From: Jack Qiu <jack.qiu@huawei.com>
Date: Mon, 31 Aug 2020 01:58:02 +0000 (+0800)
Subject: f2fs: correct statistic of APP_DIRECT_IO/APP_DIRECT_READ_IO
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=335cac8b25fd4601160080d2c012154c2f3b8676;p=linux.git

f2fs: correct statistic of APP_DIRECT_IO/APP_DIRECT_READ_IO

Miss to update APP_DIRECT_IO/APP_DIRECT_READ_IO when receiving async DIO.
For example: fio -filename=/data/test.0 -bs=1m -ioengine=libaio -direct=1
		-name=fill -size=10m -numjobs=1 -iodepth=32 -rw=write

Signed-off-by: Jack Qiu <jack.qiu@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 6a20f2e664c4c..a490e1b219305 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -3673,12 +3673,18 @@ static ssize_t f2fs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
 									err);
 			if (!do_opu)
 				set_inode_flag(inode, FI_UPDATE_WRITE);
+		} else if (err == -EIOCBQUEUED) {
+			f2fs_update_iostat(F2FS_I_SB(inode), APP_DIRECT_IO,
+						count - iov_iter_count(iter));
 		} else if (err < 0) {
 			f2fs_write_failed(mapping, offset + count);
 		}
 	} else {
 		if (err > 0)
 			f2fs_update_iostat(sbi, APP_DIRECT_READ_IO, err);
+		else if (err == -EIOCBQUEUED)
+			f2fs_update_iostat(F2FS_I_SB(inode), APP_DIRECT_READ_IO,
+						count - iov_iter_count(iter));
 	}
 
 out: