diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/cpuset.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/kernel/cpuset.c b/kernel/cpuset.c index 8fe6f6b65006..e372d9495e42 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -983,8 +983,10 @@ static void cpuset_change_task_nodemask(struct task_struct *tsk, need_loop = task_has_mempolicy(tsk) || !nodes_intersects(*newmems, tsk->mems_allowed); - if (need_loop) + if (need_loop) { + local_irq_disable(); write_seqcount_begin(&tsk->mems_allowed_seq); + } nodes_or(tsk->mems_allowed, tsk->mems_allowed, *newmems); mpol_rebind_task(tsk, newmems, MPOL_REBIND_STEP1); @@ -992,8 +994,10 @@ static void cpuset_change_task_nodemask(struct task_struct *tsk, mpol_rebind_task(tsk, newmems, MPOL_REBIND_STEP2); tsk->mems_allowed = *newmems; - if (need_loop) + if (need_loop) { write_seqcount_end(&tsk->mems_allowed_seq); + local_irq_enable(); + } task_unlock(tsk); } |