IB/ipath: Fix lockdep error upon "ifconfig ibN down"
Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
parent
7a26c47412
commit
3d27b00457
|
@ -1202,6 +1202,7 @@ static struct ib_ah *ipath_create_ah(struct ib_pd *pd,
|
||||||
struct ipath_ah *ah;
|
struct ipath_ah *ah;
|
||||||
struct ib_ah *ret;
|
struct ib_ah *ret;
|
||||||
struct ipath_ibdev *dev = to_idev(pd->device);
|
struct ipath_ibdev *dev = to_idev(pd->device);
|
||||||
|
unsigned long flags;
|
||||||
|
|
||||||
/* A multicast address requires a GRH (see ch. 8.4.1). */
|
/* A multicast address requires a GRH (see ch. 8.4.1). */
|
||||||
if (ah_attr->dlid >= IPATH_MULTICAST_LID_BASE &&
|
if (ah_attr->dlid >= IPATH_MULTICAST_LID_BASE &&
|
||||||
|
@ -1228,16 +1229,16 @@ static struct ib_ah *ipath_create_ah(struct ib_pd *pd,
|
||||||
goto bail;
|
goto bail;
|
||||||
}
|
}
|
||||||
|
|
||||||
spin_lock(&dev->n_ahs_lock);
|
spin_lock_irqsave(&dev->n_ahs_lock, flags);
|
||||||
if (dev->n_ahs_allocated == ib_ipath_max_ahs) {
|
if (dev->n_ahs_allocated == ib_ipath_max_ahs) {
|
||||||
spin_unlock(&dev->n_ahs_lock);
|
spin_unlock_irqrestore(&dev->n_ahs_lock, flags);
|
||||||
kfree(ah);
|
kfree(ah);
|
||||||
ret = ERR_PTR(-ENOMEM);
|
ret = ERR_PTR(-ENOMEM);
|
||||||
goto bail;
|
goto bail;
|
||||||
}
|
}
|
||||||
|
|
||||||
dev->n_ahs_allocated++;
|
dev->n_ahs_allocated++;
|
||||||
spin_unlock(&dev->n_ahs_lock);
|
spin_unlock_irqrestore(&dev->n_ahs_lock, flags);
|
||||||
|
|
||||||
/* ib_create_ah() will initialize ah->ibah. */
|
/* ib_create_ah() will initialize ah->ibah. */
|
||||||
ah->attr = *ah_attr;
|
ah->attr = *ah_attr;
|
||||||
|
@ -1258,10 +1259,11 @@ static int ipath_destroy_ah(struct ib_ah *ibah)
|
||||||
{
|
{
|
||||||
struct ipath_ibdev *dev = to_idev(ibah->device);
|
struct ipath_ibdev *dev = to_idev(ibah->device);
|
||||||
struct ipath_ah *ah = to_iah(ibah);
|
struct ipath_ah *ah = to_iah(ibah);
|
||||||
|
unsigned long flags;
|
||||||
|
|
||||||
spin_lock(&dev->n_ahs_lock);
|
spin_lock_irqsave(&dev->n_ahs_lock, flags);
|
||||||
dev->n_ahs_allocated--;
|
dev->n_ahs_allocated--;
|
||||||
spin_unlock(&dev->n_ahs_lock);
|
spin_unlock_irqrestore(&dev->n_ahs_lock, flags);
|
||||||
|
|
||||||
kfree(ah);
|
kfree(ah);
|
||||||
|
|
||||||
|
|
Loading…
Reference in a new issue