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-rw-r--r--net/xfrm/xfrm_state.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index f50ee9badf47..96f2088e7448 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -1462,12 +1462,12 @@ EXPORT_SYMBOL(xfrm_find_acq_byseq);
u32 xfrm_get_acqseq(void)
{
u32 res;
- static u32 acqseq;
- static DEFINE_SPINLOCK(acqseq_lock);
+ static atomic_t acqseq;
+
+ do {
+ res = atomic_inc_return(&acqseq);
+ } while (!res);
- spin_lock_bh(&acqseq_lock);
- res = (++acqseq ? : ++acqseq);
- spin_unlock_bh(&acqseq_lock);
return res;
}
EXPORT_SYMBOL(xfrm_get_acqseq);