diff options
Diffstat (limited to 'fs/cifs')
| -rw-r--r-- | fs/cifs/file.c | 26 |
1 files changed, 6 insertions, 20 deletions
diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 4202e74b2db5..ca2bc5406306 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -2563,7 +2563,6 @@ cifs_write_from_iter(loff_t offset, size_t len, struct iov_iter *from, ssize_t cifs_user_writev(struct kiocb *iocb, struct iov_iter *from) { struct file *file = iocb->ki_filp; - size_t len; ssize_t total_written = 0; struct cifsFileInfo *open_file; struct cifs_tcon *tcon; @@ -2579,16 +2578,10 @@ ssize_t cifs_user_writev(struct kiocb *iocb, struct iov_iter *from) * write request. */ - len = iov_iter_count(from); - rc = generic_write_checks(file, &iocb->ki_pos, &len); - if (rc) + rc = generic_write_checks(iocb, from); + if (rc <= 0) return rc; - if (!len) - return 0; - - iov_iter_truncate(from, len); - INIT_LIST_HEAD(&wdata_list); cifs_sb = CIFS_FILE_SB(file); open_file = file->private_data; @@ -2599,8 +2592,8 @@ ssize_t cifs_user_writev(struct kiocb *iocb, struct iov_iter *from) memcpy(&saved_from, from, sizeof(struct iov_iter)); - rc = cifs_write_from_iter(iocb->ki_pos, len, from, open_file, cifs_sb, - &wdata_list); + rc = cifs_write_from_iter(iocb->ki_pos, iov_iter_count(from), from, + open_file, cifs_sb, &wdata_list); /* * If at least one write was successfully sent, then discard any rc @@ -2674,7 +2667,6 @@ cifs_writev(struct kiocb *iocb, struct iov_iter *from) struct cifsInodeInfo *cinode = CIFS_I(inode); struct TCP_Server_Info *server = tlink_tcon(cfile->tlink)->ses->server; ssize_t rc; - size_t count; /* * We need to hold the sem to be sure nobody modifies lock list @@ -2683,16 +2675,10 @@ cifs_writev(struct kiocb *iocb, struct iov_iter *from) down_read(&cinode->lock_sem); mutex_lock(&inode->i_mutex); - count = iov_iter_count(from); - rc = generic_write_checks(file, &iocb->ki_pos, &count); - if (rc) + rc = generic_write_checks(iocb, from); + if (rc <= 0) goto out; - if (count == 0) - goto out; - - iov_iter_truncate(from, count); - if (!cifs_find_lock_conflict(cfile, iocb->ki_pos, iov_iter_count(from), server->vals->exclusive_lock_type, NULL, CIFS_WRITE_OP)) |