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> 155c676f6dSSteven Whitehouse #include <linux/gfs2_ondisk.h> 16b3b94faaSDavid Teigland #include <asm/semaphore.h> 17b3b94faaSDavid Teigland 18b3b94faaSDavid Teigland #include "gfs2.h" 195c676f6dSSteven Whitehouse #include "lm_interface.h" 205c676f6dSSteven Whitehouse #include "incore.h" 21b3b94faaSDavid Teigland #include "glock.h" 22b3b94faaSDavid Teigland #include "log.h" 23b3b94faaSDavid Teigland #include "lops.h" 24b3b94faaSDavid Teigland #include "meta_io.h" 25b3b94faaSDavid Teigland #include "recovery.h" 26b3b94faaSDavid Teigland #include "rgrp.h" 27b3b94faaSDavid Teigland #include "trans.h" 285c676f6dSSteven Whitehouse #include "util.h" 29b3b94faaSDavid Teigland 30b3b94faaSDavid Teigland static void glock_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 31b3b94faaSDavid Teigland { 32b3b94faaSDavid Teigland struct gfs2_glock *gl; 335c676f6dSSteven Whitehouse struct gfs2_trans *tr = current->journal_info; 34b3b94faaSDavid Teigland 355c676f6dSSteven Whitehouse tr->tr_touched = 1; 36b3b94faaSDavid Teigland 37b3b94faaSDavid Teigland if (!list_empty(&le->le_list)) 38b3b94faaSDavid Teigland return; 39b3b94faaSDavid Teigland 40b3b94faaSDavid Teigland gl = container_of(le, struct gfs2_glock, gl_le); 41b3b94faaSDavid Teigland if (gfs2_assert_withdraw(sdp, gfs2_glock_is_held_excl(gl))) 42b3b94faaSDavid Teigland return; 43b3b94faaSDavid Teigland gfs2_glock_hold(gl); 44b3b94faaSDavid Teigland set_bit(GLF_DIRTY, &gl->gl_flags); 45b3b94faaSDavid Teigland 46b3b94faaSDavid Teigland gfs2_log_lock(sdp); 47b3b94faaSDavid Teigland sdp->sd_log_num_gl++; 48b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_gl); 49b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 50b3b94faaSDavid Teigland } 51b3b94faaSDavid Teigland 52b3b94faaSDavid Teigland static void glock_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) 53b3b94faaSDavid Teigland { 54b3b94faaSDavid Teigland struct list_head *head = &sdp->sd_log_le_gl; 55b3b94faaSDavid Teigland struct gfs2_glock *gl; 56b3b94faaSDavid Teigland 57b3b94faaSDavid Teigland while (!list_empty(head)) { 58b3b94faaSDavid Teigland gl = list_entry(head->next, struct gfs2_glock, gl_le.le_list); 59b3b94faaSDavid Teigland list_del_init(&gl->gl_le.le_list); 60b3b94faaSDavid Teigland sdp->sd_log_num_gl--; 61b3b94faaSDavid Teigland 62b3b94faaSDavid Teigland gfs2_assert_withdraw(sdp, gfs2_glock_is_held_excl(gl)); 63b3b94faaSDavid Teigland gfs2_glock_put(gl); 64b3b94faaSDavid Teigland } 65b3b94faaSDavid Teigland gfs2_assert_warn(sdp, !sdp->sd_log_num_gl); 66b3b94faaSDavid Teigland } 67b3b94faaSDavid Teigland 68b3b94faaSDavid Teigland static void buf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 69b3b94faaSDavid Teigland { 70b3b94faaSDavid Teigland struct gfs2_bufdata *bd = container_of(le, struct gfs2_bufdata, bd_le); 71b3b94faaSDavid Teigland struct gfs2_trans *tr; 72b3b94faaSDavid Teigland 73b3b94faaSDavid Teigland if (!list_empty(&bd->bd_list_tr)) 74b3b94faaSDavid Teigland return; 75b3b94faaSDavid Teigland 765c676f6dSSteven Whitehouse tr = current->journal_info; 77b3b94faaSDavid Teigland tr->tr_touched = 1; 78b3b94faaSDavid Teigland tr->tr_num_buf++; 79b3b94faaSDavid Teigland list_add(&bd->bd_list_tr, &tr->tr_list_buf); 80b3b94faaSDavid Teigland 81b3b94faaSDavid Teigland if (!list_empty(&le->le_list)) 82b3b94faaSDavid Teigland return; 83b3b94faaSDavid Teigland 84b3b94faaSDavid Teigland gfs2_trans_add_gl(bd->bd_gl); 85b3b94faaSDavid Teigland 86b3b94faaSDavid Teigland gfs2_meta_check(sdp, bd->bd_bh); 87a98ab220SSteven Whitehouse gfs2_pin(sdp, bd->bd_bh); 88b3b94faaSDavid Teigland 89b3b94faaSDavid Teigland gfs2_log_lock(sdp); 90b3b94faaSDavid Teigland sdp->sd_log_num_buf++; 91b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_buf); 92b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 93b3b94faaSDavid Teigland 94b3b94faaSDavid Teigland tr->tr_num_buf_new++; 95b3b94faaSDavid Teigland } 96b3b94faaSDavid Teigland 97b3b94faaSDavid Teigland static void buf_lo_incore_commit(struct gfs2_sbd *sdp, struct gfs2_trans *tr) 98b3b94faaSDavid Teigland { 99b3b94faaSDavid Teigland struct list_head *head = &tr->tr_list_buf; 100b3b94faaSDavid Teigland struct gfs2_bufdata *bd; 101b3b94faaSDavid Teigland 102b3b94faaSDavid Teigland while (!list_empty(head)) { 103b3b94faaSDavid Teigland bd = list_entry(head->next, struct gfs2_bufdata, bd_list_tr); 104b3b94faaSDavid Teigland list_del_init(&bd->bd_list_tr); 105b3b94faaSDavid Teigland tr->tr_num_buf--; 106b3b94faaSDavid Teigland } 107b3b94faaSDavid Teigland gfs2_assert_warn(sdp, !tr->tr_num_buf); 108b3b94faaSDavid Teigland } 109b3b94faaSDavid Teigland 110b3b94faaSDavid Teigland static void buf_lo_before_commit(struct gfs2_sbd *sdp) 111b3b94faaSDavid Teigland { 112b3b94faaSDavid Teigland struct buffer_head *bh; 113b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld; 114b3b94faaSDavid Teigland struct gfs2_bufdata *bd1 = NULL, *bd2; 115b3b94faaSDavid Teigland unsigned int total = sdp->sd_log_num_buf; 116b3b94faaSDavid Teigland unsigned int offset = sizeof(struct gfs2_log_descriptor); 117b3b94faaSDavid Teigland unsigned int limit; 118b3b94faaSDavid Teigland unsigned int num; 119b3b94faaSDavid Teigland unsigned n; 120b3b94faaSDavid Teigland __be64 *ptr; 121b3b94faaSDavid Teigland 122b3b94faaSDavid Teigland offset += (sizeof(__be64) - 1); 123b3b94faaSDavid Teigland offset &= ~(sizeof(__be64) - 1); 124b3b94faaSDavid Teigland limit = (sdp->sd_sb.sb_bsize - offset)/sizeof(__be64); 125b3b94faaSDavid Teigland /* for 4k blocks, limit = 503 */ 126b3b94faaSDavid Teigland 127b3b94faaSDavid Teigland bd1 = bd2 = list_prepare_entry(bd1, &sdp->sd_log_le_buf, bd_le.le_list); 128b3b94faaSDavid Teigland while(total) { 129b3b94faaSDavid Teigland num = total; 130b3b94faaSDavid Teigland if (total > limit) 131b3b94faaSDavid Teigland num = limit; 132b3b94faaSDavid Teigland bh = gfs2_log_get_buf(sdp); 133b09e593dSSteven Whitehouse sdp->sd_log_num_hdrs++; 134b3b94faaSDavid Teigland ld = (struct gfs2_log_descriptor *)bh->b_data; 135b3b94faaSDavid Teigland ptr = (__be64 *)(bh->b_data + offset); 136b3b94faaSDavid Teigland ld->ld_header.mh_magic = cpu_to_be32(GFS2_MAGIC); 137e3167dedSSteven Whitehouse ld->ld_header.mh_type = cpu_to_be32(GFS2_METATYPE_LD); 138e3167dedSSteven Whitehouse ld->ld_header.mh_format = cpu_to_be32(GFS2_FORMAT_LD); 139b3b94faaSDavid Teigland ld->ld_type = cpu_to_be32(GFS2_LOG_DESC_METADATA); 140b3b94faaSDavid Teigland ld->ld_length = cpu_to_be32(num + 1); 141b3b94faaSDavid Teigland ld->ld_data1 = cpu_to_be32(num); 142b3b94faaSDavid Teigland ld->ld_data2 = cpu_to_be32(0); 143b3b94faaSDavid Teigland memset(ld->ld_reserved, 0, sizeof(ld->ld_reserved)); 144b3b94faaSDavid Teigland 145b3b94faaSDavid Teigland n = 0; 146568f4c96SSteven Whitehouse list_for_each_entry_continue(bd1, &sdp->sd_log_le_buf, 147568f4c96SSteven Whitehouse bd_le.le_list) { 148b3b94faaSDavid Teigland *ptr++ = cpu_to_be64(bd1->bd_bh->b_blocknr); 149b3b94faaSDavid Teigland if (++n >= num) 150b3b94faaSDavid Teigland break; 151b3b94faaSDavid Teigland } 152b3b94faaSDavid Teigland 153b3b94faaSDavid Teigland set_buffer_dirty(bh); 154b3b94faaSDavid Teigland ll_rw_block(WRITE, 1, &bh); 155b3b94faaSDavid Teigland 156b3b94faaSDavid Teigland n = 0; 157568f4c96SSteven Whitehouse list_for_each_entry_continue(bd2, &sdp->sd_log_le_buf, 158568f4c96SSteven Whitehouse bd_le.le_list) { 159b3b94faaSDavid Teigland bh = gfs2_log_fake_buf(sdp, bd2->bd_bh); 160b3b94faaSDavid Teigland set_buffer_dirty(bh); 161b3b94faaSDavid Teigland ll_rw_block(WRITE, 1, &bh); 162b3b94faaSDavid Teigland if (++n >= num) 163b3b94faaSDavid Teigland break; 164b3b94faaSDavid Teigland } 165b3b94faaSDavid Teigland 166b3b94faaSDavid Teigland total -= num; 167b3b94faaSDavid Teigland } 168b3b94faaSDavid Teigland } 169b3b94faaSDavid Teigland 170b3b94faaSDavid Teigland static void buf_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) 171b3b94faaSDavid Teigland { 172b3b94faaSDavid Teigland struct list_head *head = &sdp->sd_log_le_buf; 173b3b94faaSDavid Teigland struct gfs2_bufdata *bd; 174b3b94faaSDavid Teigland 175b3b94faaSDavid Teigland while (!list_empty(head)) { 176b3b94faaSDavid Teigland bd = list_entry(head->next, struct gfs2_bufdata, bd_le.le_list); 177b3b94faaSDavid Teigland list_del_init(&bd->bd_le.le_list); 178b3b94faaSDavid Teigland sdp->sd_log_num_buf--; 179b3b94faaSDavid Teigland 180a98ab220SSteven Whitehouse gfs2_unpin(sdp, bd->bd_bh, ai); 181b3b94faaSDavid Teigland } 182b3b94faaSDavid Teigland gfs2_assert_warn(sdp, !sdp->sd_log_num_buf); 183b3b94faaSDavid Teigland } 184b3b94faaSDavid Teigland 185b3b94faaSDavid Teigland static void buf_lo_before_scan(struct gfs2_jdesc *jd, 186b3b94faaSDavid Teigland struct gfs2_log_header *head, int pass) 187b3b94faaSDavid Teigland { 1885c676f6dSSteven Whitehouse struct gfs2_inode *ip = jd->jd_inode->u.generic_ip; 1895c676f6dSSteven Whitehouse struct gfs2_sbd *sdp = ip->i_sbd; 190b3b94faaSDavid Teigland 191b3b94faaSDavid Teigland if (pass != 0) 192b3b94faaSDavid Teigland return; 193b3b94faaSDavid Teigland 194b3b94faaSDavid Teigland sdp->sd_found_blocks = 0; 195b3b94faaSDavid Teigland sdp->sd_replayed_blocks = 0; 196b3b94faaSDavid Teigland } 197b3b94faaSDavid Teigland 198b3b94faaSDavid Teigland static int buf_lo_scan_elements(struct gfs2_jdesc *jd, unsigned int start, 199b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld, __be64 *ptr, 200b3b94faaSDavid Teigland int pass) 201b3b94faaSDavid Teigland { 2025c676f6dSSteven Whitehouse struct gfs2_inode *ip = jd->jd_inode->u.generic_ip; 2035c676f6dSSteven Whitehouse struct gfs2_sbd *sdp = ip->i_sbd; 2045c676f6dSSteven Whitehouse struct gfs2_glock *gl = ip->i_gl; 205b3b94faaSDavid Teigland unsigned int blks = be32_to_cpu(ld->ld_data1); 206b3b94faaSDavid Teigland struct buffer_head *bh_log, *bh_ip; 207b3b94faaSDavid Teigland uint64_t blkno; 208b3b94faaSDavid Teigland int error = 0; 209b3b94faaSDavid Teigland 210b3b94faaSDavid Teigland if (pass != 1 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_METADATA) 211b3b94faaSDavid Teigland return 0; 212b3b94faaSDavid Teigland 213b3b94faaSDavid Teigland gfs2_replay_incr_blk(sdp, &start); 214b3b94faaSDavid Teigland 215b3b94faaSDavid Teigland for (; blks; gfs2_replay_incr_blk(sdp, &start), blks--) { 216b3b94faaSDavid Teigland blkno = be64_to_cpu(*ptr++); 217b3b94faaSDavid Teigland 218b3b94faaSDavid Teigland sdp->sd_found_blocks++; 219b3b94faaSDavid Teigland 220b3b94faaSDavid Teigland if (gfs2_revoke_check(sdp, blkno, start)) 221b3b94faaSDavid Teigland continue; 222b3b94faaSDavid Teigland 223b3b94faaSDavid Teigland error = gfs2_replay_read_block(jd, start, &bh_log); 224b3b94faaSDavid Teigland if (error) 225b3b94faaSDavid Teigland return error; 226b3b94faaSDavid Teigland 227b3b94faaSDavid Teigland bh_ip = gfs2_meta_new(gl, blkno); 228b3b94faaSDavid Teigland memcpy(bh_ip->b_data, bh_log->b_data, bh_log->b_size); 229b3b94faaSDavid Teigland 230b3b94faaSDavid Teigland if (gfs2_meta_check(sdp, bh_ip)) 231b3b94faaSDavid Teigland error = -EIO; 232b3b94faaSDavid Teigland else 233b3b94faaSDavid Teigland mark_buffer_dirty(bh_ip); 234b3b94faaSDavid Teigland 235b3b94faaSDavid Teigland brelse(bh_log); 236b3b94faaSDavid Teigland brelse(bh_ip); 237b3b94faaSDavid Teigland 238b3b94faaSDavid Teigland if (error) 239b3b94faaSDavid Teigland break; 240b3b94faaSDavid Teigland 241b3b94faaSDavid Teigland sdp->sd_replayed_blocks++; 242b3b94faaSDavid Teigland } 243b3b94faaSDavid Teigland 244b3b94faaSDavid Teigland return error; 245b3b94faaSDavid Teigland } 246b3b94faaSDavid Teigland 247b3b94faaSDavid Teigland static void buf_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass) 248b3b94faaSDavid Teigland { 2495c676f6dSSteven Whitehouse struct gfs2_inode *ip = jd->jd_inode->u.generic_ip; 2505c676f6dSSteven Whitehouse struct gfs2_sbd *sdp = ip->i_sbd; 251b3b94faaSDavid Teigland 252b3b94faaSDavid Teigland if (error) { 2535c676f6dSSteven Whitehouse gfs2_meta_sync(ip->i_gl, 254568f4c96SSteven Whitehouse DIO_START | DIO_WAIT); 255b3b94faaSDavid Teigland return; 256b3b94faaSDavid Teigland } 257b3b94faaSDavid Teigland if (pass != 1) 258b3b94faaSDavid Teigland return; 259b3b94faaSDavid Teigland 2605c676f6dSSteven Whitehouse gfs2_meta_sync(ip->i_gl, DIO_START | DIO_WAIT); 261b3b94faaSDavid Teigland 262b3b94faaSDavid Teigland fs_info(sdp, "jid=%u: Replayed %u of %u blocks\n", 263b3b94faaSDavid Teigland jd->jd_jid, sdp->sd_replayed_blocks, sdp->sd_found_blocks); 264b3b94faaSDavid Teigland } 265b3b94faaSDavid Teigland 266b3b94faaSDavid Teigland static void revoke_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 267b3b94faaSDavid Teigland { 268b3b94faaSDavid Teigland struct gfs2_trans *tr; 269b3b94faaSDavid Teigland 2705c676f6dSSteven Whitehouse tr = current->journal_info; 271b3b94faaSDavid Teigland tr->tr_touched = 1; 272b3b94faaSDavid Teigland tr->tr_num_revoke++; 273b3b94faaSDavid Teigland 274b3b94faaSDavid Teigland gfs2_log_lock(sdp); 275b3b94faaSDavid Teigland sdp->sd_log_num_revoke++; 276b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_revoke); 277b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 278b3b94faaSDavid Teigland } 279b3b94faaSDavid Teigland 280b3b94faaSDavid Teigland static void revoke_lo_before_commit(struct gfs2_sbd *sdp) 281b3b94faaSDavid Teigland { 282b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld; 283b3b94faaSDavid Teigland struct gfs2_meta_header *mh; 284b3b94faaSDavid Teigland struct buffer_head *bh; 285b3b94faaSDavid Teigland unsigned int offset; 286b3b94faaSDavid Teigland struct list_head *head = &sdp->sd_log_le_revoke; 287b3b94faaSDavid Teigland struct gfs2_revoke *rv; 288b3b94faaSDavid Teigland 289b3b94faaSDavid Teigland if (!sdp->sd_log_num_revoke) 290b3b94faaSDavid Teigland return; 291b3b94faaSDavid Teigland 292b3b94faaSDavid Teigland bh = gfs2_log_get_buf(sdp); 293b3b94faaSDavid Teigland ld = (struct gfs2_log_descriptor *)bh->b_data; 294b3b94faaSDavid Teigland ld->ld_header.mh_magic = cpu_to_be32(GFS2_MAGIC); 295e3167dedSSteven Whitehouse ld->ld_header.mh_type = cpu_to_be32(GFS2_METATYPE_LD); 296e3167dedSSteven Whitehouse ld->ld_header.mh_format = cpu_to_be32(GFS2_FORMAT_LD); 297b3b94faaSDavid Teigland ld->ld_type = cpu_to_be32(GFS2_LOG_DESC_REVOKE); 298568f4c96SSteven Whitehouse ld->ld_length = cpu_to_be32(gfs2_struct2blk(sdp, sdp->sd_log_num_revoke, 299568f4c96SSteven Whitehouse sizeof(uint64_t))); 300b3b94faaSDavid Teigland ld->ld_data1 = cpu_to_be32(sdp->sd_log_num_revoke); 301b3b94faaSDavid Teigland ld->ld_data2 = cpu_to_be32(0); 302b3b94faaSDavid Teigland memset(ld->ld_reserved, 0, sizeof(ld->ld_reserved)); 303b3b94faaSDavid Teigland offset = sizeof(struct gfs2_log_descriptor); 304b3b94faaSDavid Teigland 305b3b94faaSDavid Teigland while (!list_empty(head)) { 306b3b94faaSDavid Teigland rv = list_entry(head->next, struct gfs2_revoke, rv_le.le_list); 30713538b8eSSteven Whitehouse list_del_init(&rv->rv_le.le_list); 308b3b94faaSDavid Teigland sdp->sd_log_num_revoke--; 309b3b94faaSDavid Teigland 310b3b94faaSDavid Teigland if (offset + sizeof(uint64_t) > sdp->sd_sb.sb_bsize) { 311b3b94faaSDavid Teigland set_buffer_dirty(bh); 312b3b94faaSDavid Teigland ll_rw_block(WRITE, 1, &bh); 313b3b94faaSDavid Teigland 314b3b94faaSDavid Teigland bh = gfs2_log_get_buf(sdp); 315b3b94faaSDavid Teigland mh = (struct gfs2_meta_header *)bh->b_data; 316b3b94faaSDavid Teigland mh->mh_magic = cpu_to_be32(GFS2_MAGIC); 317e3167dedSSteven Whitehouse mh->mh_type = cpu_to_be32(GFS2_METATYPE_LB); 318e3167dedSSteven Whitehouse mh->mh_format = cpu_to_be32(GFS2_FORMAT_LB); 319b3b94faaSDavid Teigland offset = sizeof(struct gfs2_meta_header); 320b3b94faaSDavid Teigland } 321b3b94faaSDavid Teigland 322b3b94faaSDavid Teigland *(__be64 *)(bh->b_data + offset) = cpu_to_be64(rv->rv_blkno); 323b3b94faaSDavid Teigland kfree(rv); 324b3b94faaSDavid Teigland 325b3b94faaSDavid Teigland offset += sizeof(uint64_t); 326b3b94faaSDavid Teigland } 327b3b94faaSDavid Teigland gfs2_assert_withdraw(sdp, !sdp->sd_log_num_revoke); 328b3b94faaSDavid Teigland 329b3b94faaSDavid Teigland set_buffer_dirty(bh); 330b3b94faaSDavid Teigland ll_rw_block(WRITE, 1, &bh); 331b3b94faaSDavid Teigland } 332b3b94faaSDavid Teigland 333b3b94faaSDavid Teigland static void revoke_lo_before_scan(struct gfs2_jdesc *jd, 334b3b94faaSDavid Teigland struct gfs2_log_header *head, int pass) 335b3b94faaSDavid Teigland { 3365c676f6dSSteven Whitehouse struct gfs2_inode *ip = jd->jd_inode->u.generic_ip; 3375c676f6dSSteven Whitehouse struct gfs2_sbd *sdp = ip->i_sbd; 338b3b94faaSDavid Teigland 339b3b94faaSDavid Teigland if (pass != 0) 340b3b94faaSDavid Teigland return; 341b3b94faaSDavid Teigland 342b3b94faaSDavid Teigland sdp->sd_found_revokes = 0; 343b3b94faaSDavid Teigland sdp->sd_replay_tail = head->lh_tail; 344b3b94faaSDavid Teigland } 345b3b94faaSDavid Teigland 346b3b94faaSDavid Teigland static int revoke_lo_scan_elements(struct gfs2_jdesc *jd, unsigned int start, 347b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld, __be64 *ptr, 348b3b94faaSDavid Teigland int pass) 349b3b94faaSDavid Teigland { 3505c676f6dSSteven Whitehouse struct gfs2_inode *ip = jd->jd_inode->u.generic_ip; 3515c676f6dSSteven Whitehouse struct gfs2_sbd *sdp = ip->i_sbd; 352b3b94faaSDavid Teigland unsigned int blks = be32_to_cpu(ld->ld_length); 353b3b94faaSDavid Teigland unsigned int revokes = be32_to_cpu(ld->ld_data1); 354b3b94faaSDavid Teigland struct buffer_head *bh; 355b3b94faaSDavid Teigland unsigned int offset; 356b3b94faaSDavid Teigland uint64_t blkno; 357b3b94faaSDavid Teigland int first = 1; 358b3b94faaSDavid Teigland int error; 359b3b94faaSDavid Teigland 360b3b94faaSDavid Teigland if (pass != 0 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_REVOKE) 361b3b94faaSDavid Teigland return 0; 362b3b94faaSDavid Teigland 363b3b94faaSDavid Teigland offset = sizeof(struct gfs2_log_descriptor); 364b3b94faaSDavid Teigland 365b3b94faaSDavid Teigland for (; blks; gfs2_replay_incr_blk(sdp, &start), blks--) { 366b3b94faaSDavid Teigland error = gfs2_replay_read_block(jd, start, &bh); 367b3b94faaSDavid Teigland if (error) 368b3b94faaSDavid Teigland return error; 369b3b94faaSDavid Teigland 370b3b94faaSDavid Teigland if (!first) 371b3b94faaSDavid Teigland gfs2_metatype_check(sdp, bh, GFS2_METATYPE_LB); 372b3b94faaSDavid Teigland 373b3b94faaSDavid Teigland while (offset + sizeof(uint64_t) <= sdp->sd_sb.sb_bsize) { 374b3b94faaSDavid Teigland blkno = be64_to_cpu(*(__be64 *)(bh->b_data + offset)); 375b3b94faaSDavid Teigland 376b3b94faaSDavid Teigland error = gfs2_revoke_add(sdp, blkno, start); 377b3b94faaSDavid Teigland if (error < 0) 378b3b94faaSDavid Teigland return error; 379b3b94faaSDavid Teigland else if (error) 380b3b94faaSDavid Teigland sdp->sd_found_revokes++; 381b3b94faaSDavid Teigland 382b3b94faaSDavid Teigland if (!--revokes) 383b3b94faaSDavid Teigland break; 384b3b94faaSDavid Teigland offset += sizeof(uint64_t); 385b3b94faaSDavid Teigland } 386b3b94faaSDavid Teigland 387b3b94faaSDavid Teigland brelse(bh); 388b3b94faaSDavid Teigland offset = sizeof(struct gfs2_meta_header); 389b3b94faaSDavid Teigland first = 0; 390b3b94faaSDavid Teigland } 391b3b94faaSDavid Teigland 392b3b94faaSDavid Teigland return 0; 393b3b94faaSDavid Teigland } 394b3b94faaSDavid Teigland 395b3b94faaSDavid Teigland static void revoke_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass) 396b3b94faaSDavid Teigland { 3975c676f6dSSteven Whitehouse struct gfs2_inode *ip = jd->jd_inode->u.generic_ip; 3985c676f6dSSteven Whitehouse struct gfs2_sbd *sdp = ip->i_sbd; 399b3b94faaSDavid Teigland 400b3b94faaSDavid Teigland if (error) { 401b3b94faaSDavid Teigland gfs2_revoke_clean(sdp); 402b3b94faaSDavid Teigland return; 403b3b94faaSDavid Teigland } 404b3b94faaSDavid Teigland if (pass != 1) 405b3b94faaSDavid Teigland return; 406b3b94faaSDavid Teigland 407b3b94faaSDavid Teigland fs_info(sdp, "jid=%u: Found %u revoke tags\n", 408b3b94faaSDavid Teigland jd->jd_jid, sdp->sd_found_revokes); 409b3b94faaSDavid Teigland 410b3b94faaSDavid Teigland gfs2_revoke_clean(sdp); 411b3b94faaSDavid Teigland } 412b3b94faaSDavid Teigland 413b3b94faaSDavid Teigland static void rg_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 414b3b94faaSDavid Teigland { 415b3b94faaSDavid Teigland struct gfs2_rgrpd *rgd; 4165c676f6dSSteven Whitehouse struct gfs2_trans *tr = current->journal_info; 417b3b94faaSDavid Teigland 4185c676f6dSSteven Whitehouse tr->tr_touched = 1; 419b3b94faaSDavid Teigland 420b3b94faaSDavid Teigland if (!list_empty(&le->le_list)) 421b3b94faaSDavid Teigland return; 422b3b94faaSDavid Teigland 423b3b94faaSDavid Teigland rgd = container_of(le, struct gfs2_rgrpd, rd_le); 424b3b94faaSDavid Teigland gfs2_rgrp_bh_hold(rgd); 425b3b94faaSDavid Teigland 426b3b94faaSDavid Teigland gfs2_log_lock(sdp); 427b3b94faaSDavid Teigland sdp->sd_log_num_rg++; 428b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_rg); 429b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 430b3b94faaSDavid Teigland } 431b3b94faaSDavid Teigland 432b3b94faaSDavid Teigland static void rg_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) 433b3b94faaSDavid Teigland { 434b3b94faaSDavid Teigland struct list_head *head = &sdp->sd_log_le_rg; 435b3b94faaSDavid Teigland struct gfs2_rgrpd *rgd; 436b3b94faaSDavid Teigland 437b3b94faaSDavid Teigland while (!list_empty(head)) { 438b3b94faaSDavid Teigland rgd = list_entry(head->next, struct gfs2_rgrpd, rd_le.le_list); 439b3b94faaSDavid Teigland list_del_init(&rgd->rd_le.le_list); 440b3b94faaSDavid Teigland sdp->sd_log_num_rg--; 441b3b94faaSDavid Teigland 442b3b94faaSDavid Teigland gfs2_rgrp_repolish_clones(rgd); 443b3b94faaSDavid Teigland gfs2_rgrp_bh_put(rgd); 444b3b94faaSDavid Teigland } 445b3b94faaSDavid Teigland gfs2_assert_warn(sdp, !sdp->sd_log_num_rg); 446b3b94faaSDavid Teigland } 447b3b94faaSDavid Teigland 44818ec7d5cSSteven Whitehouse /** 44918ec7d5cSSteven Whitehouse * databuf_lo_add - Add a databuf to the transaction. 45018ec7d5cSSteven Whitehouse * 45118ec7d5cSSteven Whitehouse * This is used in two distinct cases: 45218ec7d5cSSteven Whitehouse * i) In ordered write mode 45318ec7d5cSSteven Whitehouse * We put the data buffer on a list so that we can ensure that its 45418ec7d5cSSteven Whitehouse * synced to disk at the right time 45518ec7d5cSSteven Whitehouse * ii) In journaled data mode 45618ec7d5cSSteven Whitehouse * We need to journal the data block in the same way as metadata in 45718ec7d5cSSteven Whitehouse * the functions above. The difference is that here we have a tag 45818ec7d5cSSteven Whitehouse * which is two __be64's being the block number (as per meta data) 45918ec7d5cSSteven Whitehouse * and a flag which says whether the data block needs escaping or 46018ec7d5cSSteven Whitehouse * not. This means we need a new log entry for each 251 or so data 46118ec7d5cSSteven Whitehouse * blocks, which isn't an enormous overhead but twice as much as 46218ec7d5cSSteven Whitehouse * for normal metadata blocks. 46318ec7d5cSSteven Whitehouse */ 464b3b94faaSDavid Teigland static void databuf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 465b3b94faaSDavid Teigland { 46618ec7d5cSSteven Whitehouse struct gfs2_bufdata *bd = container_of(le, struct gfs2_bufdata, bd_le); 4675c676f6dSSteven Whitehouse struct gfs2_trans *tr = current->journal_info; 46818ec7d5cSSteven Whitehouse struct address_space *mapping = bd->bd_bh->b_page->mapping; 4695c676f6dSSteven Whitehouse struct gfs2_inode *ip = mapping->host->u.generic_ip; 470b3b94faaSDavid Teigland 47118ec7d5cSSteven Whitehouse tr->tr_touched = 1; 47218ec7d5cSSteven Whitehouse if (!list_empty(&bd->bd_list_tr) && 47318ec7d5cSSteven Whitehouse (ip->i_di.di_flags & GFS2_DIF_JDATA)) { 47418ec7d5cSSteven Whitehouse tr->tr_num_buf++; 47518ec7d5cSSteven Whitehouse gfs2_trans_add_gl(bd->bd_gl); 47618ec7d5cSSteven Whitehouse list_add(&bd->bd_list_tr, &tr->tr_list_buf); 47718ec7d5cSSteven Whitehouse gfs2_pin(sdp, bd->bd_bh); 478b4dc7291SSteven Whitehouse tr->tr_num_buf_new++; 47918ec7d5cSSteven Whitehouse } 480b3b94faaSDavid Teigland gfs2_log_lock(sdp); 48113538b8eSSteven Whitehouse if (!list_empty(&le->le_list)) { 48218ec7d5cSSteven Whitehouse if (ip->i_di.di_flags & GFS2_DIF_JDATA) 48318ec7d5cSSteven Whitehouse sdp->sd_log_num_jdata++; 484b3b94faaSDavid Teigland sdp->sd_log_num_databuf++; 485b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_databuf); 48613538b8eSSteven Whitehouse } 487b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 488b3b94faaSDavid Teigland } 489b3b94faaSDavid Teigland 49018ec7d5cSSteven Whitehouse static int gfs2_check_magic(struct buffer_head *bh) 49118ec7d5cSSteven Whitehouse { 49218ec7d5cSSteven Whitehouse struct page *page = bh->b_page; 49318ec7d5cSSteven Whitehouse void *kaddr; 49418ec7d5cSSteven Whitehouse __be32 *ptr; 49518ec7d5cSSteven Whitehouse int rv = 0; 49618ec7d5cSSteven Whitehouse 49718ec7d5cSSteven Whitehouse kaddr = kmap_atomic(page, KM_USER0); 49818ec7d5cSSteven Whitehouse ptr = kaddr + bh_offset(bh); 49918ec7d5cSSteven Whitehouse if (*ptr == cpu_to_be32(GFS2_MAGIC)) 50018ec7d5cSSteven Whitehouse rv = 1; 50118ec7d5cSSteven Whitehouse kunmap_atomic(page, KM_USER0); 50218ec7d5cSSteven Whitehouse 50318ec7d5cSSteven Whitehouse return rv; 50418ec7d5cSSteven Whitehouse } 50518ec7d5cSSteven Whitehouse 50618ec7d5cSSteven Whitehouse /** 50718ec7d5cSSteven Whitehouse * databuf_lo_before_commit - Scan the data buffers, writing as we go 50818ec7d5cSSteven Whitehouse * 50918ec7d5cSSteven Whitehouse * Here we scan through the lists of buffers and make the assumption 51018ec7d5cSSteven Whitehouse * that any buffer thats been pinned is being journaled, and that 51118ec7d5cSSteven Whitehouse * any unpinned buffer is an ordered write data buffer and therefore 51218ec7d5cSSteven Whitehouse * will be written back rather than journaled. 51318ec7d5cSSteven Whitehouse */ 514b3b94faaSDavid Teigland static void databuf_lo_before_commit(struct gfs2_sbd *sdp) 515b3b94faaSDavid Teigland { 516b3b94faaSDavid Teigland LIST_HEAD(started); 51718ec7d5cSSteven Whitehouse struct gfs2_bufdata *bd1 = NULL, *bd2, *bdt; 51818ec7d5cSSteven Whitehouse struct buffer_head *bh = NULL; 51918ec7d5cSSteven Whitehouse unsigned int offset = sizeof(struct gfs2_log_descriptor); 52018ec7d5cSSteven Whitehouse struct gfs2_log_descriptor *ld; 52118ec7d5cSSteven Whitehouse unsigned int limit; 52218ec7d5cSSteven Whitehouse unsigned int total_dbuf = sdp->sd_log_num_databuf; 52318ec7d5cSSteven Whitehouse unsigned int total_jdata = sdp->sd_log_num_jdata; 52418ec7d5cSSteven Whitehouse unsigned int num, n; 525f55ab26aSSteven Whitehouse __be64 *ptr = NULL; 526b3b94faaSDavid Teigland 52718ec7d5cSSteven Whitehouse offset += (2*sizeof(__be64) - 1); 52818ec7d5cSSteven Whitehouse offset &= ~(2*sizeof(__be64) - 1); 52918ec7d5cSSteven Whitehouse limit = (sdp->sd_sb.sb_bsize - offset)/sizeof(__be64); 530b3b94faaSDavid Teigland 53118ec7d5cSSteven Whitehouse /* 53218ec7d5cSSteven Whitehouse * Start writing ordered buffers, write journaled buffers 53318ec7d5cSSteven Whitehouse * into the log along with a header 53418ec7d5cSSteven Whitehouse */ 535f55ab26aSSteven Whitehouse gfs2_log_lock(sdp); 536568f4c96SSteven Whitehouse bd2 = bd1 = list_prepare_entry(bd1, &sdp->sd_log_le_databuf, 537568f4c96SSteven Whitehouse bd_le.le_list); 53818ec7d5cSSteven Whitehouse while(total_dbuf) { 53918ec7d5cSSteven Whitehouse num = total_jdata; 54018ec7d5cSSteven Whitehouse if (num > limit) 54118ec7d5cSSteven Whitehouse num = limit; 54218ec7d5cSSteven Whitehouse n = 0; 543568f4c96SSteven Whitehouse list_for_each_entry_safe_continue(bd1, bdt, 544568f4c96SSteven Whitehouse &sdp->sd_log_le_databuf, 545568f4c96SSteven Whitehouse bd_le.le_list) { 54618ec7d5cSSteven Whitehouse /* An ordered write buffer */ 54718ec7d5cSSteven Whitehouse if (bd1->bd_bh && !buffer_pinned(bd1->bd_bh)) { 54818ec7d5cSSteven Whitehouse list_move(&bd1->bd_le.le_list, &started); 54918ec7d5cSSteven Whitehouse if (bd1 == bd2) { 55018ec7d5cSSteven Whitehouse bd2 = NULL; 551568f4c96SSteven Whitehouse bd2 = list_prepare_entry(bd2, 552568f4c96SSteven Whitehouse &sdp->sd_log_le_databuf, 553568f4c96SSteven Whitehouse bd_le.le_list); 55418ec7d5cSSteven Whitehouse } 55518ec7d5cSSteven Whitehouse total_dbuf--; 55618ec7d5cSSteven Whitehouse if (bd1->bd_bh) { 55718ec7d5cSSteven Whitehouse get_bh(bd1->bd_bh); 55818ec7d5cSSteven Whitehouse if (buffer_dirty(bd1->bd_bh)) { 559f55ab26aSSteven Whitehouse gfs2_log_unlock(sdp); 56018ec7d5cSSteven Whitehouse wait_on_buffer(bd1->bd_bh); 561568f4c96SSteven Whitehouse ll_rw_block(WRITE, 1, 562568f4c96SSteven Whitehouse &bd1->bd_bh); 563f55ab26aSSteven Whitehouse gfs2_log_lock(sdp); 56418ec7d5cSSteven Whitehouse } 56518ec7d5cSSteven Whitehouse brelse(bd1->bd_bh); 56618ec7d5cSSteven Whitehouse continue; 56718ec7d5cSSteven Whitehouse } 56818ec7d5cSSteven Whitehouse continue; 56918ec7d5cSSteven Whitehouse } else if (bd1->bd_bh) { /* A journaled buffer */ 57018ec7d5cSSteven Whitehouse int magic; 57118ec7d5cSSteven Whitehouse gfs2_log_unlock(sdp); 57218ec7d5cSSteven Whitehouse if (!bh) { 57318ec7d5cSSteven Whitehouse bh = gfs2_log_get_buf(sdp); 574b09e593dSSteven Whitehouse sdp->sd_log_num_hdrs++; 575568f4c96SSteven Whitehouse ld = (struct gfs2_log_descriptor *) 576568f4c96SSteven Whitehouse bh->b_data; 57718ec7d5cSSteven Whitehouse ptr = (__be64 *)(bh->b_data + offset); 578568f4c96SSteven Whitehouse ld->ld_header.mh_magic = 579568f4c96SSteven Whitehouse cpu_to_be32(GFS2_MAGIC); 580568f4c96SSteven Whitehouse ld->ld_header.mh_type = 581e3167dedSSteven Whitehouse cpu_to_be32(GFS2_METATYPE_LD); 582568f4c96SSteven Whitehouse ld->ld_header.mh_format = 583e3167dedSSteven Whitehouse cpu_to_be32(GFS2_FORMAT_LD); 584568f4c96SSteven Whitehouse ld->ld_type = 585568f4c96SSteven Whitehouse cpu_to_be32(GFS2_LOG_DESC_JDATA); 58618ec7d5cSSteven Whitehouse ld->ld_length = cpu_to_be32(num + 1); 58718ec7d5cSSteven Whitehouse ld->ld_data1 = cpu_to_be32(num); 58818ec7d5cSSteven Whitehouse ld->ld_data2 = cpu_to_be32(0); 58918ec7d5cSSteven Whitehouse memset(ld->ld_reserved, 0, sizeof(ld->ld_reserved)); 59018ec7d5cSSteven Whitehouse } 59118ec7d5cSSteven Whitehouse magic = gfs2_check_magic(bd1->bd_bh); 59218ec7d5cSSteven Whitehouse *ptr++ = cpu_to_be64(bd1->bd_bh->b_blocknr); 59318ec7d5cSSteven Whitehouse *ptr++ = cpu_to_be64((__u64)magic); 59418ec7d5cSSteven Whitehouse clear_buffer_escaped(bd1->bd_bh); 59518ec7d5cSSteven Whitehouse if (unlikely(magic != 0)) 59618ec7d5cSSteven Whitehouse set_buffer_escaped(bd1->bd_bh); 597f55ab26aSSteven Whitehouse gfs2_log_lock(sdp); 59818ec7d5cSSteven Whitehouse if (n++ > num) 59918ec7d5cSSteven Whitehouse break; 60018ec7d5cSSteven Whitehouse } 60118ec7d5cSSteven Whitehouse } 602f55ab26aSSteven Whitehouse gfs2_log_unlock(sdp); 603b3b94faaSDavid Teigland if (bh) { 60418ec7d5cSSteven Whitehouse set_buffer_dirty(bh); 605b3b94faaSDavid Teigland ll_rw_block(WRITE, 1, &bh); 60618ec7d5cSSteven Whitehouse bh = NULL; 607b3b94faaSDavid Teigland } 60818ec7d5cSSteven Whitehouse n = 0; 609f55ab26aSSteven Whitehouse gfs2_log_lock(sdp); 610568f4c96SSteven Whitehouse list_for_each_entry_continue(bd2, &sdp->sd_log_le_databuf, 611568f4c96SSteven Whitehouse bd_le.le_list) { 61218ec7d5cSSteven Whitehouse if (!bd2->bd_bh) 61318ec7d5cSSteven Whitehouse continue; 61418ec7d5cSSteven Whitehouse /* copy buffer if it needs escaping */ 615f55ab26aSSteven Whitehouse gfs2_log_unlock(sdp); 61618ec7d5cSSteven Whitehouse if (unlikely(buffer_escaped(bd2->bd_bh))) { 61718ec7d5cSSteven Whitehouse void *kaddr; 61818ec7d5cSSteven Whitehouse struct page *page = bd2->bd_bh->b_page; 61918ec7d5cSSteven Whitehouse bh = gfs2_log_get_buf(sdp); 62018ec7d5cSSteven Whitehouse kaddr = kmap_atomic(page, KM_USER0); 621568f4c96SSteven Whitehouse memcpy(bh->b_data, 622568f4c96SSteven Whitehouse kaddr + bh_offset(bd2->bd_bh), 623568f4c96SSteven Whitehouse sdp->sd_sb.sb_bsize); 62418ec7d5cSSteven Whitehouse kunmap_atomic(page, KM_USER0); 62518ec7d5cSSteven Whitehouse *(__be32 *)bh->b_data = 0; 62618ec7d5cSSteven Whitehouse } else { 62718ec7d5cSSteven Whitehouse bh = gfs2_log_fake_buf(sdp, bd2->bd_bh); 628b3b94faaSDavid Teigland } 62918ec7d5cSSteven Whitehouse set_buffer_dirty(bh); 63018ec7d5cSSteven Whitehouse ll_rw_block(WRITE, 1, &bh); 631f55ab26aSSteven Whitehouse gfs2_log_lock(sdp); 63218ec7d5cSSteven Whitehouse if (++n >= num) 63318ec7d5cSSteven Whitehouse break; 63418ec7d5cSSteven Whitehouse } 63518ec7d5cSSteven Whitehouse bh = NULL; 63618ec7d5cSSteven Whitehouse total_dbuf -= num; 63718ec7d5cSSteven Whitehouse total_jdata -= num; 63818ec7d5cSSteven Whitehouse } 639f55ab26aSSteven Whitehouse gfs2_log_unlock(sdp); 640f55ab26aSSteven Whitehouse 64118ec7d5cSSteven Whitehouse /* Wait on all ordered buffers */ 642b3b94faaSDavid Teigland while (!list_empty(&started)) { 64313538b8eSSteven Whitehouse gfs2_log_lock(sdp); 644568f4c96SSteven Whitehouse bd1 = list_entry(started.next, struct gfs2_bufdata, 645568f4c96SSteven Whitehouse bd_le.le_list); 64618ec7d5cSSteven Whitehouse list_del(&bd1->bd_le.le_list); 647b3b94faaSDavid Teigland sdp->sd_log_num_databuf--; 648b3b94faaSDavid Teigland 64918ec7d5cSSteven Whitehouse bh = bd1->bd_bh; 650b3b94faaSDavid Teigland if (bh) { 6515c676f6dSSteven Whitehouse bh->b_private = NULL; 652b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 653b3b94faaSDavid Teigland wait_on_buffer(bh); 654b3b94faaSDavid Teigland brelse(bh); 655b3b94faaSDavid Teigland } else 656b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 657b3b94faaSDavid Teigland 65818ec7d5cSSteven Whitehouse kfree(bd1); 659b3b94faaSDavid Teigland } 660b3b94faaSDavid Teigland 66118ec7d5cSSteven Whitehouse /* We've removed all the ordered write bufs here, so only jdata left */ 66218ec7d5cSSteven Whitehouse gfs2_assert_warn(sdp, sdp->sd_log_num_databuf == sdp->sd_log_num_jdata); 663b3b94faaSDavid Teigland } 664b3b94faaSDavid Teigland 66518ec7d5cSSteven Whitehouse static int databuf_lo_scan_elements(struct gfs2_jdesc *jd, unsigned int start, 66618ec7d5cSSteven Whitehouse struct gfs2_log_descriptor *ld, 66718ec7d5cSSteven Whitehouse __be64 *ptr, int pass) 66818ec7d5cSSteven Whitehouse { 6695c676f6dSSteven Whitehouse struct gfs2_inode *ip = jd->jd_inode->u.generic_ip; 6705c676f6dSSteven Whitehouse struct gfs2_sbd *sdp = ip->i_sbd; 6715c676f6dSSteven Whitehouse struct gfs2_glock *gl = ip->i_gl; 67218ec7d5cSSteven Whitehouse unsigned int blks = be32_to_cpu(ld->ld_data1); 67318ec7d5cSSteven Whitehouse struct buffer_head *bh_log, *bh_ip; 67418ec7d5cSSteven Whitehouse uint64_t blkno; 67518ec7d5cSSteven Whitehouse uint64_t esc; 67618ec7d5cSSteven Whitehouse int error = 0; 67718ec7d5cSSteven Whitehouse 67818ec7d5cSSteven Whitehouse if (pass != 1 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_JDATA) 67918ec7d5cSSteven Whitehouse return 0; 68018ec7d5cSSteven Whitehouse 68118ec7d5cSSteven Whitehouse gfs2_replay_incr_blk(sdp, &start); 68218ec7d5cSSteven Whitehouse for (; blks; gfs2_replay_incr_blk(sdp, &start), blks--) { 68318ec7d5cSSteven Whitehouse blkno = be64_to_cpu(*ptr++); 68418ec7d5cSSteven Whitehouse esc = be64_to_cpu(*ptr++); 68518ec7d5cSSteven Whitehouse 68618ec7d5cSSteven Whitehouse sdp->sd_found_blocks++; 68718ec7d5cSSteven Whitehouse 68818ec7d5cSSteven Whitehouse if (gfs2_revoke_check(sdp, blkno, start)) 68918ec7d5cSSteven Whitehouse continue; 69018ec7d5cSSteven Whitehouse 69118ec7d5cSSteven Whitehouse error = gfs2_replay_read_block(jd, start, &bh_log); 69218ec7d5cSSteven Whitehouse if (error) 69318ec7d5cSSteven Whitehouse return error; 69418ec7d5cSSteven Whitehouse 69518ec7d5cSSteven Whitehouse bh_ip = gfs2_meta_new(gl, blkno); 69618ec7d5cSSteven Whitehouse memcpy(bh_ip->b_data, bh_log->b_data, bh_log->b_size); 69718ec7d5cSSteven Whitehouse 69818ec7d5cSSteven Whitehouse /* Unescape */ 69918ec7d5cSSteven Whitehouse if (esc) { 70018ec7d5cSSteven Whitehouse __be32 *eptr = (__be32 *)bh_ip->b_data; 70118ec7d5cSSteven Whitehouse *eptr = cpu_to_be32(GFS2_MAGIC); 70218ec7d5cSSteven Whitehouse } 70318ec7d5cSSteven Whitehouse mark_buffer_dirty(bh_ip); 70418ec7d5cSSteven Whitehouse 70518ec7d5cSSteven Whitehouse brelse(bh_log); 70618ec7d5cSSteven Whitehouse brelse(bh_ip); 70718ec7d5cSSteven Whitehouse if (error) 70818ec7d5cSSteven Whitehouse break; 70918ec7d5cSSteven Whitehouse 71018ec7d5cSSteven Whitehouse sdp->sd_replayed_blocks++; 71118ec7d5cSSteven Whitehouse } 71218ec7d5cSSteven Whitehouse 71318ec7d5cSSteven Whitehouse return error; 71418ec7d5cSSteven Whitehouse } 71518ec7d5cSSteven Whitehouse 71618ec7d5cSSteven Whitehouse /* FIXME: sort out accounting for log blocks etc. */ 71718ec7d5cSSteven Whitehouse 71818ec7d5cSSteven Whitehouse static void databuf_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass) 71918ec7d5cSSteven Whitehouse { 7205c676f6dSSteven Whitehouse struct gfs2_inode *ip = jd->jd_inode->u.generic_ip; 7215c676f6dSSteven Whitehouse struct gfs2_sbd *sdp = ip->i_sbd; 72218ec7d5cSSteven Whitehouse 72318ec7d5cSSteven Whitehouse if (error) { 7245c676f6dSSteven Whitehouse gfs2_meta_sync(ip->i_gl, 725568f4c96SSteven Whitehouse DIO_START | DIO_WAIT); 72618ec7d5cSSteven Whitehouse return; 72718ec7d5cSSteven Whitehouse } 72818ec7d5cSSteven Whitehouse if (pass != 1) 72918ec7d5cSSteven Whitehouse return; 73018ec7d5cSSteven Whitehouse 73118ec7d5cSSteven Whitehouse /* data sync? */ 7325c676f6dSSteven Whitehouse gfs2_meta_sync(ip->i_gl, DIO_START | DIO_WAIT); 73318ec7d5cSSteven Whitehouse 73418ec7d5cSSteven Whitehouse fs_info(sdp, "jid=%u: Replayed %u of %u data blocks\n", 73518ec7d5cSSteven Whitehouse jd->jd_jid, sdp->sd_replayed_blocks, sdp->sd_found_blocks); 73618ec7d5cSSteven Whitehouse } 73718ec7d5cSSteven Whitehouse 73818ec7d5cSSteven Whitehouse static void databuf_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) 73918ec7d5cSSteven Whitehouse { 74018ec7d5cSSteven Whitehouse struct list_head *head = &sdp->sd_log_le_databuf; 74118ec7d5cSSteven Whitehouse struct gfs2_bufdata *bd; 74218ec7d5cSSteven Whitehouse 74318ec7d5cSSteven Whitehouse while (!list_empty(head)) { 74418ec7d5cSSteven Whitehouse bd = list_entry(head->next, struct gfs2_bufdata, bd_le.le_list); 745f55ab26aSSteven Whitehouse list_del(&bd->bd_le.le_list); 74618ec7d5cSSteven Whitehouse sdp->sd_log_num_databuf--; 74718ec7d5cSSteven Whitehouse sdp->sd_log_num_jdata--; 74818ec7d5cSSteven Whitehouse gfs2_unpin(sdp, bd->bd_bh, ai); 74918ec7d5cSSteven Whitehouse } 75018ec7d5cSSteven Whitehouse gfs2_assert_warn(sdp, !sdp->sd_log_num_databuf); 75118ec7d5cSSteven Whitehouse gfs2_assert_warn(sdp, !sdp->sd_log_num_jdata); 75218ec7d5cSSteven Whitehouse } 75318ec7d5cSSteven Whitehouse 75418ec7d5cSSteven Whitehouse 755b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_glock_lops = { 756b3b94faaSDavid Teigland .lo_add = glock_lo_add, 757b3b94faaSDavid Teigland .lo_after_commit = glock_lo_after_commit, 758b3b94faaSDavid Teigland .lo_name = "glock" 759b3b94faaSDavid Teigland }; 760b3b94faaSDavid Teigland 761b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_buf_lops = { 762b3b94faaSDavid Teigland .lo_add = buf_lo_add, 763b3b94faaSDavid Teigland .lo_incore_commit = buf_lo_incore_commit, 764b3b94faaSDavid Teigland .lo_before_commit = buf_lo_before_commit, 765b3b94faaSDavid Teigland .lo_after_commit = buf_lo_after_commit, 766b3b94faaSDavid Teigland .lo_before_scan = buf_lo_before_scan, 767b3b94faaSDavid Teigland .lo_scan_elements = buf_lo_scan_elements, 768b3b94faaSDavid Teigland .lo_after_scan = buf_lo_after_scan, 769b3b94faaSDavid Teigland .lo_name = "buf" 770b3b94faaSDavid Teigland }; 771b3b94faaSDavid Teigland 772b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_revoke_lops = { 773b3b94faaSDavid Teigland .lo_add = revoke_lo_add, 774b3b94faaSDavid Teigland .lo_before_commit = revoke_lo_before_commit, 775b3b94faaSDavid Teigland .lo_before_scan = revoke_lo_before_scan, 776b3b94faaSDavid Teigland .lo_scan_elements = revoke_lo_scan_elements, 777b3b94faaSDavid Teigland .lo_after_scan = revoke_lo_after_scan, 778b3b94faaSDavid Teigland .lo_name = "revoke" 779b3b94faaSDavid Teigland }; 780b3b94faaSDavid Teigland 781b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_rg_lops = { 782b3b94faaSDavid Teigland .lo_add = rg_lo_add, 783b3b94faaSDavid Teigland .lo_after_commit = rg_lo_after_commit, 784b3b94faaSDavid Teigland .lo_name = "rg" 785b3b94faaSDavid Teigland }; 786b3b94faaSDavid Teigland 787b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_databuf_lops = { 788b3b94faaSDavid Teigland .lo_add = databuf_lo_add, 78918ec7d5cSSteven Whitehouse .lo_incore_commit = buf_lo_incore_commit, 790b3b94faaSDavid Teigland .lo_before_commit = databuf_lo_before_commit, 79118ec7d5cSSteven Whitehouse .lo_after_commit = databuf_lo_after_commit, 79218ec7d5cSSteven Whitehouse .lo_scan_elements = databuf_lo_scan_elements, 79318ec7d5cSSteven Whitehouse .lo_after_scan = databuf_lo_after_scan, 794b3b94faaSDavid Teigland .lo_name = "databuf" 795b3b94faaSDavid Teigland }; 796b3b94faaSDavid Teigland 797b09e593dSSteven Whitehouse const struct gfs2_log_operations *gfs2_log_ops[] = { 798b3b94faaSDavid Teigland &gfs2_glock_lops, 799b3b94faaSDavid Teigland &gfs2_buf_lops, 800b3b94faaSDavid Teigland &gfs2_revoke_lops, 801b3b94faaSDavid Teigland &gfs2_rg_lops, 802b3b94faaSDavid Teigland &gfs2_databuf_lops, 803b3b94faaSDavid Teigland NULL 804b3b94faaSDavid Teigland }; 805b3b94faaSDavid Teigland 806