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Subject[PATCH 16/25] staging: lustre: libcfs: rename cpumask_var_t variables to *_mask
Date
From: Dmitry Eremin <dmitry.eremin@intel.com>

Because we handle both cpu mask as well as core identifiers it can
easily be confused. To avoid this rename various cpumask_var_t to
have appended *_mask to their names.

Signed-off-by: Dmitry Eremin <dmitry.eremin@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8703
Reviewed-on: https://review.whamcloud.com/23222
Reviewed-by: Amir Shehata <amir.shehata@intel.com>
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
---
.../staging/lustre/lnet/libcfs/linux/linux-cpu.c | 62 +++++++++++-----------
1 file changed, 31 insertions(+), 31 deletions(-)

diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c
index b985b3d..ae5ff58 100644
--- a/drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c
+++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c
@@ -685,23 +685,23 @@ int cfs_cpt_bind(struct cfs_cpt_table *cptab, int cpt)
* We always prefer to choose CPU in the same core/socket.
*/
static int cfs_cpt_choose_ncpus(struct cfs_cpt_table *cptab, int cpt,
- cpumask_t *node, int number)
+ cpumask_t *node_mask, int number)
{
- cpumask_var_t socket;
- cpumask_var_t core;
+ cpumask_var_t socket_mask;
+ cpumask_var_t core_mask;
int rc = 0;
int cpu;

LASSERT(number > 0);

- if (number >= cpumask_weight(node)) {
- while (!cpumask_empty(node)) {
- cpu = cpumask_first(node);
+ if (number >= cpumask_weight(node_mask)) {
+ while (!cpumask_empty(node_mask)) {
+ cpu = cpumask_first(node_mask);

rc = cfs_cpt_set_cpu(cptab, cpt, cpu);
if (!rc)
return -EINVAL;
- cpumask_clear_cpu(cpu, node);
+ cpumask_clear_cpu(cpu, node_mask);
}
return 0;
}
@@ -711,34 +711,34 @@ static int cfs_cpt_choose_ncpus(struct cfs_cpt_table *cptab, int cpt,
* As we cannot initialize a cpumask_var_t, we need
* to alloc both before we can risk trying to free either
*/
- if (!zalloc_cpumask_var(&socket, GFP_NOFS))
+ if (!zalloc_cpumask_var(&socket_mask, GFP_NOFS))
rc = -ENOMEM;
- if (!zalloc_cpumask_var(&core, GFP_NOFS))
+ if (!zalloc_cpumask_var(&core_mask, GFP_NOFS))
rc = -ENOMEM;
if (rc)
goto out;

- while (!cpumask_empty(node)) {
- cpu = cpumask_first(node);
+ while (!cpumask_empty(node_mask)) {
+ cpu = cpumask_first(node_mask);

/* get cpumask for cores in the same socket */
- cpumask_copy(socket, topology_core_cpumask(cpu));
- cpumask_and(socket, socket, node);
+ cpumask_copy(socket_mask, topology_core_cpumask(cpu));
+ cpumask_and(socket_mask, socket_mask, node_mask);

- LASSERT(!cpumask_empty(socket));
+ LASSERT(!cpumask_empty(socket_mask));

- while (!cpumask_empty(socket)) {
+ while (!cpumask_empty(socket_mask)) {
int i;

/* get cpumask for hts in the same core */
- cpumask_copy(core, topology_sibling_cpumask(cpu));
- cpumask_and(core, core, node);
+ cpumask_copy(core_mask, topology_sibling_cpumask(cpu));
+ cpumask_and(core_mask, core_mask, node_mask);

- LASSERT(!cpumask_empty(core));
+ LASSERT(!cpumask_empty(core_mask));

- for_each_cpu(i, core) {
- cpumask_clear_cpu(i, socket);
- cpumask_clear_cpu(i, node);
+ for_each_cpu(i, core_mask) {
+ cpumask_clear_cpu(i, socket_mask);
+ cpumask_clear_cpu(i, node_mask);

rc = cfs_cpt_set_cpu(cptab, cpt, i);
if (!rc) {
@@ -749,13 +749,13 @@ static int cfs_cpt_choose_ncpus(struct cfs_cpt_table *cptab, int cpt,
if (!--number)
goto out;
}
- cpu = cpumask_first(socket);
+ cpu = cpumask_first(socket_mask);
}
}

out:
- free_cpumask_var(socket);
- free_cpumask_var(core);
+ free_cpumask_var(socket_mask);
+ free_cpumask_var(core_mask);
return rc;
}

@@ -806,7 +806,7 @@ static int cfs_cpt_num_estimate(void)
static struct cfs_cpt_table *cfs_cpt_table_create(int ncpt)
{
struct cfs_cpt_table *cptab = NULL;
- cpumask_var_t mask;
+ cpumask_var_t node_mask;
int cpt = 0;
int num;
int rc;
@@ -839,15 +839,15 @@ static struct cfs_cpt_table *cfs_cpt_table_create(int ncpt)
goto failed;
}

- if (!zalloc_cpumask_var(&mask, GFP_NOFS)) {
+ if (!zalloc_cpumask_var(&node_mask, GFP_NOFS)) {
CERROR("Failed to allocate scratch cpumask\n");
goto failed;
}

for_each_online_node(i) {
- cpumask_copy(mask, cpumask_of_node(i));
+ cpumask_copy(node_mask, cpumask_of_node(i));

- while (!cpumask_empty(mask)) {
+ while (!cpumask_empty(node_mask)) {
struct cfs_cpu_partition *part;
int n;

@@ -864,7 +864,7 @@ static struct cfs_cpt_table *cfs_cpt_table_create(int ncpt)
n = num - cpumask_weight(part->cpt_cpumask);
LASSERT(n > 0);

- rc = cfs_cpt_choose_ncpus(cptab, cpt, mask, n);
+ rc = cfs_cpt_choose_ncpus(cptab, cpt, node_mask, n);
if (rc < 0)
goto failed_mask;

@@ -882,12 +882,12 @@ static struct cfs_cpt_table *cfs_cpt_table_create(int ncpt)
goto failed_mask;
}

- free_cpumask_var(mask);
+ free_cpumask_var(node_mask);

return cptab;

failed_mask:
- free_cpumask_var(mask);
+ free_cpumask_var(node_mask);
failed:
CERROR("Failed to setup CPU-partition-table with %d CPU-partitions, online HW nodes: %d, HW cpus: %d.\n",
ncpt, num_online_nodes(), num_online_cpus());
--
1.8.3.1
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