diff options
| author | Arjan van de Ven <arjan@linux.intel.com> | 2008-09-21 15:44:32 -0700 |
|---|---|---|
| committer | Arjan van de Ven <arjan@linux.intel.com> | 2008-10-12 08:25:02 -0700 |
| commit | a364092a412975e506415f77f0628cbdd28c3913 (patch) | |
| tree | 98d7d66e8658c9959b2961f0b40356e981277395 /init | |
| parent | 82cbc11a4146d6a8acd81f81f7fe17387668107f (diff) | |
| download | lwn-a364092a412975e506415f77f0628cbdd28c3913.tar.gz lwn-a364092a412975e506415f77f0628cbdd28c3913.zip | |
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 <arjan@linux.intel.com>
Acked-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'init')
| -rw-r--r-- | init/do_mounts_md.c | 11 |
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; +#ifdef CONFIG_MD_AUTODETECT +static int __initdata raid_noautodetect; +#else +static int __initdata raid_noautodetect=1; +#endif +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"); else autodetect_raid(); md_setup_drive(); |