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-rw-r--r--net/xfrm/xfrm_state.c19
1 files changed, 6 insertions, 13 deletions
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 2e2e95d2a06fce..7e34fc94f668b2 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -1307,14 +1307,8 @@ static void xfrm_hash_grow_check(struct net *net, int have_hash_collision)
static void xfrm_state_look_at(struct xfrm_policy *pol, struct xfrm_state *x,
const struct flowi *fl, unsigned short family,
struct xfrm_state **best, int *acq_in_progress,
- int *error)
+ int *error, unsigned int pcpu_id)
{
- /* We need the cpu id just as a lookup key,
- * we don't require it to be stable.
- */
- unsigned int pcpu_id = get_cpu();
- put_cpu();
-
/* Resolution logic:
* 1. There is a valid state with matching selector. Done.
* 2. Valid state with inappropriate selector. Skip.
@@ -1381,8 +1375,7 @@ xfrm_state_find(const xfrm_address_t *daddr, const xfrm_address_t *saddr,
/* We need the cpu id just as a lookup key,
* we don't require it to be stable.
*/
- pcpu_id = get_cpu();
- put_cpu();
+ pcpu_id = raw_smp_processor_id();
to_put = NULL;
@@ -1402,7 +1395,7 @@ xfrm_state_find(const xfrm_address_t *daddr, const xfrm_address_t *saddr,
tmpl->id.proto == x->id.proto &&
(tmpl->id.spi == x->id.spi || !tmpl->id.spi))
xfrm_state_look_at(pol, x, fl, encap_family,
- &best, &acquire_in_progress, &error);
+ &best, &acquire_in_progress, &error, pcpu_id);
}
if (best)
@@ -1419,7 +1412,7 @@ xfrm_state_find(const xfrm_address_t *daddr, const xfrm_address_t *saddr,
tmpl->id.proto == x->id.proto &&
(tmpl->id.spi == x->id.spi || !tmpl->id.spi))
xfrm_state_look_at(pol, x, fl, family,
- &best, &acquire_in_progress, &error);
+ &best, &acquire_in_progress, &error, pcpu_id);
}
cached:
@@ -1460,7 +1453,7 @@ cached:
tmpl->id.proto == x->id.proto &&
(tmpl->id.spi == x->id.spi || !tmpl->id.spi))
xfrm_state_look_at(pol, x, fl, family,
- &best, &acquire_in_progress, &error);
+ &best, &acquire_in_progress, &error, pcpu_id);
}
if (best || acquire_in_progress)
goto found;
@@ -1495,7 +1488,7 @@ cached:
tmpl->id.proto == x->id.proto &&
(tmpl->id.spi == x->id.spi || !tmpl->id.spi))
xfrm_state_look_at(pol, x, fl, family,
- &best, &acquire_in_progress, &error);
+ &best, &acquire_in_progress, &error, pcpu_id);
}
found: