diff options
| -rw-r--r-- | include/linux/cpuset.h | 5 | ||||
| -rw-r--r-- | kernel/cpuset.c | 10 | ||||
| -rw-r--r-- | mm/mempolicy.c | 5 |
3 files changed, 5 insertions, 15 deletions
diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h index 6e2deef96b3..8b21786490e 100644 --- a/include/linux/cpuset.h +++ b/include/linux/cpuset.h @@ -21,7 +21,8 @@ extern void cpuset_exit(struct task_struct *p); extern cpumask_t cpuset_cpus_allowed(const struct task_struct *p); void cpuset_init_current_mems_allowed(void); void cpuset_update_current_mems_allowed(void); -void cpuset_restrict_to_mems_allowed(unsigned long *nodes); +#define cpuset_nodes_subset_current_mems_allowed(nodes) \ + nodes_subset((nodes), current->mems_allowed) int cpuset_zonelist_valid_mems_allowed(struct zonelist *zl); extern int cpuset_zone_allowed(struct zone *z, gfp_t gfp_mask); extern int cpuset_excl_nodes_overlap(const struct task_struct *p); @@ -42,7 +43,7 @@ static inline cpumask_t cpuset_cpus_allowed(struct task_struct *p) static inline void cpuset_init_current_mems_allowed(void) {} static inline void cpuset_update_current_mems_allowed(void) {} -static inline void cpuset_restrict_to_mems_allowed(unsigned long *nodes) {} +#define cpuset_nodes_subset_current_mems_allowed(nodes) (1) static inline int cpuset_zonelist_valid_mems_allowed(struct zonelist *zl) { diff --git a/kernel/cpuset.c b/kernel/cpuset.c index f63383e01ec..6503c6da4c4 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -1750,16 +1750,6 @@ done: } /** - * cpuset_restrict_to_mems_allowed - limit nodes to current mems_allowed - * @nodes: pointer to a node bitmap that is and-ed with mems_allowed - */ -void cpuset_restrict_to_mems_allowed(unsigned long *nodes) -{ - bitmap_and(nodes, nodes, nodes_addr(current->mems_allowed), - MAX_NUMNODES); -} - -/** * cpuset_zonelist_valid_mems_allowed - check zonelist vs. curremt mems_allowed * @zl: the zonelist to be checked * diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 7051fe450e9..9dea2b8a7d4 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -387,10 +387,9 @@ static int contextualize_policy(int mode, nodemask_t *nodes) if (!nodes) return 0; - /* Update current mems_allowed */ cpuset_update_current_mems_allowed(); - /* Ignore nodes not set in current->mems_allowed */ - cpuset_restrict_to_mems_allowed(nodes->bits); + if (!cpuset_nodes_subset_current_mems_allowed(*nodes)) + return -EINVAL; return mpol_check_policy(mode, nodes); } |