kernel memory allocation

[João Eduardo Luís]

Hi.

From [1] I'm lead to believe the only difference between the regular kmalloc() arguments and those of kmalloc_node() is the one specifying which node you want to allocate the memory on.

Aside from the third argument, which seems to be related with NUMA (with which I never worked on kernel-context), I would suggest you to read [2].

If on the other hand you only want to allocate memory locally, maybe you should use kmalloc() or one of its variants [3]. 


Cheers.


[1] - http://www.kernel.org/doc/htmldocs/kernel-api/API-kmalloc-node.html
[2] - http://www.kernel.org/doc/htmldocs/kernel-api/API-kcalloc.html
[3] - http://www.kernel.org/doc/htmldocs/kernel-api/mm.html#id408507
---
João Eduardo Luís
gpg key: 477C26E5 from pool.keyserver.eu 





On Jun 3, 2011, at 7:07 PM, Amirali Shambayati wrote:

> 
> Hello all,
> 
> I just want to allocate memory for a struct instantiation. Would anyone guide me what arguments I should pass to "kmalloc_node"?
> Regards,
> -- 
> Amirali Shambayati
> Bachelor Student
> Computer Engineering Department
> Sharif University of Technology
> Tehran, Iran
> 
> _______________________________________________
> Kernelnewbies mailing list
> Kernelnewbies at kernelnewbies.org
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