[Crash-utility] spanned vs. present
Hi,
I'm wondering why kmem -f uses the spanned pages of every zone when
reporting its size. Wouldn't it be more informative to get a value
which excludes any holes?
This is the code from memory.c I'm thinking of:
/*
* Same as dump_free_pages_zones_v1(), but updated for numerous 2.6 zone
* and free_area related data structure changes.
*/
static void
dump_free_pages_zones_v2(struct meminfo *fi)
{
[...]
if (VALID_MEMBER(zone_spanned_pages))
zone_size_offset = OFFSET(zone_spanned_pages);
else
error(FATAL, "zone struct has no spanned_pages field\n");
[...]
}
Regards,
Per