On Mon, Jul 01, 2013 at 10:14:45AM -0400, Santosh Shilimkar wrote: > Joonsoo, > > On Monday 25 March 2013 12:11 AM, Joonsoo Kim wrote: > > nobootmem use max_low_pfn for computing boundary in free_all_bootmem() > > So we need proper value to max_low_pfn. > > > > But, there is some difficulty related to max_low_pfn. max_low_pfn is used > > for two meanings in various architectures. One is for number of pages > > in lowmem and the other is for maximum lowmem pfn. Now, in ARM, it is used > > as number of pages in lowmem. You can get more information in below link. > > http://lwn.net/Articles/543408/ > > http://lwn.net/Articles/543424/ > > > > As I investigated, architectures which use max_low_pfn as maximum pfn are > > more than others, so to change meaning of max_low_pfn to maximum pfn > > is preferable solution to me. This patch change max_low_pfn as maximum > > lowmem pfn in ARM. In addition, min_low_pfn, max_pfn is assigned according > > to this criteria. > > > > There is no real user for max_low_pfn except block/blk-setting.c and > > blk-setting.c assume that max_low_pfn is maximum lowmem pfn, > > so this patch may not harm anything. > > > > Signed-off-by: Joonsoo Kim <iamjoonsoo....@lge.com> > > > I have been also carrying similar patch as yours in an attempt > to make LPAE kernel work on ARM. Your patch carries better > description, so will your version and include in my series > which I plan to post on the list after some more testing. > Will copy you. The changes are very similar to your series.
Okay! Thanks. > > Regards, > Santosh > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
