padata: Remove superfluous might_sleep

might_sleep() was placed before mutex_lock() in some places.
We remove them because mutex_lock() does might_sleep() too.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 0 insertions, 10 deletions

diff --git a/kernel/padata.c b/kernel/padata.c
index 1209a17b9718..5fa6ba6f11bd 100644
--- a/kernel/padata.c
+++ b/kernel/padata.c
@@ -443,8 +443,6 @@ int padata_set_cpumask(struct padata_instance *pinst,
         struct parallel_data *pd;
         int err = 0;
 
-        might_sleep();
-
         mutex_lock(&pinst->lock);
 
         pd = padata_alloc_pd(pinst, cpumask);
@@ -489,8 +487,6 @@ int padata_add_cpu(struct padata_instance *pinst, int cpu)
 {
         int err;
 
-        might_sleep();
-
         mutex_lock(&pinst->lock);
 
         cpumask_set_cpu(cpu, pinst->cpumask);
@@ -527,8 +523,6 @@ int padata_remove_cpu(struct padata_instance *pinst, int cpu)
 {
         int err;
 
-        might_sleep();
-
         mutex_lock(&pinst->lock);
 
         cpumask_clear_cpu(cpu, pinst->cpumask);
@@ -547,8 +541,6 @@ EXPORT_SYMBOL(padata_remove_cpu);
  */
 void padata_start(struct padata_instance *pinst)
 {
-        might_sleep();
-
         mutex_lock(&pinst->lock);
         pinst->flags |= PADATA_INIT;
         mutex_unlock(&pinst->lock);
@@ -562,8 +554,6 @@ EXPORT_SYMBOL(padata_start);
  */
 void padata_stop(struct padata_instance *pinst)
 {
-        might_sleep();
-
         mutex_lock(&pinst->lock);
         pinst->flags &= ~PADATA_INIT;
         mutex_unlock(&pinst->lock);