From: Jens Axboe <axboe@kernel.dk>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Hannes Reinecke <hare@suse.com>,
Matthew Wilcox <willy@infradead.org>,
David Hildenbrand <david@redhat.com>,
Nikolay Borisov <nborisov@suse.com>,
linux-block <linux-block@vger.kernel.org>,
Linux FS-devel Mailing List <linux-fsdevel@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 1/2] io_uring: fix big-endian compat signal mask handling
Date: Mon, 25 Mar 2019 10:15:08 -0600 [thread overview]
Message-ID: <52bbd23b-3bda-31fc-3f38-16749b90be4c@kernel.dk> (raw)
In-Reply-To: <CAK8P3a2SpydaLZijzUXxCzMKSEv3ymfpOCO4xSZOVfz2cwFxAQ@mail.gmail.com>
On 3/25/19 10:11 AM, Arnd Bergmann wrote:
> On Mon, Mar 25, 2019 at 5:05 PM Jens Axboe <axboe@kernel.dk> wrote:
>>
>> On 3/25/19 8:34 AM, Arnd Bergmann wrote:
>>> On big-endian architectures, the signal masks are differnet
>>> between 32-bit and 64-bit tasks, so we have to use a different
>>> function for reading them from user space.
>>>
>>> io_cqring_wait() initially got this wrong, and always interprets
>>> this as a native structure. This is ok on x86 and most arm64,
>>> but not on s390, ppc64be, mips64be, sparc64 and parisc.
>>
>> Thanks Arnd, applied.
>>
>> Was there a 2/2 patch? I only received this one, 1/2.
>
> Sorry I missed you on Cc:
> https://lore.kernel.org/lkml/20190325144737.703921-1-arnd@arndb.de/T/#u
>
> This one went out to all the affected arch maintainers.
Ah gotcha, just wanted to make sure I didn't miss a patch.
--
Jens Axboe
next prev parent reply other threads:[~2019-03-25 16:15 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-25 14:34 [PATCH 1/2] io_uring: fix big-endian compat signal mask handling Arnd Bergmann
2019-03-25 14:47 ` [PATCH 2/2] arch: add pidfd and io_uring syscalls everywhere Arnd Bergmann
2019-03-25 17:37 ` Paul Burton
2019-03-26 8:40 ` Arnd Bergmann
2019-03-30 9:42 ` Heiko Carstens
2019-03-31 9:47 ` Michael Ellerman
2019-03-31 16:28 ` Arnd Bergmann
2019-04-03 1:19 ` Michael Ellerman
2019-04-01 8:19 ` Geert Uytterhoeven
2019-04-03 2:47 ` Michael Ellerman
2019-04-03 11:11 ` Will Deacon
2019-04-03 13:49 ` Jens Axboe
2019-04-03 15:19 ` Will Deacon
2019-04-03 15:39 ` Jens Axboe
2019-04-03 15:49 ` Will Deacon
2019-04-03 15:51 ` Jens Axboe
2019-04-04 6:08 ` Michael Ellerman
2019-03-25 16:05 ` [PATCH 1/2] io_uring: fix big-endian compat signal mask handling Jens Axboe
2019-03-25 16:11 ` Arnd Bergmann
2019-03-25 16:15 ` Jens Axboe [this message]
2019-03-25 16:19 ` James Bottomley
2019-03-25 16:23 ` Jens Axboe
2019-03-25 16:24 ` Arnd Bergmann
2019-03-26 0:13 ` James Bottomley
2019-03-26 8:35 ` Arnd Bergmann
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