bio_for_each_segment_all(bv, bio, i) {
struct page *page = bv->bv_page;
-
- if (bio_data_dir(bio) == READ) {
- if (!err) {
- SetPageUptodate(page);
- } else {
- ClearPageUptodate(page);
- SetPageError(page);
- }
- unlock_page(page);
- } else { /* bio_data_dir(bio) == WRITE */
- if (err) {
- SetPageError(page);
- if (page->mapping)
- set_bit(AS_EIO, &page->mapping->flags);
- }
- end_page_writeback(page);
- }
+ page_endio(page, bio_data_dir(bio), err);
}
bio_put(bio);
alloc_new:
if (bio == NULL) {
+ if (first_hole == blocks_per_page) {
+ if (!bdev_read_page(bdev, blocks[0] << (blkbits - 9),
+ page))
+ goto out;
+ }
bio = mpage_alloc(bdev, blocks[0] << (blkbits - 9),
min_t(int, nr_pages, bio_get_nr_vecs(bdev)),
GFP_KERNEL);
alloc_new:
if (bio == NULL) {
+ if (first_unmapped == blocks_per_page) {
+ if (!bdev_write_page(bdev, blocks[0] << (blkbits - 9),
+ page, wbc)) {
+ clean_buffers(page, first_unmapped);
+ goto out;
+ }
+ }
bio = mpage_alloc(bdev, blocks[0] << (blkbits - 9),
bio_get_nr_vecs(bdev), GFP_NOFS|__GFP_HIGH);
if (bio == NULL)