1b3b94faaSDavid Teigland /* 2b3b94faaSDavid Teigland * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. 3b3b94faaSDavid Teigland * Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved. 4b3b94faaSDavid Teigland * 5b3b94faaSDavid Teigland * This copyrighted material is made available to anyone wishing to use, 6b3b94faaSDavid Teigland * modify, copy, or redistribute it subject to the terms and conditions 7b3b94faaSDavid Teigland * of the GNU General Public License v.2. 8b3b94faaSDavid Teigland */ 9b3b94faaSDavid Teigland 10b3b94faaSDavid Teigland #include <linux/sched.h> 11b3b94faaSDavid Teigland #include <linux/slab.h> 12b3b94faaSDavid Teigland #include <linux/spinlock.h> 13b3b94faaSDavid Teigland #include <linux/completion.h> 14b3b94faaSDavid Teigland #include <linux/buffer_head.h> 15b3b94faaSDavid Teigland #include <asm/semaphore.h> 16b3b94faaSDavid Teigland 17b3b94faaSDavid Teigland #include "gfs2.h" 18b3b94faaSDavid Teigland #include "glock.h" 19b3b94faaSDavid Teigland #include "log.h" 20b3b94faaSDavid Teigland #include "lops.h" 21b3b94faaSDavid Teigland #include "meta_io.h" 22b3b94faaSDavid Teigland #include "recovery.h" 23b3b94faaSDavid Teigland #include "rgrp.h" 24b3b94faaSDavid Teigland #include "trans.h" 25b3b94faaSDavid Teigland 26b3b94faaSDavid Teigland static void glock_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 27b3b94faaSDavid Teigland { 28b3b94faaSDavid Teigland struct gfs2_glock *gl; 29b3b94faaSDavid Teigland 30b3b94faaSDavid Teigland get_transaction->tr_touched = 1; 31b3b94faaSDavid Teigland 32b3b94faaSDavid Teigland if (!list_empty(&le->le_list)) 33b3b94faaSDavid Teigland return; 34b3b94faaSDavid Teigland 35b3b94faaSDavid Teigland gl = container_of(le, struct gfs2_glock, gl_le); 36b3b94faaSDavid Teigland if (gfs2_assert_withdraw(sdp, gfs2_glock_is_held_excl(gl))) 37b3b94faaSDavid Teigland return; 38b3b94faaSDavid Teigland gfs2_glock_hold(gl); 39b3b94faaSDavid Teigland set_bit(GLF_DIRTY, &gl->gl_flags); 40b3b94faaSDavid Teigland 41b3b94faaSDavid Teigland gfs2_log_lock(sdp); 42b3b94faaSDavid Teigland sdp->sd_log_num_gl++; 43b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_gl); 44b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 45b3b94faaSDavid Teigland } 46b3b94faaSDavid Teigland 47b3b94faaSDavid Teigland static void glock_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) 48b3b94faaSDavid Teigland { 49b3b94faaSDavid Teigland struct list_head *head = &sdp->sd_log_le_gl; 50b3b94faaSDavid Teigland struct gfs2_glock *gl; 51b3b94faaSDavid Teigland 52b3b94faaSDavid Teigland while (!list_empty(head)) { 53b3b94faaSDavid Teigland gl = list_entry(head->next, struct gfs2_glock, gl_le.le_list); 54b3b94faaSDavid Teigland list_del_init(&gl->gl_le.le_list); 55b3b94faaSDavid Teigland sdp->sd_log_num_gl--; 56b3b94faaSDavid Teigland 57b3b94faaSDavid Teigland gfs2_assert_withdraw(sdp, gfs2_glock_is_held_excl(gl)); 58b3b94faaSDavid Teigland gfs2_glock_put(gl); 59b3b94faaSDavid Teigland } 60b3b94faaSDavid Teigland gfs2_assert_warn(sdp, !sdp->sd_log_num_gl); 61b3b94faaSDavid Teigland } 62b3b94faaSDavid Teigland 63b3b94faaSDavid Teigland static void buf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 64b3b94faaSDavid Teigland { 65b3b94faaSDavid Teigland struct gfs2_bufdata *bd = container_of(le, struct gfs2_bufdata, bd_le); 66b3b94faaSDavid Teigland struct gfs2_trans *tr; 67b3b94faaSDavid Teigland 68b3b94faaSDavid Teigland if (!list_empty(&bd->bd_list_tr)) 69b3b94faaSDavid Teigland return; 70b3b94faaSDavid Teigland 71b3b94faaSDavid Teigland tr = get_transaction; 72b3b94faaSDavid Teigland tr->tr_touched = 1; 73b3b94faaSDavid Teigland tr->tr_num_buf++; 74b3b94faaSDavid Teigland list_add(&bd->bd_list_tr, &tr->tr_list_buf); 75b3b94faaSDavid Teigland 76b3b94faaSDavid Teigland if (!list_empty(&le->le_list)) 77b3b94faaSDavid Teigland return; 78b3b94faaSDavid Teigland 79b3b94faaSDavid Teigland gfs2_trans_add_gl(bd->bd_gl); 80b3b94faaSDavid Teigland 81b3b94faaSDavid Teigland gfs2_meta_check(sdp, bd->bd_bh); 82b3b94faaSDavid Teigland gfs2_meta_pin(sdp, bd->bd_bh); 83b3b94faaSDavid Teigland 84b3b94faaSDavid Teigland gfs2_log_lock(sdp); 85b3b94faaSDavid Teigland sdp->sd_log_num_buf++; 86b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_buf); 87b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 88b3b94faaSDavid Teigland 89b3b94faaSDavid Teigland tr->tr_num_buf_new++; 90b3b94faaSDavid Teigland } 91b3b94faaSDavid Teigland 92b3b94faaSDavid Teigland static void buf_lo_incore_commit(struct gfs2_sbd *sdp, struct gfs2_trans *tr) 93b3b94faaSDavid Teigland { 94b3b94faaSDavid Teigland struct list_head *head = &tr->tr_list_buf; 95b3b94faaSDavid Teigland struct gfs2_bufdata *bd; 96b3b94faaSDavid Teigland 97b3b94faaSDavid Teigland while (!list_empty(head)) { 98b3b94faaSDavid Teigland bd = list_entry(head->next, struct gfs2_bufdata, bd_list_tr); 99b3b94faaSDavid Teigland list_del_init(&bd->bd_list_tr); 100b3b94faaSDavid Teigland tr->tr_num_buf--; 101b3b94faaSDavid Teigland } 102b3b94faaSDavid Teigland gfs2_assert_warn(sdp, !tr->tr_num_buf); 103b3b94faaSDavid Teigland } 104b3b94faaSDavid Teigland 105b3b94faaSDavid Teigland static void buf_lo_before_commit(struct gfs2_sbd *sdp) 106b3b94faaSDavid Teigland { 107b3b94faaSDavid Teigland struct buffer_head *bh; 108b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld; 109b3b94faaSDavid Teigland struct gfs2_bufdata *bd1 = NULL, *bd2; 110b3b94faaSDavid Teigland unsigned int total = sdp->sd_log_num_buf; 111b3b94faaSDavid Teigland unsigned int offset = sizeof(struct gfs2_log_descriptor); 112b3b94faaSDavid Teigland unsigned int limit; 113b3b94faaSDavid Teigland unsigned int num; 114b3b94faaSDavid Teigland unsigned n; 115b3b94faaSDavid Teigland __be64 *ptr; 116b3b94faaSDavid Teigland 117b3b94faaSDavid Teigland offset += (sizeof(__be64) - 1); 118b3b94faaSDavid Teigland offset &= ~(sizeof(__be64) - 1); 119b3b94faaSDavid Teigland limit = (sdp->sd_sb.sb_bsize - offset)/sizeof(__be64); 120b3b94faaSDavid Teigland /* for 4k blocks, limit = 503 */ 121b3b94faaSDavid Teigland 122b3b94faaSDavid Teigland bd1 = bd2 = list_prepare_entry(bd1, &sdp->sd_log_le_buf, bd_le.le_list); 123b3b94faaSDavid Teigland while(total) { 124b3b94faaSDavid Teigland num = total; 125b3b94faaSDavid Teigland if (total > limit) 126b3b94faaSDavid Teigland num = limit; 127b3b94faaSDavid Teigland bh = gfs2_log_get_buf(sdp); 128b3b94faaSDavid Teigland ld = (struct gfs2_log_descriptor *)bh->b_data; 129b3b94faaSDavid Teigland ptr = (__be64 *)(bh->b_data + offset); 130b3b94faaSDavid Teigland ld->ld_header.mh_magic = cpu_to_be32(GFS2_MAGIC); 131b3b94faaSDavid Teigland ld->ld_header.mh_type = cpu_to_be16(GFS2_METATYPE_LD); 132b3b94faaSDavid Teigland ld->ld_header.mh_format = cpu_to_be16(GFS2_FORMAT_LD); 133b3b94faaSDavid Teigland ld->ld_type = cpu_to_be32(GFS2_LOG_DESC_METADATA); 134b3b94faaSDavid Teigland ld->ld_length = cpu_to_be32(num + 1); 135b3b94faaSDavid Teigland ld->ld_data1 = cpu_to_be32(num); 136b3b94faaSDavid Teigland ld->ld_data2 = cpu_to_be32(0); 137b3b94faaSDavid Teigland memset(ld->ld_reserved, 0, sizeof(ld->ld_reserved)); 138b3b94faaSDavid Teigland 139b3b94faaSDavid Teigland n = 0; 140b3b94faaSDavid Teigland list_for_each_entry_continue(bd1, &sdp->sd_log_le_buf, bd_le.le_list) { 141b3b94faaSDavid Teigland *ptr++ = cpu_to_be64(bd1->bd_bh->b_blocknr); 142b3b94faaSDavid Teigland if (++n >= num) 143b3b94faaSDavid Teigland break; 144b3b94faaSDavid Teigland } 145b3b94faaSDavid Teigland 146b3b94faaSDavid Teigland set_buffer_dirty(bh); 147b3b94faaSDavid Teigland ll_rw_block(WRITE, 1, &bh); 148b3b94faaSDavid Teigland 149b3b94faaSDavid Teigland n = 0; 150b3b94faaSDavid Teigland list_for_each_entry_continue(bd2, &sdp->sd_log_le_buf, bd_le.le_list) { 151b3b94faaSDavid Teigland bh = gfs2_log_fake_buf(sdp, bd2->bd_bh); 152b3b94faaSDavid Teigland set_buffer_dirty(bh); 153b3b94faaSDavid Teigland ll_rw_block(WRITE, 1, &bh); 154b3b94faaSDavid Teigland if (++n >= num) 155b3b94faaSDavid Teigland break; 156b3b94faaSDavid Teigland } 157b3b94faaSDavid Teigland 158b3b94faaSDavid Teigland total -= num; 159b3b94faaSDavid Teigland } 160b3b94faaSDavid Teigland } 161b3b94faaSDavid Teigland 162b3b94faaSDavid Teigland static void buf_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) 163b3b94faaSDavid Teigland { 164b3b94faaSDavid Teigland struct list_head *head = &sdp->sd_log_le_buf; 165b3b94faaSDavid Teigland struct gfs2_bufdata *bd; 166b3b94faaSDavid Teigland 167b3b94faaSDavid Teigland while (!list_empty(head)) { 168b3b94faaSDavid Teigland bd = list_entry(head->next, struct gfs2_bufdata, bd_le.le_list); 169b3b94faaSDavid Teigland list_del_init(&bd->bd_le.le_list); 170b3b94faaSDavid Teigland sdp->sd_log_num_buf--; 171b3b94faaSDavid Teigland 172b3b94faaSDavid Teigland gfs2_meta_unpin(sdp, bd->bd_bh, ai); 173b3b94faaSDavid Teigland } 174b3b94faaSDavid Teigland gfs2_assert_warn(sdp, !sdp->sd_log_num_buf); 175b3b94faaSDavid Teigland } 176b3b94faaSDavid Teigland 177b3b94faaSDavid Teigland static void buf_lo_before_scan(struct gfs2_jdesc *jd, 178b3b94faaSDavid Teigland struct gfs2_log_header *head, int pass) 179b3b94faaSDavid Teigland { 180b3b94faaSDavid Teigland struct gfs2_sbd *sdp = jd->jd_inode->i_sbd; 181b3b94faaSDavid Teigland 182b3b94faaSDavid Teigland if (pass != 0) 183b3b94faaSDavid Teigland return; 184b3b94faaSDavid Teigland 185b3b94faaSDavid Teigland sdp->sd_found_blocks = 0; 186b3b94faaSDavid Teigland sdp->sd_replayed_blocks = 0; 187b3b94faaSDavid Teigland } 188b3b94faaSDavid Teigland 189b3b94faaSDavid Teigland static int buf_lo_scan_elements(struct gfs2_jdesc *jd, unsigned int start, 190b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld, __be64 *ptr, 191b3b94faaSDavid Teigland int pass) 192b3b94faaSDavid Teigland { 193b3b94faaSDavid Teigland struct gfs2_sbd *sdp = jd->jd_inode->i_sbd; 194b3b94faaSDavid Teigland struct gfs2_glock *gl = jd->jd_inode->i_gl; 195b3b94faaSDavid Teigland unsigned int blks = be32_to_cpu(ld->ld_data1); 196b3b94faaSDavid Teigland struct buffer_head *bh_log, *bh_ip; 197b3b94faaSDavid Teigland uint64_t blkno; 198b3b94faaSDavid Teigland int error = 0; 199b3b94faaSDavid Teigland 200b3b94faaSDavid Teigland if (pass != 1 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_METADATA) 201b3b94faaSDavid Teigland return 0; 202b3b94faaSDavid Teigland 203b3b94faaSDavid Teigland gfs2_replay_incr_blk(sdp, &start); 204b3b94faaSDavid Teigland 205b3b94faaSDavid Teigland for (; blks; gfs2_replay_incr_blk(sdp, &start), blks--) { 206b3b94faaSDavid Teigland blkno = be64_to_cpu(*ptr++); 207b3b94faaSDavid Teigland 208b3b94faaSDavid Teigland sdp->sd_found_blocks++; 209b3b94faaSDavid Teigland 210b3b94faaSDavid Teigland if (gfs2_revoke_check(sdp, blkno, start)) 211b3b94faaSDavid Teigland continue; 212b3b94faaSDavid Teigland 213b3b94faaSDavid Teigland error = gfs2_replay_read_block(jd, start, &bh_log); 214b3b94faaSDavid Teigland if (error) 215b3b94faaSDavid Teigland return error; 216b3b94faaSDavid Teigland 217b3b94faaSDavid Teigland bh_ip = gfs2_meta_new(gl, blkno); 218b3b94faaSDavid Teigland memcpy(bh_ip->b_data, bh_log->b_data, bh_log->b_size); 219b3b94faaSDavid Teigland 220b3b94faaSDavid Teigland if (gfs2_meta_check(sdp, bh_ip)) 221b3b94faaSDavid Teigland error = -EIO; 222b3b94faaSDavid Teigland else 223b3b94faaSDavid Teigland mark_buffer_dirty(bh_ip); 224b3b94faaSDavid Teigland 225b3b94faaSDavid Teigland brelse(bh_log); 226b3b94faaSDavid Teigland brelse(bh_ip); 227b3b94faaSDavid Teigland 228b3b94faaSDavid Teigland if (error) 229b3b94faaSDavid Teigland break; 230b3b94faaSDavid Teigland 231b3b94faaSDavid Teigland sdp->sd_replayed_blocks++; 232b3b94faaSDavid Teigland } 233b3b94faaSDavid Teigland 234b3b94faaSDavid Teigland return error; 235b3b94faaSDavid Teigland } 236b3b94faaSDavid Teigland 237b3b94faaSDavid Teigland static void buf_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass) 238b3b94faaSDavid Teigland { 239b3b94faaSDavid Teigland struct gfs2_sbd *sdp = jd->jd_inode->i_sbd; 240b3b94faaSDavid Teigland 241b3b94faaSDavid Teigland if (error) { 242b3b94faaSDavid Teigland gfs2_meta_sync(jd->jd_inode->i_gl, DIO_START | DIO_WAIT); 243b3b94faaSDavid Teigland return; 244b3b94faaSDavid Teigland } 245b3b94faaSDavid Teigland if (pass != 1) 246b3b94faaSDavid Teigland return; 247b3b94faaSDavid Teigland 248b3b94faaSDavid Teigland gfs2_meta_sync(jd->jd_inode->i_gl, DIO_START | DIO_WAIT); 249b3b94faaSDavid Teigland 250b3b94faaSDavid Teigland fs_info(sdp, "jid=%u: Replayed %u of %u blocks\n", 251b3b94faaSDavid Teigland jd->jd_jid, sdp->sd_replayed_blocks, sdp->sd_found_blocks); 252b3b94faaSDavid Teigland } 253b3b94faaSDavid Teigland 254b3b94faaSDavid Teigland static void revoke_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 255b3b94faaSDavid Teigland { 256b3b94faaSDavid Teigland struct gfs2_trans *tr; 257b3b94faaSDavid Teigland 258b3b94faaSDavid Teigland tr = get_transaction; 259b3b94faaSDavid Teigland tr->tr_touched = 1; 260b3b94faaSDavid Teigland tr->tr_num_revoke++; 261b3b94faaSDavid Teigland 262b3b94faaSDavid Teigland gfs2_log_lock(sdp); 263b3b94faaSDavid Teigland sdp->sd_log_num_revoke++; 264b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_revoke); 265b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 266b3b94faaSDavid Teigland } 267b3b94faaSDavid Teigland 268b3b94faaSDavid Teigland static void revoke_lo_before_commit(struct gfs2_sbd *sdp) 269b3b94faaSDavid Teigland { 270b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld; 271b3b94faaSDavid Teigland struct gfs2_meta_header *mh; 272b3b94faaSDavid Teigland struct buffer_head *bh; 273b3b94faaSDavid Teigland unsigned int offset; 274b3b94faaSDavid Teigland struct list_head *head = &sdp->sd_log_le_revoke; 275b3b94faaSDavid Teigland struct gfs2_revoke *rv; 276b3b94faaSDavid Teigland 277b3b94faaSDavid Teigland if (!sdp->sd_log_num_revoke) 278b3b94faaSDavid Teigland return; 279b3b94faaSDavid Teigland 280b3b94faaSDavid Teigland bh = gfs2_log_get_buf(sdp); 281b3b94faaSDavid Teigland ld = (struct gfs2_log_descriptor *)bh->b_data; 282b3b94faaSDavid Teigland ld->ld_header.mh_magic = cpu_to_be32(GFS2_MAGIC); 283b3b94faaSDavid Teigland ld->ld_header.mh_type = cpu_to_be16(GFS2_METATYPE_LD); 284b3b94faaSDavid Teigland ld->ld_header.mh_format = cpu_to_be16(GFS2_FORMAT_LD); 285b3b94faaSDavid Teigland ld->ld_type = cpu_to_be32(GFS2_LOG_DESC_REVOKE); 286b3b94faaSDavid Teigland ld->ld_length = cpu_to_be32(gfs2_struct2blk(sdp, sdp->sd_log_num_revoke, sizeof(uint64_t))); 287b3b94faaSDavid Teigland ld->ld_data1 = cpu_to_be32(sdp->sd_log_num_revoke); 288b3b94faaSDavid Teigland ld->ld_data2 = cpu_to_be32(0); 289b3b94faaSDavid Teigland memset(ld->ld_reserved, 0, sizeof(ld->ld_reserved)); 290b3b94faaSDavid Teigland offset = sizeof(struct gfs2_log_descriptor); 291b3b94faaSDavid Teigland 292b3b94faaSDavid Teigland while (!list_empty(head)) { 293b3b94faaSDavid Teigland rv = list_entry(head->next, struct gfs2_revoke, rv_le.le_list); 294b3b94faaSDavid Teigland list_del(&rv->rv_le.le_list); 295b3b94faaSDavid Teigland sdp->sd_log_num_revoke--; 296b3b94faaSDavid Teigland 297b3b94faaSDavid Teigland if (offset + sizeof(uint64_t) > sdp->sd_sb.sb_bsize) { 298b3b94faaSDavid Teigland set_buffer_dirty(bh); 299b3b94faaSDavid Teigland ll_rw_block(WRITE, 1, &bh); 300b3b94faaSDavid Teigland 301b3b94faaSDavid Teigland bh = gfs2_log_get_buf(sdp); 302b3b94faaSDavid Teigland mh = (struct gfs2_meta_header *)bh->b_data; 303b3b94faaSDavid Teigland mh->mh_magic = cpu_to_be32(GFS2_MAGIC); 304b3b94faaSDavid Teigland mh->mh_type = cpu_to_be16(GFS2_METATYPE_LB); 305b3b94faaSDavid Teigland mh->mh_format = cpu_to_be16(GFS2_FORMAT_LB); 306b3b94faaSDavid Teigland offset = sizeof(struct gfs2_meta_header); 307b3b94faaSDavid Teigland } 308b3b94faaSDavid Teigland 309b3b94faaSDavid Teigland *(__be64 *)(bh->b_data + offset) = cpu_to_be64(rv->rv_blkno); 310b3b94faaSDavid Teigland kfree(rv); 311b3b94faaSDavid Teigland 312b3b94faaSDavid Teigland offset += sizeof(uint64_t); 313b3b94faaSDavid Teigland } 314b3b94faaSDavid Teigland gfs2_assert_withdraw(sdp, !sdp->sd_log_num_revoke); 315b3b94faaSDavid Teigland 316b3b94faaSDavid Teigland set_buffer_dirty(bh); 317b3b94faaSDavid Teigland ll_rw_block(WRITE, 1, &bh); 318b3b94faaSDavid Teigland } 319b3b94faaSDavid Teigland 320b3b94faaSDavid Teigland static void revoke_lo_before_scan(struct gfs2_jdesc *jd, 321b3b94faaSDavid Teigland struct gfs2_log_header *head, int pass) 322b3b94faaSDavid Teigland { 323b3b94faaSDavid Teigland struct gfs2_sbd *sdp = jd->jd_inode->i_sbd; 324b3b94faaSDavid Teigland 325b3b94faaSDavid Teigland if (pass != 0) 326b3b94faaSDavid Teigland return; 327b3b94faaSDavid Teigland 328b3b94faaSDavid Teigland sdp->sd_found_revokes = 0; 329b3b94faaSDavid Teigland sdp->sd_replay_tail = head->lh_tail; 330b3b94faaSDavid Teigland } 331b3b94faaSDavid Teigland 332b3b94faaSDavid Teigland static int revoke_lo_scan_elements(struct gfs2_jdesc *jd, unsigned int start, 333b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld, __be64 *ptr, 334b3b94faaSDavid Teigland int pass) 335b3b94faaSDavid Teigland { 336b3b94faaSDavid Teigland struct gfs2_sbd *sdp = jd->jd_inode->i_sbd; 337b3b94faaSDavid Teigland unsigned int blks = be32_to_cpu(ld->ld_length); 338b3b94faaSDavid Teigland unsigned int revokes = be32_to_cpu(ld->ld_data1); 339b3b94faaSDavid Teigland struct buffer_head *bh; 340b3b94faaSDavid Teigland unsigned int offset; 341b3b94faaSDavid Teigland uint64_t blkno; 342b3b94faaSDavid Teigland int first = 1; 343b3b94faaSDavid Teigland int error; 344b3b94faaSDavid Teigland 345b3b94faaSDavid Teigland if (pass != 0 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_REVOKE) 346b3b94faaSDavid Teigland return 0; 347b3b94faaSDavid Teigland 348b3b94faaSDavid Teigland offset = sizeof(struct gfs2_log_descriptor); 349b3b94faaSDavid Teigland 350b3b94faaSDavid Teigland for (; blks; gfs2_replay_incr_blk(sdp, &start), blks--) { 351b3b94faaSDavid Teigland error = gfs2_replay_read_block(jd, start, &bh); 352b3b94faaSDavid Teigland if (error) 353b3b94faaSDavid Teigland return error; 354b3b94faaSDavid Teigland 355b3b94faaSDavid Teigland if (!first) 356b3b94faaSDavid Teigland gfs2_metatype_check(sdp, bh, GFS2_METATYPE_LB); 357b3b94faaSDavid Teigland 358b3b94faaSDavid Teigland while (offset + sizeof(uint64_t) <= sdp->sd_sb.sb_bsize) { 359b3b94faaSDavid Teigland blkno = be64_to_cpu(*(__be64 *)(bh->b_data + offset)); 360b3b94faaSDavid Teigland 361b3b94faaSDavid Teigland error = gfs2_revoke_add(sdp, blkno, start); 362b3b94faaSDavid Teigland if (error < 0) 363b3b94faaSDavid Teigland return error; 364b3b94faaSDavid Teigland else if (error) 365b3b94faaSDavid Teigland sdp->sd_found_revokes++; 366b3b94faaSDavid Teigland 367b3b94faaSDavid Teigland if (!--revokes) 368b3b94faaSDavid Teigland break; 369b3b94faaSDavid Teigland offset += sizeof(uint64_t); 370b3b94faaSDavid Teigland } 371b3b94faaSDavid Teigland 372b3b94faaSDavid Teigland brelse(bh); 373b3b94faaSDavid Teigland offset = sizeof(struct gfs2_meta_header); 374b3b94faaSDavid Teigland first = 0; 375b3b94faaSDavid Teigland } 376b3b94faaSDavid Teigland 377b3b94faaSDavid Teigland return 0; 378b3b94faaSDavid Teigland } 379b3b94faaSDavid Teigland 380b3b94faaSDavid Teigland static void revoke_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass) 381b3b94faaSDavid Teigland { 382b3b94faaSDavid Teigland struct gfs2_sbd *sdp = jd->jd_inode->i_sbd; 383b3b94faaSDavid Teigland 384b3b94faaSDavid Teigland if (error) { 385b3b94faaSDavid Teigland gfs2_revoke_clean(sdp); 386b3b94faaSDavid Teigland return; 387b3b94faaSDavid Teigland } 388b3b94faaSDavid Teigland if (pass != 1) 389b3b94faaSDavid Teigland return; 390b3b94faaSDavid Teigland 391b3b94faaSDavid Teigland fs_info(sdp, "jid=%u: Found %u revoke tags\n", 392b3b94faaSDavid Teigland jd->jd_jid, sdp->sd_found_revokes); 393b3b94faaSDavid Teigland 394b3b94faaSDavid Teigland gfs2_revoke_clean(sdp); 395b3b94faaSDavid Teigland } 396b3b94faaSDavid Teigland 397b3b94faaSDavid Teigland static void rg_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 398b3b94faaSDavid Teigland { 399b3b94faaSDavid Teigland struct gfs2_rgrpd *rgd; 400b3b94faaSDavid Teigland 401b3b94faaSDavid Teigland get_transaction->tr_touched = 1; 402b3b94faaSDavid Teigland 403b3b94faaSDavid Teigland if (!list_empty(&le->le_list)) 404b3b94faaSDavid Teigland return; 405b3b94faaSDavid Teigland 406b3b94faaSDavid Teigland rgd = container_of(le, struct gfs2_rgrpd, rd_le); 407b3b94faaSDavid Teigland gfs2_rgrp_bh_hold(rgd); 408b3b94faaSDavid Teigland 409b3b94faaSDavid Teigland gfs2_log_lock(sdp); 410b3b94faaSDavid Teigland sdp->sd_log_num_rg++; 411b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_rg); 412b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 413b3b94faaSDavid Teigland } 414b3b94faaSDavid Teigland 415b3b94faaSDavid Teigland static void rg_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) 416b3b94faaSDavid Teigland { 417b3b94faaSDavid Teigland struct list_head *head = &sdp->sd_log_le_rg; 418b3b94faaSDavid Teigland struct gfs2_rgrpd *rgd; 419b3b94faaSDavid Teigland 420b3b94faaSDavid Teigland while (!list_empty(head)) { 421b3b94faaSDavid Teigland rgd = list_entry(head->next, struct gfs2_rgrpd, rd_le.le_list); 422b3b94faaSDavid Teigland list_del_init(&rgd->rd_le.le_list); 423b3b94faaSDavid Teigland sdp->sd_log_num_rg--; 424b3b94faaSDavid Teigland 425b3b94faaSDavid Teigland gfs2_rgrp_repolish_clones(rgd); 426b3b94faaSDavid Teigland gfs2_rgrp_bh_put(rgd); 427b3b94faaSDavid Teigland } 428b3b94faaSDavid Teigland gfs2_assert_warn(sdp, !sdp->sd_log_num_rg); 429b3b94faaSDavid Teigland } 430b3b94faaSDavid Teigland 431b3b94faaSDavid Teigland static void databuf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 432b3b94faaSDavid Teigland { 433b3b94faaSDavid Teigland get_transaction->tr_touched = 1; 434b3b94faaSDavid Teigland 435b3b94faaSDavid Teigland gfs2_log_lock(sdp); 436b3b94faaSDavid Teigland sdp->sd_log_num_databuf++; 437b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_databuf); 438b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 439b3b94faaSDavid Teigland } 440b3b94faaSDavid Teigland 441b3b94faaSDavid Teigland static void databuf_lo_before_commit(struct gfs2_sbd *sdp) 442b3b94faaSDavid Teigland { 443b3b94faaSDavid Teigland struct list_head *head = &sdp->sd_log_le_databuf; 444b3b94faaSDavid Teigland LIST_HEAD(started); 445b3b94faaSDavid Teigland struct gfs2_databuf *db; 446b3b94faaSDavid Teigland struct buffer_head *bh; 447b3b94faaSDavid Teigland 448b3b94faaSDavid Teigland while (!list_empty(head)) { 449b3b94faaSDavid Teigland db = list_entry(head->prev, struct gfs2_databuf, db_le.le_list); 450b3b94faaSDavid Teigland list_move(&db->db_le.le_list, &started); 451b3b94faaSDavid Teigland 452b3b94faaSDavid Teigland gfs2_log_lock(sdp); 453b3b94faaSDavid Teigland bh = db->db_bh; 454b3b94faaSDavid Teigland if (bh) { 455b3b94faaSDavid Teigland get_bh(bh); 456b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 457b3b94faaSDavid Teigland if (buffer_dirty(bh)) { 458b3b94faaSDavid Teigland wait_on_buffer(bh); 459b3b94faaSDavid Teigland ll_rw_block(WRITE, 1, &bh); 460b3b94faaSDavid Teigland } 461b3b94faaSDavid Teigland brelse(bh); 462b3b94faaSDavid Teigland } else 463b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 464b3b94faaSDavid Teigland } 465b3b94faaSDavid Teigland 466b3b94faaSDavid Teigland while (!list_empty(&started)) { 467b3b94faaSDavid Teigland db = list_entry(started.next, struct gfs2_databuf, 468b3b94faaSDavid Teigland db_le.le_list); 469b3b94faaSDavid Teigland list_del(&db->db_le.le_list); 470b3b94faaSDavid Teigland sdp->sd_log_num_databuf--; 471b3b94faaSDavid Teigland 472b3b94faaSDavid Teigland gfs2_log_lock(sdp); 473b3b94faaSDavid Teigland bh = db->db_bh; 474b3b94faaSDavid Teigland if (bh) { 475b3b94faaSDavid Teigland set_v2db(bh, NULL); 476b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 477b3b94faaSDavid Teigland wait_on_buffer(bh); 478b3b94faaSDavid Teigland brelse(bh); 479b3b94faaSDavid Teigland } else 480b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 481b3b94faaSDavid Teigland 482b3b94faaSDavid Teigland kfree(db); 483b3b94faaSDavid Teigland } 484b3b94faaSDavid Teigland 485b3b94faaSDavid Teigland gfs2_assert_warn(sdp, !sdp->sd_log_num_databuf); 486b3b94faaSDavid Teigland } 487b3b94faaSDavid Teigland 488b3b94faaSDavid Teigland struct gfs2_log_operations gfs2_glock_lops = { 489b3b94faaSDavid Teigland .lo_add = glock_lo_add, 490b3b94faaSDavid Teigland .lo_after_commit = glock_lo_after_commit, 491b3b94faaSDavid Teigland .lo_name = "glock" 492b3b94faaSDavid Teigland }; 493b3b94faaSDavid Teigland 494b3b94faaSDavid Teigland struct gfs2_log_operations gfs2_buf_lops = { 495b3b94faaSDavid Teigland .lo_add = buf_lo_add, 496b3b94faaSDavid Teigland .lo_incore_commit = buf_lo_incore_commit, 497b3b94faaSDavid Teigland .lo_before_commit = buf_lo_before_commit, 498b3b94faaSDavid Teigland .lo_after_commit = buf_lo_after_commit, 499b3b94faaSDavid Teigland .lo_before_scan = buf_lo_before_scan, 500b3b94faaSDavid Teigland .lo_scan_elements = buf_lo_scan_elements, 501b3b94faaSDavid Teigland .lo_after_scan = buf_lo_after_scan, 502b3b94faaSDavid Teigland .lo_name = "buf" 503b3b94faaSDavid Teigland }; 504b3b94faaSDavid Teigland 505b3b94faaSDavid Teigland struct gfs2_log_operations gfs2_revoke_lops = { 506b3b94faaSDavid Teigland .lo_add = revoke_lo_add, 507b3b94faaSDavid Teigland .lo_before_commit = revoke_lo_before_commit, 508b3b94faaSDavid Teigland .lo_before_scan = revoke_lo_before_scan, 509b3b94faaSDavid Teigland .lo_scan_elements = revoke_lo_scan_elements, 510b3b94faaSDavid Teigland .lo_after_scan = revoke_lo_after_scan, 511b3b94faaSDavid Teigland .lo_name = "revoke" 512b3b94faaSDavid Teigland }; 513b3b94faaSDavid Teigland 514b3b94faaSDavid Teigland struct gfs2_log_operations gfs2_rg_lops = { 515b3b94faaSDavid Teigland .lo_add = rg_lo_add, 516b3b94faaSDavid Teigland .lo_after_commit = rg_lo_after_commit, 517b3b94faaSDavid Teigland .lo_name = "rg" 518b3b94faaSDavid Teigland }; 519b3b94faaSDavid Teigland 520b3b94faaSDavid Teigland struct gfs2_log_operations gfs2_databuf_lops = { 521b3b94faaSDavid Teigland .lo_add = databuf_lo_add, 522b3b94faaSDavid Teigland .lo_before_commit = databuf_lo_before_commit, 523b3b94faaSDavid Teigland .lo_name = "databuf" 524b3b94faaSDavid Teigland }; 525b3b94faaSDavid Teigland 526b3b94faaSDavid Teigland struct gfs2_log_operations *gfs2_log_ops[] = { 527b3b94faaSDavid Teigland &gfs2_glock_lops, 528b3b94faaSDavid Teigland &gfs2_buf_lops, 529b3b94faaSDavid Teigland &gfs2_revoke_lops, 530b3b94faaSDavid Teigland &gfs2_rg_lops, 531b3b94faaSDavid Teigland &gfs2_databuf_lops, 532b3b94faaSDavid Teigland NULL 533b3b94faaSDavid Teigland }; 534b3b94faaSDavid Teigland 535