AcoSail/kernel_optimize_test
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7a2653612b
kernel_optimize_test/arch/s390
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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
..
appldata
boot s390/protvirt: introduce host side setup 2020-02-27 19:44:40 +01:00
configs
crypto s390/pkey/zcrypt: Support EP11 AES secure keys 2020-01-30 13:07:56 +01:00
hypfs fs_parse: fold fs_parameter_desc/fs_parameter_spec 2020-02-07 14:48:37 -05:00
include KVM: s390: mark sie block as 512 byte aligned 2020-03-23 18:30:33 +01:00
kernel s390/protvirt: Add sysfs firmware interface for Ultravisor information 2020-02-27 19:44:40 +01:00
kvm KVM: s390: Use fallthrough; 2020-03-23 18:30:07 +01:00
lib s390/test_unwind: fix spelling mistake "reqister" -> "register" 2019-12-11 19:53:23 +01:00
mm s390/gmap: return proper error code on ksm unsharing 2020-03-27 06:42:53 -04:00
net
numa
oprofile
pci s390/pci: Fix possible deadlock in recover_store() 2020-01-22 13:05:34 +01:00
purgatory s390/purgatory: do not build purgatory with kcov, kasan and friends 2019-12-18 23:29:26 +01:00
scripts
tools kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kbuild
Kconfig s390 updates for the 5.6 merge window #2 2020-02-05 17:33:35 +00:00
Kconfig.debug
Makefile s390: adjust -mpacked-stack support check for clang 10 2020-01-22 13:05:35 +01:00