mmap implementation for cdev

Filippo Sironi filippo.sironi at gmail.com
Sat Dec 3 10:38:16 UTC 2011


I need to access the memory both from user space and kernel space, I cannot do that (simply) with an mmap or thread-specific storage if I recall correctly.

On 03/dic/2011, at 11.00, Poul-Henning Kamp wrote:

> In message <A842C229-1846-408A-999A-9347770EFE7A at gmail.com>, Filippo Sironi wri
> tes:
> 
> Why don't you just use mmap(2) ?  I couldn't see anything you
> couldn't do with it.
> 
> There's also support in pthread for thread specific storage, which
> should be your first choice.
> 
> 
> -- 
> Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
> phk at FreeBSD.ORG         | TCP/IP since RFC 956
> FreeBSD committer       | BSD since 4.3-tahoe    
> Never attribute to malice what can adequately be explained by incompetence.



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