user/sven/linux.git/include/asm-generic/div64.h, branch v3.19.6

rename div64_64 to div64_u64

2008-05-01T15:03:58Z

Rename div64_64 to div64_u64 to make it consistent with the other divide functions, so it clearly includes the type of the divide. Move its definition to math64.h as currently no architecture overrides the generic implementation. They can still override it of course, but the duplicated declarations are avoided. Signed-off-by: Roman Zippel Cc: Avi Kivity Cc: Russell King Cc: Geert Uytterhoeven Cc: Ralf Baechle Cc: David Howells Cc: Jeff Dike Cc: Ingo Molnar Cc: "David S. Miller" Cc: Patrick McHardy Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[NET]: div64_64 consolidate (rev3)

2007-04-26T05:23:33Z

Here is the current version of the 64 bit divide common code. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

[PATCH] asm-generic/div64.h breakage

2003-07-12T02:35:48Z

- __div64_32(): remove __attribute_pure__ qualifier from the prototype since this function obviously clobbers memory through &(n); - do_div(): add a check to ensure (n) is type-compatible with uint64_t; - as_update_iohist(): Use sector_div() instead of do_div(). (Whether the result of the addition should always be stored in 64bits regardless of CONFIG_LBD is still being discussed, therefore it's unadderessed here); - Fix all places where do_div() was being called with a bad divisor argument.

[PATCH] Fix problem introduced by do_div() patch

2003-07-08T09:19:51Z

- export the __div64_32 symbol for modules; - add likely() to the fast path (divisor>>32 == 0); - add __attribute__((pure)) to __div64_32() prototype so the compiler knows global memory isn't clobbered; - avoid building __div64_32() on 64bit architectures.

[PATCH] Fix do_div() for all architectures

2003-07-06T05:58:25Z

This offers a generic do_div64() that actually does the right thing, unlike some architectures that "optimized" the 64-by-32 divide into just a 32-bit divide. Both ppc and sh were already providing an assembly optimized __div64_32(). I called my function the same, so that their optimized versions will automatically override mine in lib.a. I've only tested extensively on m68knommu (uClinux) and made sure generated code is reasonably short. Should be ok also on parisc, since it's the same algorithm they were using before. - add generic C implementations of the do_div() for 32bit and 64bit archs in asm-generic/div64.h; - add generic library support function __div64_32() to handle the full 64/32 case on 32bit archs; - kill multiple copies of generic do_div() in architecture specific subdirs. Most copies were either buggy or not doing what they were supposed to do; - ensure all surviving instances of do_div() have their parameters correctly parenthesized to avoid funny side-effects;