On Wed, 2022-01-26 at 17:22 +0100, Ilya Dryomov wrote:
> On Tue, Jan 25, 2022 at 10:08 PM Jeff Layton <jlayton@xxxxxxxxxx> wrote:
> >
> > The reference acquired by try_prep_async_create is currently leaked.
> > Ensure we put it.
> >
> > Fixes: 9a8d03ca2e2c ("ceph: attempt to do async create when possible")
> > Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx>
> > ---
> > fs/ceph/file.c | 2 ++
> > 1 file changed, 2 insertions(+)
> >
> > diff --git a/fs/ceph/file.c b/fs/ceph/file.c
> > index ea1e9ac6c465..cbe4d5a5cde5 100644
> > --- a/fs/ceph/file.c
> > +++ b/fs/ceph/file.c
> > @@ -766,8 +766,10 @@ int ceph_atomic_open(struct inode *dir, struct dentry *dentry,
> > restore_deleg_ino(dir, req->r_deleg_ino);
> > ceph_mdsc_put_request(req);
> > try_async = false;
> > + ceph_put_string(rcu_dereference_raw(lo.pool_ns));
> > goto retry;
> > }
> > + ceph_put_string(rcu_dereference_raw(lo.pool_ns));
> > goto out_req;
> > }
> > }
> > --
> > 2.34.1
> >
>
> Hi Jeff,
>
> Where is the try_prep_async_create() reference put in case of success?
> It doesn't look like ceph_finish_async_create() actually consumes it.
>
The second call above puts it in the case of success, or in the case of
any error that isn't -EJUKEBOX.
--
Jeff Layton <jlayton@xxxxxxxxxx>
