diff options
| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2016-05-19 16:25:30 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2016-06-13 15:58:14 +0200 |
| commit | 3e76ee99b095e5bee71165fda5edbe6b66b39700 (patch) | |
| tree | 48a2b24b6fee363593b53d0d568b20a7e3a62401 /arch/s390/mm/pageattr.c | |
| parent | 5aa29975e81851b7d48cb79c0c95d95360bfd9a6 (diff) | |
s390/mm: always use PAGE_KERNEL when mapping pages
Always use PAGE_KERNEL when re-enabling pages within the kernel
mapping due to debug pagealloc. Without using this pgprot value
pte_mkwrite() and pte_wrprotect() won't work on such mappings after an
unmap -> map cycle anymore.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/mm/pageattr.c')
| -rw-r--r-- | arch/s390/mm/pageattr.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/mm/pageattr.c b/arch/s390/mm/pageattr.c index f2a5c29a97e9..e67a8f712e19 100644 --- a/arch/s390/mm/pageattr.c +++ b/arch/s390/mm/pageattr.c @@ -138,7 +138,7 @@ void __kernel_map_pages(struct page *page, int numpages, int enable) nr = min(numpages - i, nr); if (enable) { for (j = 0; j < nr; j++) { - pte_val(*pte) = __pa(address); + pte_val(*pte) = address | pgprot_val(PAGE_KERNEL); address += PAGE_SIZE; pte++; } |