Re: [PATCH] Revised timerfd() interface

[corbet@lwn.net (Jonathan Corbet)]

Sorry for the late commentary...as I looked this over, one thing popped
into my mind....

> b) Make the 'clockid' immutable: it can only be set
>    if 'ufd' is -1 -- that is, on the timerfd() call that
>    first creates a timer.

timerfd() is looking increasingly like a multiplexor system call in
disguise.  There is no form of invocation which uses all of the
arguments.  Are we sure we wouldn't rather have something like:

	timerfd_open(clock);
	timerfd_adjust(fd, new_time, old_time);

?

jon
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