> > Dave, please let me know getpagesize() function return to 4k or 64k on ppc64.
Hmmm, Who want to this infomation?
I agreed with
- An administrator want to know these page are normal or huge.
- An administrator want to know hugepage size.
(e.g. x86_64 has two hugepage size (2M and 1G))
but above ppc64 case seems deeply implementation depended infomation and
nobody want to know it.
it seems a bottleneck of future enhancement.
then I disagreed with
- show both KernelPageSize and MMUPageSize in normal page.
I like following two choice
1) in normal page, show PAZE_SIZE
because, any userland application woks as pagesize==PAZE_SIZE
on current powerpc architecture.
because
fs/binfmt_elf.c
------------------------------
static int
create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
unsigned long load_addr, unsigned long interp_load_addr)
{
(snip)
NEW_AUX_ENT(AT_HWCAP, ELF_HWCAP);
NEW_AUX_ENT(AT_PAGESZ, ELF_EXEC_PAGESIZE); /* pass ELF_EXEC_PAGESIZE to libc */
include/asm-powerpc/elf.h
-----------------------------
#define ELF_EXEC_PAGESIZE PAGE_SIZE
2) in normal page, no display any page size.
only hugepage case, display page size.
because, An administrator want to hugepage size only. (AFAICS)
Thought?
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