* [PATCH 1/2] staging/lustre/ptlrpc: Do not use deprecated cpus_* functions
2015-03-02 6:01 [PATCH 0/2] Lustre: get rid of deprecated cpumask calls green
@ 2015-03-02 6:01 ` green
2015-03-02 6:01 ` [PATCH 2/2] staging/lustre/libcfs: replace deprecated cpus_ calls with cpumask_ green
1 sibling, 0 replies; 3+ messages in thread
From: green @ 2015-03-02 6:01 UTC (permalink / raw)
To: Greg Kroah-Hartman, devel, Andreas Dilger
Cc: Linux Kernel Mailing List, Oleg Drokin
From: Oleg Drokin <green@linuxhacker.ru>
As per Rusty Russel, cpus_* functions are deprecated.
When mixing cpumask_copy with cpus_weight, they operate on different
sized masks if CPUMASK_OFFSTACK is enabled, causing an
immediate assertion failure.
Copying of cpumasks by assignment is also not allowed now.
Additionally, in ptlrpc/service.c avoid the cpumask copies,
since we only use it to check how many siblings are there for
core #0 and nothing else.
Reported-by: Tyson Whitehead <twhitehead@gmail.com>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
---
drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c | 8 ++++----
drivers/staging/lustre/lustre/ptlrpc/service.c | 9 +++------
2 files changed, 7 insertions(+), 10 deletions(-)
diff --git a/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c b/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c
index 4621b71..7f13a28 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c
@@ -511,10 +511,10 @@ static int ptlrpcd_bind(int index, int max)
#if defined(CONFIG_NUMA)
{
int i;
- mask = *cpumask_of_node(cpu_to_node(index));
+ cpumask_copy(&mask, cpumask_of_node(cpu_to_node(index)));
for (i = max; i < num_online_cpus(); i++)
- cpu_clear(i, mask);
- pc->pc_npartners = cpus_weight(mask) - 1;
+ cpumask_clear_cpu(i, &mask);
+ pc->pc_npartners = cpumask_weight(&mask) - 1;
set_bit(LIOD_BIND, &pc->pc_flags);
}
#else
@@ -554,7 +554,7 @@ static int ptlrpcd_bind(int index, int max)
* that are already initialized
*/
for (pidx = 0, i = 0; i < index; i++) {
- if (cpu_isset(i, mask)) {
+ if (cpumask_test_cpu(i, &mask)) {
ppc = &ptlrpcds->pd_threads[i];
pc->pc_partners[pidx++] = ppc;
ppc->pc_partners[ppc->
diff --git a/drivers/staging/lustre/lustre/ptlrpc/service.c b/drivers/staging/lustre/lustre/ptlrpc/service.c
index 635b12b..8e61421 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/service.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/service.c
@@ -543,7 +543,6 @@ ptlrpc_server_nthreads_check(struct ptlrpc_service *svc,
if (tc->tc_thr_factor != 0) {
int factor = tc->tc_thr_factor;
const int fade = 4;
- cpumask_t mask;
/*
* User wants to increase number of threads with for
@@ -557,8 +556,8 @@ ptlrpc_server_nthreads_check(struct ptlrpc_service *svc,
* have too many threads no matter how many cores/HTs
* there are.
*/
- cpumask_copy(&mask, topology_thread_cpumask(0));
- if (cpus_weight(mask) > 1) { /* weight is # of HTs */
+ /* weight is # of HTs */
+ if (cpumask_weight(topology_thread_cpumask(0)) > 1) {
/* depress thread factor for hyper-thread */
factor = factor - (factor >> 1) + (factor >> 3);
}
@@ -2752,7 +2751,6 @@ int ptlrpc_start_thread(struct ptlrpc_service_part *svcpt, int wait)
int ptlrpc_hr_init(void)
{
- cpumask_t mask;
struct ptlrpc_hr_partition *hrp;
struct ptlrpc_hr_thread *hrt;
int rc;
@@ -2770,8 +2768,7 @@ int ptlrpc_hr_init(void)
init_waitqueue_head(&ptlrpc_hr.hr_waitq);
- cpumask_copy(&mask, topology_thread_cpumask(0));
- weight = cpus_weight(mask);
+ weight = cpumask_weight(topology_thread_cpumask(0));
cfs_percpt_for_each(hrp, i, ptlrpc_hr.hr_partitions) {
hrp->hrp_cpt = i;
--
2.1.0
^ permalink raw reply related [flat|nested] 3+ messages in thread* [PATCH 2/2] staging/lustre/libcfs: replace deprecated cpus_ calls with cpumask_
2015-03-02 6:01 [PATCH 0/2] Lustre: get rid of deprecated cpumask calls green
2015-03-02 6:01 ` [PATCH 1/2] staging/lustre/ptlrpc: Do not use deprecated cpus_* functions green
@ 2015-03-02 6:01 ` green
1 sibling, 0 replies; 3+ messages in thread
From: green @ 2015-03-02 6:01 UTC (permalink / raw)
To: Greg Kroah-Hartman, devel, Andreas Dilger
Cc: Linux Kernel Mailing List, Oleg Drokin
From: Oleg Drokin <green@linuxhacker.ru>
Rusty Russel advises that cpus_* functions are deprecated to work
on cpumasks and cpumask_* functions should be called instead,
otherwise problems with CPUMASK_OFFSTACK arise.
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
---
.../staging/lustre/lustre/libcfs/linux/linux-cpu.c | 78 +++++++++++-----------
1 file changed, 39 insertions(+), 39 deletions(-)
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-cpu.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-cpu.c
index 05f7595..1eeacef 100644
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-cpu.c
+++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-cpu.c
@@ -240,8 +240,8 @@ cfs_cpt_weight(struct cfs_cpt_table *cptab, int cpt)
LASSERT(cpt == CFS_CPT_ANY || (cpt >= 0 && cpt < cptab->ctb_nparts));
return cpt == CFS_CPT_ANY ?
- cpus_weight(*cptab->ctb_cpumask) :
- cpus_weight(*cptab->ctb_parts[cpt].cpt_cpumask);
+ cpumask_weight(cptab->ctb_cpumask) :
+ cpumask_weight(cptab->ctb_parts[cpt].cpt_cpumask);
}
EXPORT_SYMBOL(cfs_cpt_weight);
@@ -251,8 +251,8 @@ cfs_cpt_online(struct cfs_cpt_table *cptab, int cpt)
LASSERT(cpt == CFS_CPT_ANY || (cpt >= 0 && cpt < cptab->ctb_nparts));
return cpt == CFS_CPT_ANY ?
- any_online_cpu(*cptab->ctb_cpumask) != NR_CPUS :
- any_online_cpu(*cptab->ctb_parts[cpt].cpt_cpumask) != NR_CPUS;
+ any_online_cpu(*cptab->ctb_cpumask) < nr_cpu_ids :
+ any_online_cpu(*cptab->ctb_parts[cpt].cpt_cpumask) < nr_cpu_ids;
}
EXPORT_SYMBOL(cfs_cpt_online);
@@ -283,7 +283,7 @@ cfs_cpt_set_cpu(struct cfs_cpt_table *cptab, int cpt, int cpu)
LASSERT(cpt >= 0 && cpt < cptab->ctb_nparts);
- if (cpu < 0 || cpu >= NR_CPUS || !cpu_online(cpu)) {
+ if (cpu < 0 || cpu >= nr_cpu_ids || !cpu_online(cpu)) {
CDEBUG(D_INFO, "CPU %d is invalid or it's offline\n", cpu);
return 0;
}
@@ -296,11 +296,11 @@ cfs_cpt_set_cpu(struct cfs_cpt_table *cptab, int cpt, int cpu)
cptab->ctb_cpu2cpt[cpu] = cpt;
- LASSERT(!cpu_isset(cpu, *cptab->ctb_cpumask));
- LASSERT(!cpu_isset(cpu, *cptab->ctb_parts[cpt].cpt_cpumask));
+ LASSERT(!cpumask_test_cpu(cpu, cptab->ctb_cpumask));
+ LASSERT(!cpumask_test_cpu(cpu, cptab->ctb_parts[cpt].cpt_cpumask));
- cpu_set(cpu, *cptab->ctb_cpumask);
- cpu_set(cpu, *cptab->ctb_parts[cpt].cpt_cpumask);
+ cpumask_set_cpu(cpu, cptab->ctb_cpumask);
+ cpumask_set_cpu(cpu, cptab->ctb_parts[cpt].cpt_cpumask);
node = cpu_to_node(cpu);
@@ -324,7 +324,7 @@ cfs_cpt_unset_cpu(struct cfs_cpt_table *cptab, int cpt, int cpu)
LASSERT(cpt == CFS_CPT_ANY || (cpt >= 0 && cpt < cptab->ctb_nparts));
- if (cpu < 0 || cpu >= NR_CPUS) {
+ if (cpu < 0 || cpu >= nr_cpu_ids) {
CDEBUG(D_INFO, "Invalid CPU id %d\n", cpu);
return;
}
@@ -344,11 +344,11 @@ cfs_cpt_unset_cpu(struct cfs_cpt_table *cptab, int cpt, int cpu)
return;
}
- LASSERT(cpu_isset(cpu, *cptab->ctb_parts[cpt].cpt_cpumask));
- LASSERT(cpu_isset(cpu, *cptab->ctb_cpumask));
+ LASSERT(cpumask_test_cpu(cpu, cptab->ctb_parts[cpt].cpt_cpumask));
+ LASSERT(cpumask_test_cpu(cpu, cptab->ctb_cpumask));
- cpu_clear(cpu, *cptab->ctb_parts[cpt].cpt_cpumask);
- cpu_clear(cpu, *cptab->ctb_cpumask);
+ cpumask_clear_cpu(cpu, cptab->ctb_parts[cpt].cpt_cpumask);
+ cpumask_clear_cpu(cpu, cptab->ctb_cpumask);
cptab->ctb_cpu2cpt[cpu] = -1;
node = cpu_to_node(cpu);
@@ -383,7 +383,7 @@ cfs_cpt_set_cpumask(struct cfs_cpt_table *cptab, int cpt, cpumask_t *mask)
{
int i;
- if (cpus_weight(*mask) == 0 || any_online_cpu(*mask) == NR_CPUS) {
+ if (cpumask_weight(mask) == 0 || any_online_cpu(*mask) >= nr_cpu_ids) {
CDEBUG(D_INFO, "No online CPU is found in the CPU mask for CPU partition %d\n",
cpt);
return 0;
@@ -554,7 +554,7 @@ EXPORT_SYMBOL(cfs_cpt_current);
int
cfs_cpt_of_cpu(struct cfs_cpt_table *cptab, int cpu)
{
- LASSERT(cpu >= 0 && cpu < NR_CPUS);
+ LASSERT(cpu >= 0 && cpu < nr_cpu_ids);
return cptab->ctb_cpu2cpt[cpu];
}
@@ -578,14 +578,14 @@ cfs_cpt_bind(struct cfs_cpt_table *cptab, int cpt)
nodemask = cptab->ctb_parts[cpt].cpt_nodemask;
}
- if (any_online_cpu(*cpumask) == NR_CPUS) {
+ if (any_online_cpu(*cpumask) >= nr_cpu_ids) {
CERROR("No online CPU found in CPU partition %d, did someone do CPU hotplug on system? You might need to reload Lustre modules to keep system working well.\n",
cpt);
return -EINVAL;
}
for_each_online_cpu(i) {
- if (cpu_isset(i, *cpumask))
+ if (cpumask_test_cpu(i, cpumask))
continue;
rc = set_cpus_allowed_ptr(current, cpumask);
@@ -616,14 +616,14 @@ cfs_cpt_choose_ncpus(struct cfs_cpt_table *cptab, int cpt,
LASSERT(number > 0);
- if (number >= cpus_weight(*node)) {
- while (!cpus_empty(*node)) {
- cpu = first_cpu(*node);
+ if (number >= cpumask_weight(node)) {
+ while (!cpumask_empty(node)) {
+ cpu = cpumask_first(node);
rc = cfs_cpt_set_cpu(cptab, cpt, cpu);
if (!rc)
return -EINVAL;
- cpu_clear(cpu, *node);
+ cpumask_clear_cpu(cpu, node);
}
return 0;
}
@@ -636,27 +636,27 @@ cfs_cpt_choose_ncpus(struct cfs_cpt_table *cptab, int cpt,
goto out;
}
- while (!cpus_empty(*node)) {
- cpu = first_cpu(*node);
+ while (!cpumask_empty(node)) {
+ cpu = cpumask_first(node);
/* get cpumask for cores in the same socket */
cfs_cpu_core_siblings(cpu, socket);
- cpus_and(*socket, *socket, *node);
+ cpumask_and(socket, socket, node);
- LASSERT(!cpus_empty(*socket));
+ LASSERT(!cpumask_empty(socket));
- while (!cpus_empty(*socket)) {
+ while (!cpumask_empty(socket)) {
int i;
/* get cpumask for hts in the same core */
cfs_cpu_ht_siblings(cpu, core);
- cpus_and(*core, *core, *node);
+ cpumask_and(core, core, node);
- LASSERT(!cpus_empty(*core));
+ LASSERT(!cpumask_empty(core));
for_each_cpu_mask(i, *core) {
- cpu_clear(i, *socket);
- cpu_clear(i, *node);
+ cpumask_clear_cpu(i, socket);
+ cpumask_clear_cpu(i, node);
rc = cfs_cpt_set_cpu(cptab, cpt, i);
if (!rc) {
@@ -667,7 +667,7 @@ cfs_cpt_choose_ncpus(struct cfs_cpt_table *cptab, int cpt,
if (--number == 0)
goto out;
}
- cpu = first_cpu(*socket);
+ cpu = cpumask_first(socket);
}
}
@@ -767,7 +767,7 @@ cfs_cpt_table_create(int ncpt)
for_each_online_node(i) {
cfs_node_to_cpumask(i, mask);
- while (!cpus_empty(*mask)) {
+ while (!cpumask_empty(mask)) {
struct cfs_cpu_partition *part;
int n;
@@ -776,24 +776,24 @@ cfs_cpt_table_create(int ncpt)
part = &cptab->ctb_parts[cpt];
- n = num - cpus_weight(*part->cpt_cpumask);
+ n = num - cpumask_weight(part->cpt_cpumask);
LASSERT(n > 0);
rc = cfs_cpt_choose_ncpus(cptab, cpt, mask, n);
if (rc < 0)
goto failed;
- LASSERT(num >= cpus_weight(*part->cpt_cpumask));
- if (num == cpus_weight(*part->cpt_cpumask))
+ LASSERT(num >= cpumask_weight(part->cpt_cpumask));
+ if (num == cpumask_weight(part->cpt_cpumask))
cpt++;
}
}
if (cpt != ncpt ||
- num != cpus_weight(*cptab->ctb_parts[ncpt - 1].cpt_cpumask)) {
+ num != cpumask_weight(cptab->ctb_parts[ncpt - 1].cpt_cpumask)) {
CERROR("Expect %d(%d) CPU partitions but got %d(%d), CPU hotplug/unplug while setting?\n",
cptab->ctb_nparts, num, cpt,
- cpus_weight(*cptab->ctb_parts[ncpt - 1].cpt_cpumask));
+ cpumask_weight(cptab->ctb_parts[ncpt - 1].cpt_cpumask));
goto failed;
}
@@ -845,7 +845,7 @@ cfs_cpt_table_create_pattern(char *pattern)
return NULL;
}
- high = node ? MAX_NUMNODES - 1 : NR_CPUS - 1;
+ high = node ? MAX_NUMNODES - 1 : nr_cpu_ids - 1;
cptab = cfs_cpt_table_alloc(ncpt);
if (cptab == NULL) {
--
2.1.0
^ permalink raw reply related [flat|nested] 3+ messages in thread