r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000040)='/sys/power/sync_on_suspend', 0x22902, 0x0) pwritev(r0, &(0x7f0000000200)=[{&(0x7f0000000100)='\\', 0x1}], 0x1, 0x0, 0x0)