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authorLinus Torvalds <torvalds@linux-foundation.org>2011-07-22 14:50:12 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-07-22 14:50:12 -0700
commitece236ce2fad9c27a6fd2530f899289025194bce (patch)
tree474b793205872206a2a3f7d409ff9b1f81f3a9a8 /drivers/infiniband/hw/qib/qib_file_ops.c
parent441c196e84b11aad3123baa9320eee7abc6b5c98 (diff)
parent4460207561290c3be7e6c7538f22690028170c1d (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (26 commits) IB/qib: Defer HCA error events to tasklet mlx4_core: Bump the driver version to 1.0 RDMA/cxgb4: Use printk_ratelimited() instead of printk_ratelimit() IB/mlx4: Support PMA counters for IBoE IB/mlx4: Use flow counters on IBoE ports IB/pma: Add include file for IBA performance counters definitions mlx4_core: Add network flow counters mlx4_core: Fix location of counter index in QP context struct mlx4_core: Read extended capabilities into the flags field mlx4_core: Extend capability flags to 64 bits IB/mlx4: Generate GID change events in IBoE code IB/core: Add GID change event RDMA/cma: Don't allow IPoIB port space for IBoE RDMA: Allow for NULL .modify_device() and .modify_port() methods IB/qib: Update active link width IB/qib: Fix potential deadlock with link down interrupt IB/qib: Add sysfs interface to read free contexts IB/mthca: Remove unnecessary read of PCI_CAP_ID_EXP IB/qib: Remove double define IB/qib: Remove unnecessary read of PCI_CAP_ID_EXP ...
Diffstat (limited to 'drivers/infiniband/hw/qib/qib_file_ops.c')
-rw-r--r--drivers/infiniband/hw/qib/qib_file_ops.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/infiniband/hw/qib/qib_file_ops.c b/drivers/infiniband/hw/qib/qib_file_ops.c
index 406fca50d03..26253039d2c 100644
--- a/drivers/infiniband/hw/qib/qib_file_ops.c
+++ b/drivers/infiniband/hw/qib/qib_file_ops.c
@@ -1527,6 +1527,7 @@ done_chk_sdma:
struct qib_filedata *fd = fp->private_data;
const struct qib_ctxtdata *rcd = fd->rcd;
const struct qib_devdata *dd = rcd->dd;
+ unsigned int weight;
if (dd->flags & QIB_HAS_SEND_DMA) {
fd->pq = qib_user_sdma_queue_create(&dd->pcidev->dev,
@@ -1545,8 +1546,8 @@ done_chk_sdma:
* it just means that sooner or later we don't recommend
* a cpu, and let the scheduler do it's best.
*/
- if (!ret && cpus_weight(current->cpus_allowed) >=
- qib_cpulist_count) {
+ weight = cpumask_weight(tsk_cpus_allowed(current));
+ if (!ret && weight >= qib_cpulist_count) {
int cpu;
cpu = find_first_zero_bit(qib_cpulist,
qib_cpulist_count);
@@ -1554,13 +1555,13 @@ done_chk_sdma:
__set_bit(cpu, qib_cpulist);
fd->rec_cpu_num = cpu;
}
- } else if (cpus_weight(current->cpus_allowed) == 1 &&
- test_bit(first_cpu(current->cpus_allowed),
+ } else if (weight == 1 &&
+ test_bit(cpumask_first(tsk_cpus_allowed(current)),
qib_cpulist))
qib_devinfo(dd->pcidev, "%s PID %u affinity "
"set to cpu %d; already allocated\n",
current->comm, current->pid,
- first_cpu(current->cpus_allowed));
+ cpumask_first(tsk_cpus_allowed(current)));
}
mutex_unlock(&qib_mutex);
@@ -1904,8 +1905,9 @@ int qib_set_uevent_bits(struct qib_pportdata *ppd, const int evtbit)
struct qib_ctxtdata *rcd;
unsigned ctxt;
int ret = 0;
+ unsigned long flags;
- spin_lock(&ppd->dd->uctxt_lock);
+ spin_lock_irqsave(&ppd->dd->uctxt_lock, flags);
for (ctxt = ppd->dd->first_user_ctxt; ctxt < ppd->dd->cfgctxts;
ctxt++) {
rcd = ppd->dd->rcd[ctxt];
@@ -1924,7 +1926,7 @@ int qib_set_uevent_bits(struct qib_pportdata *ppd, const int evtbit)
ret = 1;
break;
}
- spin_unlock(&ppd->dd->uctxt_lock);
+ spin_unlock_irqrestore(&ppd->dd->uctxt_lock, flags);
return ret;
}