2011-05-19 01:07:19

by KOSAKI Motohiro

Subject: [PATCH] infiniband, qib: convert old cpumask api into new one.

Adapt new APIs. we plan to remove old one later and plan to
change current->cpus_allowed implementation.

No functional change.

Signed-off-by: KOSAKI Motohiro <[email protected]>
Cc: Roland Dreier <[email protected]>
Cc: Sean Hefty <[email protected]>
Cc: Hal Rosenstock <[email protected]>
Cc: [email protected]
Cc: Mike Marciniszyn <[email protected]>
Cc: Ralph Campbell <[email protected]>
---
drivers/infiniband/hw/qib/qib_file_ops.c | 11 ++++++-----
1 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/infiniband/hw/qib/qib_file_ops.c b/drivers/infiniband/hw/qib/qib_file_ops.c
index de7d17d..dd9e1a2 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);
--
1.7.3.1

2011-05-31 21:21:44

by Mike Marciniszyn

Subject: RE: [PATCH] infiniband, qib: convert old cpumask api into new one.

>
> Adapt new APIs. we plan to remove old one later and plan to
> change current->cpus_allowed implementation.
>
> No functional change.

Thanks for the patch!

Acked-by: Mike Marciniszyn <[email protected]>

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