Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull more s390 updates from Martin Schwidefsky:
 "The second patch set for the 4.14 merge window:

   - Convert the dasd device driver to the blk-mq interface.

   - Provide three zcrypt interfaces for vfio_ap. These will be required
     for KVM guest access to the crypto cards attached via the AP bus.

   - A couple of memory management bug fixes."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/dasd: blk-mq conversion
  s390/mm: use a single lock for the fields in mm_context_t
  s390/mm: fix race on mm->context.flush_mm
  s390/mm: fix local TLB flushing vs. detach of an mm address space
  s390/zcrypt: externalize AP queue interrupt control
  s390/zcrypt: externalize AP config info query
  s390/zcrypt: externalize test AP queue
  s390/mm: use VM_BUG_ON in crst_table_[upgrade|downgrade]

2 files changed, 14 insertions, 14 deletions

diff --git a/arch/s390/mm/gmap.c b/arch/s390/mm/gmap.c
index 9e1494e3d849..2f66290c9b92 100644
--- a/arch/s390/mm/gmap.c
+++ b/arch/s390/mm/gmap.c
@@ -100,14 +100,14 @@ struct gmap *gmap_create(struct mm_struct *mm, unsigned long limit)
 	if (!gmap)
 		return NULL;
 	gmap->mm = mm;
-	spin_lock(&mm->context.gmap_lock);
+	spin_lock(&mm->context.lock);
 	list_add_rcu(&gmap->list, &mm->context.gmap_list);
 	if (list_is_singular(&mm->context.gmap_list))
 		gmap_asce = gmap->asce;
 	else
 		gmap_asce = -1UL;
 	WRITE_ONCE(mm->context.gmap_asce, gmap_asce);
-	spin_unlock(&mm->context.gmap_lock);
+	spin_unlock(&mm->context.lock);
 	return gmap;
 }
 EXPORT_SYMBOL_GPL(gmap_create);
@@ -248,7 +248,7 @@ void gmap_remove(struct gmap *gmap)
 		spin_unlock(&gmap->shadow_lock);
 	}
 	/* Remove gmap from the pre-mm list */
-	spin_lock(&gmap->mm->context.gmap_lock);
+	spin_lock(&gmap->mm->context.lock);
 	list_del_rcu(&gmap->list);
 	if (list_empty(&gmap->mm->context.gmap_list))
 		gmap_asce = 0;
@@ -258,7 +258,7 @@ void gmap_remove(struct gmap *gmap)
 	else
 		gmap_asce = -1UL;
 	WRITE_ONCE(gmap->mm->context.gmap_asce, gmap_asce);
-	spin_unlock(&gmap->mm->context.gmap_lock);
+	spin_unlock(&gmap->mm->context.lock);
 	synchronize_rcu();
 	/* Put reference */
 	gmap_put(gmap);
diff --git a/arch/s390/mm/pgalloc.c b/arch/s390/mm/pgalloc.c
index c5b74dd61197..05f1f27e6708 100644
--- a/arch/s390/mm/pgalloc.c
+++ b/arch/s390/mm/pgalloc.c
@@ -83,7 +83,7 @@ int crst_table_upgrade(struct mm_struct *mm, unsigned long end)
 	int rc, notify;
 
 	/* upgrade should only happen from 3 to 4, 3 to 5, or 4 to 5 levels */
-	BUG_ON(mm->context.asce_limit < _REGION2_SIZE);
+	VM_BUG_ON(mm->context.asce_limit < _REGION2_SIZE);
 	if (end >= TASK_SIZE_MAX)
 		return -ENOMEM;
 	rc = 0;
@@ -124,7 +124,7 @@ void crst_table_downgrade(struct mm_struct *mm)
 	pgd_t *pgd;
 
 	/* downgrade should only happen from 3 to 2 levels (compat only) */
-	BUG_ON(mm->context.asce_limit != _REGION2_SIZE);
+	VM_BUG_ON(mm->context.asce_limit != _REGION2_SIZE);
 
 	if (current->active_mm == mm) {
 		clear_user_asce();
@@ -188,7 +188,7 @@ unsigned long *page_table_alloc(struct mm_struct *mm)
 	/* Try to get a fragment of a 4K page as a 2K page table */
 	if (!mm_alloc_pgste(mm)) {
 		table = NULL;
-		spin_lock_bh(&mm->context.pgtable_lock);
+		spin_lock_bh(&mm->context.lock);
 		if (!list_empty(&mm->context.pgtable_list)) {
 			page = list_first_entry(&mm->context.pgtable_list,
 						struct page, lru);
@@ -203,7 +203,7 @@ unsigned long *page_table_alloc(struct mm_struct *mm)
 				list_del(&page->lru);
 			}
 		}
-		spin_unlock_bh(&mm->context.pgtable_lock);
+		spin_unlock_bh(&mm->context.lock);
 		if (table)
 			return table;
 	}
@@ -227,9 +227,9 @@ unsigned long *page_table_alloc(struct mm_struct *mm)
 		/* Return the first 2K fragment of the page */
 		atomic_set(&page->_mapcount, 1);
 		clear_table(table, _PAGE_INVALID, PAGE_SIZE);
-		spin_lock_bh(&mm->context.pgtable_lock);
+		spin_lock_bh(&mm->context.lock);
 		list_add(&page->lru, &mm->context.pgtable_list);
-		spin_unlock_bh(&mm->context.pgtable_lock);
+		spin_unlock_bh(&mm->context.lock);
 	}
 	return table;
 }
@@ -243,13 +243,13 @@ void page_table_free(struct mm_struct *mm, unsigned long *table)
 	if (!mm_alloc_pgste(mm)) {
 		/* Free 2K page table fragment of a 4K page */
 		bit = (__pa(table) & ~PAGE_MASK)/(PTRS_PER_PTE*sizeof(pte_t));
-		spin_lock_bh(&mm->context.pgtable_lock);
+		spin_lock_bh(&mm->context.lock);
 		mask = atomic_xor_bits(&page->_mapcount, 1U << bit);
 		if (mask & 3)
 			list_add(&page->lru, &mm->context.pgtable_list);
 		else
 			list_del(&page->lru);
-		spin_unlock_bh(&mm->context.pgtable_lock);
+		spin_unlock_bh(&mm->context.lock);
 		if (mask != 0)
 			return;
 	}
@@ -275,13 +275,13 @@ void page_table_free_rcu(struct mmu_gather *tlb, unsigned long *table,
 		return;
 	}
 	bit = (__pa(table) & ~PAGE_MASK) / (PTRS_PER_PTE*sizeof(pte_t));
-	spin_lock_bh(&mm->context.pgtable_lock);
+	spin_lock_bh(&mm->context.lock);
 	mask = atomic_xor_bits(&page->_mapcount, 0x11U << bit);
 	if (mask & 3)
 		list_add_tail(&page->lru, &mm->context.pgtable_list);
 	else
 		list_del(&page->lru);
-	spin_unlock_bh(&mm->context.pgtable_lock);
+	spin_unlock_bh(&mm->context.lock);
 	table = (unsigned long *) (__pa(table) | (1U << bit));
 	tlb_remove_table(tlb, table);
 }