On Wed, 2018-10-10 at 10:52 +-0900, Damien Le Moal wrote: +AD4 +ACM-define BLKREPORTZONE +AF8-IOWR(0x12, 130, struct blk+AF8-zone+AF8-report) +AD4 +ACM-define BLKRESETZONE +AF8-IOW(0x12, 131, struct blk+AF8-zone+AF8-range) +AD4 +-+ACM-define BLKGETZONESZ +AF8-IOW(0x12, 132, unsigned int) >From Documentation/ioctl/botching-up-ioctls.txt, a collection of lessons learned the hard way about ioctls: +ACo Only use fixed sized integers. To avoid conflicts with typedefs in userspace the kernel has special types like +AF8AXw-u32, +AF8AXw-s64. Use them. Please follow that advice. Thanks, Bart.
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