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-rw-r--r--fs/cifs/file.c35
1 files changed, 22 insertions, 13 deletions
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 853d6d1cc822..755584684f6c 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -2043,7 +2043,8 @@ retry:
2043 } 2043 }
2044 wdata->pid = wdata->cfile->pid; 2044 wdata->pid = wdata->cfile->pid;
2045 server = tlink_tcon(wdata->cfile->tlink)->ses->server; 2045 server = tlink_tcon(wdata->cfile->tlink)->ses->server;
2046 rc = server->ops->async_writev(wdata); 2046 rc = server->ops->async_writev(wdata,
2047 cifs_writedata_release);
2047 } while (wbc->sync_mode == WB_SYNC_ALL && rc == -EAGAIN); 2048 } while (wbc->sync_mode == WB_SYNC_ALL && rc == -EAGAIN);
2048 2049
2049 for (i = 0; i < nr_pages; ++i) 2050 for (i = 0; i < nr_pages; ++i)
@@ -2331,9 +2332,20 @@ size_t get_numpages(const size_t wsize, const size_t len, size_t *cur_len)
2331} 2332}
2332 2333
2333static void 2334static void
2334cifs_uncached_writev_complete(struct work_struct *work) 2335cifs_uncached_writedata_release(struct kref *refcount)
2335{ 2336{
2336 int i; 2337 int i;
2338 struct cifs_writedata *wdata = container_of(refcount,
2339 struct cifs_writedata, refcount);
2340
2341 for (i = 0; i < wdata->nr_pages; i++)
2342 put_page(wdata->pages[i]);
2343 cifs_writedata_release(refcount);
2344}
2345
2346static void
2347cifs_uncached_writev_complete(struct work_struct *work)
2348{
2337 struct cifs_writedata *wdata = container_of(work, 2349 struct cifs_writedata *wdata = container_of(work,
2338 struct cifs_writedata, work); 2350 struct cifs_writedata, work);
2339 struct inode *inode = wdata->cfile->dentry->d_inode; 2351 struct inode *inode = wdata->cfile->dentry->d_inode;
@@ -2347,12 +2359,7 @@ cifs_uncached_writev_complete(struct work_struct *work)
2347 2359
2348 complete(&wdata->done); 2360 complete(&wdata->done);
2349 2361
2350 if (wdata->result != -EAGAIN) { 2362 kref_put(&wdata->refcount, cifs_uncached_writedata_release);
2351 for (i = 0; i < wdata->nr_pages; i++)
2352 put_page(wdata->pages[i]);
2353 }
2354
2355 kref_put(&wdata->refcount, cifs_writedata_release);
2356} 2363}
2357 2364
2358/* attempt to send write to server, retry on any -EAGAIN errors */ 2365/* attempt to send write to server, retry on any -EAGAIN errors */
@@ -2370,7 +2377,8 @@ cifs_uncached_retry_writev(struct cifs_writedata *wdata)
2370 if (rc != 0) 2377 if (rc != 0)
2371 continue; 2378 continue;
2372 } 2379 }
2373 rc = server->ops->async_writev(wdata); 2380 rc = server->ops->async_writev(wdata,
2381 cifs_uncached_writedata_release);
2374 } while (rc == -EAGAIN); 2382 } while (rc == -EAGAIN);
2375 2383
2376 return rc; 2384 return rc;
@@ -2454,7 +2462,8 @@ cifs_iovec_write(struct file *file, const struct iovec *iov,
2454 wdata->tailsz = cur_len - ((nr_pages - 1) * PAGE_SIZE); 2462 wdata->tailsz = cur_len - ((nr_pages - 1) * PAGE_SIZE);
2455 rc = cifs_uncached_retry_writev(wdata); 2463 rc = cifs_uncached_retry_writev(wdata);
2456 if (rc) { 2464 if (rc) {
2457 kref_put(&wdata->refcount, cifs_writedata_release); 2465 kref_put(&wdata->refcount,
2466 cifs_uncached_writedata_release);
2458 break; 2467 break;
2459 } 2468 }
2460 2469
@@ -2496,7 +2505,7 @@ restart_loop:
2496 } 2505 }
2497 } 2506 }
2498 list_del_init(&wdata->list); 2507 list_del_init(&wdata->list);
2499 kref_put(&wdata->refcount, cifs_writedata_release); 2508 kref_put(&wdata->refcount, cifs_uncached_writedata_release);
2500 } 2509 }
2501 2510
2502 if (total_written > 0) 2511 if (total_written > 0)
@@ -2559,8 +2568,8 @@ cifs_writev(struct kiocb *iocb, const struct iovec *iov,
2559 if (rc > 0) { 2568 if (rc > 0) {
2560 ssize_t err; 2569 ssize_t err;
2561 2570
2562 err = generic_write_sync(file, pos, rc); 2571 err = generic_write_sync(file, iocb->ki_pos - rc, rc);
2563 if (err < 0 && rc > 0) 2572 if (err < 0)
2564 rc = err; 2573 rc = err;
2565 } 2574 }
2566 2575