Lines Matching refs:wc
791 static void ocfs2_unlock_pages(struct ocfs2_write_ctxt *wc) in ocfs2_unlock_pages() argument
800 if (wc->w_target_locked) { in ocfs2_unlock_pages()
801 BUG_ON(!wc->w_target_page); in ocfs2_unlock_pages()
802 for (i = 0; i < wc->w_num_pages; i++) { in ocfs2_unlock_pages()
803 if (wc->w_target_page == wc->w_pages[i]) { in ocfs2_unlock_pages()
804 wc->w_pages[i] = NULL; in ocfs2_unlock_pages()
808 mark_page_accessed(wc->w_target_page); in ocfs2_unlock_pages()
809 put_page(wc->w_target_page); in ocfs2_unlock_pages()
811 ocfs2_unlock_and_free_pages(wc->w_pages, wc->w_num_pages); in ocfs2_unlock_pages()
830 struct ocfs2_write_ctxt *wc) in ocfs2_free_write_ctxt() argument
832 ocfs2_free_unwritten_list(inode, &wc->w_unwritten_list); in ocfs2_free_write_ctxt()
833 ocfs2_unlock_pages(wc); in ocfs2_free_write_ctxt()
834 brelse(wc->w_di_bh); in ocfs2_free_write_ctxt()
835 kfree(wc); in ocfs2_free_write_ctxt()
844 struct ocfs2_write_ctxt *wc; in ocfs2_alloc_write_ctxt() local
846 wc = kzalloc(sizeof(struct ocfs2_write_ctxt), GFP_NOFS); in ocfs2_alloc_write_ctxt()
847 if (!wc) in ocfs2_alloc_write_ctxt()
850 wc->w_cpos = pos >> osb->s_clustersize_bits; in ocfs2_alloc_write_ctxt()
851 wc->w_first_new_cpos = UINT_MAX; in ocfs2_alloc_write_ctxt()
853 wc->w_clen = cend - wc->w_cpos + 1; in ocfs2_alloc_write_ctxt()
855 wc->w_di_bh = di_bh; in ocfs2_alloc_write_ctxt()
856 wc->w_type = type; in ocfs2_alloc_write_ctxt()
859 wc->w_large_pages = 1; in ocfs2_alloc_write_ctxt()
861 wc->w_large_pages = 0; in ocfs2_alloc_write_ctxt()
863 ocfs2_init_dealloc_ctxt(&wc->w_dealloc); in ocfs2_alloc_write_ctxt()
864 INIT_LIST_HEAD(&wc->w_unwritten_list); in ocfs2_alloc_write_ctxt()
866 *wcp = wc; in ocfs2_alloc_write_ctxt()
917 struct ocfs2_write_ctxt *wc, in ocfs2_write_failure() argument
925 if (wc->w_target_page) in ocfs2_write_failure()
926 ocfs2_zero_new_buffers(wc->w_target_page, from, to); in ocfs2_write_failure()
928 for(i = 0; i < wc->w_num_pages; i++) { in ocfs2_write_failure()
929 tmppage = wc->w_pages[i]; in ocfs2_write_failure()
933 ocfs2_jbd2_inode_add_write(wc->w_handle, inode, in ocfs2_write_failure()
942 struct ocfs2_write_ctxt *wc, in ocfs2_prepare_page_for_write() argument
961 if (page == wc->w_target_page) { in ocfs2_prepare_page_for_write()
1026 struct ocfs2_write_ctxt *wc, in ocfs2_grab_pages_for_write() argument
1046 wc->w_num_pages = ocfs2_pages_per_cluster(inode->i_sb); in ocfs2_grab_pages_for_write()
1056 if ((start + wc->w_num_pages) > end_index) in ocfs2_grab_pages_for_write()
1057 wc->w_num_pages = end_index - start; in ocfs2_grab_pages_for_write()
1059 wc->w_num_pages = 1; in ocfs2_grab_pages_for_write()
1064 for(i = 0; i < wc->w_num_pages; i++) { in ocfs2_grab_pages_for_write()
1068 wc->w_type == OCFS2_WRITE_MMAP) { in ocfs2_grab_pages_for_write()
1085 wc->w_pages[i] = mmap_page; in ocfs2_grab_pages_for_write()
1086 wc->w_target_locked = true; in ocfs2_grab_pages_for_write()
1088 wc->w_type == OCFS2_WRITE_DIRECT) { in ocfs2_grab_pages_for_write()
1090 wc->w_pages[i] = NULL; in ocfs2_grab_pages_for_write()
1093 wc->w_pages[i] = find_or_create_page(mapping, index, in ocfs2_grab_pages_for_write()
1095 if (!wc->w_pages[i]) { in ocfs2_grab_pages_for_write()
1101 wait_for_stable_page(wc->w_pages[i]); in ocfs2_grab_pages_for_write()
1104 wc->w_target_page = wc->w_pages[i]; in ocfs2_grab_pages_for_write()
1108 wc->w_target_locked = false; in ocfs2_grab_pages_for_write()
1121 struct ocfs2_write_ctxt *wc, u32 cpos, in ocfs2_write_cluster() argument
1140 wc->w_di_bh, wc->w_handle, in ocfs2_write_cluster()
1160 wc->w_di_bh); in ocfs2_write_cluster()
1162 wc->w_handle, cpos, 1, *phys, in ocfs2_write_cluster()
1163 meta_ac, &wc->w_dealloc); in ocfs2_write_cluster()
1188 for(i = 0; i < wc->w_num_pages; i++) { in ocfs2_write_cluster()
1192 if (wc->w_pages[i] == NULL) { in ocfs2_write_cluster()
1197 tmpret = ocfs2_prepare_page_for_write(inode, &p_blkno, wc, in ocfs2_write_cluster()
1198 wc->w_pages[i], cpos, in ocfs2_write_cluster()
1212 ocfs2_write_failure(inode, wc, user_pos, user_len); in ocfs2_write_cluster()
1222 struct ocfs2_write_ctxt *wc, in ocfs2_write_cluster_by_desc() argument
1231 for (i = 0; i < wc->w_clen; i++) { in ocfs2_write_cluster_by_desc()
1232 desc = &wc->w_desc[i]; in ocfs2_write_cluster_by_desc()
1248 wc, desc->c_cpos, pos, local_len); in ocfs2_write_cluster_by_desc()
1269 struct ocfs2_write_ctxt *wc, in ocfs2_set_target_boundaries() argument
1274 wc->w_target_from = pos & (PAGE_SIZE - 1); in ocfs2_set_target_boundaries()
1275 wc->w_target_to = wc->w_target_from + len; in ocfs2_set_target_boundaries()
1289 if (wc->w_large_pages) { in ocfs2_set_target_boundaries()
1296 desc = &wc->w_desc[0]; in ocfs2_set_target_boundaries()
1300 &wc->w_target_from, in ocfs2_set_target_boundaries()
1303 desc = &wc->w_desc[wc->w_clen - 1]; in ocfs2_set_target_boundaries()
1308 &wc->w_target_to); in ocfs2_set_target_boundaries()
1310 wc->w_target_from = 0; in ocfs2_set_target_boundaries()
1311 wc->w_target_to = PAGE_SIZE; in ocfs2_set_target_boundaries()
1323 struct ocfs2_write_ctxt *wc, in ocfs2_unwritten_check() argument
1347 if (wc->w_type != OCFS2_WRITE_DIRECT) in ocfs2_unwritten_check()
1365 list_add_tail(&new->ue_node, &wc->w_unwritten_list); in ocfs2_unwritten_check()
1366 wc->w_unwritten_count++; in ocfs2_unwritten_check()
1384 struct ocfs2_write_ctxt *wc, in ocfs2_populate_write_desc() argument
1398 for (i = 0; i < wc->w_clen; i++) { in ocfs2_populate_write_desc()
1399 desc = &wc->w_desc[i]; in ocfs2_populate_write_desc()
1400 desc->c_cpos = wc->w_cpos + i; in ocfs2_populate_write_desc()
1441 if (desc->c_cpos >= wc->w_first_new_cpos) { in ocfs2_populate_write_desc()
1459 ret = ocfs2_unwritten_check(inode, wc, desc); in ocfs2_populate_write_desc()
1475 struct ocfs2_write_ctxt *wc) in ocfs2_write_begin_inline() argument
1481 struct ocfs2_dinode *di = (struct ocfs2_dinode *)wc->w_di_bh->b_data; in ocfs2_write_begin_inline()
1501 wc->w_pages[0] = wc->w_target_page = page; in ocfs2_write_begin_inline()
1502 wc->w_num_pages = 1; in ocfs2_write_begin_inline()
1504 ret = ocfs2_journal_access_di(handle, INODE_CACHE(inode), wc->w_di_bh, in ocfs2_write_begin_inline()
1517 ret = ocfs2_read_inline_data(inode, page, wc->w_di_bh); in ocfs2_write_begin_inline()
1525 wc->w_handle = handle; in ocfs2_write_begin_inline()
1542 struct ocfs2_write_ctxt *wc) in ocfs2_try_to_write_inline_data() argument
1558 ocfs2_size_fits_inline_data(wc->w_di_bh, end)) in ocfs2_try_to_write_inline_data()
1565 ret = ocfs2_convert_inline_data_to_extents(inode, wc->w_di_bh); in ocfs2_try_to_write_inline_data()
1580 di = (struct ocfs2_dinode *)wc->w_di_bh->b_data; in ocfs2_try_to_write_inline_data()
1586 ret = ocfs2_write_begin_inline(mapping, inode, wc); in ocfs2_try_to_write_inline_data()
1613 struct ocfs2_write_ctxt *wc) in ocfs2_expand_nonsparse_inode() argument
1628 if (wc) in ocfs2_expand_nonsparse_inode()
1629 wc->w_first_new_cpos = in ocfs2_expand_nonsparse_inode()
1654 struct ocfs2_write_ctxt *wc; in ocfs2_write_begin_nolock() local
1665 ret = ocfs2_alloc_write_ctxt(&wc, osb, pos, len, type, di_bh); in ocfs2_write_begin_nolock()
1673 mmap_page, wc); in ocfs2_write_begin_nolock()
1690 len, wc); in ocfs2_write_begin_nolock()
1702 clusters_need = wc->w_clen; in ocfs2_write_begin_nolock()
1704 wc->w_cpos, wc->w_clen, UINT_MAX); in ocfs2_write_begin_nolock()
1711 ret = ocfs2_populate_write_desc(inode, wc, &clusters_to_alloc, in ocfs2_write_begin_nolock()
1719 di = (struct ocfs2_dinode *)wc->w_di_bh->b_data; in ocfs2_write_begin_nolock()
1741 wc->w_di_bh); in ocfs2_write_begin_nolock()
1764 if (wc->w_clen && (wc->w_desc[0].c_needs_zero || in ocfs2_write_begin_nolock()
1765 wc->w_desc[wc->w_clen - 1].c_needs_zero)) in ocfs2_write_begin_nolock()
1770 ocfs2_set_target_boundaries(osb, wc, pos, len, cluster_of_pages); in ocfs2_write_begin_nolock()
1779 wc->w_handle = handle; in ocfs2_write_begin_nolock()
1788 ret = ocfs2_journal_access_di(handle, INODE_CACHE(inode), wc->w_di_bh, in ocfs2_write_begin_nolock()
1800 ret = ocfs2_grab_pages_for_write(mapping, wc, wc->w_cpos, pos, len, in ocfs2_write_begin_nolock()
1814 BUG_ON(wc->w_target_page); in ocfs2_write_begin_nolock()
1819 ret = ocfs2_write_cluster_by_desc(mapping, data_ac, meta_ac, wc, pos, in ocfs2_write_begin_nolock()
1833 *pagep = wc->w_target_page; in ocfs2_write_begin_nolock()
1834 *fsdata = wc; in ocfs2_write_begin_nolock()
1851 if (wc->w_target_locked) in ocfs2_write_begin_nolock()
1854 ocfs2_free_write_ctxt(inode, wc); in ocfs2_write_begin_nolock()
1929 struct ocfs2_write_ctxt *wc) in ocfs2_write_end_inline() argument
1934 if (!PageUptodate(wc->w_target_page)) { in ocfs2_write_end_inline()
1940 kaddr = kmap_atomic(wc->w_target_page); in ocfs2_write_end_inline()
1958 struct ocfs2_write_ctxt *wc = fsdata; in ocfs2_write_end_nolock() local
1959 struct ocfs2_dinode *di = (struct ocfs2_dinode *)wc->w_di_bh->b_data; in ocfs2_write_end_nolock()
1960 handle_t *handle = wc->w_handle; in ocfs2_write_end_nolock()
1963 BUG_ON(!list_empty(&wc->w_unwritten_list)); in ocfs2_write_end_nolock()
1967 wc->w_di_bh, OCFS2_JOURNAL_ACCESS_WRITE); in ocfs2_write_end_nolock()
1976 ocfs2_write_end_inline(inode, pos, len, &copied, di, wc); in ocfs2_write_end_nolock()
1980 if (unlikely(copied < len) && wc->w_target_page) { in ocfs2_write_end_nolock()
1981 if (!PageUptodate(wc->w_target_page)) in ocfs2_write_end_nolock()
1984 ocfs2_zero_new_buffers(wc->w_target_page, start+copied, in ocfs2_write_end_nolock()
1987 if (wc->w_target_page) in ocfs2_write_end_nolock()
1988 flush_dcache_page(wc->w_target_page); in ocfs2_write_end_nolock()
1990 for(i = 0; i < wc->w_num_pages; i++) { in ocfs2_write_end_nolock()
1991 tmppage = wc->w_pages[i]; in ocfs2_write_end_nolock()
1997 if (tmppage == wc->w_target_page) { in ocfs2_write_end_nolock()
1998 from = wc->w_target_from; in ocfs2_write_end_nolock()
1999 to = wc->w_target_to; in ocfs2_write_end_nolock()
2029 if (wc->w_type != OCFS2_WRITE_DIRECT) { in ocfs2_write_end_nolock()
2044 ocfs2_journal_dirty(handle, wc->w_di_bh); in ocfs2_write_end_nolock()
2052 ocfs2_unlock_pages(wc); in ocfs2_write_end_nolock()
2057 ocfs2_run_deallocs(osb, &wc->w_dealloc); in ocfs2_write_end_nolock()
2059 brelse(wc->w_di_bh); in ocfs2_write_end_nolock()
2060 kfree(wc); in ocfs2_write_end_nolock()
2133 struct ocfs2_write_ctxt *wc; in ocfs2_dio_wr_get_block() local
2228 (void **)&wc, di_bh, NULL); in ocfs2_dio_wr_get_block()
2234 desc = &wc->w_desc[0]; in ocfs2_dio_wr_get_block()
2252 if (!list_empty(&wc->w_unwritten_list)) { in ocfs2_dio_wr_get_block()
2255 ue = list_first_entry(&wc->w_unwritten_list, in ocfs2_dio_wr_get_block()
2262 list_splice_tail_init(&wc->w_unwritten_list, &dwc->dw_zero_list); in ocfs2_dio_wr_get_block()
2263 dwc->dw_zero_count += wc->w_unwritten_count; in ocfs2_dio_wr_get_block()
2266 ret = ocfs2_write_end_nolock(inode->i_mapping, pos, len, len, wc); in ocfs2_dio_wr_get_block()