On Tue, 1 Apr 2008, Kevin D. Kissell wrote: > Once upon a time, the global max_pfn value was set up as part of > bootmem_init(), but this seems to have been dropped in favor of > establishing max_low_pfn, I suppose to be clear that it's the max > non-highmem PFN. However, the global max_pfn gets used in > the MIPS APRP support code, and also in places like > block/blk-settings.c. Is the use of max_pfn supposed to be > deprecated, such that we consider blk-settings.c to be broken > and change arch/mips/kernel/vpe.c to use max_low_pfn, or > ought we assign max_pfn = max_low_pfn in bootmem_init()? I noticed this too when investigating why initrds no longer worked on m68k (Fix in http://lkml.org/lkml/2007/12/23/36, still not in mainline). Apparently a value of max_pfn = 0 is OK, as several architectures (including MIPS and m68k) don't touch it? Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
