find_next_zero_bit

Applied.

Thanks,

	--david

Erich> Hi, the following little patch repairs the function Erich> find_next_zero_bit() for ia64 platforms. Somehow this small Erich> piece of code went lost from the ia64 version. The problem is Erich> that the function returns results larger than the size of the Erich> bitmap if all bits are set (ignores stop-bits) and the size Erich> is not a multiple of sizeof(long). This lead to crashes of Erich> Ingo's new scheduler under heavy load.

Erich> Regards, Erich

Erich> --- 2.4.17-ia64-kdb-j6/include/asm-ia64/bitops.h Tue Jan 15 Erich> 15:21:08 2002 +++
Erich> 2.4.17-ia64-kdb-j6ia64/include/asm-ia64/bitops.h Fri Jan 25 Erich> 19:45:31 2002 @@ -357,6 +357,8 @@ tmp = *p; found_first: tmp Erich> |= ~0UL << size; + if (tmp = ~0UL) /* Are any bits zero? */ Erich> + return result + size; /* Nope. */ found_middle: return Erich> result + ffz(tmp); }