Commit 64c90d9c authored Oct 22, 2018 by Chao Yu Committed by Greg Kroah-Hartman Nov 13, 2018

f2fs: fix to account IO correctly for cgroup writeback



[ Upstream commit 78efac537de33faab9a4302cc05a70bb4a8b3b63 ]

Now, we have supported cgroup writeback, it depends on correctly IO
account of specified filesystem.

But in commit d1b3e72d ("f2fs: submit bio of in-place-update pages"),
we split write paths from f2fs_submit_page_mbio() to two:
- f2fs_submit_page_bio() for IPU path
- f2fs_submit_page_bio() for OPU path

But still we account write IO only in f2fs_submit_page_mbio(), result in
incorrect IO account, fix it by adding missing IO account in IPU path.

Fixes: d1b3e72d ("f2fs: submit bio of in-place-update pages")
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 5151f440

fs/f2fs/data.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -456,6 +456,10 @@ int f2fs_submit_page_bio(struct f2fs_io_info *fio)
		bio_put(bio);
		return -EFAULT;
		}

		if (fio->io_wbc && !is_read_io(fio->op))
		wbc_account_io(fio->io_wbc, page, PAGE_SIZE);

		bio_set_op_attrs(bio, fio->op, fio->op_flags);

		__submit_bio(fio->sbi, bio, fio->type);