blkcg, writeback: Rename wbc_account_io() to wbc_account_cgroup_owner()

wbc_account_io() does a very specific job - try to see which cgroup is
actually dirtying an inode and transfer its ownership to the majority
dirtier if needed.  The name is too generic and confusing.  Let's
rename it to something more specific.

Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/buffer.c b/fs/buffer.c
index e450c55f6434..40547bbbea94 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -3093,7 +3093,7 @@ static int submit_bh_wbc(int op, int op_flags, struct buffer_head *bh,
 
         if (wbc) {
                 wbc_init_bio(wbc, bio);
-                wbc_account_io(wbc, bh->b_page, bh->b_size);
+                wbc_account_cgroup_owner(wbc, bh->b_page, bh->b_size);
         }
 
         submit_bio(bio);