Lines Matching refs:wc
803 static void ocfs2_unlock_pages(struct ocfs2_write_ctxt *wc) in ocfs2_unlock_pages() argument
812 if (wc->w_target_locked) { in ocfs2_unlock_pages()
813 BUG_ON(!wc->w_target_page); in ocfs2_unlock_pages()
814 for (i = 0; i < wc->w_num_pages; i++) { in ocfs2_unlock_pages()
815 if (wc->w_target_page == wc->w_pages[i]) { in ocfs2_unlock_pages()
816 wc->w_pages[i] = NULL; in ocfs2_unlock_pages()
820 mark_page_accessed(wc->w_target_page); in ocfs2_unlock_pages()
821 put_page(wc->w_target_page); in ocfs2_unlock_pages()
823 ocfs2_unlock_and_free_pages(wc->w_pages, wc->w_num_pages); in ocfs2_unlock_pages()
842 struct ocfs2_write_ctxt *wc) in ocfs2_free_write_ctxt() argument
844 ocfs2_free_unwritten_list(inode, &wc->w_unwritten_list); in ocfs2_free_write_ctxt()
845 ocfs2_unlock_pages(wc); in ocfs2_free_write_ctxt()
846 brelse(wc->w_di_bh); in ocfs2_free_write_ctxt()
847 kfree(wc); in ocfs2_free_write_ctxt()
856 struct ocfs2_write_ctxt *wc; in ocfs2_alloc_write_ctxt() local
858 wc = kzalloc(sizeof(struct ocfs2_write_ctxt), GFP_NOFS); in ocfs2_alloc_write_ctxt()
859 if (!wc) in ocfs2_alloc_write_ctxt()
862 wc->w_cpos = pos >> osb->s_clustersize_bits; in ocfs2_alloc_write_ctxt()
863 wc->w_first_new_cpos = UINT_MAX; in ocfs2_alloc_write_ctxt()
865 wc->w_clen = cend - wc->w_cpos + 1; in ocfs2_alloc_write_ctxt()
867 wc->w_di_bh = di_bh; in ocfs2_alloc_write_ctxt()
868 wc->w_type = type; in ocfs2_alloc_write_ctxt()
871 wc->w_large_pages = 1; in ocfs2_alloc_write_ctxt()
873 wc->w_large_pages = 0; in ocfs2_alloc_write_ctxt()
875 ocfs2_init_dealloc_ctxt(&wc->w_dealloc); in ocfs2_alloc_write_ctxt()
876 INIT_LIST_HEAD(&wc->w_unwritten_list); in ocfs2_alloc_write_ctxt()
878 *wcp = wc; in ocfs2_alloc_write_ctxt()
929 struct ocfs2_write_ctxt *wc, in ocfs2_write_failure() argument
937 if (wc->w_target_page) in ocfs2_write_failure()
938 ocfs2_zero_new_buffers(wc->w_target_page, from, to); in ocfs2_write_failure()
940 for(i = 0; i < wc->w_num_pages; i++) { in ocfs2_write_failure()
941 tmppage = wc->w_pages[i]; in ocfs2_write_failure()
945 ocfs2_jbd2_inode_add_write(wc->w_handle, inode, in ocfs2_write_failure()
954 struct ocfs2_write_ctxt *wc, in ocfs2_prepare_page_for_write() argument
973 if (page == wc->w_target_page) { in ocfs2_prepare_page_for_write()
1038 struct ocfs2_write_ctxt *wc, in ocfs2_grab_pages_for_write() argument
1058 wc->w_num_pages = ocfs2_pages_per_cluster(inode->i_sb); in ocfs2_grab_pages_for_write()
1068 if ((start + wc->w_num_pages) > end_index) in ocfs2_grab_pages_for_write()
1069 wc->w_num_pages = end_index - start; in ocfs2_grab_pages_for_write()
1071 wc->w_num_pages = 1; in ocfs2_grab_pages_for_write()
1076 for(i = 0; i < wc->w_num_pages; i++) { in ocfs2_grab_pages_for_write()
1080 wc->w_type == OCFS2_WRITE_MMAP) { in ocfs2_grab_pages_for_write()
1097 wc->w_pages[i] = mmap_page; in ocfs2_grab_pages_for_write()
1098 wc->w_target_locked = true; in ocfs2_grab_pages_for_write()
1100 wc->w_type == OCFS2_WRITE_DIRECT) { in ocfs2_grab_pages_for_write()
1102 wc->w_pages[i] = NULL; in ocfs2_grab_pages_for_write()
1105 wc->w_pages[i] = find_or_create_page(mapping, index, in ocfs2_grab_pages_for_write()
1107 if (!wc->w_pages[i]) { in ocfs2_grab_pages_for_write()
1113 wait_for_stable_page(wc->w_pages[i]); in ocfs2_grab_pages_for_write()
1116 wc->w_target_page = wc->w_pages[i]; in ocfs2_grab_pages_for_write()
1120 wc->w_target_locked = false; in ocfs2_grab_pages_for_write()
1133 struct ocfs2_write_ctxt *wc, u32 cpos, in ocfs2_write_cluster() argument
1152 wc->w_di_bh, wc->w_handle, in ocfs2_write_cluster()
1172 wc->w_di_bh); in ocfs2_write_cluster()
1174 wc->w_handle, cpos, 1, *phys, in ocfs2_write_cluster()
1175 meta_ac, &wc->w_dealloc); in ocfs2_write_cluster()
1200 for(i = 0; i < wc->w_num_pages; i++) { in ocfs2_write_cluster()
1204 if (wc->w_pages[i] == NULL) { in ocfs2_write_cluster()
1209 tmpret = ocfs2_prepare_page_for_write(inode, &p_blkno, wc, in ocfs2_write_cluster()
1210 wc->w_pages[i], cpos, in ocfs2_write_cluster()
1224 ocfs2_write_failure(inode, wc, user_pos, user_len); in ocfs2_write_cluster()
1234 struct ocfs2_write_ctxt *wc, in ocfs2_write_cluster_by_desc() argument
1243 for (i = 0; i < wc->w_clen; i++) { in ocfs2_write_cluster_by_desc()
1244 desc = &wc->w_desc[i]; in ocfs2_write_cluster_by_desc()
1260 wc, desc->c_cpos, pos, local_len); in ocfs2_write_cluster_by_desc()
1281 struct ocfs2_write_ctxt *wc, in ocfs2_set_target_boundaries() argument
1286 wc->w_target_from = pos & (PAGE_SIZE - 1); in ocfs2_set_target_boundaries()
1287 wc->w_target_to = wc->w_target_from + len; in ocfs2_set_target_boundaries()
1301 if (wc->w_large_pages) { in ocfs2_set_target_boundaries()
1308 desc = &wc->w_desc[0]; in ocfs2_set_target_boundaries()
1312 &wc->w_target_from, in ocfs2_set_target_boundaries()
1315 desc = &wc->w_desc[wc->w_clen - 1]; in ocfs2_set_target_boundaries()
1320 &wc->w_target_to); in ocfs2_set_target_boundaries()
1322 wc->w_target_from = 0; in ocfs2_set_target_boundaries()
1323 wc->w_target_to = PAGE_SIZE; in ocfs2_set_target_boundaries()
1335 struct ocfs2_write_ctxt *wc, in ocfs2_unwritten_check() argument
1359 if (wc->w_type != OCFS2_WRITE_DIRECT) in ocfs2_unwritten_check()
1377 list_add_tail(&new->ue_node, &wc->w_unwritten_list); in ocfs2_unwritten_check()
1378 wc->w_unwritten_count++; in ocfs2_unwritten_check()
1396 struct ocfs2_write_ctxt *wc, in ocfs2_populate_write_desc() argument
1410 for (i = 0; i < wc->w_clen; i++) { in ocfs2_populate_write_desc()
1411 desc = &wc->w_desc[i]; in ocfs2_populate_write_desc()
1412 desc->c_cpos = wc->w_cpos + i; in ocfs2_populate_write_desc()
1453 if (desc->c_cpos >= wc->w_first_new_cpos) { in ocfs2_populate_write_desc()
1471 ret = ocfs2_unwritten_check(inode, wc, desc); in ocfs2_populate_write_desc()
1487 struct ocfs2_write_ctxt *wc) in ocfs2_write_begin_inline() argument
1493 struct ocfs2_dinode *di = (struct ocfs2_dinode *)wc->w_di_bh->b_data; in ocfs2_write_begin_inline()
1513 wc->w_pages[0] = wc->w_target_page = page; in ocfs2_write_begin_inline()
1514 wc->w_num_pages = 1; in ocfs2_write_begin_inline()
1516 ret = ocfs2_journal_access_di(handle, INODE_CACHE(inode), wc->w_di_bh, in ocfs2_write_begin_inline()
1529 ret = ocfs2_read_inline_data(inode, page, wc->w_di_bh); in ocfs2_write_begin_inline()
1537 wc->w_handle = handle; in ocfs2_write_begin_inline()
1554 struct ocfs2_write_ctxt *wc) in ocfs2_try_to_write_inline_data() argument
1570 ocfs2_size_fits_inline_data(wc->w_di_bh, end)) in ocfs2_try_to_write_inline_data()
1577 ret = ocfs2_convert_inline_data_to_extents(inode, wc->w_di_bh); in ocfs2_try_to_write_inline_data()
1592 di = (struct ocfs2_dinode *)wc->w_di_bh->b_data; in ocfs2_try_to_write_inline_data()
1598 ret = ocfs2_write_begin_inline(mapping, inode, wc); in ocfs2_try_to_write_inline_data()
1625 struct ocfs2_write_ctxt *wc) in ocfs2_expand_nonsparse_inode() argument
1640 if (wc) in ocfs2_expand_nonsparse_inode()
1641 wc->w_first_new_cpos = in ocfs2_expand_nonsparse_inode()
1666 struct ocfs2_write_ctxt *wc; in ocfs2_write_begin_nolock() local
1677 ret = ocfs2_alloc_write_ctxt(&wc, osb, pos, len, type, di_bh); in ocfs2_write_begin_nolock()
1685 mmap_page, wc); in ocfs2_write_begin_nolock()
1702 len, wc); in ocfs2_write_begin_nolock()
1714 clusters_need = wc->w_clen; in ocfs2_write_begin_nolock()
1716 wc->w_cpos, wc->w_clen, UINT_MAX); in ocfs2_write_begin_nolock()
1723 ret = ocfs2_populate_write_desc(inode, wc, &clusters_to_alloc, in ocfs2_write_begin_nolock()
1731 di = (struct ocfs2_dinode *)wc->w_di_bh->b_data; in ocfs2_write_begin_nolock()
1753 wc->w_di_bh); in ocfs2_write_begin_nolock()
1776 if (wc->w_clen && (wc->w_desc[0].c_needs_zero || in ocfs2_write_begin_nolock()
1777 wc->w_desc[wc->w_clen - 1].c_needs_zero)) in ocfs2_write_begin_nolock()
1782 ocfs2_set_target_boundaries(osb, wc, pos, len, cluster_of_pages); in ocfs2_write_begin_nolock()
1791 wc->w_handle = handle; in ocfs2_write_begin_nolock()
1800 ret = ocfs2_journal_access_di(handle, INODE_CACHE(inode), wc->w_di_bh, in ocfs2_write_begin_nolock()
1812 ret = ocfs2_grab_pages_for_write(mapping, wc, wc->w_cpos, pos, len, in ocfs2_write_begin_nolock()
1826 BUG_ON(wc->w_target_page); in ocfs2_write_begin_nolock()
1831 ret = ocfs2_write_cluster_by_desc(mapping, data_ac, meta_ac, wc, pos, in ocfs2_write_begin_nolock()
1845 *pagep = wc->w_target_page; in ocfs2_write_begin_nolock()
1846 *fsdata = wc; in ocfs2_write_begin_nolock()
1863 if (wc->w_target_locked) in ocfs2_write_begin_nolock()
1866 ocfs2_free_write_ctxt(inode, wc); in ocfs2_write_begin_nolock()
1941 struct ocfs2_write_ctxt *wc) in ocfs2_write_end_inline() argument
1946 if (!PageUptodate(wc->w_target_page)) { in ocfs2_write_end_inline()
1952 kaddr = kmap_atomic(wc->w_target_page); in ocfs2_write_end_inline()
1970 struct ocfs2_write_ctxt *wc = fsdata; in ocfs2_write_end_nolock() local
1971 struct ocfs2_dinode *di = (struct ocfs2_dinode *)wc->w_di_bh->b_data; in ocfs2_write_end_nolock()
1972 handle_t *handle = wc->w_handle; in ocfs2_write_end_nolock()
1975 BUG_ON(!list_empty(&wc->w_unwritten_list)); in ocfs2_write_end_nolock()
1979 wc->w_di_bh, OCFS2_JOURNAL_ACCESS_WRITE); in ocfs2_write_end_nolock()
1988 ocfs2_write_end_inline(inode, pos, len, &copied, di, wc); in ocfs2_write_end_nolock()
1992 if (unlikely(copied < len) && wc->w_target_page) { in ocfs2_write_end_nolock()
1993 if (!PageUptodate(wc->w_target_page)) in ocfs2_write_end_nolock()
1996 ocfs2_zero_new_buffers(wc->w_target_page, start+copied, in ocfs2_write_end_nolock()
1999 if (wc->w_target_page) in ocfs2_write_end_nolock()
2000 flush_dcache_page(wc->w_target_page); in ocfs2_write_end_nolock()
2002 for(i = 0; i < wc->w_num_pages; i++) { in ocfs2_write_end_nolock()
2003 tmppage = wc->w_pages[i]; in ocfs2_write_end_nolock()
2009 if (tmppage == wc->w_target_page) { in ocfs2_write_end_nolock()
2010 from = wc->w_target_from; in ocfs2_write_end_nolock()
2011 to = wc->w_target_to; in ocfs2_write_end_nolock()
2041 if (wc->w_type != OCFS2_WRITE_DIRECT) { in ocfs2_write_end_nolock()
2056 ocfs2_journal_dirty(handle, wc->w_di_bh); in ocfs2_write_end_nolock()
2064 ocfs2_unlock_pages(wc); in ocfs2_write_end_nolock()
2069 ocfs2_run_deallocs(osb, &wc->w_dealloc); in ocfs2_write_end_nolock()
2071 brelse(wc->w_di_bh); in ocfs2_write_end_nolock()
2072 kfree(wc); in ocfs2_write_end_nolock()
2145 struct ocfs2_write_ctxt *wc; in ocfs2_dio_wr_get_block() local
2240 (void **)&wc, di_bh, NULL); in ocfs2_dio_wr_get_block()
2246 desc = &wc->w_desc[0]; in ocfs2_dio_wr_get_block()
2264 if (!list_empty(&wc->w_unwritten_list)) { in ocfs2_dio_wr_get_block()
2267 ue = list_first_entry(&wc->w_unwritten_list, in ocfs2_dio_wr_get_block()
2274 list_splice_tail_init(&wc->w_unwritten_list, &dwc->dw_zero_list); in ocfs2_dio_wr_get_block()
2275 dwc->dw_zero_count += wc->w_unwritten_count; in ocfs2_dio_wr_get_block()
2278 ret = ocfs2_write_end_nolock(inode->i_mapping, pos, len, len, wc); in ocfs2_dio_wr_get_block()