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fix maxcpus=N parsing

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Commit 61ec7567db ('ACPI: boot correctly
with "nosmp" or "maxcpus=0"') broke 'maxcpus=' handling on x86[-64].

maxcpus=N is now having no effect on x86_64, and freezing bootup on i386
(because of inconsistency with the separate maxcpus parsing down in
arch/i386, I guess).  That's because early_param parsing is a little
different from __setup parsing, and needs the "=" omitted: then it seems
to work as the original commit intended (no mention of IO-APIC in
/proc/interrupts when maxcpus=0).

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Len Brown <len.brown@intel.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Hugh Dickins 2007-08-27 16:02:12 +01:00 committed by Linus Torvalds
parent 88ede8209e
commit 8134097717
1 changed files with 1 additions and 1 deletions
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2
init/main.c
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@ -168,7 +168,7 @@ static int __init maxcpus(char *str)
return 0;
}
early_param("maxcpus=", maxcpus);
early_param("maxcpus", maxcpus);
#else
#define max_cpus NR_CPUS
#endif