Gerald Schaefer ba385c0594 s390/mm: fix write access check in gup_huge_pmd() ... The check for the _SEGMENT_ENTRY_PROTECT bit in gup_huge_pmd() is the wrong way around. It must not be set for write==1, and not be checked for write==0. Fix this similar to how it was fixed for ptes long time ago in commit 25591b0703 ("[S390] fix get_user_pages_fast"). One impact of this bug would be unnecessarily using the gup slow path for write==0 on r/w mappings. A potentially more severe impact would be that gup_huge_pmd() will succeed for write==1 on r/o mappings. Cc: <stable@vger.kernel.org> Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>		2017-09-19 08:36:20 +02:00
..
cmm.c
dump_pagetables.c
extmem.c
fault.c	s390/mm: use new mm defines instead of magic values	2017-07-26 08:25:09 +02:00
gmap.c	s390/mm: use a single lock for the fields in mm_context_t	2017-09-06 09:24:43 +02:00
gup.c	s390/mm: fix write access check in gup_huge_pmd()	2017-09-19 08:36:20 +02:00
hugetlbpage.c	mm/hugetlb: add size parameter to huge_pte_offset()	2017-07-06 16:24:34 -07:00
init.c	s390/mm: prevent memory offline for memory blocks with cma areas	2017-08-09 09:09:28 -04:00
maccess.c
Makefile
mem_detect.c
mmap.c	s390/mm: fix BUG_ON in crst_table_upgrade	2017-08-31 14:03:21 +02:00
page-states.c	s390/mm: tag normal pages vs pages used in page tables	2017-07-25 06:55:28 +02:00
pageattr.c	s390/mm,vmem: simplify region and segment table allocation code	2017-07-26 08:25:12 +02:00
pgalloc.c	s390/mm: use a single lock for the fields in mm_context_t	2017-09-06 09:24:43 +02:00
pgtable.c	KVM: s390: Fixes and features for 4.14	2017-09-07 16:46:46 +02:00
vmem.c	s390/mm,vmem: simplify region and segment table allocation code	2017-07-26 08:25:12 +02:00