Lines Matching refs:sci
93 static inline void nilfs_sc_cstage_inc(struct nilfs_sc_info *sci) in nilfs_sc_cstage_inc() argument
95 sci->sc_stage.scnt++; in nilfs_sc_cstage_inc()
96 trace_nilfs2_collection_stage_transition(sci); in nilfs_sc_cstage_inc()
99 static inline void nilfs_sc_cstage_set(struct nilfs_sc_info *sci, int next_scnt) in nilfs_sc_cstage_set() argument
101 sci->sc_stage.scnt = next_scnt; in nilfs_sc_cstage_set()
102 trace_nilfs2_collection_stage_transition(sci); in nilfs_sc_cstage_set()
105 static inline int nilfs_sc_cstage_get(struct nilfs_sc_info *sci) in nilfs_sc_cstage_get() argument
107 return sci->sc_stage.scnt; in nilfs_sc_cstage_get()
281 struct nilfs_sc_info *sci = nilfs->ns_writer; in nilfs_transaction_commit() local
284 nilfs_segctor_start_timer(sci); in nilfs_transaction_commit()
285 if (atomic_read(&nilfs->ns_ndirtyblks) > sci->sc_watermark) in nilfs_transaction_commit()
286 nilfs_segctor_do_flush(sci, 0); in nilfs_transaction_commit()
328 struct nilfs_sc_info *sci = nilfs->ns_writer; in nilfs_relax_pressure_in_lock() local
330 if (!sci || !sci->sc_flush_request) in nilfs_relax_pressure_in_lock()
333 set_bit(NILFS_SC_PRIOR_FLUSH, &sci->sc_flags); in nilfs_relax_pressure_in_lock()
337 if (sci->sc_flush_request && in nilfs_relax_pressure_in_lock()
338 test_bit(NILFS_SC_PRIOR_FLUSH, &sci->sc_flags)) { in nilfs_relax_pressure_in_lock()
342 nilfs_segctor_do_immediate_flush(sci); in nilfs_relax_pressure_in_lock()
354 struct nilfs_sc_info *sci = nilfs->ns_writer; in nilfs_transaction_lock() local
368 if (!test_bit(NILFS_SC_PRIOR_FLUSH, &sci->sc_flags)) in nilfs_transaction_lock()
371 nilfs_segctor_do_immediate_flush(sci); in nilfs_transaction_lock()
398 static void *nilfs_segctor_map_segsum_entry(struct nilfs_sc_info *sci, in nilfs_segctor_map_segsum_entry() argument
402 struct nilfs_segment_buffer *segbuf = sci->sc_curseg; in nilfs_segctor_map_segsum_entry()
403 unsigned blocksize = sci->sc_super->s_blocksize; in nilfs_segctor_map_segsum_entry()
421 static int nilfs_segctor_reset_segment_buffer(struct nilfs_sc_info *sci) in nilfs_segctor_reset_segment_buffer() argument
423 struct nilfs_segment_buffer *segbuf = sci->sc_curseg; in nilfs_segctor_reset_segment_buffer()
431 err = nilfs_segbuf_reset(segbuf, flags, sci->sc_seg_ctime, sci->sc_cno); in nilfs_segctor_reset_segment_buffer()
437 sci->sc_finfo_ptr.bh = sumbh; sci->sc_finfo_ptr.offset = sumbytes; in nilfs_segctor_reset_segment_buffer()
438 sci->sc_binfo_ptr.bh = sumbh; sci->sc_binfo_ptr.offset = sumbytes; in nilfs_segctor_reset_segment_buffer()
439 sci->sc_blk_cnt = sci->sc_datablk_cnt = 0; in nilfs_segctor_reset_segment_buffer()
443 static int nilfs_segctor_feed_segment(struct nilfs_sc_info *sci) in nilfs_segctor_feed_segment() argument
445 sci->sc_nblk_this_inc += sci->sc_curseg->sb_sum.nblocks; in nilfs_segctor_feed_segment()
446 if (NILFS_SEGBUF_IS_LAST(sci->sc_curseg, &sci->sc_segbufs)) in nilfs_segctor_feed_segment()
449 sci->sc_curseg = NILFS_NEXT_SEGBUF(sci->sc_curseg); in nilfs_segctor_feed_segment()
450 return nilfs_segctor_reset_segment_buffer(sci); in nilfs_segctor_feed_segment()
453 static int nilfs_segctor_add_super_root(struct nilfs_sc_info *sci) in nilfs_segctor_add_super_root() argument
455 struct nilfs_segment_buffer *segbuf = sci->sc_curseg; in nilfs_segctor_add_super_root()
459 err = nilfs_segctor_feed_segment(sci); in nilfs_segctor_add_super_root()
462 segbuf = sci->sc_curseg; in nilfs_segctor_add_super_root()
474 struct nilfs_sc_info *sci, const struct nilfs_segsum_pointer *ssp, in nilfs_segctor_segsum_block_required() argument
477 unsigned blocksize = sci->sc_super->s_blocksize; in nilfs_segctor_segsum_block_required()
481 (!sci->sc_blk_cnt ? sizeof(struct nilfs_finfo) : 0) > in nilfs_segctor_segsum_block_required()
485 static void nilfs_segctor_begin_finfo(struct nilfs_sc_info *sci, in nilfs_segctor_begin_finfo() argument
488 sci->sc_curseg->sb_sum.nfinfo++; in nilfs_segctor_begin_finfo()
489 sci->sc_binfo_ptr = sci->sc_finfo_ptr; in nilfs_segctor_begin_finfo()
491 sci, &sci->sc_binfo_ptr, sizeof(struct nilfs_finfo)); in nilfs_segctor_begin_finfo()
494 !test_bit(NILFS_SC_HAVE_DELTA, &sci->sc_flags)) in nilfs_segctor_begin_finfo()
495 set_bit(NILFS_SC_HAVE_DELTA, &sci->sc_flags); in nilfs_segctor_begin_finfo()
499 static void nilfs_segctor_end_finfo(struct nilfs_sc_info *sci, in nilfs_segctor_end_finfo() argument
507 if (sci->sc_blk_cnt == 0) in nilfs_segctor_end_finfo()
517 cno = sci->sc_cno; in nilfs_segctor_end_finfo()
519 finfo = nilfs_segctor_map_segsum_entry(sci, &sci->sc_finfo_ptr, in nilfs_segctor_end_finfo()
522 finfo->fi_nblocks = cpu_to_le32(sci->sc_blk_cnt); in nilfs_segctor_end_finfo()
523 finfo->fi_ndatablk = cpu_to_le32(sci->sc_datablk_cnt); in nilfs_segctor_end_finfo()
526 segbuf = sci->sc_curseg; in nilfs_segctor_end_finfo()
527 segbuf->sb_sum.sumbytes = sci->sc_binfo_ptr.offset + in nilfs_segctor_end_finfo()
528 sci->sc_super->s_blocksize * (segbuf->sb_sum.nsumblk - 1); in nilfs_segctor_end_finfo()
529 sci->sc_finfo_ptr = sci->sc_binfo_ptr; in nilfs_segctor_end_finfo()
530 sci->sc_blk_cnt = sci->sc_datablk_cnt = 0; in nilfs_segctor_end_finfo()
533 static int nilfs_segctor_add_file_block(struct nilfs_sc_info *sci, in nilfs_segctor_add_file_block() argument
542 segbuf = sci->sc_curseg; in nilfs_segctor_add_file_block()
544 sci, &sci->sc_binfo_ptr, binfo_size); in nilfs_segctor_add_file_block()
546 nilfs_segctor_end_finfo(sci, inode); in nilfs_segctor_add_file_block()
547 err = nilfs_segctor_feed_segment(sci); in nilfs_segctor_add_file_block()
557 if (sci->sc_blk_cnt == 0) in nilfs_segctor_add_file_block()
558 nilfs_segctor_begin_finfo(sci, inode); in nilfs_segctor_add_file_block()
560 nilfs_segctor_map_segsum_entry(sci, &sci->sc_binfo_ptr, binfo_size); in nilfs_segctor_add_file_block()
563 sci->sc_blk_cnt++; in nilfs_segctor_add_file_block()
571 static int nilfs_collect_file_data(struct nilfs_sc_info *sci, in nilfs_collect_file_data() argument
580 err = nilfs_segctor_add_file_block(sci, bh, inode, in nilfs_collect_file_data()
583 sci->sc_datablk_cnt++; in nilfs_collect_file_data()
587 static int nilfs_collect_file_node(struct nilfs_sc_info *sci, in nilfs_collect_file_node() argument
594 static int nilfs_collect_file_bmap(struct nilfs_sc_info *sci, in nilfs_collect_file_bmap() argument
599 return nilfs_segctor_add_file_block(sci, bh, inode, sizeof(__le64)); in nilfs_collect_file_bmap()
602 static void nilfs_write_file_data_binfo(struct nilfs_sc_info *sci, in nilfs_write_file_data_binfo() argument
607 sci, ssp, sizeof(*binfo_v)); in nilfs_write_file_data_binfo()
611 static void nilfs_write_file_node_binfo(struct nilfs_sc_info *sci, in nilfs_write_file_node_binfo() argument
616 sci, ssp, sizeof(*vblocknr)); in nilfs_write_file_node_binfo()
628 static int nilfs_collect_dat_data(struct nilfs_sc_info *sci, in nilfs_collect_dat_data() argument
637 err = nilfs_segctor_add_file_block(sci, bh, inode, sizeof(__le64)); in nilfs_collect_dat_data()
639 sci->sc_datablk_cnt++; in nilfs_collect_dat_data()
643 static int nilfs_collect_dat_bmap(struct nilfs_sc_info *sci, in nilfs_collect_dat_bmap() argument
647 return nilfs_segctor_add_file_block(sci, bh, inode, in nilfs_collect_dat_bmap()
651 static void nilfs_write_dat_data_binfo(struct nilfs_sc_info *sci, in nilfs_write_dat_data_binfo() argument
655 __le64 *blkoff = nilfs_segctor_map_segsum_entry(sci, ssp, in nilfs_write_dat_data_binfo()
660 static void nilfs_write_dat_node_binfo(struct nilfs_sc_info *sci, in nilfs_write_dat_node_binfo() argument
665 nilfs_segctor_map_segsum_entry(sci, ssp, sizeof(*binfo_dat)); in nilfs_write_dat_node_binfo()
810 struct nilfs_sc_info *sci = container_of(work, struct nilfs_sc_info, in nilfs_iput_work_func() local
812 struct the_nilfs *nilfs = sci->sc_super->s_fs_info; in nilfs_iput_work_func()
814 nilfs_dispose_list(nilfs, &sci->sc_iput_queue, 0); in nilfs_iput_work_func()
833 static int nilfs_segctor_clean(struct nilfs_sc_info *sci) in nilfs_segctor_clean() argument
835 return list_empty(&sci->sc_dirty_files) && in nilfs_segctor_clean()
836 !test_bit(NILFS_SC_DIRTY, &sci->sc_flags) && in nilfs_segctor_clean()
837 sci->sc_nfreesegs == 0 && in nilfs_segctor_clean()
838 (!nilfs_doing_gc() || list_empty(&sci->sc_gc_inodes)); in nilfs_segctor_clean()
841 static int nilfs_segctor_confirm(struct nilfs_sc_info *sci) in nilfs_segctor_confirm() argument
843 struct the_nilfs *nilfs = sci->sc_super->s_fs_info; in nilfs_segctor_confirm()
846 if (nilfs_test_metadata_dirty(nilfs, sci->sc_root)) in nilfs_segctor_confirm()
847 set_bit(NILFS_SC_DIRTY, &sci->sc_flags); in nilfs_segctor_confirm()
850 if (list_empty(&nilfs->ns_dirty_files) && nilfs_segctor_clean(sci)) in nilfs_segctor_confirm()
857 static void nilfs_segctor_clear_metadata_dirty(struct nilfs_sc_info *sci) in nilfs_segctor_clear_metadata_dirty() argument
859 struct the_nilfs *nilfs = sci->sc_super->s_fs_info; in nilfs_segctor_clear_metadata_dirty()
861 nilfs_mdt_clear_dirty(sci->sc_root->ifile); in nilfs_segctor_clear_metadata_dirty()
867 static int nilfs_segctor_create_checkpoint(struct nilfs_sc_info *sci) in nilfs_segctor_create_checkpoint() argument
869 struct the_nilfs *nilfs = sci->sc_super->s_fs_info; in nilfs_segctor_create_checkpoint()
891 static int nilfs_segctor_fill_in_checkpoint(struct nilfs_sc_info *sci) in nilfs_segctor_fill_in_checkpoint() argument
893 struct the_nilfs *nilfs = sci->sc_super->s_fs_info; in nilfs_segctor_fill_in_checkpoint()
907 cpu_to_le64(atomic64_read(&sci->sc_root->inodes_count)); in nilfs_segctor_fill_in_checkpoint()
909 cpu_to_le64(atomic64_read(&sci->sc_root->blocks_count)); in nilfs_segctor_fill_in_checkpoint()
911 cpu_to_le64(sci->sc_nblk_inc + sci->sc_nblk_this_inc); in nilfs_segctor_fill_in_checkpoint()
912 raw_cp->cp_create = cpu_to_le64(sci->sc_seg_ctime); in nilfs_segctor_fill_in_checkpoint()
915 if (test_bit(NILFS_SC_HAVE_DELTA, &sci->sc_flags)) in nilfs_segctor_fill_in_checkpoint()
920 nilfs_write_inode_common(sci->sc_root->ifile, in nilfs_segctor_fill_in_checkpoint()
946 static void nilfs_segctor_fill_in_file_bmap(struct nilfs_sc_info *sci) in nilfs_segctor_fill_in_file_bmap() argument
950 list_for_each_entry(ii, &sci->sc_dirty_files, i_dirty) { in nilfs_segctor_fill_in_file_bmap()
951 nilfs_fill_in_file_bmap(sci->sc_root->ifile, ii); in nilfs_segctor_fill_in_file_bmap()
956 static void nilfs_segctor_fill_in_super_root(struct nilfs_sc_info *sci, in nilfs_segctor_fill_in_super_root() argument
963 bh_sr = NILFS_LAST_SEGBUF(&sci->sc_segbufs)->sb_super_root; in nilfs_segctor_fill_in_super_root()
971 nilfs->ns_nongc_ctime : sci->sc_seg_ctime); in nilfs_segctor_fill_in_super_root()
1006 static int nilfs_segctor_apply_buffers(struct nilfs_sc_info *sci, in nilfs_segctor_apply_buffers() argument
1019 err = collect(sci, bh, inode); in nilfs_segctor_apply_buffers()
1037 static size_t nilfs_segctor_buffer_rest(struct nilfs_sc_info *sci) in nilfs_segctor_buffer_rest() argument
1040 return sci->sc_segbuf_nblocks - in nilfs_segctor_buffer_rest()
1041 (sci->sc_nblk_this_inc + sci->sc_curseg->sb_sum.nblocks); in nilfs_segctor_buffer_rest()
1044 static int nilfs_segctor_scan_file(struct nilfs_sc_info *sci, in nilfs_segctor_scan_file() argument
1052 if (!(sci->sc_stage.flags & NILFS_CF_NODE)) { in nilfs_segctor_scan_file()
1053 size_t n, rest = nilfs_segctor_buffer_rest(sci); in nilfs_segctor_scan_file()
1059 sci, inode, &data_buffers, in nilfs_segctor_scan_file()
1067 if (!(sci->sc_stage.flags & NILFS_CF_NODE)) { in nilfs_segctor_scan_file()
1069 sci, inode, &data_buffers, sc_ops->collect_data); in nilfs_segctor_scan_file()
1073 sci, inode, &node_buffers, NULL); in nilfs_segctor_scan_file()
1076 sci->sc_stage.flags |= NILFS_CF_NODE; in nilfs_segctor_scan_file()
1080 sci, inode, &node_buffers, sc_ops->collect_node); in nilfs_segctor_scan_file()
1086 sci, inode, &node_buffers, sc_ops->collect_bmap); in nilfs_segctor_scan_file()
1090 nilfs_segctor_end_finfo(sci, inode); in nilfs_segctor_scan_file()
1091 sci->sc_stage.flags &= ~NILFS_CF_NODE; in nilfs_segctor_scan_file()
1097 static int nilfs_segctor_scan_file_dsync(struct nilfs_sc_info *sci, in nilfs_segctor_scan_file_dsync() argument
1101 size_t n, rest = nilfs_segctor_buffer_rest(sci); in nilfs_segctor_scan_file_dsync()
1105 sci->sc_dsync_start, in nilfs_segctor_scan_file_dsync()
1106 sci->sc_dsync_end); in nilfs_segctor_scan_file_dsync()
1108 err = nilfs_segctor_apply_buffers(sci, inode, &data_buffers, in nilfs_segctor_scan_file_dsync()
1111 nilfs_segctor_end_finfo(sci, inode); in nilfs_segctor_scan_file_dsync()
1118 static int nilfs_segctor_collect_blocks(struct nilfs_sc_info *sci, int mode) in nilfs_segctor_collect_blocks() argument
1120 struct the_nilfs *nilfs = sci->sc_super->s_fs_info; in nilfs_segctor_collect_blocks()
1126 switch (nilfs_sc_cstage_get(sci)) { in nilfs_segctor_collect_blocks()
1129 sci->sc_stage.flags = 0; in nilfs_segctor_collect_blocks()
1131 if (!test_bit(NILFS_SC_UNCLOSED, &sci->sc_flags)) { in nilfs_segctor_collect_blocks()
1132 sci->sc_nblk_inc = 0; in nilfs_segctor_collect_blocks()
1133 sci->sc_curseg->sb_sum.flags = NILFS_SS_LOGBGN; in nilfs_segctor_collect_blocks()
1135 nilfs_sc_cstage_set(sci, NILFS_ST_DSYNC); in nilfs_segctor_collect_blocks()
1140 sci->sc_stage.dirty_file_ptr = NULL; in nilfs_segctor_collect_blocks()
1141 sci->sc_stage.gc_inode_ptr = NULL; in nilfs_segctor_collect_blocks()
1143 nilfs_sc_cstage_set(sci, NILFS_ST_DAT); in nilfs_segctor_collect_blocks()
1146 nilfs_sc_cstage_inc(sci); /* Fall through */ in nilfs_segctor_collect_blocks()
1149 head = &sci->sc_gc_inodes; in nilfs_segctor_collect_blocks()
1150 ii = list_prepare_entry(sci->sc_stage.gc_inode_ptr, in nilfs_segctor_collect_blocks()
1154 sci, &ii->vfs_inode, in nilfs_segctor_collect_blocks()
1157 sci->sc_stage.gc_inode_ptr = list_entry( in nilfs_segctor_collect_blocks()
1165 sci->sc_stage.gc_inode_ptr = NULL; in nilfs_segctor_collect_blocks()
1167 nilfs_sc_cstage_inc(sci); /* Fall through */ in nilfs_segctor_collect_blocks()
1169 head = &sci->sc_dirty_files; in nilfs_segctor_collect_blocks()
1170 ii = list_prepare_entry(sci->sc_stage.dirty_file_ptr, head, in nilfs_segctor_collect_blocks()
1175 err = nilfs_segctor_scan_file(sci, &ii->vfs_inode, in nilfs_segctor_collect_blocks()
1178 sci->sc_stage.dirty_file_ptr = in nilfs_segctor_collect_blocks()
1187 sci->sc_stage.dirty_file_ptr = NULL; in nilfs_segctor_collect_blocks()
1189 nilfs_sc_cstage_set(sci, NILFS_ST_DONE); in nilfs_segctor_collect_blocks()
1192 nilfs_sc_cstage_inc(sci); in nilfs_segctor_collect_blocks()
1193 sci->sc_stage.flags |= NILFS_CF_IFILE_STARTED; in nilfs_segctor_collect_blocks()
1196 err = nilfs_segctor_scan_file(sci, sci->sc_root->ifile, in nilfs_segctor_collect_blocks()
1200 nilfs_sc_cstage_inc(sci); in nilfs_segctor_collect_blocks()
1202 err = nilfs_segctor_create_checkpoint(sci); in nilfs_segctor_collect_blocks()
1207 err = nilfs_segctor_scan_file(sci, nilfs->ns_cpfile, in nilfs_segctor_collect_blocks()
1211 nilfs_sc_cstage_inc(sci); /* Fall through */ in nilfs_segctor_collect_blocks()
1213 err = nilfs_sufile_freev(nilfs->ns_sufile, sci->sc_freesegs, in nilfs_segctor_collect_blocks()
1214 sci->sc_nfreesegs, &ndone); in nilfs_segctor_collect_blocks()
1217 sci->sc_freesegs, ndone, in nilfs_segctor_collect_blocks()
1221 sci->sc_stage.flags |= NILFS_CF_SUFREED; in nilfs_segctor_collect_blocks()
1223 err = nilfs_segctor_scan_file(sci, nilfs->ns_sufile, in nilfs_segctor_collect_blocks()
1227 nilfs_sc_cstage_inc(sci); /* Fall through */ in nilfs_segctor_collect_blocks()
1230 err = nilfs_segctor_scan_file(sci, nilfs->ns_dat, in nilfs_segctor_collect_blocks()
1235 nilfs_sc_cstage_set(sci, NILFS_ST_DONE); in nilfs_segctor_collect_blocks()
1238 nilfs_sc_cstage_inc(sci); /* Fall through */ in nilfs_segctor_collect_blocks()
1242 err = nilfs_segctor_add_super_root(sci); in nilfs_segctor_collect_blocks()
1247 sci->sc_curseg->sb_sum.flags |= NILFS_SS_LOGEND; in nilfs_segctor_collect_blocks()
1248 nilfs_sc_cstage_set(sci, NILFS_ST_DONE); in nilfs_segctor_collect_blocks()
1252 sci->sc_curseg->sb_sum.flags |= NILFS_SS_SYNDT; in nilfs_segctor_collect_blocks()
1253 ii = sci->sc_dsync_inode; in nilfs_segctor_collect_blocks()
1257 err = nilfs_segctor_scan_file_dsync(sci, &ii->vfs_inode); in nilfs_segctor_collect_blocks()
1260 sci->sc_curseg->sb_sum.flags |= NILFS_SS_LOGEND; in nilfs_segctor_collect_blocks()
1261 nilfs_sc_cstage_set(sci, NILFS_ST_DONE); in nilfs_segctor_collect_blocks()
1278 static int nilfs_segctor_begin_construction(struct nilfs_sc_info *sci, in nilfs_segctor_begin_construction() argument
1285 segbuf = nilfs_segbuf_new(sci->sc_super); in nilfs_segctor_begin_construction()
1289 if (list_empty(&sci->sc_write_logs)) { in nilfs_segctor_begin_construction()
1305 prev = NILFS_LAST_SEGBUF(&sci->sc_write_logs); in nilfs_segctor_begin_construction()
1328 BUG_ON(!list_empty(&sci->sc_segbufs)); in nilfs_segctor_begin_construction()
1329 list_add_tail(&segbuf->sb_list, &sci->sc_segbufs); in nilfs_segctor_begin_construction()
1330 sci->sc_segbuf_nblocks = segbuf->sb_rest_blocks; in nilfs_segctor_begin_construction()
1338 static int nilfs_segctor_extend_segments(struct nilfs_sc_info *sci, in nilfs_segctor_extend_segments() argument
1347 prev = NILFS_LAST_SEGBUF(&sci->sc_segbufs); in nilfs_segctor_extend_segments()
1361 segbuf = nilfs_segbuf_new(sci->sc_super); in nilfs_segctor_extend_segments()
1367 sci->sc_segbuf_nblocks += segbuf->sb_rest_blocks; in nilfs_segctor_extend_segments()
1380 list_splice_tail(&list, &sci->sc_segbufs); in nilfs_segctor_extend_segments()
1431 static void nilfs_segctor_update_segusage(struct nilfs_sc_info *sci, in nilfs_segctor_update_segusage() argument
1438 list_for_each_entry(segbuf, &sci->sc_segbufs, sb_list) { in nilfs_segctor_update_segusage()
1443 sci->sc_seg_ctime); in nilfs_segctor_update_segusage()
1466 static void nilfs_segctor_truncate_segments(struct nilfs_sc_info *sci, in nilfs_segctor_truncate_segments() argument
1473 list_for_each_entry_continue(segbuf, &sci->sc_segbufs, sb_list) { in nilfs_segctor_truncate_segments()
1474 sci->sc_segbuf_nblocks -= segbuf->sb_rest_blocks; in nilfs_segctor_truncate_segments()
1478 nilfs_truncate_logs(&sci->sc_segbufs, last); in nilfs_segctor_truncate_segments()
1482 static int nilfs_segctor_collect(struct nilfs_sc_info *sci, in nilfs_segctor_collect() argument
1485 struct nilfs_cstage prev_stage = sci->sc_stage; in nilfs_segctor_collect()
1490 sci->sc_nblk_this_inc = 0; in nilfs_segctor_collect()
1491 sci->sc_curseg = NILFS_FIRST_SEGBUF(&sci->sc_segbufs); in nilfs_segctor_collect()
1493 err = nilfs_segctor_reset_segment_buffer(sci); in nilfs_segctor_collect()
1497 err = nilfs_segctor_collect_blocks(sci, mode); in nilfs_segctor_collect()
1498 sci->sc_nblk_this_inc += sci->sc_curseg->sb_sum.nblocks; in nilfs_segctor_collect()
1507 nilfs_sc_cstage_get(sci) < NILFS_ST_CPFILE) in nilfs_segctor_collect()
1510 nilfs_clear_logs(&sci->sc_segbufs); in nilfs_segctor_collect()
1512 if (sci->sc_stage.flags & NILFS_CF_SUFREED) { in nilfs_segctor_collect()
1514 sci->sc_freesegs, in nilfs_segctor_collect()
1515 sci->sc_nfreesegs, in nilfs_segctor_collect()
1518 sci->sc_stage.flags &= ~NILFS_CF_SUFREED; in nilfs_segctor_collect()
1521 err = nilfs_segctor_extend_segments(sci, nilfs, nadd); in nilfs_segctor_collect()
1526 sci->sc_stage = prev_stage; in nilfs_segctor_collect()
1528 nilfs_segctor_truncate_segments(sci, sci->sc_curseg, nilfs->ns_sufile); in nilfs_segctor_collect()
1545 nilfs_segctor_update_payload_blocknr(struct nilfs_sc_info *sci, in nilfs_segctor_update_payload_blocknr() argument
1573 sci, &ssp, sizeof(*finfo)); in nilfs_segctor_update_payload_blocknr()
1598 sc_op->write_data_binfo(sci, &ssp, &binfo); in nilfs_segctor_update_payload_blocknr()
1600 sc_op->write_node_binfo(sci, &ssp, &binfo); in nilfs_segctor_update_payload_blocknr()
1617 static int nilfs_segctor_assign(struct nilfs_sc_info *sci, int mode) in nilfs_segctor_assign() argument
1622 list_for_each_entry(segbuf, &sci->sc_segbufs, sb_list) { in nilfs_segctor_assign()
1623 err = nilfs_segctor_update_payload_blocknr(sci, segbuf, mode); in nilfs_segctor_assign()
1644 static void nilfs_segctor_prepare_write(struct nilfs_sc_info *sci) in nilfs_segctor_prepare_write() argument
1649 list_for_each_entry(segbuf, &sci->sc_segbufs, sb_list) { in nilfs_segctor_prepare_write()
1693 static int nilfs_segctor_write(struct nilfs_sc_info *sci, in nilfs_segctor_write() argument
1698 ret = nilfs_write_logs(&sci->sc_segbufs, nilfs); in nilfs_segctor_write()
1699 list_splice_tail_init(&sci->sc_segbufs, &sci->sc_write_logs); in nilfs_segctor_write()
1782 static void nilfs_segctor_abort_construction(struct nilfs_sc_info *sci, in nilfs_segctor_abort_construction() argument
1788 list_splice_tail_init(&sci->sc_write_logs, &logs); in nilfs_segctor_abort_construction()
1792 list_splice_tail_init(&sci->sc_segbufs, &logs); in nilfs_segctor_abort_construction()
1796 if (sci->sc_stage.flags & NILFS_CF_SUFREED) { in nilfs_segctor_abort_construction()
1798 sci->sc_freesegs, in nilfs_segctor_abort_construction()
1799 sci->sc_nfreesegs, in nilfs_segctor_abort_construction()
1818 static void nilfs_segctor_complete_write(struct nilfs_sc_info *sci) in nilfs_segctor_complete_write() argument
1822 struct the_nilfs *nilfs = sci->sc_super->s_fs_info; in nilfs_segctor_complete_write()
1825 list_for_each_entry(segbuf, &sci->sc_write_logs, sb_list) { in nilfs_segctor_complete_write()
1874 set_bit(NILFS_SC_UNCLOSED, &sci->sc_flags); in nilfs_segctor_complete_write()
1875 sci->sc_lseg_stime = jiffies; in nilfs_segctor_complete_write()
1878 clear_bit(NILFS_SC_UNCLOSED, &sci->sc_flags); in nilfs_segctor_complete_write()
1890 nilfs_drop_collected_inodes(&sci->sc_dirty_files); in nilfs_segctor_complete_write()
1893 nilfs_drop_collected_inodes(&sci->sc_gc_inodes); in nilfs_segctor_complete_write()
1895 nilfs->ns_nongc_ctime = sci->sc_seg_ctime; in nilfs_segctor_complete_write()
1897 sci->sc_nblk_inc += sci->sc_nblk_this_inc; in nilfs_segctor_complete_write()
1899 segbuf = NILFS_LAST_SEGBUF(&sci->sc_write_logs); in nilfs_segctor_complete_write()
1907 clear_bit(NILFS_SC_HAVE_DELTA, &sci->sc_flags); in nilfs_segctor_complete_write()
1908 clear_bit(NILFS_SC_DIRTY, &sci->sc_flags); in nilfs_segctor_complete_write()
1909 set_bit(NILFS_SC_SUPER_ROOT, &sci->sc_flags); in nilfs_segctor_complete_write()
1910 nilfs_segctor_clear_metadata_dirty(sci); in nilfs_segctor_complete_write()
1912 clear_bit(NILFS_SC_SUPER_ROOT, &sci->sc_flags); in nilfs_segctor_complete_write()
1915 static int nilfs_segctor_wait(struct nilfs_sc_info *sci) in nilfs_segctor_wait() argument
1919 ret = nilfs_wait_on_logs(&sci->sc_write_logs); in nilfs_segctor_wait()
1921 nilfs_segctor_complete_write(sci); in nilfs_segctor_wait()
1922 nilfs_destroy_logs(&sci->sc_write_logs); in nilfs_segctor_wait()
1927 static int nilfs_segctor_collect_dirty_files(struct nilfs_sc_info *sci, in nilfs_segctor_collect_dirty_files() argument
1931 struct inode *ifile = sci->sc_root->ifile; in nilfs_segctor_collect_dirty_files()
1944 nilfs_warning(sci->sc_super, __func__, in nilfs_segctor_collect_dirty_files()
1960 list_move_tail(&ii->i_dirty, &sci->sc_dirty_files); in nilfs_segctor_collect_dirty_files()
1967 static void nilfs_segctor_drop_written_files(struct nilfs_sc_info *sci, in nilfs_segctor_drop_written_files() argument
1971 int during_mount = !(sci->sc_super->s_flags & MS_ACTIVE); in nilfs_segctor_drop_written_files()
1975 list_for_each_entry_safe(ii, n, &sci->sc_dirty_files, i_dirty) { in nilfs_segctor_drop_written_files()
1989 list_add_tail(&ii->i_dirty, &sci->sc_iput_queue); in nilfs_segctor_drop_written_files()
2000 schedule_work(&sci->sc_iput_work); in nilfs_segctor_drop_written_files()
2006 static int nilfs_segctor_do_construct(struct nilfs_sc_info *sci, int mode) in nilfs_segctor_do_construct() argument
2008 struct the_nilfs *nilfs = sci->sc_super->s_fs_info; in nilfs_segctor_do_construct()
2011 nilfs_sc_cstage_set(sci, NILFS_ST_INIT); in nilfs_segctor_do_construct()
2012 sci->sc_cno = nilfs->ns_cno; in nilfs_segctor_do_construct()
2014 err = nilfs_segctor_collect_dirty_files(sci, nilfs); in nilfs_segctor_do_construct()
2018 if (nilfs_test_metadata_dirty(nilfs, sci->sc_root)) in nilfs_segctor_do_construct()
2019 set_bit(NILFS_SC_DIRTY, &sci->sc_flags); in nilfs_segctor_do_construct()
2021 if (nilfs_segctor_clean(sci)) in nilfs_segctor_do_construct()
2025 sci->sc_stage.flags &= ~NILFS_CF_HISTORY_MASK; in nilfs_segctor_do_construct()
2027 err = nilfs_segctor_begin_construction(sci, nilfs); in nilfs_segctor_do_construct()
2032 sci->sc_seg_ctime = get_seconds(); in nilfs_segctor_do_construct()
2034 err = nilfs_segctor_collect(sci, nilfs, mode); in nilfs_segctor_do_construct()
2039 if (nilfs_sc_cstage_get(sci) == NILFS_ST_DONE && in nilfs_segctor_do_construct()
2040 nilfs_segbuf_empty(sci->sc_curseg)) { in nilfs_segctor_do_construct()
2041 nilfs_segctor_abort_construction(sci, nilfs, 1); in nilfs_segctor_do_construct()
2045 err = nilfs_segctor_assign(sci, mode); in nilfs_segctor_do_construct()
2049 if (sci->sc_stage.flags & NILFS_CF_IFILE_STARTED) in nilfs_segctor_do_construct()
2050 nilfs_segctor_fill_in_file_bmap(sci); in nilfs_segctor_do_construct()
2053 nilfs_sc_cstage_get(sci) >= NILFS_ST_CPFILE) { in nilfs_segctor_do_construct()
2054 err = nilfs_segctor_fill_in_checkpoint(sci); in nilfs_segctor_do_construct()
2058 nilfs_segctor_fill_in_super_root(sci, nilfs); in nilfs_segctor_do_construct()
2060 nilfs_segctor_update_segusage(sci, nilfs->ns_sufile); in nilfs_segctor_do_construct()
2063 nilfs_segctor_prepare_write(sci); in nilfs_segctor_do_construct()
2065 nilfs_add_checksums_on_logs(&sci->sc_segbufs, in nilfs_segctor_do_construct()
2068 err = nilfs_segctor_write(sci, nilfs); in nilfs_segctor_do_construct()
2072 if (nilfs_sc_cstage_get(sci) == NILFS_ST_DONE || in nilfs_segctor_do_construct()
2081 err = nilfs_segctor_wait(sci); in nilfs_segctor_do_construct()
2085 } while (nilfs_sc_cstage_get(sci) != NILFS_ST_DONE); in nilfs_segctor_do_construct()
2088 nilfs_segctor_drop_written_files(sci, nilfs); in nilfs_segctor_do_construct()
2092 if (sci->sc_stage.flags & NILFS_CF_IFILE_STARTED) in nilfs_segctor_do_construct()
2093 nilfs_redirty_inodes(&sci->sc_dirty_files); in nilfs_segctor_do_construct()
2097 nilfs_redirty_inodes(&sci->sc_gc_inodes); in nilfs_segctor_do_construct()
2098 nilfs_segctor_abort_construction(sci, nilfs, err); in nilfs_segctor_do_construct()
2110 static void nilfs_segctor_start_timer(struct nilfs_sc_info *sci) in nilfs_segctor_start_timer() argument
2112 spin_lock(&sci->sc_state_lock); in nilfs_segctor_start_timer()
2113 if (!(sci->sc_state & NILFS_SEGCTOR_COMMIT)) { in nilfs_segctor_start_timer()
2114 sci->sc_timer.expires = jiffies + sci->sc_interval; in nilfs_segctor_start_timer()
2115 add_timer(&sci->sc_timer); in nilfs_segctor_start_timer()
2116 sci->sc_state |= NILFS_SEGCTOR_COMMIT; in nilfs_segctor_start_timer()
2118 spin_unlock(&sci->sc_state_lock); in nilfs_segctor_start_timer()
2121 static void nilfs_segctor_do_flush(struct nilfs_sc_info *sci, int bn) in nilfs_segctor_do_flush() argument
2123 spin_lock(&sci->sc_state_lock); in nilfs_segctor_do_flush()
2124 if (!(sci->sc_flush_request & (1 << bn))) { in nilfs_segctor_do_flush()
2125 unsigned long prev_req = sci->sc_flush_request; in nilfs_segctor_do_flush()
2127 sci->sc_flush_request |= (1 << bn); in nilfs_segctor_do_flush()
2129 wake_up(&sci->sc_wait_daemon); in nilfs_segctor_do_flush()
2131 spin_unlock(&sci->sc_state_lock); in nilfs_segctor_do_flush()
2142 struct nilfs_sc_info *sci = nilfs->ns_writer; in nilfs_flush_segment() local
2144 if (!sci || nilfs_doing_construction()) in nilfs_flush_segment()
2146 nilfs_segctor_do_flush(sci, NILFS_MDT_INODE(sb, ino) ? ino : 0); in nilfs_flush_segment()
2157 static int nilfs_segctor_sync(struct nilfs_sc_info *sci) in nilfs_segctor_sync() argument
2162 spin_lock(&sci->sc_state_lock); in nilfs_segctor_sync()
2166 wait_req.seq = ++sci->sc_seq_request; in nilfs_segctor_sync()
2167 spin_unlock(&sci->sc_state_lock); in nilfs_segctor_sync()
2170 add_wait_queue(&sci->sc_wait_request, &wait_req.wq); in nilfs_segctor_sync()
2172 wake_up(&sci->sc_wait_daemon); in nilfs_segctor_sync()
2186 finish_wait(&sci->sc_wait_request, &wait_req.wq); in nilfs_segctor_sync()
2190 static void nilfs_segctor_wakeup(struct nilfs_sc_info *sci, int err) in nilfs_segctor_wakeup() argument
2195 spin_lock_irqsave(&sci->sc_wait_request.lock, flags); in nilfs_segctor_wakeup()
2196 list_for_each_entry_safe(wrq, n, &sci->sc_wait_request.task_list, in nilfs_segctor_wakeup()
2199 nilfs_cnt32_ge(sci->sc_seq_done, wrq->seq)) { in nilfs_segctor_wakeup()
2209 spin_unlock_irqrestore(&sci->sc_wait_request.lock, flags); in nilfs_segctor_wakeup()
2232 struct nilfs_sc_info *sci = nilfs->ns_writer; in nilfs_construct_segment() local
2236 if (!sci) in nilfs_construct_segment()
2242 err = nilfs_segctor_sync(sci); in nilfs_construct_segment()
2270 struct nilfs_sc_info *sci = nilfs->ns_writer; in nilfs_construct_dsync_segment() local
2275 if (!sci) in nilfs_construct_dsync_segment()
2283 test_bit(NILFS_SC_UNCLOSED, &sci->sc_flags) || in nilfs_construct_dsync_segment()
2286 err = nilfs_segctor_sync(sci); in nilfs_construct_dsync_segment()
2298 sci->sc_dsync_inode = ii; in nilfs_construct_dsync_segment()
2299 sci->sc_dsync_start = start; in nilfs_construct_dsync_segment()
2300 sci->sc_dsync_end = end; in nilfs_construct_dsync_segment()
2302 err = nilfs_segctor_do_construct(sci, SC_LSEG_DSYNC); in nilfs_construct_dsync_segment()
2317 static void nilfs_segctor_accept(struct nilfs_sc_info *sci) in nilfs_segctor_accept() argument
2319 spin_lock(&sci->sc_state_lock); in nilfs_segctor_accept()
2320 sci->sc_seq_accepted = sci->sc_seq_request; in nilfs_segctor_accept()
2321 spin_unlock(&sci->sc_state_lock); in nilfs_segctor_accept()
2322 del_timer_sync(&sci->sc_timer); in nilfs_segctor_accept()
2331 static void nilfs_segctor_notify(struct nilfs_sc_info *sci, int mode, int err) in nilfs_segctor_notify() argument
2334 spin_lock(&sci->sc_state_lock); in nilfs_segctor_notify()
2337 sci->sc_state &= ~NILFS_SEGCTOR_COMMIT; in nilfs_segctor_notify()
2338 sci->sc_seq_done = sci->sc_seq_accepted; in nilfs_segctor_notify()
2339 nilfs_segctor_wakeup(sci, err); in nilfs_segctor_notify()
2340 sci->sc_flush_request = 0; in nilfs_segctor_notify()
2343 sci->sc_flush_request &= ~FLUSH_FILE_BIT; in nilfs_segctor_notify()
2345 sci->sc_flush_request &= ~FLUSH_DAT_BIT; in nilfs_segctor_notify()
2348 if ((sci->sc_state & NILFS_SEGCTOR_COMMIT) && in nilfs_segctor_notify()
2349 time_before(jiffies, sci->sc_timer.expires)) in nilfs_segctor_notify()
2350 add_timer(&sci->sc_timer); in nilfs_segctor_notify()
2352 spin_unlock(&sci->sc_state_lock); in nilfs_segctor_notify()
2360 static int nilfs_segctor_construct(struct nilfs_sc_info *sci, int mode) in nilfs_segctor_construct() argument
2362 struct the_nilfs *nilfs = sci->sc_super->s_fs_info; in nilfs_segctor_construct()
2366 nilfs_segctor_accept(sci); in nilfs_segctor_construct()
2370 if (!nilfs_segctor_confirm(sci)) in nilfs_segctor_construct()
2371 err = nilfs_segctor_do_construct(sci, mode); in nilfs_segctor_construct()
2376 if (test_bit(NILFS_SC_SUPER_ROOT, &sci->sc_flags) && in nilfs_segctor_construct()
2380 sbp = nilfs_prepare_super(sci->sc_super, in nilfs_segctor_construct()
2384 err = nilfs_commit_super(sci->sc_super, in nilfs_segctor_construct()
2391 nilfs_segctor_notify(sci, mode, err); in nilfs_segctor_construct()
2420 struct nilfs_sc_info *sci = nilfs->ns_writer; in nilfs_clean_segments() local
2424 if (unlikely(!sci)) in nilfs_clean_segments()
2439 sci->sc_freesegs = kbufs[4]; in nilfs_clean_segments()
2440 sci->sc_nfreesegs = argv[4].v_nmembs; in nilfs_clean_segments()
2441 list_splice_tail_init(&nilfs->ns_gc_inodes, &sci->sc_gc_inodes); in nilfs_clean_segments()
2444 err = nilfs_segctor_construct(sci, SC_LSEG_SR); in nilfs_clean_segments()
2445 nilfs_remove_written_gcinodes(nilfs, &sci->sc_gc_inodes); in nilfs_clean_segments()
2453 schedule_timeout(sci->sc_interval); in nilfs_clean_segments()
2456 int ret = nilfs_discard_segments(nilfs, sci->sc_freesegs, in nilfs_clean_segments()
2457 sci->sc_nfreesegs); in nilfs_clean_segments()
2467 sci->sc_freesegs = NULL; in nilfs_clean_segments()
2468 sci->sc_nfreesegs = 0; in nilfs_clean_segments()
2474 static void nilfs_segctor_thread_construct(struct nilfs_sc_info *sci, int mode) in nilfs_segctor_thread_construct() argument
2478 nilfs_transaction_lock(sci->sc_super, &ti, 0); in nilfs_segctor_thread_construct()
2479 nilfs_segctor_construct(sci, mode); in nilfs_segctor_thread_construct()
2486 if (test_bit(NILFS_SC_UNCLOSED, &sci->sc_flags)) in nilfs_segctor_thread_construct()
2487 nilfs_segctor_start_timer(sci); in nilfs_segctor_thread_construct()
2489 nilfs_transaction_unlock(sci->sc_super); in nilfs_segctor_thread_construct()
2492 static void nilfs_segctor_do_immediate_flush(struct nilfs_sc_info *sci) in nilfs_segctor_do_immediate_flush() argument
2496 spin_lock(&sci->sc_state_lock); in nilfs_segctor_do_immediate_flush()
2497 mode = (sci->sc_flush_request & FLUSH_DAT_BIT) ? in nilfs_segctor_do_immediate_flush()
2499 spin_unlock(&sci->sc_state_lock); in nilfs_segctor_do_immediate_flush()
2502 nilfs_segctor_do_construct(sci, mode); in nilfs_segctor_do_immediate_flush()
2504 spin_lock(&sci->sc_state_lock); in nilfs_segctor_do_immediate_flush()
2505 sci->sc_flush_request &= (mode == SC_FLUSH_FILE) ? in nilfs_segctor_do_immediate_flush()
2507 spin_unlock(&sci->sc_state_lock); in nilfs_segctor_do_immediate_flush()
2509 clear_bit(NILFS_SC_PRIOR_FLUSH, &sci->sc_flags); in nilfs_segctor_do_immediate_flush()
2512 static int nilfs_segctor_flush_mode(struct nilfs_sc_info *sci) in nilfs_segctor_flush_mode() argument
2514 if (!test_bit(NILFS_SC_UNCLOSED, &sci->sc_flags) || in nilfs_segctor_flush_mode()
2515 time_before(jiffies, sci->sc_lseg_stime + sci->sc_mjcp_freq)) { in nilfs_segctor_flush_mode()
2516 if (!(sci->sc_flush_request & ~FLUSH_FILE_BIT)) in nilfs_segctor_flush_mode()
2518 else if (!(sci->sc_flush_request & ~FLUSH_DAT_BIT)) in nilfs_segctor_flush_mode()
2533 struct nilfs_sc_info *sci = (struct nilfs_sc_info *)arg; in nilfs_segctor_thread() local
2534 struct the_nilfs *nilfs = sci->sc_super->s_fs_info; in nilfs_segctor_thread()
2537 sci->sc_timer.data = (unsigned long)current; in nilfs_segctor_thread()
2538 sci->sc_timer.function = nilfs_construction_timeout; in nilfs_segctor_thread()
2541 sci->sc_task = current; in nilfs_segctor_thread()
2542 wake_up(&sci->sc_wait_task); /* for nilfs_segctor_start_thread() */ in nilfs_segctor_thread()
2546 sci->sc_interval / HZ, sci->sc_mjcp_freq / HZ); in nilfs_segctor_thread()
2548 spin_lock(&sci->sc_state_lock); in nilfs_segctor_thread()
2553 if (sci->sc_state & NILFS_SEGCTOR_QUIT) in nilfs_segctor_thread()
2556 if (timeout || sci->sc_seq_request != sci->sc_seq_done) in nilfs_segctor_thread()
2558 else if (!sci->sc_flush_request) in nilfs_segctor_thread()
2561 mode = nilfs_segctor_flush_mode(sci); in nilfs_segctor_thread()
2563 spin_unlock(&sci->sc_state_lock); in nilfs_segctor_thread()
2564 nilfs_segctor_thread_construct(sci, mode); in nilfs_segctor_thread()
2565 spin_lock(&sci->sc_state_lock); in nilfs_segctor_thread()
2571 spin_unlock(&sci->sc_state_lock); in nilfs_segctor_thread()
2573 spin_lock(&sci->sc_state_lock); in nilfs_segctor_thread()
2578 prepare_to_wait(&sci->sc_wait_daemon, &wait, in nilfs_segctor_thread()
2581 if (sci->sc_seq_request != sci->sc_seq_done) in nilfs_segctor_thread()
2583 else if (sci->sc_flush_request) in nilfs_segctor_thread()
2585 else if (sci->sc_state & NILFS_SEGCTOR_COMMIT) in nilfs_segctor_thread()
2587 sci->sc_timer.expires); in nilfs_segctor_thread()
2590 spin_unlock(&sci->sc_state_lock); in nilfs_segctor_thread()
2592 spin_lock(&sci->sc_state_lock); in nilfs_segctor_thread()
2594 finish_wait(&sci->sc_wait_daemon, &wait); in nilfs_segctor_thread()
2595 timeout = ((sci->sc_state & NILFS_SEGCTOR_COMMIT) && in nilfs_segctor_thread()
2596 time_after_eq(jiffies, sci->sc_timer.expires)); in nilfs_segctor_thread()
2604 spin_unlock(&sci->sc_state_lock); in nilfs_segctor_thread()
2607 sci->sc_task = NULL; in nilfs_segctor_thread()
2608 wake_up(&sci->sc_wait_task); /* for nilfs_segctor_kill_thread() */ in nilfs_segctor_thread()
2612 static int nilfs_segctor_start_thread(struct nilfs_sc_info *sci) in nilfs_segctor_start_thread() argument
2616 t = kthread_run(nilfs_segctor_thread, sci, "segctord"); in nilfs_segctor_start_thread()
2624 wait_event(sci->sc_wait_task, sci->sc_task != NULL); in nilfs_segctor_start_thread()
2628 static void nilfs_segctor_kill_thread(struct nilfs_sc_info *sci) in nilfs_segctor_kill_thread() argument
2629 __acquires(&sci->sc_state_lock) in nilfs_segctor_kill_thread()
2630 __releases(&sci->sc_state_lock) in nilfs_segctor_kill_thread()
2632 sci->sc_state |= NILFS_SEGCTOR_QUIT; in nilfs_segctor_kill_thread()
2634 while (sci->sc_task) { in nilfs_segctor_kill_thread()
2635 wake_up(&sci->sc_wait_daemon); in nilfs_segctor_kill_thread()
2636 spin_unlock(&sci->sc_state_lock); in nilfs_segctor_kill_thread()
2637 wait_event(sci->sc_wait_task, sci->sc_task == NULL); in nilfs_segctor_kill_thread()
2638 spin_lock(&sci->sc_state_lock); in nilfs_segctor_kill_thread()
2649 struct nilfs_sc_info *sci; in nilfs_segctor_new() local
2651 sci = kzalloc(sizeof(*sci), GFP_KERNEL); in nilfs_segctor_new()
2652 if (!sci) in nilfs_segctor_new()
2655 sci->sc_super = sb; in nilfs_segctor_new()
2658 sci->sc_root = root; in nilfs_segctor_new()
2660 init_waitqueue_head(&sci->sc_wait_request); in nilfs_segctor_new()
2661 init_waitqueue_head(&sci->sc_wait_daemon); in nilfs_segctor_new()
2662 init_waitqueue_head(&sci->sc_wait_task); in nilfs_segctor_new()
2663 spin_lock_init(&sci->sc_state_lock); in nilfs_segctor_new()
2664 INIT_LIST_HEAD(&sci->sc_dirty_files); in nilfs_segctor_new()
2665 INIT_LIST_HEAD(&sci->sc_segbufs); in nilfs_segctor_new()
2666 INIT_LIST_HEAD(&sci->sc_write_logs); in nilfs_segctor_new()
2667 INIT_LIST_HEAD(&sci->sc_gc_inodes); in nilfs_segctor_new()
2668 INIT_LIST_HEAD(&sci->sc_iput_queue); in nilfs_segctor_new()
2669 INIT_WORK(&sci->sc_iput_work, nilfs_iput_work_func); in nilfs_segctor_new()
2670 init_timer(&sci->sc_timer); in nilfs_segctor_new()
2672 sci->sc_interval = HZ * NILFS_SC_DEFAULT_TIMEOUT; in nilfs_segctor_new()
2673 sci->sc_mjcp_freq = HZ * NILFS_SC_DEFAULT_SR_FREQ; in nilfs_segctor_new()
2674 sci->sc_watermark = NILFS_SC_DEFAULT_WATERMARK; in nilfs_segctor_new()
2677 sci->sc_interval = HZ * nilfs->ns_interval; in nilfs_segctor_new()
2679 sci->sc_watermark = nilfs->ns_watermark; in nilfs_segctor_new()
2680 return sci; in nilfs_segctor_new()
2683 static void nilfs_segctor_write_out(struct nilfs_sc_info *sci) in nilfs_segctor_write_out() argument
2692 nilfs_transaction_lock(sci->sc_super, &ti, 0); in nilfs_segctor_write_out()
2693 ret = nilfs_segctor_construct(sci, SC_LSEG_SR); in nilfs_segctor_write_out()
2694 nilfs_transaction_unlock(sci->sc_super); in nilfs_segctor_write_out()
2696 flush_work(&sci->sc_iput_work); in nilfs_segctor_write_out()
2709 static void nilfs_segctor_destroy(struct nilfs_sc_info *sci) in nilfs_segctor_destroy() argument
2711 struct the_nilfs *nilfs = sci->sc_super->s_fs_info; in nilfs_segctor_destroy()
2716 spin_lock(&sci->sc_state_lock); in nilfs_segctor_destroy()
2717 nilfs_segctor_kill_thread(sci); in nilfs_segctor_destroy()
2718 flag = ((sci->sc_state & NILFS_SEGCTOR_COMMIT) || sci->sc_flush_request in nilfs_segctor_destroy()
2719 || sci->sc_seq_request != sci->sc_seq_done); in nilfs_segctor_destroy()
2720 spin_unlock(&sci->sc_state_lock); in nilfs_segctor_destroy()
2722 if (flush_work(&sci->sc_iput_work)) in nilfs_segctor_destroy()
2725 if (flag || !nilfs_segctor_confirm(sci)) in nilfs_segctor_destroy()
2726 nilfs_segctor_write_out(sci); in nilfs_segctor_destroy()
2728 if (!list_empty(&sci->sc_dirty_files)) { in nilfs_segctor_destroy()
2729 nilfs_warning(sci->sc_super, __func__, in nilfs_segctor_destroy()
2731 nilfs_dispose_list(nilfs, &sci->sc_dirty_files, 1); in nilfs_segctor_destroy()
2734 if (!list_empty(&sci->sc_iput_queue)) { in nilfs_segctor_destroy()
2735 nilfs_warning(sci->sc_super, __func__, in nilfs_segctor_destroy()
2737 nilfs_dispose_list(nilfs, &sci->sc_iput_queue, 1); in nilfs_segctor_destroy()
2740 WARN_ON(!list_empty(&sci->sc_segbufs)); in nilfs_segctor_destroy()
2741 WARN_ON(!list_empty(&sci->sc_write_logs)); in nilfs_segctor_destroy()
2743 nilfs_put_root(sci->sc_root); in nilfs_segctor_destroy()
2747 del_timer_sync(&sci->sc_timer); in nilfs_segctor_destroy()
2748 kfree(sci); in nilfs_segctor_destroy()