Messages in this thread Patch in this message | | | Subject | [PATCH 3/6] lguest suppress IDE probing | From | Rusty Russell <> | Date | Wed, 06 Jun 2007 00:58:03 +1000 |
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The IDE probe is the slowest part of boot: by suppressing it we cut boot from from 3 seconds to half a second.
AFAICT, the commandline is the easiest way to suppress the probing.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> --- drivers/lguest/lguest.c | 6 ++++++ 1 file changed, 6 insertions(+)
=================================================================== --- a/drivers/lguest/lguest.c +++ b/drivers/lguest/lguest.c @@ -605,6 +605,12 @@ __init void lguest_init(void *boot) acpi_disabled = 1; acpi_ht = 0; #endif +#ifdef CONFIG_BLK_DEV_IDE + /* Saves three seconds off boot time. */ + strcat(boot_command_line, + " ide0=noprobe ide1=noprobe ide2=noprobe" + " ide3=noprobe ide4=noprobe ide5=noprobe"); +#endif add_preferred_console("hvc", 0, NULL);
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