Re: udevd on very large systems: again

[George Beshers <gbeshers@sgi.com>]

Yes your right --- I am guilty of not reading the source
in sufficient detail.

The patch you proposed works fine, may it appear soon :-).

George


Kay Sievers wrote:
> On Wed, 2007-05-02 at 17:26 -0400, George Beshers wrote:
>   
>
>
> Looking at the seq_file code, calling lseek() causes the buffer to be
> repopulated:
>   seq_lseek() -> traverse() -> m->op->show()
> while show() is the method of the "stat" file that fills the buffer.
>
> A simple read() should not do that, and just copy the content (up to
> 128kB) of the kernel seq_file file buffer to the user-process:
>   seq_read() -> copy_to_user(buf, m->buf + m->from, n)
>
>   


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