Re: [mm subsystem] A question about function page_table_range_init_count()

2017-03-21 Thread Rik van Riel
On Wed, 2017-03-15 at 22:12 +0800, Hao Lee wrote: > Hi, all > > I encounter a problem when I read the source code of kernel 4.9.9. > > In arch/x86/mm/init_32.c, at line 125 [1], there is a function named > page_table_range_init_count(...). I have analyzed some codes and find > its two parameters

[mm subsystem] A question about function page_table_range_init_count()

2017-03-15 Thread Hao Lee
Hi, all I encounter a problem when I read the source code of kernel 4.9.9. In arch/x86/mm/init_32.c, at line 125 [1], there is a function named page_table_range_init_count(...). I have analyzed some codes and find its two parameters are PKMAP_BASE and FIXADDR_START. Between Line 141 and Line