Lines Matching full:sci
90 static inline void nilfs_sc_cstage_inc(struct nilfs_sc_info *sci) in nilfs_sc_cstage_inc() argument
92 sci->sc_stage.scnt++; in nilfs_sc_cstage_inc()
93 trace_nilfs2_collection_stage_transition(sci); in nilfs_sc_cstage_inc()
96 static inline void nilfs_sc_cstage_set(struct nilfs_sc_info *sci, int next_scnt) in nilfs_sc_cstage_set() argument
98 sci->sc_stage.scnt = next_scnt; in nilfs_sc_cstage_set()
99 trace_nilfs2_collection_stage_transition(sci); in nilfs_sc_cstage_set()
102 static inline int nilfs_sc_cstage_get(struct nilfs_sc_info *sci) in nilfs_sc_cstage_get() argument
104 return sci->sc_stage.scnt; in nilfs_sc_cstage_get()
276 struct nilfs_sc_info *sci = nilfs->ns_writer; in nilfs_transaction_commit() local
279 nilfs_segctor_start_timer(sci); in nilfs_transaction_commit()
280 if (atomic_read(&nilfs->ns_ndirtyblks) > sci->sc_watermark) in nilfs_transaction_commit()
281 nilfs_segctor_do_flush(sci, 0); in nilfs_transaction_commit()
323 struct nilfs_sc_info *sci = nilfs->ns_writer; in nilfs_relax_pressure_in_lock() local
325 if (sb_rdonly(sb) || unlikely(!sci) || !sci->sc_flush_request) in nilfs_relax_pressure_in_lock()
328 set_bit(NILFS_SC_PRIOR_FLUSH, &sci->sc_flags); in nilfs_relax_pressure_in_lock()
332 if (sci->sc_flush_request && in nilfs_relax_pressure_in_lock()
333 test_bit(NILFS_SC_PRIOR_FLUSH, &sci->sc_flags)) { in nilfs_relax_pressure_in_lock()
337 nilfs_segctor_do_immediate_flush(sci); in nilfs_relax_pressure_in_lock()
349 struct nilfs_sc_info *sci = nilfs->ns_writer; in nilfs_transaction_lock() local
363 if (!test_bit(NILFS_SC_PRIOR_FLUSH, &sci->sc_flags)) in nilfs_transaction_lock()
366 nilfs_segctor_do_immediate_flush(sci); in nilfs_transaction_lock()
393 static void *nilfs_segctor_map_segsum_entry(struct nilfs_sc_info *sci, in nilfs_segctor_map_segsum_entry() argument
397 struct nilfs_segment_buffer *segbuf = sci->sc_curseg; in nilfs_segctor_map_segsum_entry()
398 unsigned int blocksize = sci->sc_super->s_blocksize; in nilfs_segctor_map_segsum_entry()
414 * @sci: nilfs_sc_info
416 static int nilfs_segctor_reset_segment_buffer(struct nilfs_sc_info *sci) in nilfs_segctor_reset_segment_buffer() argument
418 struct nilfs_segment_buffer *segbuf = sci->sc_curseg; in nilfs_segctor_reset_segment_buffer()
426 err = nilfs_segbuf_reset(segbuf, flags, sci->sc_seg_ctime, sci->sc_cno); in nilfs_segctor_reset_segment_buffer()
432 sci->sc_finfo_ptr.bh = sumbh; sci->sc_finfo_ptr.offset = sumbytes; in nilfs_segctor_reset_segment_buffer()
433 sci->sc_binfo_ptr.bh = sumbh; sci->sc_binfo_ptr.offset = sumbytes; in nilfs_segctor_reset_segment_buffer()
434 sci->sc_blk_cnt = sci->sc_datablk_cnt = 0; in nilfs_segctor_reset_segment_buffer()
440 * @sci: segment constructor object
445 static void nilfs_segctor_zeropad_segsum(struct nilfs_sc_info *sci) in nilfs_segctor_zeropad_segsum() argument
449 ssp = sci->sc_blk_cnt > 0 ? &sci->sc_binfo_ptr : &sci->sc_finfo_ptr; in nilfs_segctor_zeropad_segsum()
455 static int nilfs_segctor_feed_segment(struct nilfs_sc_info *sci) in nilfs_segctor_feed_segment() argument
457 sci->sc_nblk_this_inc += sci->sc_curseg->sb_sum.nblocks; in nilfs_segctor_feed_segment()
458 if (NILFS_SEGBUF_IS_LAST(sci->sc_curseg, &sci->sc_segbufs)) in nilfs_segctor_feed_segment()
463 nilfs_segctor_zeropad_segsum(sci); in nilfs_segctor_feed_segment()
464 sci->sc_curseg = NILFS_NEXT_SEGBUF(sci->sc_curseg); in nilfs_segctor_feed_segment()
465 return nilfs_segctor_reset_segment_buffer(sci); in nilfs_segctor_feed_segment()
468 static int nilfs_segctor_add_super_root(struct nilfs_sc_info *sci) in nilfs_segctor_add_super_root() argument
470 struct nilfs_segment_buffer *segbuf = sci->sc_curseg; in nilfs_segctor_add_super_root()
474 err = nilfs_segctor_feed_segment(sci); in nilfs_segctor_add_super_root()
477 segbuf = sci->sc_curseg; in nilfs_segctor_add_super_root()
489 struct nilfs_sc_info *sci, const struct nilfs_segsum_pointer *ssp, in nilfs_segctor_segsum_block_required() argument
492 unsigned int blocksize = sci->sc_super->s_blocksize; in nilfs_segctor_segsum_block_required()
496 (!sci->sc_blk_cnt ? sizeof(struct nilfs_finfo) : 0) > in nilfs_segctor_segsum_block_required()
500 static void nilfs_segctor_begin_finfo(struct nilfs_sc_info *sci, in nilfs_segctor_begin_finfo() argument
503 sci->sc_curseg->sb_sum.nfinfo++; in nilfs_segctor_begin_finfo()
504 sci->sc_binfo_ptr = sci->sc_finfo_ptr; in nilfs_segctor_begin_finfo()
506 sci, &sci->sc_binfo_ptr, sizeof(struct nilfs_finfo)); in nilfs_segctor_begin_finfo()
509 !test_bit(NILFS_SC_HAVE_DELTA, &sci->sc_flags)) in nilfs_segctor_begin_finfo()
510 set_bit(NILFS_SC_HAVE_DELTA, &sci->sc_flags); in nilfs_segctor_begin_finfo()
514 static void nilfs_segctor_end_finfo(struct nilfs_sc_info *sci, in nilfs_segctor_end_finfo() argument
522 if (sci->sc_blk_cnt == 0) in nilfs_segctor_end_finfo()
532 cno = sci->sc_cno; in nilfs_segctor_end_finfo()
534 finfo = nilfs_segctor_map_segsum_entry(sci, &sci->sc_finfo_ptr, in nilfs_segctor_end_finfo()
537 finfo->fi_nblocks = cpu_to_le32(sci->sc_blk_cnt); in nilfs_segctor_end_finfo()
538 finfo->fi_ndatablk = cpu_to_le32(sci->sc_datablk_cnt); in nilfs_segctor_end_finfo()
541 segbuf = sci->sc_curseg; in nilfs_segctor_end_finfo()
542 segbuf->sb_sum.sumbytes = sci->sc_binfo_ptr.offset + in nilfs_segctor_end_finfo()
543 sci->sc_super->s_blocksize * (segbuf->sb_sum.nsumblk - 1); in nilfs_segctor_end_finfo()
544 sci->sc_finfo_ptr = sci->sc_binfo_ptr; in nilfs_segctor_end_finfo()
545 sci->sc_blk_cnt = sci->sc_datablk_cnt = 0; in nilfs_segctor_end_finfo()
548 static int nilfs_segctor_add_file_block(struct nilfs_sc_info *sci, in nilfs_segctor_add_file_block() argument
557 segbuf = sci->sc_curseg; in nilfs_segctor_add_file_block()
559 sci, &sci->sc_binfo_ptr, binfo_size); in nilfs_segctor_add_file_block()
561 nilfs_segctor_end_finfo(sci, inode); in nilfs_segctor_add_file_block()
562 err = nilfs_segctor_feed_segment(sci); in nilfs_segctor_add_file_block()
568 nilfs_segctor_zeropad_segsum(sci); in nilfs_segctor_add_file_block()
573 if (sci->sc_blk_cnt == 0) in nilfs_segctor_add_file_block()
574 nilfs_segctor_begin_finfo(sci, inode); in nilfs_segctor_add_file_block()
576 nilfs_segctor_map_segsum_entry(sci, &sci->sc_binfo_ptr, binfo_size); in nilfs_segctor_add_file_block()
579 sci->sc_blk_cnt++; in nilfs_segctor_add_file_block()
587 static int nilfs_collect_file_data(struct nilfs_sc_info *sci, in nilfs_collect_file_data() argument
596 err = nilfs_segctor_add_file_block(sci, bh, inode, in nilfs_collect_file_data()
599 sci->sc_datablk_cnt++; in nilfs_collect_file_data()
603 static int nilfs_collect_file_node(struct nilfs_sc_info *sci, in nilfs_collect_file_node() argument
610 static int nilfs_collect_file_bmap(struct nilfs_sc_info *sci, in nilfs_collect_file_bmap() argument
615 return nilfs_segctor_add_file_block(sci, bh, inode, sizeof(__le64)); in nilfs_collect_file_bmap()
618 static void nilfs_write_file_data_binfo(struct nilfs_sc_info *sci, in nilfs_write_file_data_binfo() argument
623 sci, ssp, sizeof(*binfo_v)); in nilfs_write_file_data_binfo()
627 static void nilfs_write_file_node_binfo(struct nilfs_sc_info *sci, in nilfs_write_file_node_binfo() argument
632 sci, ssp, sizeof(*vblocknr)); in nilfs_write_file_node_binfo()
644 static int nilfs_collect_dat_data(struct nilfs_sc_info *sci, in nilfs_collect_dat_data() argument
653 err = nilfs_segctor_add_file_block(sci, bh, inode, sizeof(__le64)); in nilfs_collect_dat_data()
655 sci->sc_datablk_cnt++; in nilfs_collect_dat_data()
659 static int nilfs_collect_dat_bmap(struct nilfs_sc_info *sci, in nilfs_collect_dat_bmap() argument
663 return nilfs_segctor_add_file_block(sci, bh, inode, in nilfs_collect_dat_bmap()
667 static void nilfs_write_dat_data_binfo(struct nilfs_sc_info *sci, in nilfs_write_dat_data_binfo() argument
671 __le64 *blkoff = nilfs_segctor_map_segsum_entry(sci, ssp, in nilfs_write_dat_data_binfo()
676 static void nilfs_write_dat_node_binfo(struct nilfs_sc_info *sci, in nilfs_write_dat_node_binfo() argument
681 nilfs_segctor_map_segsum_entry(sci, ssp, sizeof(*binfo_dat)); in nilfs_write_dat_node_binfo()
825 struct nilfs_sc_info *sci = container_of(work, struct nilfs_sc_info, in nilfs_iput_work_func() local
827 struct the_nilfs *nilfs = sci->sc_super->s_fs_info; in nilfs_iput_work_func()
829 nilfs_dispose_list(nilfs, &sci->sc_iput_queue, 0); in nilfs_iput_work_func()
848 static int nilfs_segctor_clean(struct nilfs_sc_info *sci) in nilfs_segctor_clean() argument
850 return list_empty(&sci->sc_dirty_files) && in nilfs_segctor_clean()
851 !test_bit(NILFS_SC_DIRTY, &sci->sc_flags) && in nilfs_segctor_clean()
852 sci->sc_nfreesegs == 0 && in nilfs_segctor_clean()
853 (!nilfs_doing_gc() || list_empty(&sci->sc_gc_inodes)); in nilfs_segctor_clean()
856 static int nilfs_segctor_confirm(struct nilfs_sc_info *sci) in nilfs_segctor_confirm() argument
858 struct the_nilfs *nilfs = sci->sc_super->s_fs_info; in nilfs_segctor_confirm()
861 if (nilfs_test_metadata_dirty(nilfs, sci->sc_root)) in nilfs_segctor_confirm()
862 set_bit(NILFS_SC_DIRTY, &sci->sc_flags); in nilfs_segctor_confirm()
865 if (list_empty(&nilfs->ns_dirty_files) && nilfs_segctor_clean(sci)) in nilfs_segctor_confirm()
872 static void nilfs_segctor_clear_metadata_dirty(struct nilfs_sc_info *sci) in nilfs_segctor_clear_metadata_dirty() argument
874 struct the_nilfs *nilfs = sci->sc_super->s_fs_info; in nilfs_segctor_clear_metadata_dirty()
876 nilfs_mdt_clear_dirty(sci->sc_root->ifile); in nilfs_segctor_clear_metadata_dirty()
882 static int nilfs_segctor_create_checkpoint(struct nilfs_sc_info *sci) in nilfs_segctor_create_checkpoint() argument
884 struct the_nilfs *nilfs = sci->sc_super->s_fs_info; in nilfs_segctor_create_checkpoint()
903 nilfs_error(sci->sc_super, in nilfs_segctor_create_checkpoint()
910 static int nilfs_segctor_fill_in_checkpoint(struct nilfs_sc_info *sci) in nilfs_segctor_fill_in_checkpoint() argument
912 struct the_nilfs *nilfs = sci->sc_super->s_fs_info; in nilfs_segctor_fill_in_checkpoint()
921 nilfs_error(sci->sc_super, in nilfs_segctor_fill_in_checkpoint()
930 cpu_to_le64(atomic64_read(&sci->sc_root->inodes_count)); in nilfs_segctor_fill_in_checkpoint()
932 cpu_to_le64(atomic64_read(&sci->sc_root->blocks_count)); in nilfs_segctor_fill_in_checkpoint()
934 cpu_to_le64(sci->sc_nblk_inc + sci->sc_nblk_this_inc); in nilfs_segctor_fill_in_checkpoint()
935 raw_cp->cp_create = cpu_to_le64(sci->sc_seg_ctime); in nilfs_segctor_fill_in_checkpoint()
938 if (test_bit(NILFS_SC_HAVE_DELTA, &sci->sc_flags)) in nilfs_segctor_fill_in_checkpoint()
943 nilfs_write_inode_common(sci->sc_root->ifile, in nilfs_segctor_fill_in_checkpoint()
969 static void nilfs_segctor_fill_in_file_bmap(struct nilfs_sc_info *sci) in nilfs_segctor_fill_in_file_bmap() argument
973 list_for_each_entry(ii, &sci->sc_dirty_files, i_dirty) { in nilfs_segctor_fill_in_file_bmap()
974 nilfs_fill_in_file_bmap(sci->sc_root->ifile, ii); in nilfs_segctor_fill_in_file_bmap()
979 static void nilfs_segctor_fill_in_super_root(struct nilfs_sc_info *sci, in nilfs_segctor_fill_in_super_root() argument
986 bh_sr = NILFS_LAST_SEGBUF(&sci->sc_segbufs)->sb_super_root; in nilfs_segctor_fill_in_super_root()
994 nilfs->ns_nongc_ctime : sci->sc_seg_ctime); in nilfs_segctor_fill_in_super_root()
1029 static int nilfs_segctor_apply_buffers(struct nilfs_sc_info *sci, in nilfs_segctor_apply_buffers() argument
1042 err = collect(sci, bh, inode); in nilfs_segctor_apply_buffers()
1060 static size_t nilfs_segctor_buffer_rest(struct nilfs_sc_info *sci) in nilfs_segctor_buffer_rest() argument
1063 return sci->sc_segbuf_nblocks - in nilfs_segctor_buffer_rest()
1064 (sci->sc_nblk_this_inc + sci->sc_curseg->sb_sum.nblocks); in nilfs_segctor_buffer_rest()
1067 static int nilfs_segctor_scan_file(struct nilfs_sc_info *sci, in nilfs_segctor_scan_file() argument
1075 if (!(sci->sc_stage.flags & NILFS_CF_NODE)) { in nilfs_segctor_scan_file()
1076 size_t n, rest = nilfs_segctor_buffer_rest(sci); in nilfs_segctor_scan_file()
1082 sci, inode, &data_buffers, in nilfs_segctor_scan_file()
1090 if (!(sci->sc_stage.flags & NILFS_CF_NODE)) { in nilfs_segctor_scan_file()
1092 sci, inode, &data_buffers, sc_ops->collect_data); in nilfs_segctor_scan_file()
1096 sci, inode, &node_buffers, NULL); in nilfs_segctor_scan_file()
1099 sci->sc_stage.flags |= NILFS_CF_NODE; in nilfs_segctor_scan_file()
1103 sci, inode, &node_buffers, sc_ops->collect_node); in nilfs_segctor_scan_file()
1109 sci, inode, &node_buffers, sc_ops->collect_bmap); in nilfs_segctor_scan_file()
1113 nilfs_segctor_end_finfo(sci, inode); in nilfs_segctor_scan_file()
1114 sci->sc_stage.flags &= ~NILFS_CF_NODE; in nilfs_segctor_scan_file()
1120 static int nilfs_segctor_scan_file_dsync(struct nilfs_sc_info *sci, in nilfs_segctor_scan_file_dsync() argument
1124 size_t n, rest = nilfs_segctor_buffer_rest(sci); in nilfs_segctor_scan_file_dsync()
1128 sci->sc_dsync_start, in nilfs_segctor_scan_file_dsync()
1129 sci->sc_dsync_end); in nilfs_segctor_scan_file_dsync()
1131 err = nilfs_segctor_apply_buffers(sci, inode, &data_buffers, in nilfs_segctor_scan_file_dsync()
1134 nilfs_segctor_end_finfo(sci, inode); in nilfs_segctor_scan_file_dsync()
1141 static int nilfs_segctor_collect_blocks(struct nilfs_sc_info *sci, int mode) in nilfs_segctor_collect_blocks() argument
1143 struct the_nilfs *nilfs = sci->sc_super->s_fs_info; in nilfs_segctor_collect_blocks()
1149 switch (nilfs_sc_cstage_get(sci)) { in nilfs_segctor_collect_blocks()
1152 sci->sc_stage.flags = 0; in nilfs_segctor_collect_blocks()
1154 if (!test_bit(NILFS_SC_UNCLOSED, &sci->sc_flags)) { in nilfs_segctor_collect_blocks()
1155 sci->sc_nblk_inc = 0; in nilfs_segctor_collect_blocks()
1156 sci->sc_curseg->sb_sum.flags = NILFS_SS_LOGBGN; in nilfs_segctor_collect_blocks()
1158 nilfs_sc_cstage_set(sci, NILFS_ST_DSYNC); in nilfs_segctor_collect_blocks()
1163 sci->sc_stage.dirty_file_ptr = NULL; in nilfs_segctor_collect_blocks()
1164 sci->sc_stage.gc_inode_ptr = NULL; in nilfs_segctor_collect_blocks()
1166 nilfs_sc_cstage_set(sci, NILFS_ST_DAT); in nilfs_segctor_collect_blocks()
1169 nilfs_sc_cstage_inc(sci); in nilfs_segctor_collect_blocks()
1173 head = &sci->sc_gc_inodes; in nilfs_segctor_collect_blocks()
1174 ii = list_prepare_entry(sci->sc_stage.gc_inode_ptr, in nilfs_segctor_collect_blocks()
1178 sci, &ii->vfs_inode, in nilfs_segctor_collect_blocks()
1181 sci->sc_stage.gc_inode_ptr = list_entry( in nilfs_segctor_collect_blocks()
1189 sci->sc_stage.gc_inode_ptr = NULL; in nilfs_segctor_collect_blocks()
1191 nilfs_sc_cstage_inc(sci); in nilfs_segctor_collect_blocks()
1194 head = &sci->sc_dirty_files; in nilfs_segctor_collect_blocks()
1195 ii = list_prepare_entry(sci->sc_stage.dirty_file_ptr, head, in nilfs_segctor_collect_blocks()
1200 err = nilfs_segctor_scan_file(sci, &ii->vfs_inode, in nilfs_segctor_collect_blocks()
1203 sci->sc_stage.dirty_file_ptr = in nilfs_segctor_collect_blocks()
1209 /* sci->sc_stage.dirty_file_ptr = NILFS_I(inode); */ in nilfs_segctor_collect_blocks()
1212 sci->sc_stage.dirty_file_ptr = NULL; in nilfs_segctor_collect_blocks()
1214 nilfs_sc_cstage_set(sci, NILFS_ST_DONE); in nilfs_segctor_collect_blocks()
1217 nilfs_sc_cstage_inc(sci); in nilfs_segctor_collect_blocks()
1218 sci->sc_stage.flags |= NILFS_CF_IFILE_STARTED; in nilfs_segctor_collect_blocks()
1221 err = nilfs_segctor_scan_file(sci, sci->sc_root->ifile, in nilfs_segctor_collect_blocks()
1225 nilfs_sc_cstage_inc(sci); in nilfs_segctor_collect_blocks()
1227 err = nilfs_segctor_create_checkpoint(sci); in nilfs_segctor_collect_blocks()
1232 err = nilfs_segctor_scan_file(sci, nilfs->ns_cpfile, in nilfs_segctor_collect_blocks()
1236 nilfs_sc_cstage_inc(sci); in nilfs_segctor_collect_blocks()
1239 err = nilfs_sufile_freev(nilfs->ns_sufile, sci->sc_freesegs, in nilfs_segctor_collect_blocks()
1240 sci->sc_nfreesegs, &ndone); in nilfs_segctor_collect_blocks()
1243 sci->sc_freesegs, ndone, in nilfs_segctor_collect_blocks()
1247 sci->sc_stage.flags |= NILFS_CF_SUFREED; in nilfs_segctor_collect_blocks()
1249 err = nilfs_segctor_scan_file(sci, nilfs->ns_sufile, in nilfs_segctor_collect_blocks()
1253 nilfs_sc_cstage_inc(sci); in nilfs_segctor_collect_blocks()
1257 err = nilfs_segctor_scan_file(sci, nilfs->ns_dat, in nilfs_segctor_collect_blocks()
1262 nilfs_sc_cstage_set(sci, NILFS_ST_DONE); in nilfs_segctor_collect_blocks()
1265 nilfs_sc_cstage_inc(sci); in nilfs_segctor_collect_blocks()
1270 err = nilfs_segctor_add_super_root(sci); in nilfs_segctor_collect_blocks()
1275 sci->sc_curseg->sb_sum.flags |= NILFS_SS_LOGEND; in nilfs_segctor_collect_blocks()
1276 nilfs_sc_cstage_set(sci, NILFS_ST_DONE); in nilfs_segctor_collect_blocks()
1280 sci->sc_curseg->sb_sum.flags |= NILFS_SS_SYNDT; in nilfs_segctor_collect_blocks()
1281 ii = sci->sc_dsync_inode; in nilfs_segctor_collect_blocks()
1285 err = nilfs_segctor_scan_file_dsync(sci, &ii->vfs_inode); in nilfs_segctor_collect_blocks()
1288 sci->sc_curseg->sb_sum.flags |= NILFS_SS_LOGEND; in nilfs_segctor_collect_blocks()
1289 nilfs_sc_cstage_set(sci, NILFS_ST_DONE); in nilfs_segctor_collect_blocks()
1303 * @sci: nilfs_sc_info
1306 static int nilfs_segctor_begin_construction(struct nilfs_sc_info *sci, in nilfs_segctor_begin_construction() argument
1313 segbuf = nilfs_segbuf_new(sci->sc_super); in nilfs_segctor_begin_construction()
1317 if (list_empty(&sci->sc_write_logs)) { in nilfs_segctor_begin_construction()
1333 prev = NILFS_LAST_SEGBUF(&sci->sc_write_logs); in nilfs_segctor_begin_construction()
1356 BUG_ON(!list_empty(&sci->sc_segbufs)); in nilfs_segctor_begin_construction()
1357 list_add_tail(&segbuf->sb_list, &sci->sc_segbufs); in nilfs_segctor_begin_construction()
1358 sci->sc_segbuf_nblocks = segbuf->sb_rest_blocks; in nilfs_segctor_begin_construction()
1366 static int nilfs_segctor_extend_segments(struct nilfs_sc_info *sci, in nilfs_segctor_extend_segments() argument
1375 prev = NILFS_LAST_SEGBUF(&sci->sc_segbufs); in nilfs_segctor_extend_segments()
1389 segbuf = nilfs_segbuf_new(sci->sc_super); in nilfs_segctor_extend_segments()
1395 sci->sc_segbuf_nblocks += segbuf->sb_rest_blocks; in nilfs_segctor_extend_segments()
1408 list_splice_tail(&list, &sci->sc_segbufs); in nilfs_segctor_extend_segments()
1461 static void nilfs_segctor_update_segusage(struct nilfs_sc_info *sci, in nilfs_segctor_update_segusage() argument
1468 list_for_each_entry(segbuf, &sci->sc_segbufs, sb_list) { in nilfs_segctor_update_segusage()
1473 sci->sc_seg_ctime); in nilfs_segctor_update_segusage()
1496 static void nilfs_segctor_truncate_segments(struct nilfs_sc_info *sci, in nilfs_segctor_truncate_segments() argument
1503 list_for_each_entry_continue(segbuf, &sci->sc_segbufs, sb_list) { in nilfs_segctor_truncate_segments()
1504 sci->sc_segbuf_nblocks -= segbuf->sb_rest_blocks; in nilfs_segctor_truncate_segments()
1508 nilfs_truncate_logs(&sci->sc_segbufs, last); in nilfs_segctor_truncate_segments()
1512 static int nilfs_segctor_collect(struct nilfs_sc_info *sci, in nilfs_segctor_collect() argument
1515 struct nilfs_cstage prev_stage = sci->sc_stage; in nilfs_segctor_collect()
1520 sci->sc_nblk_this_inc = 0; in nilfs_segctor_collect()
1521 sci->sc_curseg = NILFS_FIRST_SEGBUF(&sci->sc_segbufs); in nilfs_segctor_collect()
1523 err = nilfs_segctor_reset_segment_buffer(sci); in nilfs_segctor_collect()
1527 err = nilfs_segctor_collect_blocks(sci, mode); in nilfs_segctor_collect()
1528 sci->sc_nblk_this_inc += sci->sc_curseg->sb_sum.nblocks; in nilfs_segctor_collect()
1537 nilfs_sc_cstage_get(sci) < NILFS_ST_CPFILE) in nilfs_segctor_collect()
1540 nilfs_clear_logs(&sci->sc_segbufs); in nilfs_segctor_collect()
1542 if (sci->sc_stage.flags & NILFS_CF_SUFREED) { in nilfs_segctor_collect()
1544 sci->sc_freesegs, in nilfs_segctor_collect()
1545 sci->sc_nfreesegs, in nilfs_segctor_collect()
1548 sci->sc_stage.flags &= ~NILFS_CF_SUFREED; in nilfs_segctor_collect()
1551 err = nilfs_segctor_extend_segments(sci, nilfs, nadd); in nilfs_segctor_collect()
1556 sci->sc_stage = prev_stage; in nilfs_segctor_collect()
1558 nilfs_segctor_zeropad_segsum(sci); in nilfs_segctor_collect()
1559 nilfs_segctor_truncate_segments(sci, sci->sc_curseg, nilfs->ns_sufile); in nilfs_segctor_collect()
1576 nilfs_segctor_update_payload_blocknr(struct nilfs_sc_info *sci, in nilfs_segctor_update_payload_blocknr() argument
1604 sci, &ssp, sizeof(*finfo)); in nilfs_segctor_update_payload_blocknr()
1629 sc_op->write_data_binfo(sci, &ssp, &binfo); in nilfs_segctor_update_payload_blocknr()
1631 sc_op->write_node_binfo(sci, &ssp, &binfo); in nilfs_segctor_update_payload_blocknr()
1648 static int nilfs_segctor_assign(struct nilfs_sc_info *sci, int mode) in nilfs_segctor_assign() argument
1653 list_for_each_entry(segbuf, &sci->sc_segbufs, sb_list) { in nilfs_segctor_assign()
1654 err = nilfs_segctor_update_payload_blocknr(sci, segbuf, mode); in nilfs_segctor_assign()
1677 static void nilfs_segctor_prepare_write(struct nilfs_sc_info *sci) in nilfs_segctor_prepare_write() argument
1682 list_for_each_entry(segbuf, &sci->sc_segbufs, sb_list) { in nilfs_segctor_prepare_write()
1726 static int nilfs_segctor_write(struct nilfs_sc_info *sci, in nilfs_segctor_write() argument
1731 ret = nilfs_write_logs(&sci->sc_segbufs, nilfs); in nilfs_segctor_write()
1732 list_splice_tail_init(&sci->sc_segbufs, &sci->sc_write_logs); in nilfs_segctor_write()
1815 static void nilfs_segctor_abort_construction(struct nilfs_sc_info *sci, in nilfs_segctor_abort_construction() argument
1821 list_splice_tail_init(&sci->sc_write_logs, &logs); in nilfs_segctor_abort_construction()
1825 list_splice_tail_init(&sci->sc_segbufs, &logs); in nilfs_segctor_abort_construction()
1829 if (sci->sc_stage.flags & NILFS_CF_SUFREED) { in nilfs_segctor_abort_construction()
1831 sci->sc_freesegs, in nilfs_segctor_abort_construction()
1832 sci->sc_nfreesegs, in nilfs_segctor_abort_construction()
1851 static void nilfs_segctor_complete_write(struct nilfs_sc_info *sci) in nilfs_segctor_complete_write() argument
1855 struct the_nilfs *nilfs = sci->sc_super->s_fs_info; in nilfs_segctor_complete_write()
1858 list_for_each_entry(segbuf, &sci->sc_write_logs, sb_list) { in nilfs_segctor_complete_write()
1907 set_bit(NILFS_SC_UNCLOSED, &sci->sc_flags); in nilfs_segctor_complete_write()
1908 sci->sc_lseg_stime = jiffies; in nilfs_segctor_complete_write()
1911 clear_bit(NILFS_SC_UNCLOSED, &sci->sc_flags); in nilfs_segctor_complete_write()
1923 nilfs_drop_collected_inodes(&sci->sc_dirty_files); in nilfs_segctor_complete_write()
1926 nilfs_drop_collected_inodes(&sci->sc_gc_inodes); in nilfs_segctor_complete_write()
1928 nilfs->ns_nongc_ctime = sci->sc_seg_ctime; in nilfs_segctor_complete_write()
1930 sci->sc_nblk_inc += sci->sc_nblk_this_inc; in nilfs_segctor_complete_write()
1932 segbuf = NILFS_LAST_SEGBUF(&sci->sc_write_logs); in nilfs_segctor_complete_write()
1940 clear_bit(NILFS_SC_HAVE_DELTA, &sci->sc_flags); in nilfs_segctor_complete_write()
1941 clear_bit(NILFS_SC_DIRTY, &sci->sc_flags); in nilfs_segctor_complete_write()
1942 set_bit(NILFS_SC_SUPER_ROOT, &sci->sc_flags); in nilfs_segctor_complete_write()
1943 nilfs_segctor_clear_metadata_dirty(sci); in nilfs_segctor_complete_write()
1945 clear_bit(NILFS_SC_SUPER_ROOT, &sci->sc_flags); in nilfs_segctor_complete_write()
1948 static int nilfs_segctor_wait(struct nilfs_sc_info *sci) in nilfs_segctor_wait() argument
1952 ret = nilfs_wait_on_logs(&sci->sc_write_logs); in nilfs_segctor_wait()
1954 nilfs_segctor_complete_write(sci); in nilfs_segctor_wait()
1955 nilfs_destroy_logs(&sci->sc_write_logs); in nilfs_segctor_wait()
1960 static int nilfs_segctor_collect_dirty_files(struct nilfs_sc_info *sci, in nilfs_segctor_collect_dirty_files() argument
1964 struct inode *ifile = sci->sc_root->ifile; in nilfs_segctor_collect_dirty_files()
1977 nilfs_warn(sci->sc_super, in nilfs_segctor_collect_dirty_files()
1996 list_move_tail(&ii->i_dirty, &sci->sc_dirty_files); in nilfs_segctor_collect_dirty_files()
2003 static void nilfs_segctor_drop_written_files(struct nilfs_sc_info *sci, in nilfs_segctor_drop_written_files() argument
2007 int during_mount = !(sci->sc_super->s_flags & SB_ACTIVE); in nilfs_segctor_drop_written_files()
2011 list_for_each_entry_safe(ii, n, &sci->sc_dirty_files, i_dirty) { in nilfs_segctor_drop_written_files()
2025 list_add_tail(&ii->i_dirty, &sci->sc_iput_queue); in nilfs_segctor_drop_written_files()
2036 schedule_work(&sci->sc_iput_work); in nilfs_segctor_drop_written_files()
2042 static int nilfs_segctor_do_construct(struct nilfs_sc_info *sci, int mode) in nilfs_segctor_do_construct() argument
2044 struct the_nilfs *nilfs = sci->sc_super->s_fs_info; in nilfs_segctor_do_construct()
2047 if (sb_rdonly(sci->sc_super)) in nilfs_segctor_do_construct()
2050 nilfs_sc_cstage_set(sci, NILFS_ST_INIT); in nilfs_segctor_do_construct()
2051 sci->sc_cno = nilfs->ns_cno; in nilfs_segctor_do_construct()
2053 err = nilfs_segctor_collect_dirty_files(sci, nilfs); in nilfs_segctor_do_construct()
2057 if (nilfs_test_metadata_dirty(nilfs, sci->sc_root)) in nilfs_segctor_do_construct()
2058 set_bit(NILFS_SC_DIRTY, &sci->sc_flags); in nilfs_segctor_do_construct()
2060 if (nilfs_segctor_clean(sci)) in nilfs_segctor_do_construct()
2064 sci->sc_stage.flags &= ~NILFS_CF_HISTORY_MASK; in nilfs_segctor_do_construct()
2066 err = nilfs_segctor_begin_construction(sci, nilfs); in nilfs_segctor_do_construct()
2071 sci->sc_seg_ctime = ktime_get_real_seconds(); in nilfs_segctor_do_construct()
2073 err = nilfs_segctor_collect(sci, nilfs, mode); in nilfs_segctor_do_construct()
2078 if (nilfs_sc_cstage_get(sci) == NILFS_ST_DONE && in nilfs_segctor_do_construct()
2079 nilfs_segbuf_empty(sci->sc_curseg)) { in nilfs_segctor_do_construct()
2080 nilfs_segctor_abort_construction(sci, nilfs, 1); in nilfs_segctor_do_construct()
2084 err = nilfs_segctor_assign(sci, mode); in nilfs_segctor_do_construct()
2088 if (sci->sc_stage.flags & NILFS_CF_IFILE_STARTED) in nilfs_segctor_do_construct()
2089 nilfs_segctor_fill_in_file_bmap(sci); in nilfs_segctor_do_construct()
2092 nilfs_sc_cstage_get(sci) >= NILFS_ST_CPFILE) { in nilfs_segctor_do_construct()
2093 err = nilfs_segctor_fill_in_checkpoint(sci); in nilfs_segctor_do_construct()
2097 nilfs_segctor_fill_in_super_root(sci, nilfs); in nilfs_segctor_do_construct()
2099 nilfs_segctor_update_segusage(sci, nilfs->ns_sufile); in nilfs_segctor_do_construct()
2102 nilfs_segctor_prepare_write(sci); in nilfs_segctor_do_construct()
2104 nilfs_add_checksums_on_logs(&sci->sc_segbufs, in nilfs_segctor_do_construct()
2107 err = nilfs_segctor_write(sci, nilfs); in nilfs_segctor_do_construct()
2111 if (nilfs_sc_cstage_get(sci) == NILFS_ST_DONE || in nilfs_segctor_do_construct()
2120 err = nilfs_segctor_wait(sci); in nilfs_segctor_do_construct()
2124 } while (nilfs_sc_cstage_get(sci) != NILFS_ST_DONE); in nilfs_segctor_do_construct()
2127 nilfs_segctor_drop_written_files(sci, nilfs); in nilfs_segctor_do_construct()
2131 if (sci->sc_stage.flags & NILFS_CF_IFILE_STARTED) in nilfs_segctor_do_construct()
2132 nilfs_redirty_inodes(&sci->sc_dirty_files); in nilfs_segctor_do_construct()
2136 nilfs_redirty_inodes(&sci->sc_gc_inodes); in nilfs_segctor_do_construct()
2137 nilfs_segctor_abort_construction(sci, nilfs, err); in nilfs_segctor_do_construct()
2143 * @sci: nilfs_sc_info
2149 static void nilfs_segctor_start_timer(struct nilfs_sc_info *sci) in nilfs_segctor_start_timer() argument
2151 spin_lock(&sci->sc_state_lock); in nilfs_segctor_start_timer()
2152 if (!(sci->sc_state & NILFS_SEGCTOR_COMMIT)) { in nilfs_segctor_start_timer()
2153 sci->sc_timer.expires = jiffies + sci->sc_interval; in nilfs_segctor_start_timer()
2154 add_timer(&sci->sc_timer); in nilfs_segctor_start_timer()
2155 sci->sc_state |= NILFS_SEGCTOR_COMMIT; in nilfs_segctor_start_timer()
2157 spin_unlock(&sci->sc_state_lock); in nilfs_segctor_start_timer()
2160 static void nilfs_segctor_do_flush(struct nilfs_sc_info *sci, int bn) in nilfs_segctor_do_flush() argument
2162 spin_lock(&sci->sc_state_lock); in nilfs_segctor_do_flush()
2163 if (!(sci->sc_flush_request & BIT(bn))) { in nilfs_segctor_do_flush()
2164 unsigned long prev_req = sci->sc_flush_request; in nilfs_segctor_do_flush()
2166 sci->sc_flush_request |= BIT(bn); in nilfs_segctor_do_flush()
2168 wake_up(&sci->sc_wait_daemon); in nilfs_segctor_do_flush()
2170 spin_unlock(&sci->sc_state_lock); in nilfs_segctor_do_flush()
2181 struct nilfs_sc_info *sci = nilfs->ns_writer; in nilfs_flush_segment() local
2183 if (!sci || nilfs_doing_construction()) in nilfs_flush_segment()
2185 nilfs_segctor_do_flush(sci, NILFS_MDT_INODE(sb, ino) ? ino : 0); in nilfs_flush_segment()
2196 static int nilfs_segctor_sync(struct nilfs_sc_info *sci) in nilfs_segctor_sync() argument
2201 spin_lock(&sci->sc_state_lock); in nilfs_segctor_sync()
2205 wait_req.seq = ++sci->sc_seq_request; in nilfs_segctor_sync()
2206 spin_unlock(&sci->sc_state_lock); in nilfs_segctor_sync()
2209 add_wait_queue(&sci->sc_wait_request, &wait_req.wq); in nilfs_segctor_sync()
2211 wake_up(&sci->sc_wait_daemon); in nilfs_segctor_sync()
2225 finish_wait(&sci->sc_wait_request, &wait_req.wq); in nilfs_segctor_sync()
2229 static void nilfs_segctor_wakeup(struct nilfs_sc_info *sci, int err) in nilfs_segctor_wakeup() argument
2234 spin_lock_irqsave(&sci->sc_wait_request.lock, flags); in nilfs_segctor_wakeup()
2235 list_for_each_entry_safe(wrq, n, &sci->sc_wait_request.head, wq.entry) { in nilfs_segctor_wakeup()
2237 nilfs_cnt32_ge(sci->sc_seq_done, wrq->seq)) { in nilfs_segctor_wakeup()
2247 spin_unlock_irqrestore(&sci->sc_wait_request.lock, flags); in nilfs_segctor_wakeup()
2270 struct nilfs_sc_info *sci = nilfs->ns_writer; in nilfs_construct_segment() local
2274 if (sb_rdonly(sb) || unlikely(!sci)) in nilfs_construct_segment()
2280 err = nilfs_segctor_sync(sci); in nilfs_construct_segment()
2308 struct nilfs_sc_info *sci = nilfs->ns_writer; in nilfs_construct_dsync_segment() local
2313 if (sb_rdonly(sb) || unlikely(!sci)) in nilfs_construct_dsync_segment()
2321 test_bit(NILFS_SC_UNCLOSED, &sci->sc_flags) || in nilfs_construct_dsync_segment()
2324 err = nilfs_segctor_sync(sci); in nilfs_construct_dsync_segment()
2336 sci->sc_dsync_inode = ii; in nilfs_construct_dsync_segment()
2337 sci->sc_dsync_start = start; in nilfs_construct_dsync_segment()
2338 sci->sc_dsync_end = end; in nilfs_construct_dsync_segment()
2340 err = nilfs_segctor_do_construct(sci, SC_LSEG_DSYNC); in nilfs_construct_dsync_segment()
2353 * @sci: segment constructor object
2355 static void nilfs_segctor_accept(struct nilfs_sc_info *sci) in nilfs_segctor_accept() argument
2357 spin_lock(&sci->sc_state_lock); in nilfs_segctor_accept()
2358 sci->sc_seq_accepted = sci->sc_seq_request; in nilfs_segctor_accept()
2359 spin_unlock(&sci->sc_state_lock); in nilfs_segctor_accept()
2360 del_timer_sync(&sci->sc_timer); in nilfs_segctor_accept()
2365 * @sci: segment constructor object
2369 static void nilfs_segctor_notify(struct nilfs_sc_info *sci, int mode, int err) in nilfs_segctor_notify() argument
2372 spin_lock(&sci->sc_state_lock); in nilfs_segctor_notify()
2375 sci->sc_state &= ~NILFS_SEGCTOR_COMMIT; in nilfs_segctor_notify()
2376 sci->sc_seq_done = sci->sc_seq_accepted; in nilfs_segctor_notify()
2377 nilfs_segctor_wakeup(sci, err); in nilfs_segctor_notify()
2378 sci->sc_flush_request = 0; in nilfs_segctor_notify()
2381 sci->sc_flush_request &= ~FLUSH_FILE_BIT; in nilfs_segctor_notify()
2383 sci->sc_flush_request &= ~FLUSH_DAT_BIT; in nilfs_segctor_notify()
2386 if ((sci->sc_state & NILFS_SEGCTOR_COMMIT) && in nilfs_segctor_notify()
2387 time_before(jiffies, sci->sc_timer.expires)) in nilfs_segctor_notify()
2388 add_timer(&sci->sc_timer); in nilfs_segctor_notify()
2390 spin_unlock(&sci->sc_state_lock); in nilfs_segctor_notify()
2395 * @sci: segment constructor object
2398 static int nilfs_segctor_construct(struct nilfs_sc_info *sci, int mode) in nilfs_segctor_construct() argument
2400 struct the_nilfs *nilfs = sci->sc_super->s_fs_info; in nilfs_segctor_construct()
2404 nilfs_segctor_accept(sci); in nilfs_segctor_construct()
2408 if (!nilfs_segctor_confirm(sci)) in nilfs_segctor_construct()
2409 err = nilfs_segctor_do_construct(sci, mode); in nilfs_segctor_construct()
2414 if (test_bit(NILFS_SC_SUPER_ROOT, &sci->sc_flags) && in nilfs_segctor_construct()
2418 sbp = nilfs_prepare_super(sci->sc_super, in nilfs_segctor_construct()
2422 err = nilfs_commit_super(sci->sc_super, in nilfs_segctor_construct()
2429 nilfs_segctor_notify(sci, mode, err); in nilfs_segctor_construct()
2435 struct nilfs_sc_info *sci = from_timer(sci, t, sc_timer); in nilfs_construction_timeout() local
2437 wake_up_process(sci->sc_timer_task); in nilfs_construction_timeout()
2459 struct nilfs_sc_info *sci = nilfs->ns_writer; in nilfs_clean_segments() local
2463 if (unlikely(!sci)) in nilfs_clean_segments()
2478 sci->sc_freesegs = kbufs[4]; in nilfs_clean_segments()
2479 sci->sc_nfreesegs = argv[4].v_nmembs; in nilfs_clean_segments()
2480 list_splice_tail_init(&nilfs->ns_gc_inodes, &sci->sc_gc_inodes); in nilfs_clean_segments()
2483 err = nilfs_segctor_construct(sci, SC_LSEG_SR); in nilfs_clean_segments()
2484 nilfs_remove_written_gcinodes(nilfs, &sci->sc_gc_inodes); in nilfs_clean_segments()
2491 schedule_timeout(sci->sc_interval); in nilfs_clean_segments()
2494 int ret = nilfs_discard_segments(nilfs, sci->sc_freesegs, in nilfs_clean_segments()
2495 sci->sc_nfreesegs); in nilfs_clean_segments()
2505 sci->sc_freesegs = NULL; in nilfs_clean_segments()
2506 sci->sc_nfreesegs = 0; in nilfs_clean_segments()
2512 static void nilfs_segctor_thread_construct(struct nilfs_sc_info *sci, int mode) in nilfs_segctor_thread_construct() argument
2516 nilfs_transaction_lock(sci->sc_super, &ti, 0); in nilfs_segctor_thread_construct()
2517 nilfs_segctor_construct(sci, mode); in nilfs_segctor_thread_construct()
2524 if (test_bit(NILFS_SC_UNCLOSED, &sci->sc_flags)) in nilfs_segctor_thread_construct()
2525 nilfs_segctor_start_timer(sci); in nilfs_segctor_thread_construct()
2527 nilfs_transaction_unlock(sci->sc_super); in nilfs_segctor_thread_construct()
2530 static void nilfs_segctor_do_immediate_flush(struct nilfs_sc_info *sci) in nilfs_segctor_do_immediate_flush() argument
2534 spin_lock(&sci->sc_state_lock); in nilfs_segctor_do_immediate_flush()
2535 mode = (sci->sc_flush_request & FLUSH_DAT_BIT) ? in nilfs_segctor_do_immediate_flush()
2537 spin_unlock(&sci->sc_state_lock); in nilfs_segctor_do_immediate_flush()
2540 nilfs_segctor_do_construct(sci, mode); in nilfs_segctor_do_immediate_flush()
2542 spin_lock(&sci->sc_state_lock); in nilfs_segctor_do_immediate_flush()
2543 sci->sc_flush_request &= (mode == SC_FLUSH_FILE) ? in nilfs_segctor_do_immediate_flush()
2545 spin_unlock(&sci->sc_state_lock); in nilfs_segctor_do_immediate_flush()
2547 clear_bit(NILFS_SC_PRIOR_FLUSH, &sci->sc_flags); in nilfs_segctor_do_immediate_flush()
2550 static int nilfs_segctor_flush_mode(struct nilfs_sc_info *sci) in nilfs_segctor_flush_mode() argument
2552 if (!test_bit(NILFS_SC_UNCLOSED, &sci->sc_flags) || in nilfs_segctor_flush_mode()
2553 time_before(jiffies, sci->sc_lseg_stime + sci->sc_mjcp_freq)) { in nilfs_segctor_flush_mode()
2554 if (!(sci->sc_flush_request & ~FLUSH_FILE_BIT)) in nilfs_segctor_flush_mode()
2556 else if (!(sci->sc_flush_request & ~FLUSH_DAT_BIT)) in nilfs_segctor_flush_mode()
2571 struct nilfs_sc_info *sci = (struct nilfs_sc_info *)arg; in nilfs_segctor_thread() local
2572 struct the_nilfs *nilfs = sci->sc_super->s_fs_info; in nilfs_segctor_thread()
2575 sci->sc_timer_task = current; in nilfs_segctor_thread()
2578 sci->sc_task = current; in nilfs_segctor_thread()
2579 wake_up(&sci->sc_wait_task); /* for nilfs_segctor_start_thread() */ in nilfs_segctor_thread()
2580 nilfs_info(sci->sc_super, in nilfs_segctor_thread()
2582 sci->sc_interval / HZ, sci->sc_mjcp_freq / HZ); in nilfs_segctor_thread()
2584 spin_lock(&sci->sc_state_lock); in nilfs_segctor_thread()
2589 if (sci->sc_state & NILFS_SEGCTOR_QUIT) in nilfs_segctor_thread()
2592 if (timeout || sci->sc_seq_request != sci->sc_seq_done) in nilfs_segctor_thread()
2594 else if (sci->sc_flush_request) in nilfs_segctor_thread()
2595 mode = nilfs_segctor_flush_mode(sci); in nilfs_segctor_thread()
2599 spin_unlock(&sci->sc_state_lock); in nilfs_segctor_thread()
2600 nilfs_segctor_thread_construct(sci, mode); in nilfs_segctor_thread()
2601 spin_lock(&sci->sc_state_lock); in nilfs_segctor_thread()
2607 spin_unlock(&sci->sc_state_lock); in nilfs_segctor_thread()
2609 spin_lock(&sci->sc_state_lock); in nilfs_segctor_thread()
2614 prepare_to_wait(&sci->sc_wait_daemon, &wait, in nilfs_segctor_thread()
2617 if (sci->sc_seq_request != sci->sc_seq_done) in nilfs_segctor_thread()
2619 else if (sci->sc_flush_request) in nilfs_segctor_thread()
2621 else if (sci->sc_state & NILFS_SEGCTOR_COMMIT) in nilfs_segctor_thread()
2623 sci->sc_timer.expires); in nilfs_segctor_thread()
2626 spin_unlock(&sci->sc_state_lock); in nilfs_segctor_thread()
2628 spin_lock(&sci->sc_state_lock); in nilfs_segctor_thread()
2630 finish_wait(&sci->sc_wait_daemon, &wait); in nilfs_segctor_thread()
2631 timeout = ((sci->sc_state & NILFS_SEGCTOR_COMMIT) && in nilfs_segctor_thread()
2632 time_after_eq(jiffies, sci->sc_timer.expires)); in nilfs_segctor_thread()
2641 sci->sc_task = NULL; in nilfs_segctor_thread()
2642 wake_up(&sci->sc_wait_task); /* for nilfs_segctor_kill_thread() */ in nilfs_segctor_thread()
2643 spin_unlock(&sci->sc_state_lock); in nilfs_segctor_thread()
2647 static int nilfs_segctor_start_thread(struct nilfs_sc_info *sci) in nilfs_segctor_start_thread() argument
2651 t = kthread_run(nilfs_segctor_thread, sci, "segctord"); in nilfs_segctor_start_thread()
2655 nilfs_err(sci->sc_super, "error %d creating segctord thread", in nilfs_segctor_start_thread()
2659 wait_event(sci->sc_wait_task, sci->sc_task != NULL); in nilfs_segctor_start_thread()
2663 static void nilfs_segctor_kill_thread(struct nilfs_sc_info *sci) in nilfs_segctor_kill_thread() argument
2664 __acquires(&sci->sc_state_lock) in nilfs_segctor_kill_thread()
2665 __releases(&sci->sc_state_lock) in nilfs_segctor_kill_thread()
2667 sci->sc_state |= NILFS_SEGCTOR_QUIT; in nilfs_segctor_kill_thread()
2669 while (sci->sc_task) { in nilfs_segctor_kill_thread()
2670 wake_up(&sci->sc_wait_daemon); in nilfs_segctor_kill_thread()
2671 spin_unlock(&sci->sc_state_lock); in nilfs_segctor_kill_thread()
2672 wait_event(sci->sc_wait_task, sci->sc_task == NULL); in nilfs_segctor_kill_thread()
2673 spin_lock(&sci->sc_state_lock); in nilfs_segctor_kill_thread()
2684 struct nilfs_sc_info *sci; in nilfs_segctor_new() local
2686 sci = kzalloc(sizeof(*sci), GFP_KERNEL); in nilfs_segctor_new()
2687 if (!sci) in nilfs_segctor_new()
2690 sci->sc_super = sb; in nilfs_segctor_new()
2693 sci->sc_root = root; in nilfs_segctor_new()
2695 init_waitqueue_head(&sci->sc_wait_request); in nilfs_segctor_new()
2696 init_waitqueue_head(&sci->sc_wait_daemon); in nilfs_segctor_new()
2697 init_waitqueue_head(&sci->sc_wait_task); in nilfs_segctor_new()
2698 spin_lock_init(&sci->sc_state_lock); in nilfs_segctor_new()
2699 INIT_LIST_HEAD(&sci->sc_dirty_files); in nilfs_segctor_new()
2700 INIT_LIST_HEAD(&sci->sc_segbufs); in nilfs_segctor_new()
2701 INIT_LIST_HEAD(&sci->sc_write_logs); in nilfs_segctor_new()
2702 INIT_LIST_HEAD(&sci->sc_gc_inodes); in nilfs_segctor_new()
2703 INIT_LIST_HEAD(&sci->sc_iput_queue); in nilfs_segctor_new()
2704 INIT_WORK(&sci->sc_iput_work, nilfs_iput_work_func); in nilfs_segctor_new()
2705 timer_setup(&sci->sc_timer, nilfs_construction_timeout, 0); in nilfs_segctor_new()
2707 sci->sc_interval = HZ * NILFS_SC_DEFAULT_TIMEOUT; in nilfs_segctor_new()
2708 sci->sc_mjcp_freq = HZ * NILFS_SC_DEFAULT_SR_FREQ; in nilfs_segctor_new()
2709 sci->sc_watermark = NILFS_SC_DEFAULT_WATERMARK; in nilfs_segctor_new()
2712 sci->sc_interval = HZ * nilfs->ns_interval; in nilfs_segctor_new()
2714 sci->sc_watermark = nilfs->ns_watermark; in nilfs_segctor_new()
2715 return sci; in nilfs_segctor_new()
2718 static void nilfs_segctor_write_out(struct nilfs_sc_info *sci) in nilfs_segctor_write_out() argument
2729 nilfs_transaction_lock(sci->sc_super, &ti, 0); in nilfs_segctor_write_out()
2730 ret = nilfs_segctor_construct(sci, SC_LSEG_SR); in nilfs_segctor_write_out()
2731 nilfs_transaction_unlock(sci->sc_super); in nilfs_segctor_write_out()
2733 flush_work(&sci->sc_iput_work); in nilfs_segctor_write_out()
2740 * @sci: nilfs_sc_info
2746 static void nilfs_segctor_destroy(struct nilfs_sc_info *sci) in nilfs_segctor_destroy() argument
2748 struct the_nilfs *nilfs = sci->sc_super->s_fs_info; in nilfs_segctor_destroy()
2753 spin_lock(&sci->sc_state_lock); in nilfs_segctor_destroy()
2754 nilfs_segctor_kill_thread(sci); in nilfs_segctor_destroy()
2755 flag = ((sci->sc_state & NILFS_SEGCTOR_COMMIT) || sci->sc_flush_request in nilfs_segctor_destroy()
2756 || sci->sc_seq_request != sci->sc_seq_done); in nilfs_segctor_destroy()
2757 spin_unlock(&sci->sc_state_lock); in nilfs_segctor_destroy()
2759 if (flush_work(&sci->sc_iput_work)) in nilfs_segctor_destroy()
2762 if (flag || !nilfs_segctor_confirm(sci)) in nilfs_segctor_destroy()
2763 nilfs_segctor_write_out(sci); in nilfs_segctor_destroy()
2765 if (!list_empty(&sci->sc_dirty_files)) { in nilfs_segctor_destroy()
2766 nilfs_warn(sci->sc_super, in nilfs_segctor_destroy()
2768 nilfs_dispose_list(nilfs, &sci->sc_dirty_files, 1); in nilfs_segctor_destroy()
2771 if (!list_empty(&sci->sc_iput_queue)) { in nilfs_segctor_destroy()
2772 nilfs_warn(sci->sc_super, in nilfs_segctor_destroy()
2774 nilfs_dispose_list(nilfs, &sci->sc_iput_queue, 1); in nilfs_segctor_destroy()
2777 WARN_ON(!list_empty(&sci->sc_segbufs)); in nilfs_segctor_destroy()
2778 WARN_ON(!list_empty(&sci->sc_write_logs)); in nilfs_segctor_destroy()
2780 nilfs_put_root(sci->sc_root); in nilfs_segctor_destroy()
2784 del_timer_sync(&sci->sc_timer); in nilfs_segctor_destroy()
2785 kfree(sci); in nilfs_segctor_destroy()