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/kernel/linux/linux-6.6/tools/testing/selftests/mm/
H A Dcow.c75 int child_ready[2]; member
81 if (pipe(comm_pipes->child_ready) < 0) in setup_comm_pipes()
84 close(comm_pipes->child_ready[0]); in setup_comm_pipes()
85 close(comm_pipes->child_ready[1]); in setup_comm_pipes()
94 close(comm_pipes->child_ready[0]); in close_comm_pipes()
95 close(comm_pipes->child_ready[1]); in close_comm_pipes()
110 write(comm_pipes->child_ready[1], "0", 1); in child_memcmp_fn()
151 write(comm_pipes->child_ready[1], "0", 1); in child_vmsplice_memcmp_fn()
188 while (read(comm_pipes.child_ready[0], &buf, 1) != 1) in do_test_cow_in_parent()
283 write(comm_pipes.child_ready[ in do_test_vmsplice_in_parent()
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