path: root/init/do_mounts_md.c
diff options
authorArjan van de Ven <>2008-09-21 15:44:32 -0700
committerArjan van de Ven <>2008-10-12 08:25:02 -0700
commita364092a412975e506415f77f0628cbdd28c3913 (patch)
tree98d7d66e8658c9959b2961f0b40356e981277395 /init/do_mounts_md.c
parent82cbc11a4146d6a8acd81f81f7fe17387668107f (diff)
raid: make RAID autodetect default a KConfig option
RAID autodetect has the side effect of requiring synchronisation of all device drivers, which can make the boot several seconds longer (I've measured 7 on one of my laptops).... even for systems that don't have RAID setup for the root filesystem (the only FS where this matters). This patch makes the default for autodetect a config option; either way the user can always override via the kernel command line. Signed-off-by: Arjan van de Ven <> Acked-by: NeilBrown <>
Diffstat (limited to 'init/do_mounts_md.c')
1 files changed, 9 insertions, 2 deletions
diff --git a/init/do_mounts_md.c b/init/do_mounts_md.c
index c0dfd3c1e91b..48b3fadd83ed 100644
--- a/init/do_mounts_md.c
+++ b/init/do_mounts_md.c
@@ -12,7 +12,12 @@
* The code for that is here.
-static int __initdata raid_noautodetect, raid_autopart;
+static int __initdata raid_noautodetect;
+static int __initdata raid_noautodetect=1;
+static int __initdata raid_autopart;
static struct {
int minor;
@@ -252,6 +257,8 @@ static int __init raid_setup(char *str)
if (!strncmp(str, "noautodetect", wlen))
raid_noautodetect = 1;
+ if (!strncmp(str, "autodetect", wlen))
+ raid_noautodetect = 0;
if (strncmp(str, "partitionable", wlen)==0)
raid_autopart = 1;
if (strncmp(str, "part", wlen)==0)
@@ -288,7 +295,7 @@ void __init md_run_setup(void)
create_dev("/dev/md0", MKDEV(MD_MAJOR, 0));
if (raid_noautodetect)
- printk(KERN_INFO "md: Skipping autodetection of RAID arrays. (raid=noautodetect)\n");
+ printk(KERN_INFO "md: Skipping autodetection of RAID arrays. (raid=autodetect will force)\n");