From 616407b06517361ce444dcc0960aeaf55b52da33 Mon Sep 17 00:00:00 2001 From: "Dr. David Alan Gilbert" Date: Mon, 27 Jan 2020 19:01:41 +0100 Subject: [PATCH 070/116] virtiofsd: Handle hard reboot MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit RH-Author: Dr. David Alan Gilbert Message-id: <20200127190227.40942-67-dgilbert@redhat.com> Patchwork-id: 93521 O-Subject: [RHEL-AV-8.2 qemu-kvm PATCH 066/112] virtiofsd: Handle hard reboot Bugzilla: 1694164 RH-Acked-by: Philippe Mathieu-Daudé RH-Acked-by: Stefan Hajnoczi RH-Acked-by: Sergio Lopez Pascual From: "Dr. David Alan Gilbert" Handle a mount hard reboot (without unmount) mount we get another 'init' which FUSE doesn't normally expect. Signed-off-by: Dr. David Alan Gilbert Reviewed-by: Daniel P. Berrangé Signed-off-by: Dr. David Alan Gilbert (cherry picked from commit e8556f49098b5d95634e592d79a97f761b76c96e) Signed-off-by: Miroslav Rezanina --- tools/virtiofsd/fuse_lowlevel.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/tools/virtiofsd/fuse_lowlevel.c b/tools/virtiofsd/fuse_lowlevel.c index 7d742b5..65f91da 100644 --- a/tools/virtiofsd/fuse_lowlevel.c +++ b/tools/virtiofsd/fuse_lowlevel.c @@ -2433,7 +2433,21 @@ void fuse_session_process_buf_int(struct fuse_session *se, goto reply_err; } } else if (in->opcode == FUSE_INIT || in->opcode == CUSE_INIT) { - goto reply_err; + if (fuse_lowlevel_is_virtio(se)) { + /* + * TODO: This is after a hard reboot typically, we need to do + * a destroy, but we can't reply to this request yet so + * we can't use do_destroy + */ + fuse_log(FUSE_LOG_DEBUG, "%s: reinit\n", __func__); + se->got_destroy = 1; + se->got_init = 0; + if (se->op.destroy) { + se->op.destroy(se->userdata); + } + } else { + goto reply_err; + } } err = EACCES; -- 1.8.3.1