Re: early_printk accessing __log_buf

[Mike Frysinger]

On 7/24/07, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
> On Tue, 24 Jul 2007 16:12:56 -0400 Robin Getz wrote:
> > On Tue 24 Jul 2007 14:12, Andrew Morton pondered:
> > > Oh well, it sounds like we need the super-duper fast version.  Keep it
> > > as simple as possible, please.
> >
> > What about:
> >
> > int log_buf_copy(void *dest, int idx, size_t n);
> >
> > starting at index idx - copy n bytes to dest, return the number of bytes
> > copied (in case there are not n bytes in the log_buf yet).
>
> Sounds sensible.  I'd make it return size_t and take a char* arg though.
> Or just use `int' - size_t is a bit of a pain and this is all kernel-internal
> anwyay.

attached
-mike

Attachment: linux-log_buf_read.patch
Description: Binary data