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Commit 273988fa authored by Christoph Lameter's avatar Christoph Lameter Committed by Tony Luck
Browse files

[IA64] Untangle sync_icache_dcache() page size determination 



Untangle the chaos of page size determination in this function by
simply using PAGE_SIZE << compound_order().

Signed-off-by: default avatarChristoph Lameter <clameter@sgi.com>
Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
parent 5cf1f7ce

arch/ia64/mm/init.c

+1 −7
Original line number Diff line number Diff line
@@ -58,7 +58,6 @@ __ia64_sync_icache_dcache (pte_t pte) 
{

	unsigned long addr;

	struct page *page;

	unsigned long order;



	page = pte_page(pte);

	addr = (unsigned long) page_address(page);
@@ -66,12 +65,7 @@ __ia64_sync_icache_dcache (pte_t pte) 
	if (test_bit(PG_arch_1, &page->flags))

		return;				/* i-cache is already coherent with d-cache */



	if (PageCompound(page)) {

		order = compound_order(page);

		flush_icache_range(addr, addr + (1UL << order << PAGE_SHIFT));

	}

	else

		flush_icache_range(addr, addr + PAGE_SIZE);

	flush_icache_range(addr, addr + (PAGE_SIZE << compound_order(page)));

	set_bit(PG_arch_1, &page->flags);	/* mark page as clean */

}