From: "Luis R. Rodriguez" <mcgrof@kernel.org>
To: Alan Cox <alan@linux.intel.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Andy Lutomirski <luto@kernel.org>,
"Luis R. Rodriguez" <mcgrof@kernel.org>,
Theodore Ts'o <tytso@mit.edu>,
Linux FS Devel <linux-fsdevel@vger.kernel.org>,
Stephen Boyd <stephen.boyd@linaro.org>,
"Li, Yi" <yi1.li@linux.intel.com>,
Peter Zijlstra <peterz@infradead.org>,
Jonathan Corbet <corbet@lwn.net>,
"Eric W. Biederman" <ebiederm@xmission.com>,
"Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com>,
Greg KH <gregkh@linuxfoundation.org>,
"Fuzzey, Martin" <mfuzzey@parkeon.com>,
Linux API <linux-api@vger.kernel.org>,
Daniel Wagner <wagi@monom.org>,
David Woodhouse <dwmw2@infradead.org>,
jewalt@lgsinnovations.com, rafal@milecki.pl,
Arend Van Spriel <arend.vanspriel@broadcom.com>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Moritz Fischer <moritz.fischer@ettus.com>,
Petr Mladek <pmladek@suse.com>,
Johannes Berg <johannes.berg@intel.com>,
Emmanuel Grumbach <emmanuel.grumbach@intel.com>,
Luca Coelho <luciano.coelho@intel.com>,
Kalle Valo <kvalo@codeaurora.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Kees Cook <keescook@chromium.org>,
AKASHI Takahiro <takahiro.akashi@linaro.org>,
David Howells <dhowells@redhat.com>,
Peter Jones <pjones@redhat.com>,
Hans de G oede <hdegoede@redhat.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2] firmware: fix sending -ERESTARTSYS due to signal on fallback
Date: Wed, 7 Jun 2017 19:15:07 +0200 [thread overview]
Message-ID: <20170607171507.GL27288@wotan.suse.de> (raw)
In-Reply-To: <1496838351.5682.58.camel@linux.intel.com>
On Wed, Jun 07, 2017 at 01:25:51PM +0100, Alan Cox wrote:
> > What's wrong with saying that the only way to interrupt firmware
> > loading is to kill the process? So ctrl-c will no longer interrupt
> > it, but I do not think that ease of aborting firmware update is
> > primary goal here. I consider simple is good here.
>
> Agreed 100%. The user process did not ask for firmware load, it asked
> for an I/O operation. Semantically it should appear as if someone else
> did the firmware load and it just had to wait for it to happen.
Fine by me ! Will wrap up the patch for the new killable swait then.
I suppose noting it as a stable fix is worth it given the known issues
with for example Android killing loaders unexpectedly.
Unless I hear otherwise I'll also provide a follow up to return -EINTR instead
of -EAGAIN if swait returned -ERESTARTSYS, this way at least userspace could
tell a signal was definitely received. I *don't* think that follow up is
required for stable though.
Luis
next prev parent reply other threads:[~2017-06-07 17:15 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20170524205658.GK8951@wotan.suse.de>
[not found] ` <20170524214027.7775-1-mcgrof@kernel.org>
[not found] ` <CALCETrXUrirO-vg3M+MGhn=0gZTwx0phsRDS4TCwWWgNYC6RsA@mail.gmail.com>
[not found] ` <CAB=NE6VENGmTEZ3_8EWmv6bhT81k=szg0_POWJm2SP+V21CeBw@mail.gmail.com>
[not found] ` <CALCETrU4__YUGk36PN=FbuEf0SBaTrxQQqm4sWs2NrZ+6WN7jA@mail.gmail.com>
[not found] ` <CANh8QzwPb_+RKs5QVt7mdFk8h_rOMVS3j9m0OADgvzBtNqBBLg@mail.gmail.com>
[not found] ` <87fufr3mdy.fsf@xmission.com>
[not found] ` <20170526194640.GS8951@wotan.suse.de>
[not found] ` <CAKdAkRTrcTVOAP5GK-R=Au_tL5WqSn5UkQEzNe5NcCWXS8mbtA@mail.gmail.com>
[not found] ` <CAB=NE6Wh9inuA-R9-zegnvJV=s_6o_doMNDOhBVhYn4ZQ_Ku5Q@mail.gmail.com>
[not found] ` <20170526215518.GB40877@dtor-ws>
[not found] ` <20170605202410.GQ8951@wotan.suse.de>
[not found] ` <59367025.3020901@parkeon.com>
[not found] ` <20170606163401.GA27288@wotan.suse.de>
2017-06-06 17:52 ` [PATCH v2] firmware: fix sending -ERESTARTSYS due to signal on fallback Luis R. Rodriguez
[not found] ` <1496760796.5682.48.camel@linux.intel.com>
[not found] ` <20170606164734.GB27288@wotan.suse.de>
2017-06-06 17:54 ` Luis R. Rodriguez
2017-06-06 22:11 ` Theodore Ts'o
2017-06-07 0:22 ` Luis R. Rodriguez
2017-06-07 4:56 ` Andy Lutomirski
2017-06-07 6:25 ` Dmitry Torokhov
2017-06-07 12:25 ` Alan Cox
2017-06-07 17:15 ` Luis R. Rodriguez [this message]
2017-06-09 1:14 ` Andy Lutomirski
2017-06-09 1:33 ` Luis R. Rodriguez
2017-06-09 21:29 ` Luis R. Rodriguez
2017-06-07 17:08 ` Luis R. Rodriguez
2017-06-07 17:54 ` Martin Fuzzey
2017-06-09 1:10 ` Luis R. Rodriguez
2017-06-09 1:57 ` Luis R. Rodriguez
2017-06-09 7:40 ` Martin Fuzzey
2017-06-09 21:12 ` Luis R. Rodriguez
2017-06-09 22:55 ` Luis R. Rodriguez
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