21 	struct ksmbd_work *work = kmem_cache_zalloc(work_cache, GFP_KERNEL);  in ksmbd_alloc_work_struct()  local
23 	if (work) {  in ksmbd_alloc_work_struct()
24 		work->compound_fid = KSMBD_NO_FID;  in ksmbd_alloc_work_struct()
25 		work->compound_pfid = KSMBD_NO_FID;  in ksmbd_alloc_work_struct()
26 		INIT_LIST_HEAD(&work->request_entry);  in ksmbd_alloc_work_struct()
27 		INIT_LIST_HEAD(&work->async_request_entry);  in ksmbd_alloc_work_struct()
28 		INIT_LIST_HEAD(&work->fp_entry);  in ksmbd_alloc_work_struct()
29 		INIT_LIST_HEAD(&work->interim_entry);  in ksmbd_alloc_work_struct()
30 		INIT_LIST_HEAD(&work->aux_read_list);  in ksmbd_alloc_work_struct()
31 		work->iov_alloc_cnt = 4;  in ksmbd_alloc_work_struct()
32 		work->iov = kcalloc(work->iov_alloc_cnt, sizeof(struct kvec),  in ksmbd_alloc_work_struct()
34 		if (!work->iov) {  in ksmbd_alloc_work_struct()
35 			kmem_cache_free(work_cache, work);  in ksmbd_alloc_work_struct()
36 			work = NULL;  in ksmbd_alloc_work_struct()
39 	return work;  in ksmbd_alloc_work_struct()
42 void ksmbd_free_work_struct(struct ksmbd_work *work)  in ksmbd_free_work_struct()  argument
46 	WARN_ON(work->saved_cred != NULL);  in ksmbd_free_work_struct()
48 	kvfree(work->response_buf);  in ksmbd_free_work_struct()
50 	list_for_each_entry_safe(ar, tmp, &work->aux_read_list, entry) {  in ksmbd_free_work_struct()
56 	kfree(work->tr_buf);  in ksmbd_free_work_struct()
57 	kvfree(work->request_buf);  in ksmbd_free_work_struct()
58 	kfree(work->iov);  in ksmbd_free_work_struct()
59 	if (!list_empty(&work->interim_entry))  in ksmbd_free_work_struct()
60 		list_del(&work->interim_entry);  in ksmbd_free_work_struct()
62 	if (work->async_id)  in ksmbd_free_work_struct()
63 		ksmbd_release_id(&work->conn->async_ida, work->async_id);  in ksmbd_free_work_struct()
64 	kmem_cache_free(work_cache, work);  in ksmbd_free_work_struct()
96 bool ksmbd_queue_work(struct ksmbd_work *work)  in ksmbd_queue_work()  argument
98 	return queue_work(ksmbd_wq, &work->work);  in ksmbd_queue_work()
101 static inline void __ksmbd_iov_pin(struct ksmbd_work *work, void *ib,  in __ksmbd_iov_pin()  argument
104 	work->iov[++work->iov_idx].iov_base = ib;  in __ksmbd_iov_pin()
105 	work->iov[work->iov_idx].iov_len = ib_len;  in __ksmbd_iov_pin()
106 	work->iov_cnt++;  in __ksmbd_iov_pin()
109 static int __ksmbd_iov_pin_rsp(struct ksmbd_work *work, void *ib, int len,  in __ksmbd_iov_pin_rsp()  argument
122 	if (work->iov_alloc_cnt < work->iov_cnt + need_iov_cnt) {  in __ksmbd_iov_pin_rsp()
125 		work->iov_alloc_cnt += 4;  in __ksmbd_iov_pin_rsp()
126 		new = krealloc(work->iov,  in __ksmbd_iov_pin_rsp()
127 			       sizeof(struct kvec) * work->iov_alloc_cnt,  in __ksmbd_iov_pin_rsp()
131 			work->iov_alloc_cnt -= 4;  in __ksmbd_iov_pin_rsp()
134 		work->iov = new;  in __ksmbd_iov_pin_rsp()
138 	if (!work->iov_idx) {  in __ksmbd_iov_pin_rsp()
139 		work->iov[work->iov_idx].iov_base = work->response_buf;  in __ksmbd_iov_pin_rsp()
140 		*(__be32 *)work->iov[0].iov_base = 0;  in __ksmbd_iov_pin_rsp()
141 		work->iov[work->iov_idx].iov_len = 4;  in __ksmbd_iov_pin_rsp()
142 		work->iov_cnt++;  in __ksmbd_iov_pin_rsp()
145 	__ksmbd_iov_pin(work, ib, len);  in __ksmbd_iov_pin_rsp()
146 	inc_rfc1001_len(work->iov[0].iov_base, len);  in __ksmbd_iov_pin_rsp()
149 		__ksmbd_iov_pin(work, aux_buf, aux_size);  in __ksmbd_iov_pin_rsp()
150 		inc_rfc1001_len(work->iov[0].iov_base, aux_size);  in __ksmbd_iov_pin_rsp()
153 		list_add(&ar->entry, &work->aux_read_list);  in __ksmbd_iov_pin_rsp()
159 int ksmbd_iov_pin_rsp(struct ksmbd_work *work, void *ib, int len)  in ksmbd_iov_pin_rsp()  argument
161 	return __ksmbd_iov_pin_rsp(work, ib, len, NULL, 0);  in ksmbd_iov_pin_rsp()
164 int ksmbd_iov_pin_rsp_read(struct ksmbd_work *work, void *ib, int len,  in ksmbd_iov_pin_rsp_read()  argument
167 	return __ksmbd_iov_pin_rsp(work, ib, len, aux_buf, aux_size);  in ksmbd_iov_pin_rsp_read()
170 int allocate_interim_rsp_buf(struct ksmbd_work *work)  in allocate_interim_rsp_buf()  argument
172 	work->response_buf = kzalloc(MAX_CIFS_SMALL_BUFFER_SIZE, GFP_KERNEL);  in allocate_interim_rsp_buf()
173 	if (!work->response_buf)  in allocate_interim_rsp_buf()
175 	work->response_sz = MAX_CIFS_SMALL_BUFFER_SIZE;  in allocate_interim_rsp_buf()