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From: Peter Zijlstra <peterz@infradead.org>
To: Nadav Amit <namit@vmware.com>
Cc: Ingo Molnar <mingo@redhat.com>,
	linux-kernel@vger.kernel.org, x86@kernel.org,
	"H. Peter Anvin" <hpa@zytor.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	Andy Lutomirski <luto@kernel.org>,
	Kees Cook <keescook@chromium.org>,
	Dave Hansen <dave.hansen@intel.com>,
	Masami Hiramatsu <mhiramat@kernel.org>
Subject: Re: [PATCH v3 2/7] x86/jump_label: Use text_poke_early() during early_init
Date: Mon, 5 Nov 2018 13:39:53 +0100	[thread overview]
Message-ID: <20181105123953.GA22467@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20181102232946.98461-3-namit@vmware.com>

On Fri, Nov 02, 2018 at 04:29:41PM -0700, Nadav Amit wrote:
> diff --git a/init/main.c b/init/main.c
> index a664246450d1..b0fa26637496 100644
> --- a/init/main.c
> +++ b/init/main.c
> @@ -117,6 +117,8 @@ extern void radix_tree_init(void);
>   */
>  bool early_boot_irqs_disabled __read_mostly;
>  
> +u8 early_boot_done __read_mostly;
> +
>  enum system_states system_state __read_mostly;
>  EXPORT_SYMBOL(system_state);

Should this not be using system_state ^ ? The site is very close to
SYSTEM_SCHEDULING, can we use that or should we add another state ?

> @@ -735,6 +737,8 @@ asmlinkage __visible void __init start_kernel(void)
>  		efi_free_boot_services();
>  	}
>  
> +	early_boot_done = true;
> +
>  	/* Do the rest non-__init'ed, we're now alive */
>  	rest_init();
>  }
> -- 
> 2.17.1
> 

  reply	other threads:[~2018-11-05 12:40 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-02 23:29 [PATCH v3 0/7] x86/alternatives: text_poke() fixes Nadav Amit
2018-11-02 23:29 ` [PATCH v3 1/7] Fix "x86/alternatives: Lockdep-enforce text_mutex in text_poke*()" Nadav Amit
2018-11-03 10:11   ` Jiri Kosina
2018-11-04 20:58   ` Thomas Gleixner
2018-11-05 18:14     ` Nadav Amit
2018-11-02 23:29 ` [PATCH v3 2/7] x86/jump_label: Use text_poke_early() during early_init Nadav Amit
2018-11-05 12:39   ` Peter Zijlstra [this message]
2018-11-05 13:33     ` Peter Zijlstra
2018-11-05 14:09   ` Peter Zijlstra
2018-11-05 17:22     ` Andy Lutomirski
2018-11-05 17:49       ` Nadav Amit
2018-11-05 19:03         ` Andy Lutomirski
2018-11-05 19:25           ` Nadav Amit
2018-11-05 20:05             ` Andy Lutomirski
2018-11-05 20:28               ` Thomas Gleixner
2018-11-05 21:31                 ` Nadav Amit
2018-11-07 19:13     ` Nadav Amit
2018-11-08 10:41       ` Peter Zijlstra
2018-11-02 23:29 ` [PATCH v3 3/7] x86/mm: temporary mm struct Nadav Amit
2018-11-02 23:29 ` [PATCH v3 4/7] fork: provide a function for copying init_mm Nadav Amit
2018-11-02 23:29 ` [PATCH v3 5/7] x86/alternatives: initializing temporary mm for patching Nadav Amit
2018-11-02 23:29 ` [PATCH v3 6/7] x86/alternatives: use temporary mm for text poking Nadav Amit
2018-11-05 13:19   ` Peter Zijlstra
2018-11-05 13:30   ` Peter Zijlstra
2018-11-05 18:04     ` Nadav Amit
2018-11-06  8:20       ` Peter Zijlstra
2018-11-06 13:11         ` Peter Zijlstra
2018-11-06 18:11           ` Nadav Amit
2018-11-06 19:08             ` Peter Zijlstra
2018-11-02 23:29 ` [PATCH v3 7/7] x86/alternatives: remove text_poke() return value Nadav Amit

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