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Subject: Re: should a copy_file_range(2) syscall be interrupted via a signal
To: Rick Macklem <rmacklem@uoguelph.ca>,
 "freebsd-current@FreeBSD.org" <freebsd-current@FreeBSD.org>
Cc: "kib@freebsd.org" <kib@FreeBSD.org>, Alan Somers <asomers@freebsd.org>
References: <YTXPR01MB0285E79DFAAE250FD7A7A181DDF50@YTXPR01MB0285.CANPRD01.PROD.OUTLOOK.COM>
From: Hans Petter Selasky <hps@selasky.org>
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Date: Fri, 5 Jul 2019 15:58:45 +0200
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On 2019-07-05 02:28, Rick Macklem wrote:
> I am thinking that copy_file_range(2) should do this also.
> However, if it returns an error, it is impossible for the caller to know how much
> of the data range got copied.

How can you kill a program stuck on copy_file_range(2) w/o catching signals?

--HPS