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Re: [PATCH 084/104] Virtiofsd: fix memory leak on fuse queueinfo
From: |
Dr. David Alan Gilbert |
Subject: |
Re: [PATCH 084/104] Virtiofsd: fix memory leak on fuse queueinfo |
Date: |
Thu, 16 Jan 2020 12:19:56 +0000 |
User-agent: |
Mutt/1.13.0 (2019-11-30) |
* address@hidden (address@hidden) wrote:
> > * 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>
Thank you!
Dave
> 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
>
--
Dr. David Alan Gilbert / address@hidden / Manchester, UK