diff mbox series

[v2,064/109] virtiofsd: Handle hard reboot

Message ID 20200121122433.50803-65-dgilbert@redhat.com (mailing list archive)
State New, archived
Headers show
Series virtiofs daemon [all] | expand

Commit Message

Dr. David Alan Gilbert Jan. 21, 2020, 12:23 p.m. UTC 
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>

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 <dgilbert@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
---
 tools/virtiofsd/fuse_lowlevel.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/tools/virtiofsd/fuse_lowlevel.c b/tools/virtiofsd/fuse_lowlevel.c
index 5565f78208..7dafe02db8 100644
--- a/tools/virtiofsd/fuse_lowlevel.c
+++ b/tools/virtiofsd/fuse_lowlevel.c
@@ -2435,7 +2435,21 @@  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;