From: Catalin Marinas <catalin.marinas@arm.com>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
Will Deacon <will.deacon@arm.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [REVIEW][PATCH 00/15] signal/arm64: siginfo cleanups
Date: Wed, 26 Sep 2018 18:38:42 +0100 [thread overview]
Message-ID: <20180926173841.GD175719@arrakis.emea.arm.com> (raw)
In-Reply-To: <871s9j462u.fsf@xmission.com>
Hi Eric,
On Mon, Sep 24, 2018 at 11:07:05AM +0200, Eric W. Biederman wrote:
> This is the continuation of my work to sort out signaling of exceptions
> with siginfo. The old signal sending functions by taking a siginfo
> argument resulted in their callers having to deal with the fiddly nature
> of siginfo directly. In small numbers of callers this is not a problem
> but in the number of callers in the kernel this resulted in cases
> where fields were not initialized or improperly initialized before
> being passed to userspace.
>
> To avoid having to worry about those issues I have added new signal
> sending functions that each deal wit a different siginfo case. When
> using these functions there is no room for the fiddly nature of siginfo
> to cause mistakes.
>
> This is my set of changes to update arm64 to use those functions.
> Along with some refactoring so those functions can be cleanly used.
>
> Folks please review and double check me. I think I have kept these
> changes simple and obviously correct but I am human and mess up
> sometimes.
Nice clean-up, thanks. I started reviewing the patches, I should finish
by tomorrow (I also applied them locally to give some testing).
> After these patches have had a chance to be reviewed I plan to merge
> them by my siginfo tree. If you would rather take them in the arm64
> tree let me know. All of the prerequisites should have been merged
> through Linus's tree several releases ago.
Either way works for me. There is a trivial conflict in
force_signal_inject() with the arm64 for-next/core tree so I could as
well put them on top of this branch and send them during the 4.20
merging window.
--
Catalin
next prev parent reply other threads:[~2018-09-26 17:38 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-24 9:07 [REVIEW][PATCH 00/15] signal/arm64: siginfo cleanups Eric W. Biederman
2018-09-24 9:07 ` Eric W. Biederman
2018-09-24 9:10 ` [REVIEW][PATCH 01/15] signal/arm64: Push siginfo generation into arm64_notify_die Eric W. Biederman
2018-09-24 9:10 ` Eric W. Biederman
2018-09-24 9:10 ` [REVIEW][PATCH 02/15] signal/arm64: Remove unneeded tsk parameter from arm64_force_sig_info Eric W. Biederman
2018-09-24 9:10 ` Eric W. Biederman
2018-09-24 9:10 ` [REVIEW][PATCH 03/15] signal/arm64: Factor out arm64_show_signal " Eric W. Biederman
2018-09-24 9:10 ` Eric W. Biederman
2018-09-24 9:10 ` [REVIEW][PATCH 04/15] signal/arm64: Factor set_thread_esr out of __do_user_fault Eric W. Biederman
2018-09-24 9:10 ` Eric W. Biederman
2018-09-24 9:10 ` [REVIEW][PATCH 05/15] signal/arm64: Consolidate the two hwpoison cases in do_page_fault Eric W. Biederman
2018-09-24 9:10 ` Eric W. Biederman
2018-09-24 9:10 ` [REVIEW][PATCH 06/15] signal/arm64: For clarity separate the 3 signal sending " Eric W. Biederman
2018-09-24 9:10 ` Eric W. Biederman
2018-09-24 9:10 ` [REVIEW][PATCH 07/15] signal/arm64: Expand __do_user_fault and remove it Eric W. Biederman
2018-09-24 9:10 ` Eric W. Biederman
2018-09-24 9:10 ` [REVIEW][PATCH 08/15] signal/arm64: Only perform one esr_to_fault_info call in do_page_fault Eric W. Biederman
2018-09-24 9:10 ` Eric W. Biederman
2018-09-24 9:10 ` [REVIEW][PATCH 09/15] signal/arm64: Only call set_thread_esr once " Eric W. Biederman
2018-09-24 9:10 ` Eric W. Biederman
2018-09-24 9:10 ` [REVIEW][PATCH 10/15] signal/arm64: Add and use arm64_force_sig_fault where appropriate Eric W. Biederman
2018-09-24 9:10 ` Eric W. Biederman
2018-09-24 9:10 ` [REVIEW][PATCH 11/15] signal/arm64: Add and use arm64_force_sig_mceerr as appropriate Eric W. Biederman
2018-09-24 9:10 ` Eric W. Biederman
2018-09-24 9:10 ` [REVIEW][PATCH 12/15] signal/arm64: Remove arm64_force_sig_info Eric W. Biederman
2018-09-24 9:10 ` Eric W. Biederman
2018-09-24 9:10 ` [REVIEW][PATCH 13/15] signal/arm64: In ptrace_hbptriggered name the signal description string Eric W. Biederman
2018-09-24 9:10 ` Eric W. Biederman
2018-09-24 9:10 ` [REVIEW][PATCH 14/15] signal/arm64: Add and use arm64_force_sig_ptrace_errno_trap Eric W. Biederman
2018-09-24 9:10 ` Eric W. Biederman
2018-09-24 9:10 ` [REVIEW][PATCH 15/15] signal/arm64: Use send_sig_fault where appropriate Eric W. Biederman
2018-09-24 9:10 ` Eric W. Biederman
2018-09-26 17:38 ` Catalin Marinas [this message]
2018-09-26 17:38 ` [REVIEW][PATCH 00/15] signal/arm64: siginfo cleanups Catalin Marinas
2018-09-27 9:39 ` Eric W. Biederman
2018-09-27 9:39 ` Eric W. Biederman
2018-09-27 13:50 ` Catalin Marinas
2018-09-27 13:50 ` Catalin Marinas
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