MNT_SYNCHRONOUS
#define MOPT_SYNC { "sync", 0, MNT_SYNCHRONOUS, 0 }
dosync = (mntflags & MNT_SYNCHRONOUS) != 0;
if (mp->mnt_flag & MNT_SYNCHRONOUS)
(vp->v_mount && (vp->v_mount->mnt_flag & MNT_SYNCHRONOUS)))
{ MNT_SYNCHRONOUS, 0, "synchronous" }, \
MNT_SOFTDEP | MNT_SYMPERM | MNT_SYNCHRONOUS | MNT_UNION | MNT_NFS4ACLS | \
MNT_SYNCHRONOUS | \
#define ST_SYNCHRONOUS MNT_SYNCHRONOUS
if (mp->mnt_flag & MNT_SYNCHRONOUS)
mp->mnt_flag |= MNT_SYNCHRONOUS;
if (mp->mnt_flag & MNT_SYNCHRONOUS)