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authorJulia Lawall <julia@diku.dk>2010-06-08 18:58:11 +0200
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>2010-06-08 18:58:23 +0200
commit9940fa80ce0e546646b057958960c5c6fd2bbbb2 (patch)
tree78a345cacf2956795809c67ec8947a08451d3c1f
parent3164a3cbf8a6bdf85fe3816fe670b391f31c004a (diff)
[S390] arch/s390/kvm: Use GFP_ATOMIC when a lock is held
The containing function is called from several places. At one of them, in the function __sigp_stop, the spin lock &fi->lock is held. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @gfp exists@ identifier fn; position p; @@ fn(...) { ... when != spin_unlock when any GFP_KERNEL@p ... when any } @locked@ identifier gfp.fn; @@ spin_lock(...) ... when != spin_unlock fn(...) @depends on locked@ position gfp.p; @@ - GFP_KERNEL@p + GFP_ATOMIC // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
-rw-r--r--arch/s390/kvm/sigp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c
index eff3c5989b4..702276f5e2f 100644
--- a/arch/s390/kvm/sigp.c
+++ b/arch/s390/kvm/sigp.c
@@ -113,7 +113,7 @@ static int __inject_sigp_stop(struct kvm_s390_local_interrupt *li, int action)
{
struct kvm_s390_interrupt_info *inti;
- inti = kzalloc(sizeof(*inti), GFP_KERNEL);
+ inti = kzalloc(sizeof(*inti), GFP_ATOMIC);
if (!inti)
return -ENOMEM;
inti->type = KVM_S390_SIGP_STOP;