- /* Don't accept excess data. The spec doesn't say
- * what to do in this case. We'll ignore the error.
- */
- amount = min(amount, bh->bulk_out_intended_length);
-
- /* Don't write a partial block */
- amount = round_down(amount, curlun->blksize);
- if (amount == 0)
- goto empty_write;
-
- /* Perform the write */
- file_offset_tmp = file_offset;
- nwritten = vfs_write(curlun->filp,
- (char __user *)bh->buf,
- amount, &file_offset_tmp);
- VLDBG(curlun, "file write %u @ %llu -> %d\n", amount,
- (unsigned long long)file_offset, (int)nwritten);
- if (signal_pending(current))
- return -EINTR; /* Interrupted! */
-
- if (nwritten < 0) {
- LDBG(curlun, "error in file write: %d\n",
- (int)nwritten);
- nwritten = 0;
- } else if (nwritten < amount) {
- LDBG(curlun, "partial file write: %d/%u\n",
- (int)nwritten, amount);
- nwritten = round_down(nwritten, curlun->blksize);
- }
- file_offset += nwritten;
- amount_left_to_write -= nwritten;
- common->residue -= nwritten;