diff options
| author |   Bryan O'Sullivan <bos@pathscale.com> | 2006-09-28 09:00:24 -0700 |
|---|---|---|
| committer |   Roland Dreier <rolandd@cisco.com> | 2006-09-28 11:17:14 -0700 |
| commit | 3d27b00457167103fb9f7e23fc2454c801a6b8f0 (patch) | |
| tree | 406480c11683d5d587c23cba92cb33aff6a123ef /drivers/infiniband/hw | |
| parent | IB/ipath: Fix races with ib_resize_cq() (diff) | |
| download | linux-dev-3d27b00457167103fb9f7e23fc2454c801a6b8f0.tar.xz linux-dev-3d27b00457167103fb9f7e23fc2454c801a6b8f0.zip | |
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>
Diffstat (limited to 'drivers/infiniband/hw')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_verbs.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c index 56c01938f714..42eaed88c281 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.c +++ b/drivers/infiniband/hw/ipath/ipath_verbs.c @@ -1202,6 +1202,7 @@ static struct ib_ah *ipath_create_ah(struct ib_pd *pd, struct ipath_ah *ah; struct ib_ah *ret; struct ipath_ibdev *dev = to_idev(pd->device); + unsigned long flags; /* A multicast address requires a GRH (see ch. 8.4.1). */ 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; } - spin_lock(&dev->n_ahs_lock); + spin_lock_irqsave(&dev->n_ahs_lock, flags); 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); ret = ERR_PTR(-ENOMEM); goto bail; } 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. */ 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_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--; - spin_unlock(&dev->n_ahs_lock); + spin_unlock_irqrestore(&dev->n_ahs_lock, flags); kfree(ah); |