On Apr 14,  8:34am, jonathan@DSG.Stanford.EDU (Jonathan Stone) wrote:
-- Subject: Re: speeding up bzero

It is time for the {ov,}b*() functions to bite the dust.

christos

| In message <45D3A7FC-6E3F-11D7-9F28-000A957650EC@wasabisystems.com>,
| Jason Thorpe  writes:
| >
| >On Saturday, April 12, 2003, at 06:56  AM, David Laight wrote:
| 
| >The kernel has always had "ovbcopy()" for overlapping bcopy.  So, I'd 
| >think bcopy() should behave like memcpy(), i.e. not bother checking for 
| >overlap.
| 
| This sounds like a bad idea: yes, the kernel has had ovbcopy(), but on
| at least two of our ports, bcopy() has historically checked for
| overlap and given userspace-bcopy() semantics.
| 
| Why change it (potentially introducing breakage) if it ain't broken,
| and if we're meant to be using memcpy()/memmove() anyway?
-- End of excerpt from Jonathan Stone