nfsd : Define NFSD only when FILE_LOCKING is enabled
[safe/jmp/linux-2.6] / fs / mpage.c
index dbcc7af..16c3ef3 100644 (file)
@@ -6,7 +6,7 @@
  * Contains functions related to preparing and submitting BIOs which contain
  * multiple pagecache pages.
  *
- * 15May2002   akpm@zip.com.au
+ * 15May2002   Andrew Morton
  *             Initial version
  * 27Jun2002   axboe@suse.de
  *             use bio_add_page() to build bio's just the right size
@@ -241,7 +241,6 @@ do_mpage_readpage(struct bio *bio, struct page *page, unsigned nr_pages,
                                first_hole = page_block;
                        page_block++;
                        block_in_file++;
-                       clear_buffer_mapped(map_bh);
                        continue;
                }
 
@@ -308,7 +307,10 @@ alloc_new:
                goto alloc_new;
        }
 
-       if (buffer_boundary(map_bh) || (first_hole != blocks_per_page))
+       relative_block = block_in_file - *first_logical_block;
+       nblocks = map_bh->b_size >> blkbits;
+       if ((buffer_boundary(map_bh) && relative_block == nblocks) ||
+           (first_hole != blocks_per_page))
                bio = mpage_bio_submit(READ, bio);
        else
                *last_block_in_bio = blocks[blocks_per_page - 1];