cvs commit: src/lib/libc/sys mincore.2 src/sys/vm vm_mmap.c

Alan Cox alc at cs.rice.edu
Wed Jun 21 18:07:49 UTC 2006


John-Mark Gurney wrote:

>Alan Cox wrote this message on Wed, Jun 21, 2006 at 12:44 -0500:
>  
>
>>John-Mark Gurney wrote:
>>
>>    
>>
>>>Konstantin Belousov wrote this message on Wed, Jun 21, 2006 at 12:59 +0000:
>>>
>>>      
>>>
>>>>Modified files:
>>>>  lib/libc/sys         mincore.2 
>>>>  sys/vm               vm_mmap.c 
>>>>Log:
>>>>Make the mincore(2) return ENOMEM when requested range is not fully 
>>>>mapped.
>>>>        
>>>>
>>>Is this change to be posix compliant or something?  ENOMEM seems like
>>>the wrong error, or are we allocating memory?
>>>#define ENOMEM          12              /* Cannot allocate memory */
>>>
>>>the original EINVAL seems to me the correct one, as is commonly used
>>>when the data passed in is incorrect...
>>>      
>>>
>>I looked at this when the patch was proposed.  ENOMEM is the de facto 
>>standard error for this case.  To the best of my knowledge, there is no 
>>officially-sanctioned specification for mincore(2).
>>    
>>
>
>Could you please provide a reference to this de facto standard error
>as in other places where ENOMEM is used for such an error?
>
>  
>
I don't understand the question.  It is a de facto standard.  So, there 
is no reference, like POSIX or the Open Group that can be cited.  Can 
you restate the question?


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