mm/mm_init.c: remove unneeded calc_memmap_size()
Nobody calls calc_memmap_size() now. Link: https://lkml.kernel.org/r/20240325145646.1044760-6-bhe@redhat.com Signed-off-by: Baoquan He <bhe@redhat.com> Reviewed-by: Mike Rapoport (IBM) <rppt@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
parent
0ac5e785dc
commit
90e796e22e
20
mm/mm_init.c
20
mm/mm_init.c
@ -1332,26 +1332,6 @@ static void __init calculate_node_totalpages(struct pglist_data *pgdat,
|
||||
pr_debug("On node %d totalpages: %lu\n", pgdat->node_id, realtotalpages);
|
||||
}
|
||||
|
||||
static unsigned long __init calc_memmap_size(unsigned long spanned_pages,
|
||||
unsigned long present_pages)
|
||||
{
|
||||
unsigned long pages = spanned_pages;
|
||||
|
||||
/*
|
||||
* Provide a more accurate estimation if there are holes within
|
||||
* the zone and SPARSEMEM is in use. If there are holes within the
|
||||
* zone, each populated memory region may cost us one or two extra
|
||||
* memmap pages due to alignment because memmap pages for each
|
||||
* populated regions may not be naturally aligned on page boundary.
|
||||
* So the (present_pages >> 4) heuristic is a tradeoff for that.
|
||||
*/
|
||||
if (spanned_pages > present_pages + (present_pages >> 4) &&
|
||||
IS_ENABLED(CONFIG_SPARSEMEM))
|
||||
pages = present_pages;
|
||||
|
||||
return PAGE_ALIGN(pages * sizeof(struct page)) >> PAGE_SHIFT;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
|
||||
static void pgdat_init_split_queue(struct pglist_data *pgdat)
|
||||
{
|
||||
|
Loading…
Reference in New Issue
Block a user