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authorLinus Torvalds <torvalds@linux-foundation.org>2017-01-13 17:06:24 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-13 17:06:24 -0800
commit406732c932d47715395345ba036a3d58341cad55 (patch)
treeea4060958d1a6d18417d6088a523d47f72656ffb /kernel
parenta65c92597dc7556eaa219a70336d66c058a9627c (diff)
parent33ab91103b3415e12457e3104f0e4517ce12d0f3 (diff)
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini: - fix for module unload vs deferred jump labels (note: there might be other buggy modules!) - two NULL pointer dereferences from syzkaller - also syzkaller: fix emulation of fxsave/fxrstor/sgdt/sidt, problem made worse during this merge window, "just" kernel memory leak on releases - fix emulation of "mov ss" - somewhat serious on AMD, less so on Intel * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86: fix emulation of "MOV SS, null selector" KVM: x86: fix NULL deref in vcpu_scan_ioapic KVM: eventfd: fix NULL deref irqbypass consumer KVM: x86: Introduce segmented_write_std KVM: x86: flush pending lapic jump label updates on module unload jump_labels: API for flushing deferred jump label updates
Diffstat (limited to 'kernel')
-rw-r--r--kernel/jump_label.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/jump_label.c b/kernel/jump_label.c
index 93ad6c1fb9b6..a9b8cf500591 100644
--- a/kernel/jump_label.c
+++ b/kernel/jump_label.c
@@ -182,6 +182,13 @@ void static_key_slow_dec_deferred(struct static_key_deferred *key)
}
EXPORT_SYMBOL_GPL(static_key_slow_dec_deferred);
+void static_key_deferred_flush(struct static_key_deferred *key)
+{
+ STATIC_KEY_CHECK_USE();
+ flush_delayed_work(&key->work);
+}
+EXPORT_SYMBOL_GPL(static_key_deferred_flush);
+
void jump_label_rate_limit(struct static_key_deferred *key,
unsigned long rl)
{