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Wed, 15 Jan 2020 16:57:15 +0000 (UTC) Date: Wed, 15 Jan 2020 16:57:12 +0000 From: "Dr. David Alan Gilbert" To: Misono Tomohiro Subject: Re: [PATCH 084/104] Virtiofsd: fix memory leak on fuse queueinfo Message-ID: <20200115165712.GE3811@work-vm> References: <20191212163904.159893-85-dgilbert@redhat.com> <20200115112006.32659-1-misono.tomohiro@jp.fujitsu.com> MIME-Version: 1.0 In-Reply-To: <20200115112006.32659-1-misono.tomohiro@jp.fujitsu.com> User-Agent: Mutt/1.13.0 (2019-11-30) X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-MC-Unique: 39Fm00QKMvSnhHFNt-eUvw-1 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Content-Disposition: inline X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 207.211.31.120 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-devel@nongnu.org, stefanha@redhat.com, vgoyal@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" * Misono Tomohiro (misono.tomohiro@jp.fujitsu.com) wrote: > > From: Liu Bo > >=20 > > 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= . > >=20 > > This fixes the leak in proper places. > >=20 > > Signed-off-by: Liu Bo > > Signed-off-by: Eric Ren > > --- > > tools/virtiofsd/fuse_virtio.c | 9 +++++++++ > > 1 file changed, 9 insertions(+) > >=20 > > diff --git a/tools/virtiofsd/fuse_virtio.c b/tools/virtiofsd/fuse_virti= o.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 qi= dx, bool started) > > } > > close(ourqi->kill_fd); > > ourqi->kick_fd =3D -1; > > + free(vud->qi[qidx]); > > + vud->qi[qidx] =3D NULL; > > } > > } > > =20 > > @@ -878,6 +880,13 @@ int virtio_session_mount(struct fuse_session *se) > > void virtio_session_close(struct fuse_session *se) > > { > > close(se->vu_socketfd); >=20 > 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. Thanks. Dave > > + > > + if (!se->virtio_dev) { > > + return; > > + } > > + > > + close(se->vu_socketfd); > > + free(se->virtio_dev->qi); > > free(se->virtio_dev); > > se->virtio_dev =3D NULL; > > } > > --=20 > > 2.23.0 >=20 -- Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK