From: Tony Luck Date: Thu, 2 Jul 2015 19:12:53 +0000 (-0700) Subject: [IA64] Drop debug test/printk that some special pages are marked reserved X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=43c518d197e7758bc64e0485050de347797faab6;p=openwrt%2Fstaging%2Fblogic.git [IA64] Drop debug test/printk that some special pages are marked reserved In commit 92923ca3aace "mm: meminit: only set page reserved in the memblock region" we dropped setting the reserved bits for all pages. This results in some warnings on ia64: put_kernel_page: page at 0xe000000005588000 not in reserved memory put_kernel_page: page at 0xe000000005588000 not in reserved memory put_kernel_page: page at 0xe000000005580000 not in reserved memory put_kernel_page: page at 0xe000000005580000 not in reserved memory put_kernel_page: page at 0xe000000005580000 not in reserved memory put_kernel_page: page at 0xe000000005580000 not in reserved memory the two different pages match up with two objects from the loaded kernel that get mapped by arch/ia64/mm/init.c:setup_gate() a000000101588000 D __start_gate_section a000000101580000 D empty_zero_page In a discussion with Mel Gorman: http://lkml.kernel.org/r/20150526102219.GB13750%40suse.de he suggested that while the preferred approach might be to set the reserved bit for these pages, it would also be OK to just drop the test: "as it's a debugging check that is ia-64 specific" After hunting around a bit and failin to find a good place to mark these pages as reserved - I decided to just delete the test. Signed-off-by: Tony Luck --- diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c index 7f3028965064..97e48b0eefc7 100644 --- a/arch/ia64/mm/init.c +++ b/arch/ia64/mm/init.c @@ -215,10 +215,6 @@ put_kernel_page (struct page *page, unsigned long address, pgprot_t pgprot) pmd_t *pmd; pte_t *pte; - if (!PageReserved(page)) - printk(KERN_ERR "put_kernel_page: page at 0x%p not in reserved memory\n", - page_address(page)); - pgd = pgd_offset_k(address); /* note: this is NOT pgd_offset()! */ {