r0 = openat$procfs(0xffffffffffffff9c, &(0x7f0000007140)='/proc/sysvipc/msg\x00', 0x0, 0x0)
mmap$IORING_OFF_SQ_RING(&(0x7f0000ff4000/0xa000)=nil, 0xa000, 0x0, 0x10, r0, 0x0)