linux-kernel - [PATCH 3/5] x86/mm: Initialize text poking earlier

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Message-ID: <20221025201057.881703081@infradead.org>
Date:   Tue, 25 Oct 2022 22:06:59 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     torvalds@...ux-foundation.org, rostedt@...dmis.org,
        dave.hansen@...el.com
Cc:     linux-kernel@...r.kernel.org, peterz@...radead.org, x86@...nel.org,
        keescook@...omium.org, seanjc@...gle.com
Subject: [PATCH 3/5] x86/mm: Initialize text poking earlier

Move poking_init() up a bunch; specifically move it right after
mm_init() which is right before ftrace_init().

This will allow simplifying ftrace text poking which currently has
a bunch of exceptions for early boot.

Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
---
 init/main.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/init/main.c
+++ b/init/main.c
@@ -996,7 +996,7 @@ asmlinkage __visible void __init __no_sa
 	sort_main_extable();
 	trap_init();
 	mm_init();
-
+	poking_init();
 	ftrace_init();
 
 	/* trace_printk can be enabled here */
@@ -1135,7 +1135,6 @@ asmlinkage __visible void __init __no_sa
 	taskstats_init_early();
 	delayacct_init();
 
-	poking_init();
 	check_bugs();
 
 	acpi_subsystem_init();