Lines Matching full:wc
794 static void ocfs2_unlock_pages(struct ocfs2_write_ctxt *wc) in ocfs2_unlock_pages() argument
803 if (wc->w_target_locked) { in ocfs2_unlock_pages()
804 BUG_ON(!wc->w_target_page); in ocfs2_unlock_pages()
805 for (i = 0; i < wc->w_num_pages; i++) { in ocfs2_unlock_pages()
806 if (wc->w_target_page == wc->w_pages[i]) { in ocfs2_unlock_pages()
807 wc->w_pages[i] = NULL; in ocfs2_unlock_pages()
811 mark_page_accessed(wc->w_target_page); in ocfs2_unlock_pages()
812 put_page(wc->w_target_page); in ocfs2_unlock_pages()
814 ocfs2_unlock_and_free_pages(wc->w_pages, wc->w_num_pages); in ocfs2_unlock_pages()
833 struct ocfs2_write_ctxt *wc) in ocfs2_free_write_ctxt() argument
835 ocfs2_free_unwritten_list(inode, &wc->w_unwritten_list); in ocfs2_free_write_ctxt()
836 ocfs2_unlock_pages(wc); in ocfs2_free_write_ctxt()
837 brelse(wc->w_di_bh); in ocfs2_free_write_ctxt()
838 kfree(wc); in ocfs2_free_write_ctxt()
847 struct ocfs2_write_ctxt *wc; in ocfs2_alloc_write_ctxt() local
849 wc = kzalloc(sizeof(struct ocfs2_write_ctxt), GFP_NOFS); in ocfs2_alloc_write_ctxt()
850 if (!wc) in ocfs2_alloc_write_ctxt()
853 wc->w_cpos = pos >> osb->s_clustersize_bits; in ocfs2_alloc_write_ctxt()
854 wc->w_first_new_cpos = UINT_MAX; in ocfs2_alloc_write_ctxt()
856 wc->w_clen = cend - wc->w_cpos + 1; in ocfs2_alloc_write_ctxt()
858 wc->w_di_bh = di_bh; in ocfs2_alloc_write_ctxt()
859 wc->w_type = type; in ocfs2_alloc_write_ctxt()
862 wc->w_large_pages = 1; in ocfs2_alloc_write_ctxt()
864 wc->w_large_pages = 0; in ocfs2_alloc_write_ctxt()
866 ocfs2_init_dealloc_ctxt(&wc->w_dealloc); in ocfs2_alloc_write_ctxt()
867 INIT_LIST_HEAD(&wc->w_unwritten_list); in ocfs2_alloc_write_ctxt()
869 *wcp = wc; in ocfs2_alloc_write_ctxt()
920 struct ocfs2_write_ctxt *wc, in ocfs2_write_failure() argument
928 if (wc->w_target_page) in ocfs2_write_failure()
929 ocfs2_zero_new_buffers(wc->w_target_page, from, to); in ocfs2_write_failure()
931 for(i = 0; i < wc->w_num_pages; i++) { in ocfs2_write_failure()
932 tmppage = wc->w_pages[i]; in ocfs2_write_failure()
936 ocfs2_jbd2_inode_add_write(wc->w_handle, inode, in ocfs2_write_failure()
945 struct ocfs2_write_ctxt *wc, in ocfs2_prepare_page_for_write() argument
964 if (page == wc->w_target_page) { in ocfs2_prepare_page_for_write()
1029 struct ocfs2_write_ctxt *wc, in ocfs2_grab_pages_for_write() argument
1049 wc->w_num_pages = ocfs2_pages_per_cluster(inode->i_sb); in ocfs2_grab_pages_for_write()
1059 if ((start + wc->w_num_pages) > end_index) in ocfs2_grab_pages_for_write()
1060 wc->w_num_pages = end_index - start; in ocfs2_grab_pages_for_write()
1062 wc->w_num_pages = 1; in ocfs2_grab_pages_for_write()
1067 for(i = 0; i < wc->w_num_pages; i++) { in ocfs2_grab_pages_for_write()
1071 wc->w_type == OCFS2_WRITE_MMAP) { in ocfs2_grab_pages_for_write()
1088 wc->w_pages[i] = mmap_page; in ocfs2_grab_pages_for_write()
1089 wc->w_target_locked = true; in ocfs2_grab_pages_for_write()
1091 wc->w_type == OCFS2_WRITE_DIRECT) { in ocfs2_grab_pages_for_write()
1093 wc->w_pages[i] = NULL; in ocfs2_grab_pages_for_write()
1096 wc->w_pages[i] = find_or_create_page(mapping, index, in ocfs2_grab_pages_for_write()
1098 if (!wc->w_pages[i]) { in ocfs2_grab_pages_for_write()
1104 wait_for_stable_page(wc->w_pages[i]); in ocfs2_grab_pages_for_write()
1107 wc->w_target_page = wc->w_pages[i]; in ocfs2_grab_pages_for_write()
1111 wc->w_target_locked = false; in ocfs2_grab_pages_for_write()
1124 struct ocfs2_write_ctxt *wc, u32 cpos, in ocfs2_write_cluster() argument
1143 wc->w_di_bh, wc->w_handle, in ocfs2_write_cluster()
1163 wc->w_di_bh); in ocfs2_write_cluster()
1165 wc->w_handle, cpos, 1, *phys, in ocfs2_write_cluster()
1166 meta_ac, &wc->w_dealloc); in ocfs2_write_cluster()
1191 for(i = 0; i < wc->w_num_pages; i++) { in ocfs2_write_cluster()
1195 if (wc->w_pages[i] == NULL) { in ocfs2_write_cluster()
1200 tmpret = ocfs2_prepare_page_for_write(inode, &p_blkno, wc, in ocfs2_write_cluster()
1201 wc->w_pages[i], cpos, in ocfs2_write_cluster()
1215 ocfs2_write_failure(inode, wc, user_pos, user_len); in ocfs2_write_cluster()
1225 struct ocfs2_write_ctxt *wc, in ocfs2_write_cluster_by_desc() argument
1234 for (i = 0; i < wc->w_clen; i++) { in ocfs2_write_cluster_by_desc()
1235 desc = &wc->w_desc[i]; in ocfs2_write_cluster_by_desc()
1251 wc, desc->c_cpos, pos, local_len); in ocfs2_write_cluster_by_desc()
1272 struct ocfs2_write_ctxt *wc, in ocfs2_set_target_boundaries() argument
1277 wc->w_target_from = pos & (PAGE_SIZE - 1); in ocfs2_set_target_boundaries()
1278 wc->w_target_to = wc->w_target_from + len; in ocfs2_set_target_boundaries()
1292 if (wc->w_large_pages) { in ocfs2_set_target_boundaries()
1299 desc = &wc->w_desc[0]; in ocfs2_set_target_boundaries()
1303 &wc->w_target_from, in ocfs2_set_target_boundaries()
1306 desc = &wc->w_desc[wc->w_clen - 1]; in ocfs2_set_target_boundaries()
1311 &wc->w_target_to); in ocfs2_set_target_boundaries()
1313 wc->w_target_from = 0; in ocfs2_set_target_boundaries()
1314 wc->w_target_to = PAGE_SIZE; in ocfs2_set_target_boundaries()
1326 struct ocfs2_write_ctxt *wc, in ocfs2_unwritten_check() argument
1350 if (wc->w_type != OCFS2_WRITE_DIRECT) in ocfs2_unwritten_check()
1368 list_add_tail(&new->ue_node, &wc->w_unwritten_list); in ocfs2_unwritten_check()
1369 wc->w_unwritten_count++; in ocfs2_unwritten_check()
1387 struct ocfs2_write_ctxt *wc, in ocfs2_populate_write_desc() argument
1401 for (i = 0; i < wc->w_clen; i++) { in ocfs2_populate_write_desc()
1402 desc = &wc->w_desc[i]; in ocfs2_populate_write_desc()
1403 desc->c_cpos = wc->w_cpos + i; in ocfs2_populate_write_desc()
1444 if (desc->c_cpos >= wc->w_first_new_cpos) { in ocfs2_populate_write_desc()
1462 ret = ocfs2_unwritten_check(inode, wc, desc); in ocfs2_populate_write_desc()
1478 struct ocfs2_write_ctxt *wc) in ocfs2_write_begin_inline() argument
1484 struct ocfs2_dinode *di = (struct ocfs2_dinode *)wc->w_di_bh->b_data; in ocfs2_write_begin_inline()
1504 wc->w_pages[0] = wc->w_target_page = page; in ocfs2_write_begin_inline()
1505 wc->w_num_pages = 1; in ocfs2_write_begin_inline()
1507 ret = ocfs2_journal_access_di(handle, INODE_CACHE(inode), wc->w_di_bh, in ocfs2_write_begin_inline()
1520 ret = ocfs2_read_inline_data(inode, page, wc->w_di_bh); in ocfs2_write_begin_inline()
1528 wc->w_handle = handle; in ocfs2_write_begin_inline()
1545 struct ocfs2_write_ctxt *wc) in ocfs2_try_to_write_inline_data() argument
1561 ocfs2_size_fits_inline_data(wc->w_di_bh, end)) in ocfs2_try_to_write_inline_data()
1568 ret = ocfs2_convert_inline_data_to_extents(inode, wc->w_di_bh); in ocfs2_try_to_write_inline_data()
1583 di = (struct ocfs2_dinode *)wc->w_di_bh->b_data; in ocfs2_try_to_write_inline_data()
1589 ret = ocfs2_write_begin_inline(mapping, inode, wc); in ocfs2_try_to_write_inline_data()
1616 struct ocfs2_write_ctxt *wc) in ocfs2_expand_nonsparse_inode() argument
1630 /* There is no wc if this is call from direct. */ in ocfs2_expand_nonsparse_inode()
1631 if (wc) in ocfs2_expand_nonsparse_inode()
1632 wc->w_first_new_cpos = in ocfs2_expand_nonsparse_inode()
1657 struct ocfs2_write_ctxt *wc; in ocfs2_write_begin_nolock() local
1668 ret = ocfs2_alloc_write_ctxt(&wc, osb, pos, len, type, di_bh); in ocfs2_write_begin_nolock()
1676 mmap_page, wc); in ocfs2_write_begin_nolock()
1693 len, wc); in ocfs2_write_begin_nolock()
1705 clusters_need = wc->w_clen; in ocfs2_write_begin_nolock()
1707 wc->w_cpos, wc->w_clen, UINT_MAX); in ocfs2_write_begin_nolock()
1714 ret = ocfs2_populate_write_desc(inode, wc, &clusters_to_alloc, in ocfs2_write_begin_nolock()
1722 di = (struct ocfs2_dinode *)wc->w_di_bh->b_data; in ocfs2_write_begin_nolock()
1744 wc->w_di_bh); in ocfs2_write_begin_nolock()
1767 if (wc->w_clen && (wc->w_desc[0].c_needs_zero || in ocfs2_write_begin_nolock()
1768 wc->w_desc[wc->w_clen - 1].c_needs_zero)) in ocfs2_write_begin_nolock()
1773 ocfs2_set_target_boundaries(osb, wc, pos, len, cluster_of_pages); in ocfs2_write_begin_nolock()
1782 wc->w_handle = handle; in ocfs2_write_begin_nolock()
1791 ret = ocfs2_journal_access_di(handle, INODE_CACHE(inode), wc->w_di_bh, in ocfs2_write_begin_nolock()
1803 ret = ocfs2_grab_pages_for_write(mapping, wc, wc->w_cpos, pos, len, in ocfs2_write_begin_nolock()
1817 BUG_ON(wc->w_target_page); in ocfs2_write_begin_nolock()
1822 ret = ocfs2_write_cluster_by_desc(mapping, data_ac, meta_ac, wc, pos, in ocfs2_write_begin_nolock()
1836 *pagep = wc->w_target_page; in ocfs2_write_begin_nolock()
1837 *fsdata = wc; in ocfs2_write_begin_nolock()
1854 if (wc->w_target_locked) in ocfs2_write_begin_nolock()
1857 ocfs2_free_write_ctxt(inode, wc); in ocfs2_write_begin_nolock()
1932 struct ocfs2_write_ctxt *wc) in ocfs2_write_end_inline() argument
1937 if (!PageUptodate(wc->w_target_page)) { in ocfs2_write_end_inline()
1943 kaddr = kmap_atomic(wc->w_target_page); in ocfs2_write_end_inline()
1961 struct ocfs2_write_ctxt *wc = fsdata; in ocfs2_write_end_nolock() local
1962 struct ocfs2_dinode *di = (struct ocfs2_dinode *)wc->w_di_bh->b_data; in ocfs2_write_end_nolock()
1963 handle_t *handle = wc->w_handle; in ocfs2_write_end_nolock()
1966 BUG_ON(!list_empty(&wc->w_unwritten_list)); in ocfs2_write_end_nolock()
1970 wc->w_di_bh, OCFS2_JOURNAL_ACCESS_WRITE); in ocfs2_write_end_nolock()
1979 ocfs2_write_end_inline(inode, pos, len, &copied, di, wc); in ocfs2_write_end_nolock()
1983 if (unlikely(copied < len) && wc->w_target_page) { in ocfs2_write_end_nolock()
1984 if (!PageUptodate(wc->w_target_page)) in ocfs2_write_end_nolock()
1987 ocfs2_zero_new_buffers(wc->w_target_page, start+copied, in ocfs2_write_end_nolock()
1990 if (wc->w_target_page) in ocfs2_write_end_nolock()
1991 flush_dcache_page(wc->w_target_page); in ocfs2_write_end_nolock()
1993 for(i = 0; i < wc->w_num_pages; i++) { in ocfs2_write_end_nolock()
1994 tmppage = wc->w_pages[i]; in ocfs2_write_end_nolock()
2000 if (tmppage == wc->w_target_page) { in ocfs2_write_end_nolock()
2001 from = wc->w_target_from; in ocfs2_write_end_nolock()
2002 to = wc->w_target_to; in ocfs2_write_end_nolock()
2032 if (wc->w_type != OCFS2_WRITE_DIRECT) { in ocfs2_write_end_nolock()
2047 ocfs2_journal_dirty(handle, wc->w_di_bh); in ocfs2_write_end_nolock()
2055 ocfs2_unlock_pages(wc); in ocfs2_write_end_nolock()
2060 ocfs2_run_deallocs(osb, &wc->w_dealloc); in ocfs2_write_end_nolock()
2062 brelse(wc->w_di_bh); in ocfs2_write_end_nolock()
2063 kfree(wc); in ocfs2_write_end_nolock()
2136 struct ocfs2_write_ctxt *wc; in ocfs2_dio_wr_get_block() local
2231 (void **)&wc, di_bh, NULL); in ocfs2_dio_wr_get_block()
2237 desc = &wc->w_desc[0]; in ocfs2_dio_wr_get_block()
2255 if (!list_empty(&wc->w_unwritten_list)) { in ocfs2_dio_wr_get_block()
2258 ue = list_first_entry(&wc->w_unwritten_list, in ocfs2_dio_wr_get_block()
2265 list_splice_tail_init(&wc->w_unwritten_list, &dwc->dw_zero_list); in ocfs2_dio_wr_get_block()
2266 dwc->dw_zero_count += wc->w_unwritten_count; in ocfs2_dio_wr_get_block()
2269 ret = ocfs2_write_end_nolock(inode->i_mapping, pos, len, len, wc); in ocfs2_dio_wr_get_block()