smb/client/cifsfs.c

1195 	unsigned long long fpos, fend;
1206 	fend = fpos + size - 1;
1208 	*_fend   = max_t(unsigned long long, *_fend, fend);
1209 	if ((first && pos == fpos) || (!first && pos == fend))
1212 	rc = filemap_write_and_wait_range(inode->i_mapping, fpos, fend);
1229 	unsigned long long destend, fstart, fend, new_size;
1286 	fend = destend;
1288 	rc = cifs_flush_folio(target_inode, destoff, &fstart, &fend, true);
1291 	rc = cifs_flush_folio(target_inode, destend, &fstart, &fend, false);
1294 	if (fend > target_cifsi->netfs.zero_point)
1295 		target_cifsi->netfs.zero_point = fend + 1;
1298 	cifs_dbg(FYI, "about to discard pages %llx-%llx\n", fstart, fend);
1299 	truncate_inode_pages_range(&target_inode->i_data, fstart, fend);
1343 	unsigned long long destend, fstart, fend;
1399 	fend = destend;
1401 	rc = cifs_flush_folio(target_inode, destoff, &fstart, &fend, true);
1404 	rc = cifs_flush_folio(target_inode, destend, &fstart, &fend, false);
1407 	if (fend > target_cifsi->netfs.zero_point)
1408 		target_cifsi->netfs.zero_point = fend + 1;
1411 	truncate_inode_pages_range(&target_inode->i_data, fstart, fend);