Commit df501100 authored by Linus Torvalds's avatar Linus Torvalds

Merge tag 'perf-urgent-2021-06-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 perf fix from Ingo Molnar:
 "An LBR buffer fix for code that probably only worked accidentally"

* tag 'perf-urgent-2021-06-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/intel/lbr: Zero the xstate buffer on allocation
parents c0e45785 7f049fbd
......@@ -731,7 +731,8 @@ void reserve_lbr_buffers(void)
if (!kmem_cache || cpuc->lbr_xsave)
continue;
cpuc->lbr_xsave = kmem_cache_alloc_node(kmem_cache, GFP_KERNEL,
cpuc->lbr_xsave = kmem_cache_alloc_node(kmem_cache,
GFP_KERNEL | __GFP_ZERO,
cpu_to_node(cpu));
}
}
......
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