> > map = get_page_map(map, ptr);
> > and now we pass this to get_page_map() which promptly returns 0,
>
> Yikes. Yes, somebody snuck a completely bogus patch into 2.3.48. The
> _only_ reason vaddr should be used in get_page_map() is to act as an
> argument to ZERO_PAGE() for architectures in which the zero page is
> cache-coloured.
my patch, my fault, sorry. I mistakenly assumed vaddr to be a kernel address.
however, the previous code was
if (MAP_NR(page) >= max_mapnr)
return 0;
which is also bogus. if the intention is to detect if it's outside "struct
page *" memory, then
if (page - mem_map >= max_mapnr)
return 0;
makes more sense.
ganesh
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Tue Mar 07 2000 - 21:00:13 EST