From: ebiederm@xmission.com (Eric W. Biederman)
To: Christoph Hellwig <hch@lst.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Jeremy Kerr <jk@ozlabs.org>, Arnd Bergmann <arnd@arndb.de>,
Oleg Nesterov <oleg@redhat.com>,
the arch/x86 maintainers <x86@kernel.org>,
linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
linux-fsdevel <linux-fsdevel@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: remove set_fs calls from the coredump code v6
Date: Wed, 06 May 2020 10:44:07 -0500 [thread overview]
Message-ID: <87lfm5cblk.fsf@x220.int.ebiederm.org> (raw)
In-Reply-To: <20200506063134.GA11391@lst.de> (Christoph Hellwig's message of "Wed, 6 May 2020 08:31:34 +0200")
Christoph Hellwig <hch@lst.de> writes:
> On Tue, May 05, 2020 at 03:28:50PM -0500, Eric W. Biederman wrote:
>> We probably can. After introducing a kernel_compat_siginfo that is
>> the size that userspace actually would need.
>>
>> It isn't something I want to mess with until this code gets merged, as I
>> think the set_fs cleanups are more important.
>>
>>
>> Christoph made some good points about how ugly the #ifdefs are in
>> the generic copy_siginfo_to_user32 implementation.
>
> Take a look at the series you are replying to, the magic x86 ifdefs are
> entirely gone from the common code :)
Interesting.
That is a different way of achieving that, and I don't hate it.
I still want whatever you are doing to settle before I touch that code
again. Removing the set_fs is important and I have other fish to fry
at the moment.
Eric
next prev parent reply other threads:[~2020-05-06 15:47 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-05 10:12 remove set_fs calls from the coredump code v6 Christoph Hellwig
2020-05-05 10:12 ` [PATCH 1/7] powerpc/spufs: fix copy_to_user while atomic Christoph Hellwig
2020-05-05 10:12 ` [PATCH 2/7] powerpc/spufs: stop using access_ok Christoph Hellwig
2020-05-05 10:12 ` [PATCH 3/7] powerpc/spufs: simplify spufs core dumping Christoph Hellwig
2020-05-05 10:12 ` [PATCH 4/7] signal: refactor copy_siginfo_to_user32 Christoph Hellwig
2020-05-05 10:12 ` [PATCH 5/7] binfmt_elf: remove the set_fs in fill_siginfo_note Christoph Hellwig
2020-05-05 10:12 ` [PATCH 6/7] binfmt_elf: remove the set_fs(KERNEL_DS) in elf_core_dump Christoph Hellwig
2020-05-05 10:12 ` [PATCH 7/7] binfmt_elf_fdpic: remove the set_fs(KERNEL_DS) in elf_fdpic_core_dump Christoph Hellwig
2020-05-05 16:52 ` remove set_fs calls from the coredump code v6 Linus Torvalds
2020-05-05 20:28 ` Eric W. Biederman
2020-05-06 6:31 ` Christoph Hellwig
2020-05-06 15:44 ` Eric W. Biederman [this message]
2020-05-05 20:34 ` Al Viro
2020-05-05 20:42 ` Christoph Hellwig
2020-05-05 20:47 ` Al Viro
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