vfsop_umount_t    132 include/sys/mount.h typedef int (*vfsop_umount_t)(mount_t);
vfsop_umount_t     54 usr/server/fs/devfs/devfs_vnops.c #define devfs_unmount	((vfsop_umount_t)vfs_nullop)
vfsop_umount_t     69 usr/server/fs/fifofs/fifo_vnops.c #define fifo_unmount	((vfsop_umount_t)vfs_nullop)