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Revision a0615a16f7d0ceb5804d295203c302d496d8ee91 authored by Reza Arbab on 25 January 2017, 15:54:33 UTC, committed by Michael Ellerman on 30 January 2017, 04:35:13 UTC 
powerpc/mm: Use the correct pointer when setting a 2MB pte
 
When setting a 2MB pte, radix__map_kernel_page() is using the address

	ptep = (pte_t *)pudp;

Fix this conversion to use pmdp instead. Use pmdp_ptep() to do this
instead of casting the pointer.

Fixes: 2bfd65e45e87 ("powerpc/mm/radix: Add radix callbacks for early init routines")
Cc: stable@vger.kernel.org # v4.7+
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Reza Arbab <arbab@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
1 parent b5fa0f7
Raw File
show_mem.c 
/*
 * Generic show_mem() implementation
 *
 * Copyright (C) 2008 Johannes Weiner <hannes@saeurebad.de>
 * All code subject to the GPL version 2.
 */

#include <linux/mm.h>
#include <linux/quicklist.h>
#include <linux/cma.h>

void show_mem(unsigned int filter)
{
	pg_data_t *pgdat;
	unsigned long total = 0, reserved = 0, highmem = 0;

	printk("Mem-Info:\n");
	show_free_areas(filter);

	for_each_online_pgdat(pgdat) {
		unsigned long flags;
		int zoneid;

		pgdat_resize_lock(pgdat, &flags);
		for (zoneid = 0; zoneid < MAX_NR_ZONES; zoneid++) {
			struct zone *zone = &pgdat->node_zones[zoneid];
			if (!populated_zone(zone))
				continue;

			total += zone->present_pages;
			reserved += zone->present_pages - zone->managed_pages;

			if (is_highmem_idx(zoneid))
				highmem += zone->present_pages;
		}
		pgdat_resize_unlock(pgdat, &flags);
	}

	printk("%lu pages RAM\n", total);
	printk("%lu pages HighMem/MovableOnly\n", highmem);
	printk("%lu pages reserved\n", reserved);
#ifdef CONFIG_CMA
	printk("%lu pages cma reserved\n", totalcma_pages);
#endif
#ifdef CONFIG_QUICKLIST
	printk("%lu pages in pagetable cache\n",
		quicklist_total_size());
#endif
#ifdef CONFIG_MEMORY_FAILURE
	printk("%lu pages hwpoisoned\n", atomic_long_read(&num_poisoned_pages));
#endif
}
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