aboutsummaryrefslogtreecommitdiff
path: root/kernel/cpuset.c
diff options
context:
space:
mode:
Diffstat (limited to 'kernel/cpuset.c')
-rw-r--r--kernel/cpuset.c26
1 files changed, 19 insertions, 7 deletions
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 984c0bf3807..805fb909731 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -1440,10 +1440,10 @@ void __init cpuset_init_smp(void)
/**
* cpuset_fork - attach newly forked task to its parents cpuset.
- * @p: pointer to task_struct of forking parent process.
+ * @tsk: pointer to task_struct of forking parent process.
*
* Description: By default, on fork, a task inherits its
- * parents cpuset. The pointer to the shared cpuset is
+ * parent's cpuset. The pointer to the shared cpuset is
* automatically copied in fork.c by dup_task_struct().
* This cpuset_fork() routine need only increment the usage
* counter in that cpuset.
@@ -1471,7 +1471,6 @@ void cpuset_fork(struct task_struct *tsk)
* by the cpuset_sem semaphore. If you don't hold cpuset_sem,
* then a zero cpuset use count is a license to any other task to
* nuke the cpuset immediately.
- *
**/
void cpuset_exit(struct task_struct *tsk)
@@ -1521,7 +1520,9 @@ void cpuset_init_current_mems_allowed(void)
current->mems_allowed = NODE_MASK_ALL;
}
-/*
+/**
+ * cpuset_update_current_mems_allowed - update mems parameters to new values
+ *
* If the current tasks cpusets mems_allowed changed behind our backs,
* update current->mems_allowed and mems_generation to the new value.
* Do not call this routine if in_interrupt().
@@ -1540,13 +1541,20 @@ void cpuset_update_current_mems_allowed(void)
}
}
+/**
+ * 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
+ *
* Are any of the nodes on zonelist zl allowed in current->mems_allowed?
*/
int cpuset_zonelist_valid_mems_allowed(struct zonelist *zl)
@@ -1562,8 +1570,12 @@ int cpuset_zonelist_valid_mems_allowed(struct zonelist *zl)
return 0;
}
-/*
- * Is 'current' valid, and is zone z allowed in current->mems_allowed?
+/**
+ * cpuset_zone_allowed - is zone z allowed in current->mems_allowed
+ * @z: zone in question
+ *
+ * Is zone z allowed in current->mems_allowed, or is
+ * the CPU in interrupt context? (zone is always allowed in this case)
*/
int cpuset_zone_allowed(struct zone *z)
{