Commit 801916c1 authored Oct 17, 2007 by Andrew Hastings Committed by Thomas Gleixner Oct 17, 2007

x86: fix off-by-one in find_next_zero_string



Fix an off-by-one error in find_next_zero_string which prevents
allocating the last bit.

[ tglx: arch/x86 adaptation ]

Signed-off-by: Andrew Hastings <abh@cray.com> on behalf of Cray Inc.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

parent 6442eea9

arch/x86/lib/bitstr_64.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -14,7 +14,7 @@ find_next_zero_string(unsigned long *bitmap, long start, long nbits, int len)

		/* could test bitsliced, but it's hardly worth it */
		end = n+len;
		if (end >= nbits)
		if (end > nbits)
		return -1;
		for (i = n+1; i < end; i++) {
		if (test_bit(i, bitmap)) {