Messages in this thread | | | Date | Mon, 14 Jan 2002 19:08:34 +0100 | From | Christoph Hellwig <> | Subject | Re: [linux-lvm] Re: [RFLART] kdev_t in ioctls |
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On Mon, Jan 14, 2002 at 10:01:25AM -0800, Linus Torvalds wrote: > > On Mon, 14 Jan 2002, Alexander Viro wrote: > > > > Linus, at least some ioctls (e.g. lvm ones) pass kdev_t from/to > > userland. While the common policy with ioctls is "anything goes", this > > kind of abuse is IMNSHO over the top. > > That's completely bogus. > > The good news is that the bit-for-bit representation of old kdev_t and > "dev_t" are obviously 100% the same, so we should just make the damn thing > be dev_t, and user land will never notice anything.
Glibc disagrees with you (bits/types.h):
typedef __u_quad_t __dev_t; /* Type of device numbers. */
We'd have to use __kernel_dev_t instead which again pulls kernel headers in..
Christoph
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