Re: man page update (fcntl(2) new set/get write hints)
From: Florian Weimer <hidden>
Date: 2017-08-28 09:07:14
Possibly related (same subject, not in this thread)
- 2017-09-11 · Re: man page update (fcntl(2) new set/get write hints) · Michael Kerrisk (man-pages) <hidden>
- 2017-09-03 · Re: man page update (fcntl(2) new set/get write hints) · Michael Kerrisk (man-pages) <hidden>
- 2017-08-28 · Re: man page update (fcntl(2) new set/get write hints) · Michael Kerrisk (man-pages) <hidden>
- 2017-08-28 · Re: man page update (fcntl(2) new set/get write hints) · Michael Kerrisk (man-pages) <hidden>
- 2017-08-28 · Re: man page update (fcntl(2) new set/get write hints) · Jens Axboe <hidden>
On 08/24/2017 12:41 AM, Michael Kerrisk (man-pages) wrote:
+.TP +.BR F_GET_RW_HINT " (\fIuint64_t\fP; since Linux 4.13)" +Returns the value of the read/write hint associated with the underlying inode +for the file descriptor. +.TP +.BR F_SET_RW_HINT " (\fIuint64_t\fP; since Linux 4.13)" +Sets the read/write hint value associated with the underlying inode for the +file descriptor.
Surely the arguments are of pointer type for reads *and* writes? There is no convenient way 32-bit userspace can pass a 64-bit integer through are variadic dispatcher interface such as ioctl/fcntl/futex. Thanks, Florian -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html