diff options
Diffstat (limited to 'arch/s390/mm')
| -rw-r--r-- | arch/s390/mm/extmem.c | 4 | ||||
| -rw-r--r-- | arch/s390/mm/gmap.c | 2 | ||||
| -rw-r--r-- | arch/s390/mm/pgalloc.c | 2 |
3 files changed, 5 insertions, 3 deletions
diff --git a/arch/s390/mm/extmem.c b/arch/s390/mm/extmem.c index 02042b6b66bf..e6665a6e105e 100644 --- a/arch/s390/mm/extmem.c +++ b/arch/s390/mm/extmem.c @@ -79,7 +79,7 @@ struct qin64 { struct dcss_segment { struct list_head list; char dcss_name[8]; - char res_name[15]; + char res_name[16]; unsigned long start_addr; unsigned long end; atomic_t ref_count; @@ -432,7 +432,7 @@ __segment_load (char *name, int do_nonshared, unsigned long *addr, unsigned long memcpy(&seg->res_name, seg->dcss_name, 8); EBCASC(seg->res_name, 8); seg->res_name[8] = '\0'; - strncat(seg->res_name, " (DCSS)", 7); + strlcat(seg->res_name, " (DCSS)", sizeof(seg->res_name)); seg->res->name = seg->res_name; rc = seg->vm_segtype; if (rc == SEG_TYPE_SC || diff --git a/arch/s390/mm/gmap.c b/arch/s390/mm/gmap.c index cb2cd04e6698..b6c85b760305 100644 --- a/arch/s390/mm/gmap.c +++ b/arch/s390/mm/gmap.c @@ -686,6 +686,8 @@ void gmap_discard(struct gmap *gmap, unsigned long from, unsigned long to) vmaddr |= gaddr & ~PMD_MASK; /* Find vma in the parent mm */ vma = find_vma(gmap->mm, vmaddr); + if (!vma) + continue; size = min(to - gaddr, PMD_SIZE - (gaddr & ~PMD_MASK)); zap_page_range(vma, vmaddr, size, NULL); } diff --git a/arch/s390/mm/pgalloc.c b/arch/s390/mm/pgalloc.c index 995f78532cc2..781a044e1702 100644 --- a/arch/s390/mm/pgalloc.c +++ b/arch/s390/mm/pgalloc.c @@ -26,7 +26,7 @@ static struct ctl_table page_table_sysctl[] = { .data = &page_table_allocate_pgste, .maxlen = sizeof(int), .mode = S_IRUGO | S_IWUSR, - .proc_handler = proc_dointvec, + .proc_handler = proc_dointvec_minmax, .extra1 = &page_table_allocate_pgste_min, .extra2 = &page_table_allocate_pgste_max, }, |