4.4BSD/usr/share/man/cat2/munmap.0

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MUNMAP(2)                   BSD Programmer's Manual                  MUNMAP(2)

NNAAMMEE
     mmuunnmmaapp - remove a mapping

SSYYNNOOPPSSIISS
     mmuunnmmaapp(_c_a_d_d_r___t _a_d_d_r, _s_i_z_e___t _l_e_n);

DDEESSCCRRIIPPTTIIOONN
     The mmuunnmmaapp() system call deletes the mappings for the specified address
     range, and causes further references to addresses within the range to
     generate invalid memory references.

SSEEEE AALLSSOO
     msync(2),  madvise(2),  mprotect(2),  mincore(2)

HHIISSTTOORRYY
     The mmuunnmmaapp() function first appeared in 4.4BSD.

4.4BSD                           June 9, 1993                                1