Christian Borntraeger 7a2653612b s390/gmap: return proper error code on ksm unsharing ... If a signal is pending we might return -ENOMEM instead of -EINTR. We should propagate the proper error during KSM unsharing. unmerge_ksm_pages returns -ERESTARTSYS on signal_pending. This gets translated by entry.S to -EINTR. It is important to get this error code so that userspace can retry. To make this clearer we also add -EINTR to the documentation of the PV_ENABLE call, which calls unmerge_ksm_pages. Fixes: 3ac8e38015 ("s390/mm: disable KSM for storage key enabled pages") Reviewed-by: Janosch Frank <frankja@linux.vnet.ibm.com> Reported-by: Marc Hartmayer <mhartmay@linux.ibm.com> Tested-by: Marc Hartmayer <mhartmay@linux.ibm.com> Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>		2020-03-27 06:42:53 -04:00
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cmm.c	s390/cmm: fix information leak in cmm_timeout_handler()	2019-10-31 17:26:48 +01:00
dump_pagetables.c	s390/mm: fix dump_pagetables top level page table walking	2019-08-06 13:58:34 +02:00
extmem.c	s390/extmem: use refcount_t for refcount	2019-08-21 12:41:43 +02:00
fault.c	s390/mm: add (non)secure page access exceptions handlers	2020-02-27 19:44:40 +01:00
gmap.c	s390/gmap: return proper error code on ksm unsharing	2020-03-27 06:42:53 -04:00
hugetlbpage.c	s390/mm: fix dynamic pagetable upgrade for hugetlbfs	2020-01-30 13:07:54 +01:00
init.c	mm/memory_hotplug: shrink zones when offlining memory	2020-01-04 13:55:08 -08:00
kasan_init.c	s390/kasan: add KASAN_VMALLOC support	2019-12-11 19:56:59 +01:00
maccess.c	s390: disable preemption when switching to nodat stack with CALL_ON_STACK	2019-11-30 10:52:45 +01:00
Makefile	s390/mm: convert to the generic get_user_pages_fast code	2019-04-23 16:30:04 +02:00
mmap.c	s390/mm: mmap base does not depend on ADDR_NO_RANDOMIZE personality	2019-06-04 15:03:53 +02:00
page-states.c	s390/cmma: reuse kstrtobool for option value parsing	2019-08-26 12:51:18 +02:00
pageattr.c	s390/mm: Clear huge page storage keys on enable_skey	2018-07-30 11:20:18 +01:00
pgalloc.c	mm: treewide: clarify pgtable_page_{ctor,dtor}() naming	2019-09-26 10:10:44 -07:00
pgtable.c	s390/mm: silence compiler warning when compiling without CONFIG_PGSTE	2019-04-10 17:48:28 +02:00
vmem.c	s390/kernel: introduce .dma sections	2019-04-29 10:47:10 +02:00