Lines Matching defs:dbh
96 * @dbh: destination buffer
99 void nilfs_copy_buffer(struct buffer_head *dbh, struct buffer_head *sbh)
103 struct page *spage = sbh->b_page, *dpage = dbh->b_page;
108 memcpy(kaddr1 + bh_offset(dbh), kaddr0 + bh_offset(sbh), sbh->b_size);
112 dbh->b_state = sbh->b_state & NILFS_BUFFER_INHERENT_BITS;
113 dbh->b_blocknr = sbh->b_blocknr;
114 dbh->b_bdev = sbh->b_bdev;
116 bh = dbh;
118 while ((bh = bh->b_this_page) != dbh) {
200 struct buffer_head *dbh, *dbufs, *sbh;
206 dbh = folio_buffers(dst);
207 if (!dbh)
208 dbh = create_empty_buffers(dst, sbh->b_size, 0);
213 dbufs = dbh;
216 lock_buffer(dbh);
217 dbh->b_state = sbh->b_state & mask;
218 dbh->b_blocknr = sbh->b_blocknr;
219 dbh->b_bdev = sbh->b_bdev;
221 dbh = dbh->b_this_page;
222 } while (dbh != dbufs);
237 unlock_buffer(dbh);
239 dbh = dbh->b_this_page;
240 } while (dbh != dbufs);