Trying to track down this failing ioctl (on a file opened O_DIRECT): strace showed: ioctl(4, _IOC(_IOC_WRITE, 0x95, 0x2, 0x4), 0x7ffe5b491664) = -1 ENOTTY (Inappropriate ioctl for device) I could find ioctls for 0x94 but not 0x95 in kernel source ... any idea what ioctl _IOC_WRITE, 0x95, 0x2, 0x4) is? Wanted to make sure cifs.ko wasn't missing handling some important ioctl for O_DIRECT workloads ... -- Thanks, Steve
