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| author | Christian Borntraeger | 2016-02-03 11:12:34 +0100 |
|---|---|---|
| committer | Christian Borntraeger | 2016-02-10 13:12:57 +0100 |
| commit | 1763f8d09d522b3ac998229dcf038476e88b78fc (patch) | |
| tree | 6831f58a13676ad637a34f4d815993251989a886 /arch/s390/kvm/kvm-s390.c | |
| parent | KVM: s390: do not block CPU on dirty logging (diff) | |
| download | kernel-qcow2-linux-1763f8d09d522b3ac998229dcf038476e88b78fc.tar.gz kernel-qcow2-linux-1763f8d09d522b3ac998229dcf038476e88b78fc.tar.xz kernel-qcow2-linux-1763f8d09d522b3ac998229dcf038476e88b78fc.zip | |
KVM: s390: bail out early on fatal signal in dirty logging
A KVM_GET_DIRTY_LOG ioctl might take a long time.
This can result in fatal signals seemingly being ignored.
Lets bail out during the dirty bit sync, if a fatal signal
is pending.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/kvm/kvm-s390.c')
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index bb99ca28eb66..28bd5ea1b08f 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -281,6 +281,8 @@ static void kvm_s390_sync_dirty_log(struct kvm *kvm, if (gmap_test_and_clear_dirty(address, gmap)) mark_page_dirty(kvm, cur_gfn); + if (fatal_signal_pending(current)) + return; cond_resched(); } } |