Commit-ID: 8de07bbdede03598801cf33ab23dcbcd28a918d2 Gitweb: http://git.kernel.org/tip/8de07bbdede03598801cf33ab23dcbcd28a918d2 Author: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx> AuthorDate: Wed, 4 Mar 2009 17:36:57 -0800 Committer: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx> CommitDate: Mon, 30 Mar 2009 09:25:34 -0700 xen/mmu: weaken flush_tlb_other test Impact: fixes crashing bug There's no particular problem with getting an empty cpu mask, so just shortcut-return if we get one. Avoids crash reported by Christophe Saout <christophe@xxxxxxxx> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx> --- arch/x86/xen/mmu.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index df87c80..e425a32 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -1293,8 +1293,8 @@ static void xen_flush_tlb_others(const struct cpumask *cpus, } *args; struct multicall_space mcs; - BUG_ON(cpumask_empty(cpus)); - BUG_ON(!mm); + if (cpumask_empty(cpus)) + return; /* nothing to do */ mcs = xen_mc_entry(sizeof(*args)); args = mcs.args; -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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