diff options
| -rw-r--r-- | sys/fs/devfs/devfs_vnops.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/sys/fs/devfs/devfs_vnops.c b/sys/fs/devfs/devfs_vnops.c index e0672da..3d9a164 100644 --- a/sys/fs/devfs/devfs_vnops.c +++ b/sys/fs/devfs/devfs_vnops.c @@ -540,12 +540,28 @@ devfs_close_f(struct file *fp, struct thread *td) return (error); } -/* ARGSUSED */ static int devfs_fsync(struct vop_fsync_args *ap) { - if (!vn_isdisk(ap->a_vp, NULL)) + int error; + struct bufobj *bo; + struct devfs_dirent *de; + + if (!vn_isdisk(ap->a_vp, &error)) { + bo = &ap->a_vp->v_bufobj; + de = ap->a_vp->v_data; + if (error == ENXIO && bo->bo_dirty.bv_cnt > 0) { + printf("Device %s went missing before all of the data " + "could be written to it; expect data loss.\n", + de->de_dirent->d_name); + + error = vop_stdfsync(ap); + if (bo->bo_dirty.bv_cnt != 0 || error != 0) + panic("devfs_fsync: vop_stdfsync failed."); + } + return (0); + } return (vop_stdfsync(ap)); } |
