p71924506
/
linux_old1
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

io-wq: use kfree_rcu() to simplify the code 

The callback function of call_rcu() just calls kfree(), so we can use
kfree_rcu() instead of call_rcu() + callback function.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
YueHaibing 2019-11-02 15:55:01 +08:00 committed by Jens Axboe
parent 0069fc6b1c
commit 364b05fd06
1 changed files with 1 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
fs/io-wq.c
View File

@ -102,13 +102,6 @@ struct io_wq {
struct completion done; struct completion done;
}; };
static void io_wq_free_worker(struct rcu_head *head)
{
struct io_worker *worker = container_of(head, struct io_worker, rcu);
kfree(worker);
}
static bool io_worker_get(struct io_worker *worker) static bool io_worker_get(struct io_worker *worker)
{ {
return refcount_inc_not_zero(&worker->ref); return refcount_inc_not_zero(&worker->ref);
@ -194,7 +187,7 @@ static void io_worker_exit(struct io_worker *worker)
if (all_done && refcount_dec_and_test(&wqe->wq->refs)) if (all_done && refcount_dec_and_test(&wqe->wq->refs))
complete(&wqe->wq->done); complete(&wqe->wq->done);
call_rcu(&worker->rcu, io_wq_free_worker); kfree_rcu(worker, rcu);
} }
static void io_worker_start(struct io_wqe *wqe, struct io_worker *worker) static void io_worker_start(struct io_wqe *wqe, struct io_worker *worker)