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xdp: Fix graze->grace type-o in cpumap comments

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Simple spelling fix.

Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/bpf/20191219061006.21980-4-bjorn.topel@gmail.com
This commit is contained in:
Björn Töpel 2019-12-19 07:10:01 +01:00 committed by Alexei Starovoitov
parent 4bc188c7f2
commit fb5aacdf36
1 changed files with 3 additions and 3 deletions
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6
kernel/bpf/cpumap.c
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@ -401,7 +401,7 @@ static void __cpu_map_entry_free(struct rcu_head *rcu)
struct bpf_cpu_map_entry *rcpu;
/* This cpu_map_entry have been disconnected from map and one
* RCU graze-period have elapsed. Thus, XDP cannot queue any
* RCU grace-period have elapsed. Thus, XDP cannot queue any
* new packets and cannot change/set flush_needed that can
* find this entry.
*/
@ -428,7 +428,7 @@ static void __cpu_map_entry_free(struct rcu_head *rcu)
* percpu bulkq to queue. Due to caller map_delete_elem() disable
* preemption, cannot call kthread_stop() to make sure queue is empty.
* Instead a work_queue is started for stopping kthread,
* cpu_map_kthread_stop, which waits for an RCU graze period before
* cpu_map_kthread_stop, which waits for an RCU grace period before
* stopping kthread, emptying the queue.
*/
static void __cpu_map_entry_replace(struct bpf_cpu_map *cmap,
@ -523,7 +523,7 @@ static void cpu_map_free(struct bpf_map *map)
if (!rcpu)
continue;
/* bq flush and cleanup happens after RCU graze-period */
/* bq flush and cleanup happens after RCU grace-period */
__cpu_map_entry_replace(cmap, i, NULL); /* call_rcu */
}
free_percpu(cmap->flush_list);