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padata: remove effective cpumasks from the instance 

A padata instance has effective cpumasks that store the user-supplied
masks ANDed with the online mask, but this middleman is unnecessary.
parallel_data keeps the same information around.  Removing this saves
text and code churn in future changes.

Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: linux-crypto@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Daniel Jordan 2020-07-14 16:13:54 -04:00 committed by Herbert Xu
parent cec00e6e12
commit d69e037bcc
2 changed files with 3 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/linux/padata.h
View File

@ -167,7 +167,6 @@ struct padata_mt_job {
* @serial_wq: The workqueue used for serial work.
* @pslist: List of padata_shell objects attached to this instance.
* @cpumask: User supplied cpumasks for parallel and serial works.
* @rcpumask: Actual cpumasks based on user cpumask and cpu_online_mask.
* @kobj: padata instance kernel object.
* @lock: padata instance lock.
* @flags: padata flags.
@ -179,7 +178,6 @@ struct padata_instance {
struct workqueue_struct *serial_wq;
struct list_head pslist;
struct padata_cpumask cpumask;
struct padata_cpumask rcpumask;
struct kobject kobj;
struct mutex lock;
u8 flags;

30
kernel/padata.c
View File

@ -571,13 +571,8 @@ static void padata_init_pqueues(struct parallel_data *pd)
static struct parallel_data *padata_alloc_pd(struct padata_shell *ps)
{
struct padata_instance *pinst = ps->pinst;
const struct cpumask *cbcpumask;
const struct cpumask *pcpumask;
struct parallel_data *pd;
cbcpumask = pinst->rcpumask.cbcpu;
pcpumask = pinst->rcpumask.pcpu;
pd = kzalloc(sizeof(struct parallel_data), GFP_KERNEL);
if (!pd)
goto err;
@ -597,8 +592,8 @@ static struct parallel_data *padata_alloc_pd(struct padata_shell *ps)
if (!alloc_cpumask_var(&pd->cpumask.cbcpu, GFP_KERNEL))
goto err_free_pcpu;
cpumask_copy(pd->cpumask.pcpu, pcpumask);
cpumask_copy(pd->cpumask.cbcpu, cbcpumask);
cpumask_and(pd->cpumask.pcpu, pinst->cpumask.pcpu, cpu_online_mask);
cpumask_and(pd->cpumask.cbcpu, pinst->cpumask.cbcpu, cpu_online_mask);
padata_init_pqueues(pd);
padata_init_squeues(pd);
@ -668,12 +663,6 @@ static int padata_replace(struct padata_instance *pinst)
pinst->flags |= PADATA_RESET;
cpumask_and(pinst->rcpumask.pcpu, pinst->cpumask.pcpu,
cpu_online_mask);
cpumask_and(pinst->rcpumask.cbcpu, pinst->cpumask.cbcpu,
cpu_online_mask);
list_for_each_entry(ps, &pinst->pslist, list) {
err = padata_replace_one(ps);
if (err)
@ -856,8 +845,6 @@ static void __padata_free(struct padata_instance *pinst)
WARN_ON(!list_empty(&pinst->pslist));
free_cpumask_var(pinst->rcpumask.cbcpu);
free_cpumask_var(pinst->rcpumask.pcpu);
free_cpumask_var(pinst->cpumask.pcpu);
free_cpumask_var(pinst->cpumask.cbcpu);
destroy_workqueue(pinst->serial_wq);
@ -1033,20 +1020,13 @@ static struct padata_instance *padata_alloc(const char *name,
!padata_validate_cpumask(pinst, cbcpumask))
goto err_free_masks;
if (!alloc_cpumask_var(&pinst->rcpumask.pcpu, GFP_KERNEL))
goto err_free_masks;
if (!alloc_cpumask_var(&pinst->rcpumask.cbcpu, GFP_KERNEL))
goto err_free_rcpumask_pcpu;
INIT_LIST_HEAD(&pinst->pslist);
cpumask_copy(pinst->cpumask.pcpu, pcpumask);
cpumask_copy(pinst->cpumask.cbcpu, cbcpumask);
cpumask_and(pinst->rcpumask.pcpu, pcpumask, cpu_online_mask);
cpumask_and(pinst->rcpumask.cbcpu, cbcpumask, cpu_online_mask);
if (padata_setup_cpumasks(pinst))
goto err_free_rcpumask_cbcpu;
goto err_free_masks;
__padata_start(pinst);
@ -1064,10 +1044,6 @@ static struct padata_instance *padata_alloc(const char *name,
return pinst;
err_free_rcpumask_cbcpu:
free_cpumask_var(pinst->rcpumask.cbcpu);
err_free_rcpumask_pcpu:
free_cpumask_var(pinst->rcpumask.pcpu);
err_free_masks:
free_cpumask_var(pinst->cpumask.pcpu);
free_cpumask_var(pinst->cpumask.cbcpu);