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Commit 0e5e24bf authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] Make show_mem() skip holes in a pgdat
  [IA64] ia64_wait_for_slaves() incorrectly reports MCA
parents 20ac9437 ace1d816

arch/ia64/kernel/mca.c

+5 −5
Original line number Diff line number Diff line
@@ -963,7 +963,7 @@ ia64_mca_modify_original_stack(struct pt_regs *regs, 
 */



static void

ia64_wait_for_slaves(int monarch)

ia64_wait_for_slaves(int monarch, const char *type)

{

	int c, wait = 0, missing = 0;

	for_each_online_cpu(c) {
@@ -989,7 +989,7 @@ ia64_wait_for_slaves(int monarch) 
	}

	if (!missing)

		goto all_in;

	printk(KERN_INFO "OS MCA slave did not rendezvous on cpu");

	printk(KERN_INFO "OS %s slave did not rendezvous on cpu", type);

	for_each_online_cpu(c) {

		if (c == monarch)

			continue;
@@ -1000,7 +1000,7 @@ ia64_wait_for_slaves(int monarch) 
	return;



all_in:

	printk(KERN_INFO "All OS MCA slaves have reached rendezvous\n");

	printk(KERN_INFO "All OS %s slaves have reached rendezvous\n", type);

	return;

}
@@ -1038,7 +1038,7 @@ ia64_mca_handler(struct pt_regs *regs, struct switch_stack *sw, 
	if (notify_die(DIE_MCA_MONARCH_ENTER, "MCA", regs, (long)&nd, 0, 0)

			== NOTIFY_STOP)

		ia64_mca_spin(__FUNCTION__);

	ia64_wait_for_slaves(cpu);

	ia64_wait_for_slaves(cpu, "MCA");



	/* Wakeup all the processors which are spinning in the rendezvous loop.

	 * They will leave SAL, then spin in the OS with interrupts disabled
@@ -1429,7 +1429,7 @@ ia64_init_handler(struct pt_regs *regs, struct switch_stack *sw, 
	 */

	printk("Delaying for 5 seconds...\n");

	udelay(5*1000000);

	ia64_wait_for_slaves(cpu);

	ia64_wait_for_slaves(cpu, "INIT");

	/* If nobody intercepts DIE_INIT_MONARCH_PROCESS then we drop through

	 * to default_monarch_init_process() above and just print all the

	 * tasks.

arch/ia64/mm/discontig.c

+65 −1
Original line number Diff line number Diff line
@@ -519,6 +519,68 @@ void __cpuinit *per_cpu_init(void) 
}

#endif /* CONFIG_SMP */



#ifdef CONFIG_VIRTUAL_MEM_MAP

static inline int find_next_valid_pfn_for_pgdat(pg_data_t *pgdat, int i)

{

	unsigned long end_address, hole_next_pfn;

	unsigned long stop_address;



	end_address = (unsigned long) &vmem_map[pgdat->node_start_pfn + i];

	end_address = PAGE_ALIGN(end_address);



	stop_address = (unsigned long) &vmem_map[

		pgdat->node_start_pfn + pgdat->node_spanned_pages];



	do {

		pgd_t *pgd;

		pud_t *pud;

		pmd_t *pmd;

		pte_t *pte;



		pgd = pgd_offset_k(end_address);

		if (pgd_none(*pgd)) {

			end_address += PGDIR_SIZE;

			continue;

		}



		pud = pud_offset(pgd, end_address);

		if (pud_none(*pud)) {

			end_address += PUD_SIZE;

			continue;

		}



		pmd = pmd_offset(pud, end_address);

		if (pmd_none(*pmd)) {

			end_address += PMD_SIZE;

			continue;

		}



		pte = pte_offset_kernel(pmd, end_address);

retry_pte:

		if (pte_none(*pte)) {

			end_address += PAGE_SIZE;

			pte++;

			if ((end_address < stop_address) &&

			    (end_address != ALIGN(end_address, 1UL << PMD_SHIFT)))

				goto retry_pte;

			continue;

		}

		/* Found next valid vmem_map page */

		break;

	} while (end_address < stop_address);



	end_address = min(end_address, stop_address);

	end_address = end_address - (unsigned long) vmem_map + sizeof(struct page) - 1;

	hole_next_pfn = end_address / sizeof(struct page);

	return hole_next_pfn - pgdat->node_start_pfn;

}

#else

static inline int find_next_valid_pfn_for_pgdat(pg_data_t *pgdat, int i)

{

	return i + 1;

}

#endif



/**

 * show_mem - give short summary of memory stats

 *
@@ -547,8 +609,10 @@ void show_mem(void) 
			struct page *page;

			if (pfn_valid(pgdat->node_start_pfn + i))

				page = pfn_to_page(pgdat->node_start_pfn + i);

			else

			else {

				i = find_next_valid_pfn_for_pgdat(pgdat, i) - 1;

				continue;

			}

			if (PageReserved(page))

				reserved++;

			else if (PageSwapCache(page))