035d8ced..9168c304fd58 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -1332,7 +1332,8 @@ 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; @@ -1345,6 +1346,7 @@ 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); @@ -1413,7 +1415,7 @@ 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, @@ -1501,7 +1503,8 @@ 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); @@ -1539,7 +1542,7 @@ 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; @@ -1618,7 +1621,7 @@ 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) @@ -1707,7 +1710,7 @@ 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; |