RE: [PATCH 084/104] Virtiofsd: fix memory leak on fuse queueinfo

[address@hidden]

> * Misono Tomohiro (address@hidden) wrote:
> > > From: Liu Bo <address@hidden>
> > >
> > > For fuse's queueinfo, both queueinfo array and queueinfos are
> > > allocated in
> > > fv_queue_set_started() but not cleaned up when the daemon process quits.
> > >
> > > This fixes the leak in proper places.
> > >
> > > Signed-off-by: Liu Bo <address@hidden>
> > > Signed-off-by: Eric Ren <address@hidden>
> > > ---
> > >  tools/virtiofsd/fuse_virtio.c | 9 +++++++++
> > >  1 file changed, 9 insertions(+)
> > >
> > > diff --git a/tools/virtiofsd/fuse_virtio.c
> > > b/tools/virtiofsd/fuse_virtio.c index 7b22ae8d4f..a364f23d5d 100644
> > > --- a/tools/virtiofsd/fuse_virtio.c
> > > +++ b/tools/virtiofsd/fuse_virtio.c
> > > @@ -671,6 +671,8 @@ static void fv_queue_set_started(VuDev *dev, int 
> > > qidx, bool started)
> > >          }
> > >          close(ourqi->kill_fd);
> > >          ourqi->kick_fd = -1;
> > > +        free(vud->qi[qidx]);
> > > +        vud->qi[qidx] = NULL;
> > >      }
> > >  }
> > >
> > > @@ -878,6 +880,13 @@ int virtio_session_mount(struct fuse_session
> > > *se)  void virtio_session_close(struct fuse_session *se)  {
> > >      close(se->vu_socketfd);
> >
> > I beleve above close() should be removed as it is called 6 line below.
> 
> You're right, I think that's my fault from when I merged this patch with 
> 'Virtiofsd: fix segfault when quit before dev init'.
> 
> Fixed.

Given that:
 Reviewed-by: Misono Tomohiro <address@hidden>

Thanks.

> Thanks.
> 
> Dave
> 
> > > +
> > > +    if (!se->virtio_dev) {
> > > +        return;
> > > +    }
> > > +
> > > +    close(se->vu_socketfd);
> > > +    free(se->virtio_dev->qi);
> > >      free(se->virtio_dev);
> > >      se->virtio_dev = NULL;
> > >  }
> > > --
> > > 2.23.0
> >
> --
> Dr. David Alan Gilbert / address@hidden / Manchester, UK