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authorMark Brown <broonie@kernel.org>2017-11-28 16:19:52 +0000
committerMark Brown <broonie@kernel.org>2017-11-28 16:19:52 +0000
commit69830d3909849dee33b9a2de88ece3d59c75a1b8 (patch)
tree67e22ac989e782ddc104f186dee54d1675e76923 /arch/s390/mm/pgalloc.c
parentaf1b1cefd735c919d3185ce06b549c2b121067ba (diff)
parentef2e8175eb19011f756469d4d14f4207bf7f289c (diff)
Merge branch 'topic/disconnect' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-rcar
Diffstat (limited to 'arch/s390/mm/pgalloc.c')
-rw-r--r--arch/s390/mm/pgalloc.c18
1 files changed, 8 insertions, 10 deletions
diff --git a/arch/s390/mm/pgalloc.c b/arch/s390/mm/pgalloc.c
index cc2faffa7d6e..434a9564917b 100644
--- a/arch/s390/mm/pgalloc.c
+++ b/arch/s390/mm/pgalloc.c
@@ -71,10 +71,8 @@ static void __crst_table_upgrade(void *arg)
{
struct mm_struct *mm = arg;
- if (current->active_mm == mm) {
- clear_user_asce();
+ if (current->active_mm == mm)
set_user_asce(mm);
- }
__tlb_flush_local();
}
@@ -159,13 +157,13 @@ static inline unsigned int atomic_xor_bits(atomic_t *v, unsigned int bits)
struct page *page_table_alloc_pgste(struct mm_struct *mm)
{
struct page *page;
- unsigned long *table;
+ u64 *table;
page = alloc_page(GFP_KERNEL);
if (page) {
- table = (unsigned long *) page_to_phys(page);
- clear_table(table, _PAGE_INVALID, PAGE_SIZE/2);
- clear_table(table + PTRS_PER_PTE, 0, PAGE_SIZE/2);
+ table = (u64 *)page_to_phys(page);
+ memset64(table, _PAGE_INVALID, PTRS_PER_PTE);
+ memset64(table + PTRS_PER_PTE, 0, PTRS_PER_PTE);
}
return page;
}
@@ -222,12 +220,12 @@ unsigned long *page_table_alloc(struct mm_struct *mm)
if (mm_alloc_pgste(mm)) {
/* Return 4K page table with PGSTEs */
atomic_set(&page->_mapcount, 3);
- clear_table(table, _PAGE_INVALID, PAGE_SIZE/2);
- clear_table(table + PTRS_PER_PTE, 0, PAGE_SIZE/2);
+ memset64((u64 *)table, _PAGE_INVALID, PTRS_PER_PTE);
+ memset64((u64 *)table + PTRS_PER_PTE, 0, PTRS_PER_PTE);
} else {
/* Return the first 2K fragment of the page */
atomic_set(&page->_mapcount, 1);
- clear_table(table, _PAGE_INVALID, PAGE_SIZE);
+ memset64((u64 *)table, _PAGE_INVALID, 2 * PTRS_PER_PTE);
spin_lock_bh(&mm->context.lock);
list_add(&page->lru, &mm->context.pgtable_list);
spin_unlock_bh(&mm->context.lock);