Commit 85e97be3 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'akpm' (patches from Andrew) 

Merge misc fixes from Andrew Morton:
 "8 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  mm/slub.c: run free_partial() outside of the kmem_cache_node->list_lock
  rmap: fix compound check logic in page_remove_file_rmap
  mm, rmap: fix false positive VM_BUG() in page_add_file_rmap()
  mm/page_alloc.c: recalculate some of node threshold when on/offline memory
  mm/page_alloc.c: fix wrong initialization when sysctl_min_unmapped_ratio changes
  thp: move shmem_huge_enabled() outside of SYSFS ifdef
  revert "ARM: keystone: dts: add psci command definition"
  rapidio: dereferencing an error pointer
parents 7de24996 60398923

arch/arm/boot/dts/keystone.dtsi

+0 −8
Original line number Diff line number Diff line
@@ -70,14 +70,6 @@ 
		cpu_on		= <0x84000003>;

	};



	psci {

		compatible	= "arm,psci";

		method		= "smc";

		cpu_suspend	= <0x84000001>;

		cpu_off		= <0x84000002>;

		cpu_on		= <0x84000003>;

	};



	soc {

		#address-cells = <1>;

		#size-cells = <1>;

drivers/rapidio/rio_cm.c

+13 −11
Original line number Diff line number Diff line
@@ -1080,8 +1080,8 @@ static int riocm_send_ack(struct rio_channel *ch) 
static struct rio_channel *riocm_ch_accept(u16 ch_id, u16 *new_ch_id,

					   long timeout)

{

	struct rio_channel *ch = NULL;

	struct rio_channel *new_ch = NULL;

	struct rio_channel *ch;

	struct rio_channel *new_ch;

	struct conn_req *req;

	struct cm_peer *peer;

	int found = 0;
@@ -1155,6 +1155,7 @@ static struct rio_channel *riocm_ch_accept(u16 ch_id, u16 *new_ch_id, 


	spin_unlock_bh(&ch->lock);

	riocm_put_channel(ch);

	ch = NULL;

	kfree(req);



	down_read(&rdev_sem);
@@ -1172,7 +1173,7 @@ static struct rio_channel *riocm_ch_accept(u16 ch_id, u16 *new_ch_id, 
	if (!found) {

		/* If peer device object not found, simply ignore the request */

		err = -ENODEV;

		goto err_nodev;

		goto err_put_new_ch;

	}



	new_ch->rdev = peer->rdev;
@@ -1184,15 +1185,16 @@ static struct rio_channel *riocm_ch_accept(u16 ch_id, u16 *new_ch_id, 


	*new_ch_id = new_ch->id;

	return new_ch;

err_put:

	riocm_put_channel(ch);

err_nodev:

	if (new_ch) {



err_put_new_ch:

	spin_lock_bh(&idr_lock);

	idr_remove(&ch_idr, new_ch->id);

	spin_unlock_bh(&idr_lock);

	riocm_put_channel(new_ch);

	}



err_put:

	if (ch)

		riocm_put_channel(ch);

	*new_ch_id = 0;

	return ERR_PTR(err);

}

mm/page_alloc.c

+35 −15
Original line number Diff line number Diff line
@@ -4757,6 +4757,8 @@ int local_memory_node(int node) 
}

#endif



static void setup_min_unmapped_ratio(void);

static void setup_min_slab_ratio(void);

#else	/* CONFIG_NUMA */



static void set_zonelist_order(void)
@@ -5878,9 +5880,6 @@ static void __paginginit free_area_init_core(struct pglist_data *pgdat) 
		zone->managed_pages = is_highmem_idx(j) ? realsize : freesize;

#ifdef CONFIG_NUMA

		zone->node = nid;

		pgdat->min_unmapped_pages += (freesize*sysctl_min_unmapped_ratio)

						/ 100;

		pgdat->min_slab_pages += (freesize * sysctl_min_slab_ratio) / 100;

#endif

		zone->name = zone_names[j];

		zone->zone_pgdat = pgdat;
@@ -6801,6 +6800,12 @@ int __meminit init_per_zone_wmark_min(void) 
	setup_per_zone_wmarks();

	refresh_zone_stat_thresholds();

	setup_per_zone_lowmem_reserve();



#ifdef CONFIG_NUMA

	setup_min_unmapped_ratio();

	setup_min_slab_ratio();

#endif



	return 0;

}

core_initcall(init_per_zone_wmark_min)
@@ -6842,43 +6847,58 @@ int watermark_scale_factor_sysctl_handler(struct ctl_table *table, int write, 
}



#ifdef CONFIG_NUMA

static void setup_min_unmapped_ratio(void)

{

	pg_data_t *pgdat;

	struct zone *zone;



	for_each_online_pgdat(pgdat)

		pgdat->min_unmapped_pages = 0;



	for_each_zone(zone)

		zone->zone_pgdat->min_unmapped_pages += (zone->managed_pages *

				sysctl_min_unmapped_ratio) / 100;

}





int sysctl_min_unmapped_ratio_sysctl_handler(struct ctl_table *table, int write,

	void __user *buffer, size_t *length, loff_t *ppos)

{

	struct pglist_data *pgdat;

	struct zone *zone;

	int rc;



	rc = proc_dointvec_minmax(table, write, buffer, length, ppos);

	if (rc)

		return rc;



	setup_min_unmapped_ratio();



	return 0;

}



static void setup_min_slab_ratio(void)

{

	pg_data_t *pgdat;

	struct zone *zone;



	for_each_online_pgdat(pgdat)

		pgdat->min_slab_pages = 0;



	for_each_zone(zone)

		zone->zone_pgdat->min_unmapped_pages += (zone->managed_pages *

				sysctl_min_unmapped_ratio) / 100;

	return 0;

		zone->zone_pgdat->min_slab_pages += (zone->managed_pages *

				sysctl_min_slab_ratio) / 100;

}



int sysctl_min_slab_ratio_sysctl_handler(struct ctl_table *table, int write,

	void __user *buffer, size_t *length, loff_t *ppos)

{

	struct pglist_data *pgdat;

	struct zone *zone;

	int rc;



	rc = proc_dointvec_minmax(table, write, buffer, length, ppos);

	if (rc)

		return rc;



	for_each_online_pgdat(pgdat)

		pgdat->min_slab_pages = 0;

	setup_min_slab_ratio();



	for_each_zone(zone)

		zone->zone_pgdat->min_slab_pages += (zone->managed_pages *

				sysctl_min_slab_ratio) / 100;

	return 0;

}

#endif

mm/rmap.c

+4 −3
Original line number Diff line number Diff line
@@ -1284,8 +1284,9 @@ void page_add_file_rmap(struct page *page, bool compound) 
		VM_BUG_ON_PAGE(!PageSwapBacked(page), page);

		__inc_node_page_state(page, NR_SHMEM_PMDMAPPED);

	} else {

		if (PageTransCompound(page)) {

			VM_BUG_ON_PAGE(!PageLocked(page), page);

		if (PageTransCompound(page) && page_mapping(page)) {

			VM_WARN_ON_ONCE(!PageLocked(page));



			SetPageDoubleMap(compound_head(page));

			if (PageMlocked(page))

				clear_page_mlock(compound_head(page));
@@ -1303,7 +1304,7 @@ static void page_remove_file_rmap(struct page *page, bool compound) 
{

	int i, nr = 1;



	VM_BUG_ON_PAGE(compound && !PageTransHuge(page), page);

	VM_BUG_ON_PAGE(compound && !PageHead(page), page);

	lock_page_memcg(page);



	/* Hugepages are not counted in NR_FILE_MAPPED for now. */

mm/shmem.c

+3 −1
Original line number Diff line number Diff line
@@ -3975,7 +3975,9 @@ static ssize_t shmem_enabled_store(struct kobject *kobj, 


struct kobj_attribute shmem_enabled_attr =

	__ATTR(shmem_enabled, 0644, shmem_enabled_show, shmem_enabled_store);

#endif /* CONFIG_TRANSPARENT_HUGE_PAGECACHE && CONFIG_SYSFS */



#ifdef CONFIG_TRANSPARENT_HUGE_PAGECACHE

bool shmem_huge_enabled(struct vm_area_struct *vma)

{

	struct inode *inode = file_inode(vma->vm_file);
@@ -4006,7 +4008,7 @@ bool shmem_huge_enabled(struct vm_area_struct *vma) 
			return false;

	}

}

#endif /* CONFIG_TRANSPARENT_HUGE_PAGECACHE && CONFIG_SYSFS */

#endif /* CONFIG_TRANSPARENT_HUGE_PAGECACHE */



#else /* !CONFIG_SHMEM */

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