3 files changed, 12 insertions, 6 deletions

diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
index 64b61bf72e93..547f1a6a35d4 100644
--- a/arch/s390/include/asm/elf.h
+++ b/arch/s390/include/asm/elf.h
@@ -188,7 +188,8 @@ extern char elf_platform[];
 #define SET_PERSONALITY(ex)                                     \
 do {                                                            \
         if (personality(current->personality) != PER_LINUX32)   \
-                set_personality(PER_LINUX);                     \
+                set_personality(PER_LINUX |                     \
+                        (current->personality & ~PER_MASK));    \
         if ((ex).e_ident[EI_CLASS] == ELFCLASS32)               \
                 set_thread_flag(TIF_31BIT);                     \
         else                                                    \
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index f69ff3c13496..5d56c2b95b14 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -303,15 +303,15 @@ int gmap_unmap_segment(struct gmap *gmap, unsigned long to, unsigned long len)
                 /* Walk the guest addr space page table */
                 table = gmap->table + (((to + off) >> 53) & 0x7ff);
                 if (*table & _REGION_ENTRY_INV)
-                        return 0;
+                        goto out;
                 table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
                 table = table + (((to + off) >> 42) & 0x7ff);
                 if (*table & _REGION_ENTRY_INV)
-                        return 0;
+                        goto out;
                 table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
                 table = table + (((to + off) >> 31) & 0x7ff);
                 if (*table & _REGION_ENTRY_INV)
-                        return 0;
+                        goto out;
                 table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
                 table = table + (((to + off) >> 20) & 0x7ff);
 
@@ -319,6 +319,7 @@ int gmap_unmap_segment(struct gmap *gmap, unsigned long to, unsigned long len)
                 flush |= gmap_unlink_segment(gmap, table);
                 *table = _SEGMENT_ENTRY_INV;
         }
+out:
         up_read(&gmap->mm->mmap_sem);
         if (flush)
                 gmap_flush_tlb(gmap);
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index cbde448f9947..eb3140ee821e 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -654,8 +654,8 @@ static struct io_subchannel_private console_priv;
 static int console_subchannel_in_use;
 
 /*
- * Use tpi to get a pending interrupt, call the interrupt handler and
- * return a pointer to the subchannel structure.
+ * Use cio_tpi to get a pending interrupt and call the interrupt handler.
+ * Return non-zero if an interrupt was processed, zero otherwise.
  */
 static int cio_tpi(void)
 {
@@ -667,6 +667,10 @@ static int cio_tpi(void)
         tpi_info = (struct tpi_info *)&S390_lowcore.subchannel_id;
         if (tpi(NULL) != 1)
                 return 0;
+        if (tpi_info->adapter_IO) {
+                do_adapter_IO(tpi_info->isc);
+                return 1;
+        }
         irb = (struct irb *)&S390_lowcore.irb;
         /* Store interrupt response block to lowcore. */
         if (tsch(tpi_info->schid, irb) != 0)