sys/linux/test/gup_fast


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# Test for GUP fast.
# requires: arch=s390x

mmap(&(0x7f0000000000/0x2000)=nil, 0x2000, 0x3, 0x32, 0xffffffffffffffff, 0x0)

r0 = openat$urandom(0xffffffffffffff9c, &AUTO='/dev/urandom\x00', 0x0, 0x0)
read(r0, &(0x7f0000000000), 0x2000)
close(r0)

r1 = openat(0xffffffffffffff9c, &AUTO='./file1\x00', 0x105042, 0x1ff)
read(r1, &(0x7f0000000000), 0x2000)
close(r1)
munmap(&(0x7f0000000000/0x2000), 0x2000)