[PATCH] [1/2 DSDT via initrd or initramfs] move initramfs init before DSDT init

[PATCH] [1/2 DSDT via initrd or initramfs] move initramfs init before DSDT init

[Thomas Renninger]

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Hi,

This patch from Hannes Reinecke (hare-l3A5Bk7waGM@public.gmane.org) moves initialisation of 
initramfs by some lines before the DSDT is parsed.

     Thomas

-> linux-2.6.11-rc5

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Subject: Call populate_rootfs() prior to acpi_early_init()
From: Hannes Reinecke <hare-l3A5Bk7waGM@public.gmane.org>

populate_rootfs should be called prior to acpi_early_init()
if we ever want to be able to use a custom DSDT from initramfs.
Having done this, rootfs is available during acpi_early_init()
and the ACPI code can just call sys_open() to load a custom
DSDT.

--- x/init/main.c.orig	2005-02-24 17:39:55.000000000 +0100
+++ y/init/main.c	2005-02-26 16:46:30.278718350 +0100
@@ -508,8 +508,6 @@
 #endif
 	check_bugs();
 
-	acpi_early_init(); /* before LAPIC and SMP init */
-
 	/* Do the rest non-__init'ed, we're now alive */
 	rest_init();
 }
@@ -635,6 +633,14 @@
 	 */
 	child_reaper = current;
 
+	/*
+	 * Do this before initcalls, because some drivers want to access
+	 * firmware files.
+	 */
+	populate_rootfs();
+
+	acpi_early_init(); /* before LAPIC and SMP init */
+
 	/* Sets up cpus_possible() */
 	smp_prepare_cpus(max_cpus);
 
@@ -644,12 +650,6 @@
 	smp_init();
 	sched_init_smp();
 
-	/*
-	 * Do this before initcalls, because some drivers want to access
-	 * firmware files.
-	 */
-	populate_rootfs();
-
 	do_basic_setup();
 
 	/*