diff options
Diffstat (limited to 'net/sunrpc/xdr.c')
-rw-r--r-- | net/sunrpc/xdr.c | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c index fde16f40a581..9cc12aeed22c 100644 --- a/net/sunrpc/xdr.c +++ b/net/sunrpc/xdr.c | |||
@@ -176,81 +176,6 @@ xdr_inline_pages(struct xdr_buf *xdr, unsigned int offset, | |||
176 | xdr->buflen += len; | 176 | xdr->buflen += len; |
177 | } | 177 | } |
178 | 178 | ||
179 | ssize_t | ||
180 | xdr_partial_copy_from_skb(struct xdr_buf *xdr, unsigned int base, | ||
181 | skb_reader_t *desc, | ||
182 | skb_read_actor_t copy_actor) | ||
183 | { | ||
184 | struct page **ppage = xdr->pages; | ||
185 | unsigned int len, pglen = xdr->page_len; | ||
186 | ssize_t copied = 0; | ||
187 | int ret; | ||
188 | |||
189 | len = xdr->head[0].iov_len; | ||
190 | if (base < len) { | ||
191 | len -= base; | ||
192 | ret = copy_actor(desc, (char *)xdr->head[0].iov_base + base, len); | ||
193 | copied += ret; | ||
194 | if (ret != len || !desc->count) | ||
195 | goto out; | ||
196 | base = 0; | ||
197 | } else | ||
198 | base -= len; | ||
199 | |||
200 | if (pglen == 0) | ||
201 | goto copy_tail; | ||
202 | if (base >= pglen) { | ||
203 | base -= pglen; | ||
204 | goto copy_tail; | ||
205 | } | ||
206 | if (base || xdr->page_base) { | ||
207 | pglen -= base; | ||
208 | base += xdr->page_base; | ||
209 | ppage += base >> PAGE_CACHE_SHIFT; | ||
210 | base &= ~PAGE_CACHE_MASK; | ||
211 | } | ||
212 | do { | ||
213 | char *kaddr; | ||
214 | |||
215 | /* ACL likes to be lazy in allocating pages - ACLs | ||
216 | * are small by default but can get huge. */ | ||
217 | if (unlikely(*ppage == NULL)) { | ||
218 | *ppage = alloc_page(GFP_ATOMIC); | ||
219 | if (unlikely(*ppage == NULL)) { | ||
220 | if (copied == 0) | ||
221 | copied = -ENOMEM; | ||
222 | goto out; | ||
223 | } | ||
224 | } | ||
225 | |||
226 | len = PAGE_CACHE_SIZE; | ||
227 | kaddr = kmap_atomic(*ppage, KM_SKB_SUNRPC_DATA); | ||
228 | if (base) { | ||
229 | len -= base; | ||
230 | if (pglen < len) | ||
231 | len = pglen; | ||
232 | ret = copy_actor(desc, kaddr + base, len); | ||
233 | base = 0; | ||
234 | } else { | ||
235 | if (pglen < len) | ||
236 | len = pglen; | ||
237 | ret = copy_actor(desc, kaddr, len); | ||
238 | } | ||
239 | flush_dcache_page(*ppage); | ||
240 | kunmap_atomic(kaddr, KM_SKB_SUNRPC_DATA); | ||
241 | copied += ret; | ||
242 | if (ret != len || !desc->count) | ||
243 | goto out; | ||
244 | ppage++; | ||
245 | } while ((pglen -= len) != 0); | ||
246 | copy_tail: | ||
247 | len = xdr->tail[0].iov_len; | ||
248 | if (base < len) | ||
249 | copied += copy_actor(desc, (char *)xdr->tail[0].iov_base + base, len - base); | ||
250 | out: | ||
251 | return copied; | ||
252 | } | ||
253 | |||
254 | 179 | ||
255 | int | 180 | int |
256 | xdr_sendpages(struct socket *sock, struct sockaddr *addr, int addrlen, | 181 | xdr_sendpages(struct socket *sock, struct sockaddr *addr, int addrlen, |