Lines Matching refs:wc
816 static void ocfs2_unlock_pages(struct ocfs2_write_ctxt *wc) in ocfs2_unlock_pages() argument
825 if (wc->w_target_locked) { in ocfs2_unlock_pages()
826 BUG_ON(!wc->w_target_page); in ocfs2_unlock_pages()
827 for (i = 0; i < wc->w_num_pages; i++) { in ocfs2_unlock_pages()
828 if (wc->w_target_page == wc->w_pages[i]) { in ocfs2_unlock_pages()
829 wc->w_pages[i] = NULL; in ocfs2_unlock_pages()
833 mark_page_accessed(wc->w_target_page); in ocfs2_unlock_pages()
834 put_page(wc->w_target_page); in ocfs2_unlock_pages()
836 ocfs2_unlock_and_free_pages(wc->w_pages, wc->w_num_pages); in ocfs2_unlock_pages()
855 struct ocfs2_write_ctxt *wc) in ocfs2_free_write_ctxt() argument
857 ocfs2_free_unwritten_list(inode, &wc->w_unwritten_list); in ocfs2_free_write_ctxt()
858 ocfs2_unlock_pages(wc); in ocfs2_free_write_ctxt()
859 brelse(wc->w_di_bh); in ocfs2_free_write_ctxt()
860 kfree(wc); in ocfs2_free_write_ctxt()
869 struct ocfs2_write_ctxt *wc; in ocfs2_alloc_write_ctxt() local
871 wc = kzalloc(sizeof(struct ocfs2_write_ctxt), GFP_NOFS); in ocfs2_alloc_write_ctxt()
872 if (!wc) in ocfs2_alloc_write_ctxt()
875 wc->w_cpos = pos >> osb->s_clustersize_bits; in ocfs2_alloc_write_ctxt()
876 wc->w_first_new_cpos = UINT_MAX; in ocfs2_alloc_write_ctxt()
878 wc->w_clen = cend - wc->w_cpos + 1; in ocfs2_alloc_write_ctxt()
880 wc->w_di_bh = di_bh; in ocfs2_alloc_write_ctxt()
881 wc->w_type = type; in ocfs2_alloc_write_ctxt()
884 wc->w_large_pages = 1; in ocfs2_alloc_write_ctxt()
886 wc->w_large_pages = 0; in ocfs2_alloc_write_ctxt()
888 ocfs2_init_dealloc_ctxt(&wc->w_dealloc); in ocfs2_alloc_write_ctxt()
889 INIT_LIST_HEAD(&wc->w_unwritten_list); in ocfs2_alloc_write_ctxt()
891 *wcp = wc; in ocfs2_alloc_write_ctxt()
942 struct ocfs2_write_ctxt *wc, in ocfs2_write_failure() argument
950 if (wc->w_target_page) in ocfs2_write_failure()
951 ocfs2_zero_new_buffers(wc->w_target_page, from, to); in ocfs2_write_failure()
953 for(i = 0; i < wc->w_num_pages; i++) { in ocfs2_write_failure()
954 tmppage = wc->w_pages[i]; in ocfs2_write_failure()
958 ocfs2_jbd2_file_inode(wc->w_handle, inode); in ocfs2_write_failure()
966 struct ocfs2_write_ctxt *wc, in ocfs2_prepare_page_for_write() argument
985 if (page == wc->w_target_page) { in ocfs2_prepare_page_for_write()
1050 struct ocfs2_write_ctxt *wc, in ocfs2_grab_pages_for_write() argument
1070 wc->w_num_pages = ocfs2_pages_per_cluster(inode->i_sb); in ocfs2_grab_pages_for_write()
1080 if ((start + wc->w_num_pages) > end_index) in ocfs2_grab_pages_for_write()
1081 wc->w_num_pages = end_index - start; in ocfs2_grab_pages_for_write()
1083 wc->w_num_pages = 1; in ocfs2_grab_pages_for_write()
1088 for(i = 0; i < wc->w_num_pages; i++) { in ocfs2_grab_pages_for_write()
1092 wc->w_type == OCFS2_WRITE_MMAP) { in ocfs2_grab_pages_for_write()
1109 wc->w_pages[i] = mmap_page; in ocfs2_grab_pages_for_write()
1110 wc->w_target_locked = true; in ocfs2_grab_pages_for_write()
1112 wc->w_type == OCFS2_WRITE_DIRECT) { in ocfs2_grab_pages_for_write()
1114 wc->w_pages[i] = NULL; in ocfs2_grab_pages_for_write()
1117 wc->w_pages[i] = find_or_create_page(mapping, index, in ocfs2_grab_pages_for_write()
1119 if (!wc->w_pages[i]) { in ocfs2_grab_pages_for_write()
1125 wait_for_stable_page(wc->w_pages[i]); in ocfs2_grab_pages_for_write()
1128 wc->w_target_page = wc->w_pages[i]; in ocfs2_grab_pages_for_write()
1132 wc->w_target_locked = false; in ocfs2_grab_pages_for_write()
1145 struct ocfs2_write_ctxt *wc, u32 cpos, in ocfs2_write_cluster() argument
1164 wc->w_di_bh, wc->w_handle, in ocfs2_write_cluster()
1184 wc->w_di_bh); in ocfs2_write_cluster()
1186 wc->w_handle, cpos, 1, *phys, in ocfs2_write_cluster()
1187 meta_ac, &wc->w_dealloc); in ocfs2_write_cluster()
1212 for(i = 0; i < wc->w_num_pages; i++) { in ocfs2_write_cluster()
1216 if (wc->w_pages[i] == NULL) { in ocfs2_write_cluster()
1221 tmpret = ocfs2_prepare_page_for_write(inode, &p_blkno, wc, in ocfs2_write_cluster()
1222 wc->w_pages[i], cpos, in ocfs2_write_cluster()
1236 ocfs2_write_failure(inode, wc, user_pos, user_len); in ocfs2_write_cluster()
1246 struct ocfs2_write_ctxt *wc, in ocfs2_write_cluster_by_desc() argument
1255 for (i = 0; i < wc->w_clen; i++) { in ocfs2_write_cluster_by_desc()
1256 desc = &wc->w_desc[i]; in ocfs2_write_cluster_by_desc()
1272 wc, desc->c_cpos, pos, local_len); in ocfs2_write_cluster_by_desc()
1293 struct ocfs2_write_ctxt *wc, in ocfs2_set_target_boundaries() argument
1298 wc->w_target_from = pos & (PAGE_SIZE - 1); in ocfs2_set_target_boundaries()
1299 wc->w_target_to = wc->w_target_from + len; in ocfs2_set_target_boundaries()
1313 if (wc->w_large_pages) { in ocfs2_set_target_boundaries()
1320 desc = &wc->w_desc[0]; in ocfs2_set_target_boundaries()
1324 &wc->w_target_from, in ocfs2_set_target_boundaries()
1327 desc = &wc->w_desc[wc->w_clen - 1]; in ocfs2_set_target_boundaries()
1332 &wc->w_target_to); in ocfs2_set_target_boundaries()
1334 wc->w_target_from = 0; in ocfs2_set_target_boundaries()
1335 wc->w_target_to = PAGE_SIZE; in ocfs2_set_target_boundaries()
1347 struct ocfs2_write_ctxt *wc, in ocfs2_unwritten_check() argument
1371 if (wc->w_type != OCFS2_WRITE_DIRECT) in ocfs2_unwritten_check()
1389 list_add_tail(&new->ue_node, &wc->w_unwritten_list); in ocfs2_unwritten_check()
1390 wc->w_unwritten_count++; in ocfs2_unwritten_check()
1409 struct ocfs2_write_ctxt *wc, in ocfs2_populate_write_desc() argument
1423 for (i = 0; i < wc->w_clen; i++) { in ocfs2_populate_write_desc()
1424 desc = &wc->w_desc[i]; in ocfs2_populate_write_desc()
1425 desc->c_cpos = wc->w_cpos + i; in ocfs2_populate_write_desc()
1466 if (desc->c_cpos >= wc->w_first_new_cpos) { in ocfs2_populate_write_desc()
1484 ret = ocfs2_unwritten_check(inode, wc, desc); in ocfs2_populate_write_desc()
1500 struct ocfs2_write_ctxt *wc) in ocfs2_write_begin_inline() argument
1506 struct ocfs2_dinode *di = (struct ocfs2_dinode *)wc->w_di_bh->b_data; in ocfs2_write_begin_inline()
1526 wc->w_pages[0] = wc->w_target_page = page; in ocfs2_write_begin_inline()
1527 wc->w_num_pages = 1; in ocfs2_write_begin_inline()
1529 ret = ocfs2_journal_access_di(handle, INODE_CACHE(inode), wc->w_di_bh, in ocfs2_write_begin_inline()
1542 ret = ocfs2_read_inline_data(inode, page, wc->w_di_bh); in ocfs2_write_begin_inline()
1550 wc->w_handle = handle; in ocfs2_write_begin_inline()
1567 struct ocfs2_write_ctxt *wc) in ocfs2_try_to_write_inline_data() argument
1583 ocfs2_size_fits_inline_data(wc->w_di_bh, end)) in ocfs2_try_to_write_inline_data()
1590 ret = ocfs2_convert_inline_data_to_extents(inode, wc->w_di_bh); in ocfs2_try_to_write_inline_data()
1605 di = (struct ocfs2_dinode *)wc->w_di_bh->b_data; in ocfs2_try_to_write_inline_data()
1611 ret = ocfs2_write_begin_inline(mapping, inode, wc); in ocfs2_try_to_write_inline_data()
1638 struct ocfs2_write_ctxt *wc) in ocfs2_expand_nonsparse_inode() argument
1653 if (wc) in ocfs2_expand_nonsparse_inode()
1654 wc->w_first_new_cpos = in ocfs2_expand_nonsparse_inode()
1679 struct ocfs2_write_ctxt *wc; in ocfs2_write_begin_nolock() local
1690 ret = ocfs2_alloc_write_ctxt(&wc, osb, pos, len, type, di_bh); in ocfs2_write_begin_nolock()
1698 mmap_page, wc); in ocfs2_write_begin_nolock()
1715 len, wc); in ocfs2_write_begin_nolock()
1727 clusters_need = wc->w_clen; in ocfs2_write_begin_nolock()
1729 wc->w_cpos, wc->w_clen, UINT_MAX); in ocfs2_write_begin_nolock()
1736 ret = ocfs2_populate_write_desc(inode, wc, &clusters_to_alloc, in ocfs2_write_begin_nolock()
1744 di = (struct ocfs2_dinode *)wc->w_di_bh->b_data; in ocfs2_write_begin_nolock()
1766 wc->w_di_bh); in ocfs2_write_begin_nolock()
1789 if (wc->w_clen && (wc->w_desc[0].c_needs_zero || in ocfs2_write_begin_nolock()
1790 wc->w_desc[wc->w_clen - 1].c_needs_zero)) in ocfs2_write_begin_nolock()
1795 ocfs2_set_target_boundaries(osb, wc, pos, len, cluster_of_pages); in ocfs2_write_begin_nolock()
1804 wc->w_handle = handle; in ocfs2_write_begin_nolock()
1813 ret = ocfs2_journal_access_di(handle, INODE_CACHE(inode), wc->w_di_bh, in ocfs2_write_begin_nolock()
1825 ret = ocfs2_grab_pages_for_write(mapping, wc, wc->w_cpos, pos, len, in ocfs2_write_begin_nolock()
1839 BUG_ON(wc->w_target_page); in ocfs2_write_begin_nolock()
1844 ret = ocfs2_write_cluster_by_desc(mapping, data_ac, meta_ac, wc, pos, in ocfs2_write_begin_nolock()
1858 *pagep = wc->w_target_page; in ocfs2_write_begin_nolock()
1859 *fsdata = wc; in ocfs2_write_begin_nolock()
1876 if (wc->w_target_locked) in ocfs2_write_begin_nolock()
1879 ocfs2_free_write_ctxt(inode, wc); in ocfs2_write_begin_nolock()
1954 struct ocfs2_write_ctxt *wc) in ocfs2_write_end_inline() argument
1959 if (!PageUptodate(wc->w_target_page)) { in ocfs2_write_end_inline()
1965 kaddr = kmap_atomic(wc->w_target_page); in ocfs2_write_end_inline()
1983 struct ocfs2_write_ctxt *wc = fsdata; in ocfs2_write_end_nolock() local
1984 struct ocfs2_dinode *di = (struct ocfs2_dinode *)wc->w_di_bh->b_data; in ocfs2_write_end_nolock()
1985 handle_t *handle = wc->w_handle; in ocfs2_write_end_nolock()
1988 BUG_ON(!list_empty(&wc->w_unwritten_list)); in ocfs2_write_end_nolock()
1992 wc->w_di_bh, OCFS2_JOURNAL_ACCESS_WRITE); in ocfs2_write_end_nolock()
2001 ocfs2_write_end_inline(inode, pos, len, &copied, di, wc); in ocfs2_write_end_nolock()
2005 if (unlikely(copied < len) && wc->w_target_page) { in ocfs2_write_end_nolock()
2006 if (!PageUptodate(wc->w_target_page)) in ocfs2_write_end_nolock()
2009 ocfs2_zero_new_buffers(wc->w_target_page, start+copied, in ocfs2_write_end_nolock()
2012 if (wc->w_target_page) in ocfs2_write_end_nolock()
2013 flush_dcache_page(wc->w_target_page); in ocfs2_write_end_nolock()
2015 for(i = 0; i < wc->w_num_pages; i++) { in ocfs2_write_end_nolock()
2016 tmppage = wc->w_pages[i]; in ocfs2_write_end_nolock()
2022 if (tmppage == wc->w_target_page) { in ocfs2_write_end_nolock()
2023 from = wc->w_target_from; in ocfs2_write_end_nolock()
2024 to = wc->w_target_to; in ocfs2_write_end_nolock()
2048 if (wc->w_type != OCFS2_WRITE_DIRECT) { in ocfs2_write_end_nolock()
2062 ocfs2_journal_dirty(handle, wc->w_di_bh); in ocfs2_write_end_nolock()
2070 ocfs2_unlock_pages(wc); in ocfs2_write_end_nolock()
2075 ocfs2_run_deallocs(osb, &wc->w_dealloc); in ocfs2_write_end_nolock()
2077 brelse(wc->w_di_bh); in ocfs2_write_end_nolock()
2078 kfree(wc); in ocfs2_write_end_nolock()
2151 struct ocfs2_write_ctxt *wc; in ocfs2_dio_wr_get_block() local
2229 (void **)&wc, di_bh, NULL); in ocfs2_dio_wr_get_block()
2235 desc = &wc->w_desc[0]; in ocfs2_dio_wr_get_block()
2250 if (!list_empty(&wc->w_unwritten_list)) { in ocfs2_dio_wr_get_block()
2253 ue = list_first_entry(&wc->w_unwritten_list, in ocfs2_dio_wr_get_block()
2260 list_splice_tail_init(&wc->w_unwritten_list, &dwc->dw_zero_list); in ocfs2_dio_wr_get_block()
2261 dwc->dw_zero_count += wc->w_unwritten_count; in ocfs2_dio_wr_get_block()
2264 ret = ocfs2_write_end_nolock(inode->i_mapping, pos, len, len, wc); in ocfs2_dio_wr_get_block()