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); 82a98ab220SSteven Whitehouse gfs2_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 172a98ab220SSteven Whitehouse gfs2_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 43118ec7d5cSSteven Whitehouse /** 43218ec7d5cSSteven Whitehouse * databuf_lo_add - Add a databuf to the transaction. 43318ec7d5cSSteven Whitehouse * 43418ec7d5cSSteven Whitehouse * This is used in two distinct cases: 43518ec7d5cSSteven Whitehouse * i) In ordered write mode 43618ec7d5cSSteven Whitehouse * We put the data buffer on a list so that we can ensure that its 43718ec7d5cSSteven Whitehouse * synced to disk at the right time 43818ec7d5cSSteven Whitehouse * ii) In journaled data mode 43918ec7d5cSSteven Whitehouse * We need to journal the data block in the same way as metadata in 44018ec7d5cSSteven Whitehouse * the functions above. The difference is that here we have a tag 44118ec7d5cSSteven Whitehouse * which is two __be64's being the block number (as per meta data) 44218ec7d5cSSteven Whitehouse * and a flag which says whether the data block needs escaping or 44318ec7d5cSSteven Whitehouse * not. This means we need a new log entry for each 251 or so data 44418ec7d5cSSteven Whitehouse * blocks, which isn't an enormous overhead but twice as much as 44518ec7d5cSSteven Whitehouse * for normal metadata blocks. 44618ec7d5cSSteven Whitehouse */ 447b3b94faaSDavid Teigland static void databuf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 448b3b94faaSDavid Teigland { 44918ec7d5cSSteven Whitehouse struct gfs2_bufdata *bd = container_of(le, struct gfs2_bufdata, bd_le); 45018ec7d5cSSteven Whitehouse struct gfs2_trans *tr = get_transaction; 45118ec7d5cSSteven Whitehouse struct address_space *mapping = bd->bd_bh->b_page->mapping; 45218ec7d5cSSteven Whitehouse struct gfs2_inode *ip = get_v2ip(mapping->host); 453b3b94faaSDavid Teigland 45418ec7d5cSSteven Whitehouse tr->tr_touched = 1; 45518ec7d5cSSteven Whitehouse if (!list_empty(&bd->bd_list_tr) && 45618ec7d5cSSteven Whitehouse (ip->i_di.di_flags & GFS2_DIF_JDATA)) { 45718ec7d5cSSteven Whitehouse tr->tr_num_buf++; 45818ec7d5cSSteven Whitehouse gfs2_trans_add_gl(bd->bd_gl); 45918ec7d5cSSteven Whitehouse list_add(&bd->bd_list_tr, &tr->tr_list_buf); 46018ec7d5cSSteven Whitehouse gfs2_pin(sdp, bd->bd_bh); 46118ec7d5cSSteven Whitehouse } else { 46218ec7d5cSSteven Whitehouse clear_buffer_pinned(bd->bd_bh); 46318ec7d5cSSteven Whitehouse } 464b3b94faaSDavid Teigland gfs2_log_lock(sdp); 46518ec7d5cSSteven Whitehouse if (ip->i_di.di_flags & GFS2_DIF_JDATA) 46618ec7d5cSSteven Whitehouse sdp->sd_log_num_jdata++; 467b3b94faaSDavid Teigland sdp->sd_log_num_databuf++; 468b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_databuf); 469b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 470b3b94faaSDavid Teigland } 471b3b94faaSDavid Teigland 47218ec7d5cSSteven Whitehouse static int gfs2_check_magic(struct buffer_head *bh) 47318ec7d5cSSteven Whitehouse { 47418ec7d5cSSteven Whitehouse struct page *page = bh->b_page; 47518ec7d5cSSteven Whitehouse void *kaddr; 47618ec7d5cSSteven Whitehouse __be32 *ptr; 47718ec7d5cSSteven Whitehouse int rv = 0; 47818ec7d5cSSteven Whitehouse 47918ec7d5cSSteven Whitehouse kaddr = kmap_atomic(page, KM_USER0); 48018ec7d5cSSteven Whitehouse ptr = kaddr + bh_offset(bh); 48118ec7d5cSSteven Whitehouse if (*ptr == cpu_to_be32(GFS2_MAGIC)) 48218ec7d5cSSteven Whitehouse rv = 1; 48318ec7d5cSSteven Whitehouse kunmap_atomic(page, KM_USER0); 48418ec7d5cSSteven Whitehouse 48518ec7d5cSSteven Whitehouse return rv; 48618ec7d5cSSteven Whitehouse } 48718ec7d5cSSteven Whitehouse 48818ec7d5cSSteven Whitehouse /** 48918ec7d5cSSteven Whitehouse * databuf_lo_before_commit - Scan the data buffers, writing as we go 49018ec7d5cSSteven Whitehouse * 49118ec7d5cSSteven Whitehouse * Here we scan through the lists of buffers and make the assumption 49218ec7d5cSSteven Whitehouse * that any buffer thats been pinned is being journaled, and that 49318ec7d5cSSteven Whitehouse * any unpinned buffer is an ordered write data buffer and therefore 49418ec7d5cSSteven Whitehouse * will be written back rather than journaled. 49518ec7d5cSSteven Whitehouse */ 496b3b94faaSDavid Teigland static void databuf_lo_before_commit(struct gfs2_sbd *sdp) 497b3b94faaSDavid Teigland { 498b3b94faaSDavid Teigland LIST_HEAD(started); 49918ec7d5cSSteven Whitehouse struct gfs2_bufdata *bd1 = NULL, *bd2, *bdt; 50018ec7d5cSSteven Whitehouse struct buffer_head *bh = NULL; 50118ec7d5cSSteven Whitehouse unsigned int offset = sizeof(struct gfs2_log_descriptor); 50218ec7d5cSSteven Whitehouse struct gfs2_log_descriptor *ld; 50318ec7d5cSSteven Whitehouse unsigned int limit; 50418ec7d5cSSteven Whitehouse unsigned int total_dbuf = sdp->sd_log_num_databuf; 50518ec7d5cSSteven Whitehouse unsigned int total_jdata = sdp->sd_log_num_jdata; 50618ec7d5cSSteven Whitehouse unsigned int num, n; 50718ec7d5cSSteven Whitehouse __be64 *ptr; 508b3b94faaSDavid Teigland 50918ec7d5cSSteven Whitehouse offset += (2*sizeof(__be64) - 1); 51018ec7d5cSSteven Whitehouse offset &= ~(2*sizeof(__be64) - 1); 51118ec7d5cSSteven Whitehouse limit = (sdp->sd_sb.sb_bsize - offset)/sizeof(__be64); 512b3b94faaSDavid Teigland 51318ec7d5cSSteven Whitehouse /* printk(KERN_INFO "totals: jdata=%u dbuf=%u\n", total_jdata, total_dbuf); */ 51418ec7d5cSSteven Whitehouse /* 51518ec7d5cSSteven Whitehouse * Start writing ordered buffers, write journaled buffers 51618ec7d5cSSteven Whitehouse * into the log along with a header 51718ec7d5cSSteven Whitehouse */ 51818ec7d5cSSteven Whitehouse bd2 = bd1 = list_prepare_entry(bd1, &sdp->sd_log_le_databuf, bd_le.le_list); 51918ec7d5cSSteven Whitehouse while(total_dbuf) { 52018ec7d5cSSteven Whitehouse num = total_jdata; 52118ec7d5cSSteven Whitehouse if (num > limit) 52218ec7d5cSSteven Whitehouse num = limit; 52318ec7d5cSSteven Whitehouse n = 0; 52418ec7d5cSSteven Whitehouse list_for_each_entry_safe_continue(bd1, bdt, &sdp->sd_log_le_databuf, bd_le.le_list) { 525b3b94faaSDavid Teigland gfs2_log_lock(sdp); 52618ec7d5cSSteven Whitehouse /* An ordered write buffer */ 52718ec7d5cSSteven Whitehouse if (bd1->bd_bh && !buffer_pinned(bd1->bd_bh)) { 52818ec7d5cSSteven Whitehouse list_move(&bd1->bd_le.le_list, &started); 52918ec7d5cSSteven Whitehouse if (bd1 == bd2) { 53018ec7d5cSSteven Whitehouse bd2 = NULL; 53118ec7d5cSSteven Whitehouse bd2 = list_prepare_entry(bd2, &sdp->sd_log_le_databuf, bd_le.le_list); 53218ec7d5cSSteven Whitehouse } 53318ec7d5cSSteven Whitehouse total_dbuf--; 53418ec7d5cSSteven Whitehouse if (bd1->bd_bh) { 53518ec7d5cSSteven Whitehouse get_bh(bd1->bd_bh); 53618ec7d5cSSteven Whitehouse gfs2_log_unlock(sdp); 53718ec7d5cSSteven Whitehouse if (buffer_dirty(bd1->bd_bh)) { 53818ec7d5cSSteven Whitehouse wait_on_buffer(bd1->bd_bh); 53918ec7d5cSSteven Whitehouse ll_rw_block(WRITE, 1, &bd1->bd_bh); 54018ec7d5cSSteven Whitehouse } 54118ec7d5cSSteven Whitehouse brelse(bd1->bd_bh); 54218ec7d5cSSteven Whitehouse continue; 54318ec7d5cSSteven Whitehouse } 54418ec7d5cSSteven Whitehouse gfs2_log_unlock(sdp); 54518ec7d5cSSteven Whitehouse continue; 54618ec7d5cSSteven Whitehouse } else if (bd1->bd_bh) { /* A journaled buffer */ 54718ec7d5cSSteven Whitehouse int magic; 54818ec7d5cSSteven Whitehouse gfs2_log_unlock(sdp); 54918ec7d5cSSteven Whitehouse /* printk(KERN_INFO "journaled buffer\n"); */ 55018ec7d5cSSteven Whitehouse if (!bh) { 55118ec7d5cSSteven Whitehouse bh = gfs2_log_get_buf(sdp); 55218ec7d5cSSteven Whitehouse ld = (struct gfs2_log_descriptor *)bh->b_data; 55318ec7d5cSSteven Whitehouse ptr = (__be64 *)(bh->b_data + offset); 55418ec7d5cSSteven Whitehouse ld->ld_header.mh_magic = cpu_to_be32(GFS2_MAGIC); 55518ec7d5cSSteven Whitehouse ld->ld_header.mh_type = cpu_to_be16(GFS2_METATYPE_LD); 55618ec7d5cSSteven Whitehouse ld->ld_header.mh_format = cpu_to_be16(GFS2_FORMAT_LD); 55718ec7d5cSSteven Whitehouse ld->ld_type = cpu_to_be32(GFS2_LOG_DESC_JDATA); 55818ec7d5cSSteven Whitehouse ld->ld_length = cpu_to_be32(num + 1); 55918ec7d5cSSteven Whitehouse ld->ld_data1 = cpu_to_be32(num); 56018ec7d5cSSteven Whitehouse ld->ld_data2 = cpu_to_be32(0); 56118ec7d5cSSteven Whitehouse memset(ld->ld_reserved, 0, sizeof(ld->ld_reserved)); 56218ec7d5cSSteven Whitehouse } 56318ec7d5cSSteven Whitehouse magic = gfs2_check_magic(bd1->bd_bh); 56418ec7d5cSSteven Whitehouse *ptr++ = cpu_to_be64(bd1->bd_bh->b_blocknr); 56518ec7d5cSSteven Whitehouse *ptr++ = cpu_to_be64((__u64)magic); 56618ec7d5cSSteven Whitehouse clear_buffer_escaped(bd1->bd_bh); 56718ec7d5cSSteven Whitehouse if (unlikely(magic != 0)) 56818ec7d5cSSteven Whitehouse set_buffer_escaped(bd1->bd_bh); 56918ec7d5cSSteven Whitehouse if (n++ > num) 57018ec7d5cSSteven Whitehouse break; 57118ec7d5cSSteven Whitehouse } 57218ec7d5cSSteven Whitehouse } 573b3b94faaSDavid Teigland if (bh) { 57418ec7d5cSSteven Whitehouse set_buffer_dirty(bh); 575b3b94faaSDavid Teigland ll_rw_block(WRITE, 1, &bh); 57618ec7d5cSSteven Whitehouse bh = NULL; 577b3b94faaSDavid Teigland } 57818ec7d5cSSteven Whitehouse n = 0; 57918ec7d5cSSteven Whitehouse /* printk(KERN_INFO "totals2: jdata=%u dbuf=%u\n", total_jdata, total_dbuf); */ 58018ec7d5cSSteven Whitehouse list_for_each_entry_continue(bd2, &sdp->sd_log_le_databuf, bd_le.le_list) { 58118ec7d5cSSteven Whitehouse if (!bd2->bd_bh) 58218ec7d5cSSteven Whitehouse continue; 58318ec7d5cSSteven Whitehouse /* copy buffer if it needs escaping */ 58418ec7d5cSSteven Whitehouse if (unlikely(buffer_escaped(bd2->bd_bh))) { 58518ec7d5cSSteven Whitehouse void *kaddr; 58618ec7d5cSSteven Whitehouse struct page *page = bd2->bd_bh->b_page; 58718ec7d5cSSteven Whitehouse bh = gfs2_log_get_buf(sdp); 58818ec7d5cSSteven Whitehouse kaddr = kmap_atomic(page, KM_USER0); 58918ec7d5cSSteven Whitehouse memcpy(bh->b_data, kaddr + bh_offset(bd2->bd_bh), sdp->sd_sb.sb_bsize); 59018ec7d5cSSteven Whitehouse kunmap_atomic(page, KM_USER0); 59118ec7d5cSSteven Whitehouse *(__be32 *)bh->b_data = 0; 59218ec7d5cSSteven Whitehouse } else { 59318ec7d5cSSteven Whitehouse bh = gfs2_log_fake_buf(sdp, bd2->bd_bh); 594b3b94faaSDavid Teigland } 59518ec7d5cSSteven Whitehouse set_buffer_dirty(bh); 59618ec7d5cSSteven Whitehouse ll_rw_block(WRITE, 1, &bh); 59718ec7d5cSSteven Whitehouse if (++n >= num) 59818ec7d5cSSteven Whitehouse break; 59918ec7d5cSSteven Whitehouse } 60018ec7d5cSSteven Whitehouse bh = NULL; 60118ec7d5cSSteven Whitehouse total_dbuf -= num; 60218ec7d5cSSteven Whitehouse total_jdata -= num; 60318ec7d5cSSteven Whitehouse } 60418ec7d5cSSteven Whitehouse /* printk(KERN_INFO "wait on ordered data buffers\n"); */ 60518ec7d5cSSteven Whitehouse /* Wait on all ordered buffers */ 606b3b94faaSDavid Teigland while (!list_empty(&started)) { 60718ec7d5cSSteven Whitehouse bd1 = list_entry(started.next, struct gfs2_bufdata, bd_le.le_list); 60818ec7d5cSSteven Whitehouse list_del(&bd1->bd_le.le_list); 609b3b94faaSDavid Teigland sdp->sd_log_num_databuf--; 610b3b94faaSDavid Teigland 611b3b94faaSDavid Teigland gfs2_log_lock(sdp); 61218ec7d5cSSteven Whitehouse bh = bd1->bd_bh; 613b3b94faaSDavid Teigland if (bh) { 61464fb4eb7SSteven Whitehouse set_v2bd(bh, NULL); 615b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 616b3b94faaSDavid Teigland wait_on_buffer(bh); 617b3b94faaSDavid Teigland brelse(bh); 618b3b94faaSDavid Teigland } else 619b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 620b3b94faaSDavid Teigland 62118ec7d5cSSteven Whitehouse kfree(bd1); 622b3b94faaSDavid Teigland } 623b3b94faaSDavid Teigland 62418ec7d5cSSteven Whitehouse /* printk(KERN_INFO "sd_log_num_databuf %u sd_log_num_jdata %u\n", sdp->sd_log_num_databuf, sdp->sd_log_num_jdata); */ 62518ec7d5cSSteven Whitehouse /* We've removed all the ordered write bufs here, so only jdata left */ 62618ec7d5cSSteven Whitehouse gfs2_assert_warn(sdp, sdp->sd_log_num_databuf == sdp->sd_log_num_jdata); 627b3b94faaSDavid Teigland } 628b3b94faaSDavid Teigland 62918ec7d5cSSteven Whitehouse static int databuf_lo_scan_elements(struct gfs2_jdesc *jd, unsigned int start, 63018ec7d5cSSteven Whitehouse struct gfs2_log_descriptor *ld, 63118ec7d5cSSteven Whitehouse __be64 *ptr, int pass) 63218ec7d5cSSteven Whitehouse { 63318ec7d5cSSteven Whitehouse struct gfs2_sbd *sdp = jd->jd_inode->i_sbd; 63418ec7d5cSSteven Whitehouse struct gfs2_glock *gl = jd->jd_inode->i_gl; 63518ec7d5cSSteven Whitehouse unsigned int blks = be32_to_cpu(ld->ld_data1); 63618ec7d5cSSteven Whitehouse struct buffer_head *bh_log, *bh_ip; 63718ec7d5cSSteven Whitehouse uint64_t blkno; 63818ec7d5cSSteven Whitehouse uint64_t esc; 63918ec7d5cSSteven Whitehouse int error = 0; 64018ec7d5cSSteven Whitehouse 64118ec7d5cSSteven Whitehouse if (pass != 1 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_JDATA) 64218ec7d5cSSteven Whitehouse return 0; 64318ec7d5cSSteven Whitehouse 64418ec7d5cSSteven Whitehouse gfs2_replay_incr_blk(sdp, &start); 64518ec7d5cSSteven Whitehouse for (; blks; gfs2_replay_incr_blk(sdp, &start), blks--) { 64618ec7d5cSSteven Whitehouse blkno = be64_to_cpu(*ptr++); 64718ec7d5cSSteven Whitehouse esc = be64_to_cpu(*ptr++); 64818ec7d5cSSteven Whitehouse 64918ec7d5cSSteven Whitehouse sdp->sd_found_blocks++; 65018ec7d5cSSteven Whitehouse 65118ec7d5cSSteven Whitehouse if (gfs2_revoke_check(sdp, blkno, start)) 65218ec7d5cSSteven Whitehouse continue; 65318ec7d5cSSteven Whitehouse 65418ec7d5cSSteven Whitehouse error = gfs2_replay_read_block(jd, start, &bh_log); 65518ec7d5cSSteven Whitehouse if (error) 65618ec7d5cSSteven Whitehouse return error; 65718ec7d5cSSteven Whitehouse 65818ec7d5cSSteven Whitehouse bh_ip = gfs2_meta_new(gl, blkno); 65918ec7d5cSSteven Whitehouse memcpy(bh_ip->b_data, bh_log->b_data, bh_log->b_size); 66018ec7d5cSSteven Whitehouse 66118ec7d5cSSteven Whitehouse /* Unescape */ 66218ec7d5cSSteven Whitehouse if (esc) { 66318ec7d5cSSteven Whitehouse __be32 *eptr = (__be32 *)bh_ip->b_data; 66418ec7d5cSSteven Whitehouse *eptr = cpu_to_be32(GFS2_MAGIC); 66518ec7d5cSSteven Whitehouse } 66618ec7d5cSSteven Whitehouse mark_buffer_dirty(bh_ip); 66718ec7d5cSSteven Whitehouse 66818ec7d5cSSteven Whitehouse brelse(bh_log); 66918ec7d5cSSteven Whitehouse brelse(bh_ip); 67018ec7d5cSSteven Whitehouse if (error) 67118ec7d5cSSteven Whitehouse break; 67218ec7d5cSSteven Whitehouse 67318ec7d5cSSteven Whitehouse sdp->sd_replayed_blocks++; 67418ec7d5cSSteven Whitehouse } 67518ec7d5cSSteven Whitehouse 67618ec7d5cSSteven Whitehouse return error; 67718ec7d5cSSteven Whitehouse } 67818ec7d5cSSteven Whitehouse 67918ec7d5cSSteven Whitehouse /* FIXME: sort out accounting for log blocks etc. */ 68018ec7d5cSSteven Whitehouse 68118ec7d5cSSteven Whitehouse static void databuf_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass) 68218ec7d5cSSteven Whitehouse { 68318ec7d5cSSteven Whitehouse struct gfs2_sbd *sdp = jd->jd_inode->i_sbd; 68418ec7d5cSSteven Whitehouse 68518ec7d5cSSteven Whitehouse if (error) { 68618ec7d5cSSteven Whitehouse gfs2_meta_sync(jd->jd_inode->i_gl, DIO_START | DIO_WAIT); 68718ec7d5cSSteven Whitehouse return; 68818ec7d5cSSteven Whitehouse } 68918ec7d5cSSteven Whitehouse if (pass != 1) 69018ec7d5cSSteven Whitehouse return; 69118ec7d5cSSteven Whitehouse 69218ec7d5cSSteven Whitehouse /* data sync? */ 69318ec7d5cSSteven Whitehouse gfs2_meta_sync(jd->jd_inode->i_gl, DIO_START | DIO_WAIT); 69418ec7d5cSSteven Whitehouse 69518ec7d5cSSteven Whitehouse fs_info(sdp, "jid=%u: Replayed %u of %u data blocks\n", 69618ec7d5cSSteven Whitehouse jd->jd_jid, sdp->sd_replayed_blocks, sdp->sd_found_blocks); 69718ec7d5cSSteven Whitehouse } 69818ec7d5cSSteven Whitehouse 69918ec7d5cSSteven Whitehouse static void databuf_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) 70018ec7d5cSSteven Whitehouse { 70118ec7d5cSSteven Whitehouse struct list_head *head = &sdp->sd_log_le_databuf; 70218ec7d5cSSteven Whitehouse struct gfs2_bufdata *bd; 70318ec7d5cSSteven Whitehouse 70418ec7d5cSSteven Whitehouse while (!list_empty(head)) { 70518ec7d5cSSteven Whitehouse bd = list_entry(head->next, struct gfs2_bufdata, bd_le.le_list); 70618ec7d5cSSteven Whitehouse list_del_init(&bd->bd_le.le_list); 70718ec7d5cSSteven Whitehouse sdp->sd_log_num_databuf--; 70818ec7d5cSSteven Whitehouse sdp->sd_log_num_jdata--; 70918ec7d5cSSteven Whitehouse gfs2_unpin(sdp, bd->bd_bh, ai); 71018ec7d5cSSteven Whitehouse brelse(bd->bd_bh); 71118ec7d5cSSteven Whitehouse kfree(bd); 71218ec7d5cSSteven Whitehouse } 71318ec7d5cSSteven Whitehouse gfs2_assert_warn(sdp, !sdp->sd_log_num_databuf); 71418ec7d5cSSteven Whitehouse gfs2_assert_warn(sdp, !sdp->sd_log_num_jdata); 71518ec7d5cSSteven Whitehouse } 71618ec7d5cSSteven Whitehouse 71718ec7d5cSSteven Whitehouse 718b3b94faaSDavid Teigland struct gfs2_log_operations gfs2_glock_lops = { 719b3b94faaSDavid Teigland .lo_add = glock_lo_add, 720b3b94faaSDavid Teigland .lo_after_commit = glock_lo_after_commit, 721b3b94faaSDavid Teigland .lo_name = "glock" 722b3b94faaSDavid Teigland }; 723b3b94faaSDavid Teigland 724b3b94faaSDavid Teigland struct gfs2_log_operations gfs2_buf_lops = { 725b3b94faaSDavid Teigland .lo_add = buf_lo_add, 726b3b94faaSDavid Teigland .lo_incore_commit = buf_lo_incore_commit, 727b3b94faaSDavid Teigland .lo_before_commit = buf_lo_before_commit, 728b3b94faaSDavid Teigland .lo_after_commit = buf_lo_after_commit, 729b3b94faaSDavid Teigland .lo_before_scan = buf_lo_before_scan, 730b3b94faaSDavid Teigland .lo_scan_elements = buf_lo_scan_elements, 731b3b94faaSDavid Teigland .lo_after_scan = buf_lo_after_scan, 732b3b94faaSDavid Teigland .lo_name = "buf" 733b3b94faaSDavid Teigland }; 734b3b94faaSDavid Teigland 735b3b94faaSDavid Teigland struct gfs2_log_operations gfs2_revoke_lops = { 736b3b94faaSDavid Teigland .lo_add = revoke_lo_add, 737b3b94faaSDavid Teigland .lo_before_commit = revoke_lo_before_commit, 738b3b94faaSDavid Teigland .lo_before_scan = revoke_lo_before_scan, 739b3b94faaSDavid Teigland .lo_scan_elements = revoke_lo_scan_elements, 740b3b94faaSDavid Teigland .lo_after_scan = revoke_lo_after_scan, 741b3b94faaSDavid Teigland .lo_name = "revoke" 742b3b94faaSDavid Teigland }; 743b3b94faaSDavid Teigland 744b3b94faaSDavid Teigland struct gfs2_log_operations gfs2_rg_lops = { 745b3b94faaSDavid Teigland .lo_add = rg_lo_add, 746b3b94faaSDavid Teigland .lo_after_commit = rg_lo_after_commit, 747b3b94faaSDavid Teigland .lo_name = "rg" 748b3b94faaSDavid Teigland }; 749b3b94faaSDavid Teigland 750b3b94faaSDavid Teigland struct gfs2_log_operations gfs2_databuf_lops = { 751b3b94faaSDavid Teigland .lo_add = databuf_lo_add, 75218ec7d5cSSteven Whitehouse .lo_incore_commit = buf_lo_incore_commit, 753b3b94faaSDavid Teigland .lo_before_commit = databuf_lo_before_commit, 75418ec7d5cSSteven Whitehouse .lo_after_commit = databuf_lo_after_commit, 75518ec7d5cSSteven Whitehouse .lo_scan_elements = databuf_lo_scan_elements, 75618ec7d5cSSteven Whitehouse .lo_after_scan = databuf_lo_after_scan, 757b3b94faaSDavid Teigland .lo_name = "databuf" 758b3b94faaSDavid Teigland }; 759b3b94faaSDavid Teigland 760b3b94faaSDavid Teigland struct gfs2_log_operations *gfs2_log_ops[] = { 761b3b94faaSDavid Teigland &gfs2_glock_lops, 762b3b94faaSDavid Teigland &gfs2_buf_lops, 763b3b94faaSDavid Teigland &gfs2_revoke_lops, 764b3b94faaSDavid Teigland &gfs2_rg_lops, 765b3b94faaSDavid Teigland &gfs2_databuf_lops, 766b3b94faaSDavid Teigland NULL 767b3b94faaSDavid Teigland }; 768b3b94faaSDavid Teigland 769