diff --git a/sys/fs/fuse/fuse_device.c b/sys/fs/fuse/fuse_device.c index 087316e86e90fd..0a5da63c1f5436 100644 --- a/sys/fs/fuse/fuse_device.c +++ b/sys/fs/fuse/fuse_device.c @@ -439,7 +439,6 @@ fuse_device_write(struct cdev *dev, struct uio *uio, int ioflag) err = devfs_get_cdevpriv((void **)&data); if (err != 0) return (err); - mp = data->mp; if (uio->uio_resid < sizeof(struct fuse_out_header)) { SDT_PROBE2(fusefs, , device, trace, 1, @@ -542,6 +541,13 @@ fuse_device_write(struct cdev *dev, struct uio *uio, int ioflag) } else if (ohead.unique == 0){ /* unique == 0 means asynchronous notification */ SDT_PROBE1(fusefs, , device, fuse_device_write_notify, &ohead); + mp = data->mp; + vfs_ref(mp); + err = vfs_busy(mp, 0); + vfs_rel(mp); + if (err) + return (err); + switch (ohead.error) { case FUSE_NOTIFY_INVAL_ENTRY: err = fuse_internal_invalidate_entry(mp, uio); @@ -566,6 +572,7 @@ fuse_device_write(struct cdev *dev, struct uio *uio, int ioflag) /* Not implemented */ err = ENOSYS; } + vfs_unbusy(mp); } else { /* no callback at all! */ SDT_PROBE1(fusefs, , device, fuse_device_write_missing_ticket,