Re: do_div vs sector_t

From: linux@horizon.com
Date: Sun Jul 13 2003 - 13:40:06 EST


> if (likely(((n) >> 32) == 0)) { \

if (likely((n) <= 0xffffffff)) {

will work with any unsigned type for n.

GCC knows to only look at the high word to make this test.
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