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f2fs: support read iostat

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Adds to support accounting read IOs from userspace/kernel.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu
2020-04-16 18:16:56 +08:00
committed by Jaegeuk Kim
parent df42339975
commit 8b83ac81f4
8 changed files with 118 additions and 31 deletions
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8
fs/f2fs/node.c
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@@ -1300,7 +1300,13 @@ static int read_node_page(struct page *page, int op_flags)
}
fio.new_blkaddr = fio.old_blkaddr = ni.blk_addr;
return f2fs_submit_page_bio(&fio);
err = f2fs_submit_page_bio(&fio);
if (!err)
f2fs_update_iostat(sbi, FS_NODE_READ_IO, F2FS_BLKSIZE);
return err;
}
/*