linux-stable/fs/ksmbd/ksmbd_work.c
Christophe JAILLET e8d585b2f6 ksmbd: Remove redundant 'flush_workqueue()' calls
'destroy_workqueue()' already drains the queue before destroying it, so
there is no need to flush it explicitly.

Remove the redundant 'flush_workqueue()' calls.

This was generated with coccinelle:

@@
expression E;
@@
- 	flush_workqueue(E);
	destroy_workqueue(E);

Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-11-06 23:52:06 -05:00

79 lines
1.7 KiB
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2019 Samsung Electronics Co., Ltd.
*/
#include <linux/list.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
#include "server.h"
#include "connection.h"
#include "ksmbd_work.h"
#include "mgmt/ksmbd_ida.h"
static struct kmem_cache *work_cache;
static struct workqueue_struct *ksmbd_wq;
struct ksmbd_work *ksmbd_alloc_work_struct(void)
{
struct ksmbd_work *work = kmem_cache_zalloc(work_cache, GFP_KERNEL);
if (work) {
work->compound_fid = KSMBD_NO_FID;
work->compound_pfid = KSMBD_NO_FID;
INIT_LIST_HEAD(&work->request_entry);
INIT_LIST_HEAD(&work->async_request_entry);
INIT_LIST_HEAD(&work->fp_entry);
INIT_LIST_HEAD(&work->interim_entry);
}
return work;
}
void ksmbd_free_work_struct(struct ksmbd_work *work)
{
WARN_ON(work->saved_cred != NULL);
kvfree(work->response_buf);
kvfree(work->aux_payload_buf);
kfree(work->tr_buf);
kvfree(work->request_buf);
if (work->async_id)
ksmbd_release_id(&work->conn->async_ida, work->async_id);
kmem_cache_free(work_cache, work);
}
void ksmbd_work_pool_destroy(void)
{
kmem_cache_destroy(work_cache);
}
int ksmbd_work_pool_init(void)
{
work_cache = kmem_cache_create("ksmbd_work_cache",
sizeof(struct ksmbd_work), 0,
SLAB_HWCACHE_ALIGN, NULL);
if (!work_cache)
return -ENOMEM;
return 0;
}
int ksmbd_workqueue_init(void)
{
ksmbd_wq = alloc_workqueue("ksmbd-io", 0, 0);
if (!ksmbd_wq)
return -ENOMEM;
return 0;
}
void ksmbd_workqueue_destroy(void)
{
destroy_workqueue(ksmbd_wq);
ksmbd_wq = NULL;
}
bool ksmbd_queue_work(struct ksmbd_work *work)
{
return queue_work(ksmbd_wq, &work->work);
}