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Date:   Thu, 30 May 2019 18:08:24 +0200
From:   Oleg Nesterov <oleg@redhat.com>
To:     "Eric W. Biederman" <ebiederm@xmission.com>
Cc:     Deepa Dinamani <deepa.kernel@gmail.com>,
        Al Viro <viro@ZenIV.linux.org.uk>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        linux-kernel@vger.kernel.org, akpm@linux-foundation.org,
        arnd@arndb.de, dbueso@suse.de, axboe@kernel.dk, dave@stgolabs.net,
        e@80x24.org, jbaron@akamai.com, linux-fsdevel@vger.kernel.org,
        linux-aio@kvack.org, omar.kilani@gmail.com, tglx@linutronix.de,
        stable@vger.kernel.org
Subject: Re: pselect/etc semantics
Message-ID: <20190530160823.GI22536@redhat.com>
References: <20190522032144.10995-1-deepa.kernel@gmail.com>
 <20190529161157.GA27659@redhat.com>
 <87woi8rt96.fsf@xmission.com>
 <871s0grlzo.fsf@xmission.com>
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On 05/30, Eric W. Biederman wrote:
>
> ebiederm@xmission.com (Eric W. Biederman) writes:
>
> > Which means I believe we have a semantically valid change in behavior
> > that is causing a regression.
>
> I haven't made a survey of all of the functions yet but
> fucntions return -ENORESTARTNOHAND will never return -EINTR and are
> immune from this problem.

Hmm. handle_signal:

		case -ERESTARTNOHAND:
			regs->ax = -EINTR;
			break;

but I am not sure I understand which problem do you mean..

Oleg.