min_not_zero()
From: Matthew Wilcox
Date: Sat Sep 27 2003 - 20:58:08 EST
Here's a thought ...
#define min_not_zero(l, r) \
min((unsigned long)(l - 1), (unsigned long)(r - 1)) + 1
Seems to me that'll always give the right answer ... 0 if both 0,
otherwise the lower of the two. And it's kind of an awkward name.
How about making it *really* specific to request_queue, putting it in
blkdev.h and calling it request_sector_min() like so:
#define request_sector_min(a, b) \
min((a)->max_sectors - 1, (b)->max_sectors - 1) + 1
(no cast needed cos they're already unsigned. um, unless I've misremembered
how C constants work again... should they be 1U?)
--
"It's not Hollywood. War is real, war is primarily not about defeat or
victory, it is about death. I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk
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