1b3b94faaSDavid Teigland /* 2b3b94faaSDavid Teigland * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. 33a8a9a10SSteven Whitehouse * Copyright (C) 2004-2006 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 7e9fc2aa0SSteven Whitehouse * of the GNU General Public License version 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> 167d308590SFabio Massimo Di Nitto #include <linux/lm_interface.h> 17b3b94faaSDavid Teigland 18b3b94faaSDavid Teigland #include "gfs2.h" 195c676f6dSSteven Whitehouse #include "incore.h" 20b3b94faaSDavid Teigland #include "glock.h" 21b3b94faaSDavid Teigland #include "log.h" 22b3b94faaSDavid Teigland #include "lops.h" 23b3b94faaSDavid Teigland #include "meta_io.h" 24b3b94faaSDavid Teigland #include "recovery.h" 25b3b94faaSDavid Teigland #include "rgrp.h" 26b3b94faaSDavid Teigland #include "trans.h" 275c676f6dSSteven Whitehouse #include "util.h" 28b3b94faaSDavid Teigland 29b3b94faaSDavid Teigland static void glock_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 30b3b94faaSDavid Teigland { 31b3b94faaSDavid Teigland struct gfs2_glock *gl; 325c676f6dSSteven Whitehouse struct gfs2_trans *tr = current->journal_info; 33b3b94faaSDavid Teigland 345c676f6dSSteven Whitehouse tr->tr_touched = 1; 35b3b94faaSDavid Teigland 36b3b94faaSDavid Teigland if (!list_empty(&le->le_list)) 37b3b94faaSDavid Teigland return; 38b3b94faaSDavid Teigland 39b3b94faaSDavid Teigland gl = container_of(le, struct gfs2_glock, gl_le); 40b3b94faaSDavid Teigland if (gfs2_assert_withdraw(sdp, gfs2_glock_is_held_excl(gl))) 41b3b94faaSDavid Teigland return; 42b3b94faaSDavid Teigland gfs2_glock_hold(gl); 43b3b94faaSDavid Teigland set_bit(GLF_DIRTY, &gl->gl_flags); 44b3b94faaSDavid Teigland 45b3b94faaSDavid Teigland gfs2_log_lock(sdp); 46b3b94faaSDavid Teigland sdp->sd_log_num_gl++; 47b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_gl); 48b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 49b3b94faaSDavid Teigland } 50b3b94faaSDavid Teigland 51b3b94faaSDavid Teigland static void glock_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) 52b3b94faaSDavid Teigland { 53b3b94faaSDavid Teigland struct list_head *head = &sdp->sd_log_le_gl; 54b3b94faaSDavid Teigland struct gfs2_glock *gl; 55b3b94faaSDavid Teigland 56b3b94faaSDavid Teigland while (!list_empty(head)) { 57b3b94faaSDavid Teigland gl = list_entry(head->next, struct gfs2_glock, gl_le.le_list); 58b3b94faaSDavid Teigland list_del_init(&gl->gl_le.le_list); 59b3b94faaSDavid Teigland sdp->sd_log_num_gl--; 60b3b94faaSDavid Teigland 61b3b94faaSDavid Teigland gfs2_assert_withdraw(sdp, gfs2_glock_is_held_excl(gl)); 62b3b94faaSDavid Teigland gfs2_glock_put(gl); 63b3b94faaSDavid Teigland } 64b3b94faaSDavid Teigland gfs2_assert_warn(sdp, !sdp->sd_log_num_gl); 65b3b94faaSDavid Teigland } 66b3b94faaSDavid Teigland 67b3b94faaSDavid Teigland static void buf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 68b3b94faaSDavid Teigland { 69b3b94faaSDavid Teigland struct gfs2_bufdata *bd = container_of(le, struct gfs2_bufdata, bd_le); 70b3b94faaSDavid Teigland struct gfs2_trans *tr; 71b3b94faaSDavid Teigland 72b3b94faaSDavid Teigland if (!list_empty(&bd->bd_list_tr)) 73b3b94faaSDavid Teigland return; 74b3b94faaSDavid Teigland 755c676f6dSSteven Whitehouse tr = current->journal_info; 76b3b94faaSDavid Teigland tr->tr_touched = 1; 77b3b94faaSDavid Teigland tr->tr_num_buf++; 78b3b94faaSDavid Teigland list_add(&bd->bd_list_tr, &tr->tr_list_buf); 79b3b94faaSDavid Teigland 80b3b94faaSDavid Teigland if (!list_empty(&le->le_list)) 81b3b94faaSDavid Teigland return; 82b3b94faaSDavid Teigland 83b3b94faaSDavid Teigland gfs2_trans_add_gl(bd->bd_gl); 84b3b94faaSDavid Teigland 85b3b94faaSDavid Teigland gfs2_meta_check(sdp, bd->bd_bh); 86a98ab220SSteven Whitehouse gfs2_pin(sdp, bd->bd_bh); 87b3b94faaSDavid Teigland 88b3b94faaSDavid Teigland gfs2_log_lock(sdp); 89b3b94faaSDavid Teigland sdp->sd_log_num_buf++; 90b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_buf); 91b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 92b3b94faaSDavid Teigland 93b3b94faaSDavid Teigland tr->tr_num_buf_new++; 94b3b94faaSDavid Teigland } 95b3b94faaSDavid Teigland 96b3b94faaSDavid Teigland static void buf_lo_incore_commit(struct gfs2_sbd *sdp, struct gfs2_trans *tr) 97b3b94faaSDavid Teigland { 98b3b94faaSDavid Teigland struct list_head *head = &tr->tr_list_buf; 99b3b94faaSDavid Teigland struct gfs2_bufdata *bd; 100b3b94faaSDavid Teigland 101b3b94faaSDavid Teigland while (!list_empty(head)) { 102b3b94faaSDavid Teigland bd = list_entry(head->next, struct gfs2_bufdata, bd_list_tr); 103b3b94faaSDavid Teigland list_del_init(&bd->bd_list_tr); 104b3b94faaSDavid Teigland tr->tr_num_buf--; 105b3b94faaSDavid Teigland } 106b3b94faaSDavid Teigland gfs2_assert_warn(sdp, !tr->tr_num_buf); 107b3b94faaSDavid Teigland } 108b3b94faaSDavid Teigland 109b3b94faaSDavid Teigland static void buf_lo_before_commit(struct gfs2_sbd *sdp) 110b3b94faaSDavid Teigland { 111b3b94faaSDavid Teigland struct buffer_head *bh; 112b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld; 113b3b94faaSDavid Teigland struct gfs2_bufdata *bd1 = NULL, *bd2; 114b3b94faaSDavid Teigland unsigned int total = sdp->sd_log_num_buf; 115b3b94faaSDavid Teigland unsigned int offset = sizeof(struct gfs2_log_descriptor); 116b3b94faaSDavid Teigland unsigned int limit; 117b3b94faaSDavid Teigland unsigned int num; 118b3b94faaSDavid Teigland unsigned n; 119b3b94faaSDavid Teigland __be64 *ptr; 120b3b94faaSDavid Teigland 12182ffa516SSteven Whitehouse offset += sizeof(__be64) - 1; 122b3b94faaSDavid Teigland offset &= ~(sizeof(__be64) - 1); 123b3b94faaSDavid Teigland limit = (sdp->sd_sb.sb_bsize - offset)/sizeof(__be64); 124b3b94faaSDavid Teigland /* for 4k blocks, limit = 503 */ 125b3b94faaSDavid Teigland 126b3b94faaSDavid Teigland bd1 = bd2 = list_prepare_entry(bd1, &sdp->sd_log_le_buf, bd_le.le_list); 127b3b94faaSDavid Teigland while(total) { 128b3b94faaSDavid Teigland num = total; 129b3b94faaSDavid Teigland if (total > limit) 130b3b94faaSDavid Teigland num = limit; 131b3b94faaSDavid Teigland bh = gfs2_log_get_buf(sdp); 132b09e593dSSteven Whitehouse sdp->sd_log_num_hdrs++; 133b3b94faaSDavid Teigland ld = (struct gfs2_log_descriptor *)bh->b_data; 134b3b94faaSDavid Teigland ptr = (__be64 *)(bh->b_data + offset); 135b3b94faaSDavid Teigland ld->ld_header.mh_magic = cpu_to_be32(GFS2_MAGIC); 136e3167dedSSteven Whitehouse ld->ld_header.mh_type = cpu_to_be32(GFS2_METATYPE_LD); 137e3167dedSSteven Whitehouse ld->ld_header.mh_format = cpu_to_be32(GFS2_FORMAT_LD); 138b3b94faaSDavid Teigland ld->ld_type = cpu_to_be32(GFS2_LOG_DESC_METADATA); 139b3b94faaSDavid Teigland ld->ld_length = cpu_to_be32(num + 1); 140b3b94faaSDavid Teigland ld->ld_data1 = cpu_to_be32(num); 141b3b94faaSDavid Teigland ld->ld_data2 = cpu_to_be32(0); 142b3b94faaSDavid Teigland memset(ld->ld_reserved, 0, sizeof(ld->ld_reserved)); 143b3b94faaSDavid Teigland 144b3b94faaSDavid Teigland n = 0; 145568f4c96SSteven Whitehouse list_for_each_entry_continue(bd1, &sdp->sd_log_le_buf, 146568f4c96SSteven Whitehouse bd_le.le_list) { 147b3b94faaSDavid Teigland *ptr++ = cpu_to_be64(bd1->bd_bh->b_blocknr); 148b3b94faaSDavid Teigland if (++n >= num) 149b3b94faaSDavid Teigland break; 150b3b94faaSDavid Teigland } 151b3b94faaSDavid Teigland 152b3b94faaSDavid Teigland set_buffer_dirty(bh); 153b3b94faaSDavid Teigland ll_rw_block(WRITE, 1, &bh); 154b3b94faaSDavid Teigland 155b3b94faaSDavid Teigland n = 0; 156568f4c96SSteven Whitehouse list_for_each_entry_continue(bd2, &sdp->sd_log_le_buf, 157568f4c96SSteven Whitehouse bd_le.le_list) { 158b3b94faaSDavid Teigland bh = gfs2_log_fake_buf(sdp, bd2->bd_bh); 159b3b94faaSDavid Teigland set_buffer_dirty(bh); 160b3b94faaSDavid Teigland ll_rw_block(WRITE, 1, &bh); 161b3b94faaSDavid Teigland if (++n >= num) 162b3b94faaSDavid Teigland break; 163b3b94faaSDavid Teigland } 164b3b94faaSDavid Teigland 165b3b94faaSDavid Teigland total -= num; 166b3b94faaSDavid Teigland } 167b3b94faaSDavid Teigland } 168b3b94faaSDavid Teigland 169b3b94faaSDavid Teigland static void buf_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) 170b3b94faaSDavid Teigland { 171b3b94faaSDavid Teigland struct list_head *head = &sdp->sd_log_le_buf; 172b3b94faaSDavid Teigland struct gfs2_bufdata *bd; 173b3b94faaSDavid Teigland 174b3b94faaSDavid Teigland while (!list_empty(head)) { 175b3b94faaSDavid Teigland bd = list_entry(head->next, struct gfs2_bufdata, bd_le.le_list); 176b3b94faaSDavid Teigland list_del_init(&bd->bd_le.le_list); 177b3b94faaSDavid Teigland sdp->sd_log_num_buf--; 178b3b94faaSDavid Teigland 179a98ab220SSteven Whitehouse gfs2_unpin(sdp, bd->bd_bh, ai); 180b3b94faaSDavid Teigland } 181b3b94faaSDavid Teigland gfs2_assert_warn(sdp, !sdp->sd_log_num_buf); 182b3b94faaSDavid Teigland } 183b3b94faaSDavid Teigland 184b3b94faaSDavid Teigland static void buf_lo_before_scan(struct gfs2_jdesc *jd, 185b3b94faaSDavid Teigland struct gfs2_log_header *head, int pass) 186b3b94faaSDavid Teigland { 187feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 188b3b94faaSDavid Teigland 189b3b94faaSDavid Teigland if (pass != 0) 190b3b94faaSDavid Teigland return; 191b3b94faaSDavid Teigland 192b3b94faaSDavid Teigland sdp->sd_found_blocks = 0; 193b3b94faaSDavid Teigland sdp->sd_replayed_blocks = 0; 194b3b94faaSDavid Teigland } 195b3b94faaSDavid Teigland 196b3b94faaSDavid Teigland static int buf_lo_scan_elements(struct gfs2_jdesc *jd, unsigned int start, 197b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld, __be64 *ptr, 198b3b94faaSDavid Teigland int pass) 199b3b94faaSDavid Teigland { 200feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(jd->jd_inode); 201feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 2025c676f6dSSteven Whitehouse struct gfs2_glock *gl = ip->i_gl; 203b3b94faaSDavid Teigland unsigned int blks = be32_to_cpu(ld->ld_data1); 204b3b94faaSDavid Teigland struct buffer_head *bh_log, *bh_ip; 205cd915493SSteven Whitehouse u64 blkno; 206b3b94faaSDavid Teigland int error = 0; 207b3b94faaSDavid Teigland 208b3b94faaSDavid Teigland if (pass != 1 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_METADATA) 209b3b94faaSDavid Teigland return 0; 210b3b94faaSDavid Teigland 211b3b94faaSDavid Teigland gfs2_replay_incr_blk(sdp, &start); 212b3b94faaSDavid Teigland 213b3b94faaSDavid Teigland for (; blks; gfs2_replay_incr_blk(sdp, &start), blks--) { 214b3b94faaSDavid Teigland blkno = be64_to_cpu(*ptr++); 215b3b94faaSDavid Teigland 216b3b94faaSDavid Teigland sdp->sd_found_blocks++; 217b3b94faaSDavid Teigland 218b3b94faaSDavid Teigland if (gfs2_revoke_check(sdp, blkno, start)) 219b3b94faaSDavid Teigland continue; 220b3b94faaSDavid Teigland 221b3b94faaSDavid Teigland error = gfs2_replay_read_block(jd, start, &bh_log); 222b3b94faaSDavid Teigland if (error) 223b3b94faaSDavid Teigland return error; 224b3b94faaSDavid Teigland 225b3b94faaSDavid Teigland bh_ip = gfs2_meta_new(gl, blkno); 226b3b94faaSDavid Teigland memcpy(bh_ip->b_data, bh_log->b_data, bh_log->b_size); 227b3b94faaSDavid Teigland 228b3b94faaSDavid Teigland if (gfs2_meta_check(sdp, bh_ip)) 229b3b94faaSDavid Teigland error = -EIO; 230b3b94faaSDavid Teigland else 231b3b94faaSDavid Teigland mark_buffer_dirty(bh_ip); 232b3b94faaSDavid Teigland 233b3b94faaSDavid Teigland brelse(bh_log); 234b3b94faaSDavid Teigland brelse(bh_ip); 235b3b94faaSDavid Teigland 236b3b94faaSDavid Teigland if (error) 237b3b94faaSDavid Teigland break; 238b3b94faaSDavid Teigland 239b3b94faaSDavid Teigland sdp->sd_replayed_blocks++; 240b3b94faaSDavid Teigland } 241b3b94faaSDavid Teigland 242b3b94faaSDavid Teigland return error; 243b3b94faaSDavid Teigland } 244b3b94faaSDavid Teigland 245b3b94faaSDavid Teigland static void buf_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass) 246b3b94faaSDavid Teigland { 247feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(jd->jd_inode); 248feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 249b3b94faaSDavid Teigland 250b3b94faaSDavid Teigland if (error) { 25182ffa516SSteven Whitehouse gfs2_meta_sync(ip->i_gl, DIO_START | DIO_WAIT); 252b3b94faaSDavid Teigland return; 253b3b94faaSDavid Teigland } 254b3b94faaSDavid Teigland if (pass != 1) 255b3b94faaSDavid Teigland return; 256b3b94faaSDavid Teigland 2575c676f6dSSteven Whitehouse gfs2_meta_sync(ip->i_gl, DIO_START | DIO_WAIT); 258b3b94faaSDavid Teigland 259b3b94faaSDavid Teigland fs_info(sdp, "jid=%u: Replayed %u of %u blocks\n", 260b3b94faaSDavid Teigland jd->jd_jid, sdp->sd_replayed_blocks, sdp->sd_found_blocks); 261b3b94faaSDavid Teigland } 262b3b94faaSDavid Teigland 263b3b94faaSDavid Teigland static void revoke_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 264b3b94faaSDavid Teigland { 265b3b94faaSDavid Teigland struct gfs2_trans *tr; 266b3b94faaSDavid Teigland 2675c676f6dSSteven Whitehouse tr = current->journal_info; 268b3b94faaSDavid Teigland tr->tr_touched = 1; 269b3b94faaSDavid Teigland tr->tr_num_revoke++; 270b3b94faaSDavid Teigland 271b3b94faaSDavid Teigland gfs2_log_lock(sdp); 272b3b94faaSDavid Teigland sdp->sd_log_num_revoke++; 273b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_revoke); 274b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 275b3b94faaSDavid Teigland } 276b3b94faaSDavid Teigland 277b3b94faaSDavid Teigland static void revoke_lo_before_commit(struct gfs2_sbd *sdp) 278b3b94faaSDavid Teigland { 279b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld; 280b3b94faaSDavid Teigland struct gfs2_meta_header *mh; 281b3b94faaSDavid Teigland struct buffer_head *bh; 282b3b94faaSDavid Teigland unsigned int offset; 283b3b94faaSDavid Teigland struct list_head *head = &sdp->sd_log_le_revoke; 284b3b94faaSDavid Teigland struct gfs2_revoke *rv; 285b3b94faaSDavid Teigland 286b3b94faaSDavid Teigland if (!sdp->sd_log_num_revoke) 287b3b94faaSDavid Teigland return; 288b3b94faaSDavid Teigland 289b3b94faaSDavid Teigland bh = gfs2_log_get_buf(sdp); 290b3b94faaSDavid Teigland ld = (struct gfs2_log_descriptor *)bh->b_data; 291b3b94faaSDavid Teigland ld->ld_header.mh_magic = cpu_to_be32(GFS2_MAGIC); 292e3167dedSSteven Whitehouse ld->ld_header.mh_type = cpu_to_be32(GFS2_METATYPE_LD); 293e3167dedSSteven Whitehouse ld->ld_header.mh_format = cpu_to_be32(GFS2_FORMAT_LD); 294b3b94faaSDavid Teigland ld->ld_type = cpu_to_be32(GFS2_LOG_DESC_REVOKE); 295568f4c96SSteven Whitehouse ld->ld_length = cpu_to_be32(gfs2_struct2blk(sdp, sdp->sd_log_num_revoke, 296cd915493SSteven Whitehouse sizeof(u64))); 297b3b94faaSDavid Teigland ld->ld_data1 = cpu_to_be32(sdp->sd_log_num_revoke); 298b3b94faaSDavid Teigland ld->ld_data2 = cpu_to_be32(0); 299b3b94faaSDavid Teigland memset(ld->ld_reserved, 0, sizeof(ld->ld_reserved)); 300b3b94faaSDavid Teigland offset = sizeof(struct gfs2_log_descriptor); 301b3b94faaSDavid Teigland 302b3b94faaSDavid Teigland while (!list_empty(head)) { 303b3b94faaSDavid Teigland rv = list_entry(head->next, struct gfs2_revoke, rv_le.le_list); 30413538b8eSSteven Whitehouse list_del_init(&rv->rv_le.le_list); 305b3b94faaSDavid Teigland sdp->sd_log_num_revoke--; 306b3b94faaSDavid Teigland 307cd915493SSteven Whitehouse if (offset + sizeof(u64) > sdp->sd_sb.sb_bsize) { 308b3b94faaSDavid Teigland set_buffer_dirty(bh); 309b3b94faaSDavid Teigland ll_rw_block(WRITE, 1, &bh); 310b3b94faaSDavid Teigland 311b3b94faaSDavid Teigland bh = gfs2_log_get_buf(sdp); 312b3b94faaSDavid Teigland mh = (struct gfs2_meta_header *)bh->b_data; 313b3b94faaSDavid Teigland mh->mh_magic = cpu_to_be32(GFS2_MAGIC); 314e3167dedSSteven Whitehouse mh->mh_type = cpu_to_be32(GFS2_METATYPE_LB); 315e3167dedSSteven Whitehouse mh->mh_format = cpu_to_be32(GFS2_FORMAT_LB); 316b3b94faaSDavid Teigland offset = sizeof(struct gfs2_meta_header); 317b3b94faaSDavid Teigland } 318b3b94faaSDavid Teigland 319b3b94faaSDavid Teigland *(__be64 *)(bh->b_data + offset) = cpu_to_be64(rv->rv_blkno); 320b3b94faaSDavid Teigland kfree(rv); 321b3b94faaSDavid Teigland 322cd915493SSteven Whitehouse offset += sizeof(u64); 323b3b94faaSDavid Teigland } 324b3b94faaSDavid Teigland gfs2_assert_withdraw(sdp, !sdp->sd_log_num_revoke); 325b3b94faaSDavid Teigland 326b3b94faaSDavid Teigland set_buffer_dirty(bh); 327b3b94faaSDavid Teigland ll_rw_block(WRITE, 1, &bh); 328b3b94faaSDavid Teigland } 329b3b94faaSDavid Teigland 330b3b94faaSDavid Teigland static void revoke_lo_before_scan(struct gfs2_jdesc *jd, 331b3b94faaSDavid Teigland struct gfs2_log_header *head, int pass) 332b3b94faaSDavid Teigland { 333feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 334b3b94faaSDavid Teigland 335b3b94faaSDavid Teigland if (pass != 0) 336b3b94faaSDavid Teigland return; 337b3b94faaSDavid Teigland 338b3b94faaSDavid Teigland sdp->sd_found_revokes = 0; 339b3b94faaSDavid Teigland sdp->sd_replay_tail = head->lh_tail; 340b3b94faaSDavid Teigland } 341b3b94faaSDavid Teigland 342b3b94faaSDavid Teigland static int revoke_lo_scan_elements(struct gfs2_jdesc *jd, unsigned int start, 343b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld, __be64 *ptr, 344b3b94faaSDavid Teigland int pass) 345b3b94faaSDavid Teigland { 346feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 347b3b94faaSDavid Teigland unsigned int blks = be32_to_cpu(ld->ld_length); 348b3b94faaSDavid Teigland unsigned int revokes = be32_to_cpu(ld->ld_data1); 349b3b94faaSDavid Teigland struct buffer_head *bh; 350b3b94faaSDavid Teigland unsigned int offset; 351cd915493SSteven Whitehouse u64 blkno; 352b3b94faaSDavid Teigland int first = 1; 353b3b94faaSDavid Teigland int error; 354b3b94faaSDavid Teigland 355b3b94faaSDavid Teigland if (pass != 0 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_REVOKE) 356b3b94faaSDavid Teigland return 0; 357b3b94faaSDavid Teigland 358b3b94faaSDavid Teigland offset = sizeof(struct gfs2_log_descriptor); 359b3b94faaSDavid Teigland 360b3b94faaSDavid Teigland for (; blks; gfs2_replay_incr_blk(sdp, &start), blks--) { 361b3b94faaSDavid Teigland error = gfs2_replay_read_block(jd, start, &bh); 362b3b94faaSDavid Teigland if (error) 363b3b94faaSDavid Teigland return error; 364b3b94faaSDavid Teigland 365b3b94faaSDavid Teigland if (!first) 366b3b94faaSDavid Teigland gfs2_metatype_check(sdp, bh, GFS2_METATYPE_LB); 367b3b94faaSDavid Teigland 368cd915493SSteven Whitehouse while (offset + sizeof(u64) <= sdp->sd_sb.sb_bsize) { 369b3b94faaSDavid Teigland blkno = be64_to_cpu(*(__be64 *)(bh->b_data + offset)); 370b3b94faaSDavid Teigland 371b3b94faaSDavid Teigland error = gfs2_revoke_add(sdp, blkno, start); 372b3b94faaSDavid Teigland if (error < 0) 373b3b94faaSDavid Teigland return error; 374b3b94faaSDavid Teigland else if (error) 375b3b94faaSDavid Teigland sdp->sd_found_revokes++; 376b3b94faaSDavid Teigland 377b3b94faaSDavid Teigland if (!--revokes) 378b3b94faaSDavid Teigland break; 379cd915493SSteven Whitehouse offset += sizeof(u64); 380b3b94faaSDavid Teigland } 381b3b94faaSDavid Teigland 382b3b94faaSDavid Teigland brelse(bh); 383b3b94faaSDavid Teigland offset = sizeof(struct gfs2_meta_header); 384b3b94faaSDavid Teigland first = 0; 385b3b94faaSDavid Teigland } 386b3b94faaSDavid Teigland 387b3b94faaSDavid Teigland return 0; 388b3b94faaSDavid Teigland } 389b3b94faaSDavid Teigland 390b3b94faaSDavid Teigland static void revoke_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass) 391b3b94faaSDavid Teigland { 392feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 393b3b94faaSDavid Teigland 394b3b94faaSDavid Teigland if (error) { 395b3b94faaSDavid Teigland gfs2_revoke_clean(sdp); 396b3b94faaSDavid Teigland return; 397b3b94faaSDavid Teigland } 398b3b94faaSDavid Teigland if (pass != 1) 399b3b94faaSDavid Teigland return; 400b3b94faaSDavid Teigland 401b3b94faaSDavid Teigland fs_info(sdp, "jid=%u: Found %u revoke tags\n", 402b3b94faaSDavid Teigland jd->jd_jid, sdp->sd_found_revokes); 403b3b94faaSDavid Teigland 404b3b94faaSDavid Teigland gfs2_revoke_clean(sdp); 405b3b94faaSDavid Teigland } 406b3b94faaSDavid Teigland 407b3b94faaSDavid Teigland static void rg_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 408b3b94faaSDavid Teigland { 409b3b94faaSDavid Teigland struct gfs2_rgrpd *rgd; 4105c676f6dSSteven Whitehouse struct gfs2_trans *tr = current->journal_info; 411b3b94faaSDavid Teigland 4125c676f6dSSteven Whitehouse tr->tr_touched = 1; 413b3b94faaSDavid Teigland 414b3b94faaSDavid Teigland if (!list_empty(&le->le_list)) 415b3b94faaSDavid Teigland return; 416b3b94faaSDavid Teigland 417b3b94faaSDavid Teigland rgd = container_of(le, struct gfs2_rgrpd, rd_le); 418b3b94faaSDavid Teigland gfs2_rgrp_bh_hold(rgd); 419b3b94faaSDavid Teigland 420b3b94faaSDavid Teigland gfs2_log_lock(sdp); 421b3b94faaSDavid Teigland sdp->sd_log_num_rg++; 422b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_rg); 423b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 424b3b94faaSDavid Teigland } 425b3b94faaSDavid Teigland 426b3b94faaSDavid Teigland static void rg_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) 427b3b94faaSDavid Teigland { 428b3b94faaSDavid Teigland struct list_head *head = &sdp->sd_log_le_rg; 429b3b94faaSDavid Teigland struct gfs2_rgrpd *rgd; 430b3b94faaSDavid Teigland 431b3b94faaSDavid Teigland while (!list_empty(head)) { 432b3b94faaSDavid Teigland rgd = list_entry(head->next, struct gfs2_rgrpd, rd_le.le_list); 433b3b94faaSDavid Teigland list_del_init(&rgd->rd_le.le_list); 434b3b94faaSDavid Teigland sdp->sd_log_num_rg--; 435b3b94faaSDavid Teigland 436b3b94faaSDavid Teigland gfs2_rgrp_repolish_clones(rgd); 437b3b94faaSDavid Teigland gfs2_rgrp_bh_put(rgd); 438b3b94faaSDavid Teigland } 439b3b94faaSDavid Teigland gfs2_assert_warn(sdp, !sdp->sd_log_num_rg); 440b3b94faaSDavid Teigland } 441b3b94faaSDavid Teigland 44218ec7d5cSSteven Whitehouse /** 44318ec7d5cSSteven Whitehouse * databuf_lo_add - Add a databuf to the transaction. 44418ec7d5cSSteven Whitehouse * 44518ec7d5cSSteven Whitehouse * This is used in two distinct cases: 44618ec7d5cSSteven Whitehouse * i) In ordered write mode 44718ec7d5cSSteven Whitehouse * We put the data buffer on a list so that we can ensure that its 44818ec7d5cSSteven Whitehouse * synced to disk at the right time 44918ec7d5cSSteven Whitehouse * ii) In journaled data mode 45018ec7d5cSSteven Whitehouse * We need to journal the data block in the same way as metadata in 45118ec7d5cSSteven Whitehouse * the functions above. The difference is that here we have a tag 45218ec7d5cSSteven Whitehouse * which is two __be64's being the block number (as per meta data) 45318ec7d5cSSteven Whitehouse * and a flag which says whether the data block needs escaping or 45418ec7d5cSSteven Whitehouse * not. This means we need a new log entry for each 251 or so data 45518ec7d5cSSteven Whitehouse * blocks, which isn't an enormous overhead but twice as much as 45618ec7d5cSSteven Whitehouse * for normal metadata blocks. 45718ec7d5cSSteven Whitehouse */ 458b3b94faaSDavid Teigland static void databuf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 459b3b94faaSDavid Teigland { 46018ec7d5cSSteven Whitehouse struct gfs2_bufdata *bd = container_of(le, struct gfs2_bufdata, bd_le); 4615c676f6dSSteven Whitehouse struct gfs2_trans *tr = current->journal_info; 46218ec7d5cSSteven Whitehouse struct address_space *mapping = bd->bd_bh->b_page->mapping; 463feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(mapping->host); 464b3b94faaSDavid Teigland 46518ec7d5cSSteven Whitehouse tr->tr_touched = 1; 46615d00c0bSSteven Whitehouse if (list_empty(&bd->bd_list_tr) && 46718ec7d5cSSteven Whitehouse (ip->i_di.di_flags & GFS2_DIF_JDATA)) { 46818ec7d5cSSteven Whitehouse tr->tr_num_buf++; 46918ec7d5cSSteven Whitehouse list_add(&bd->bd_list_tr, &tr->tr_list_buf); 47018ec7d5cSSteven Whitehouse gfs2_pin(sdp, bd->bd_bh); 471b4dc7291SSteven Whitehouse tr->tr_num_buf_new++; 47218ec7d5cSSteven Whitehouse } 473b61dde79SSteven Whitehouse gfs2_trans_add_gl(bd->bd_gl); 474b3b94faaSDavid Teigland gfs2_log_lock(sdp); 47515d00c0bSSteven Whitehouse if (list_empty(&le->le_list)) { 47618ec7d5cSSteven Whitehouse if (ip->i_di.di_flags & GFS2_DIF_JDATA) 47718ec7d5cSSteven Whitehouse sdp->sd_log_num_jdata++; 478b3b94faaSDavid Teigland sdp->sd_log_num_databuf++; 479b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_databuf); 48013538b8eSSteven Whitehouse } 481b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 482b3b94faaSDavid Teigland } 483b3b94faaSDavid Teigland 48418ec7d5cSSteven Whitehouse static int gfs2_check_magic(struct buffer_head *bh) 48518ec7d5cSSteven Whitehouse { 48618ec7d5cSSteven Whitehouse struct page *page = bh->b_page; 48718ec7d5cSSteven Whitehouse void *kaddr; 48818ec7d5cSSteven Whitehouse __be32 *ptr; 48918ec7d5cSSteven Whitehouse int rv = 0; 49018ec7d5cSSteven Whitehouse 49118ec7d5cSSteven Whitehouse kaddr = kmap_atomic(page, KM_USER0); 49218ec7d5cSSteven Whitehouse ptr = kaddr + bh_offset(bh); 49318ec7d5cSSteven Whitehouse if (*ptr == cpu_to_be32(GFS2_MAGIC)) 49418ec7d5cSSteven Whitehouse rv = 1; 49518ec7d5cSSteven Whitehouse kunmap_atomic(page, KM_USER0); 49618ec7d5cSSteven Whitehouse 49718ec7d5cSSteven Whitehouse return rv; 49818ec7d5cSSteven Whitehouse } 49918ec7d5cSSteven Whitehouse 50018ec7d5cSSteven Whitehouse /** 50118ec7d5cSSteven Whitehouse * databuf_lo_before_commit - Scan the data buffers, writing as we go 50218ec7d5cSSteven Whitehouse * 50318ec7d5cSSteven Whitehouse * Here we scan through the lists of buffers and make the assumption 50418ec7d5cSSteven Whitehouse * that any buffer thats been pinned is being journaled, and that 50518ec7d5cSSteven Whitehouse * any unpinned buffer is an ordered write data buffer and therefore 50618ec7d5cSSteven Whitehouse * will be written back rather than journaled. 50718ec7d5cSSteven Whitehouse */ 508b3b94faaSDavid Teigland static void databuf_lo_before_commit(struct gfs2_sbd *sdp) 509b3b94faaSDavid Teigland { 510b3b94faaSDavid Teigland LIST_HEAD(started); 51118ec7d5cSSteven Whitehouse struct gfs2_bufdata *bd1 = NULL, *bd2, *bdt; 51218ec7d5cSSteven Whitehouse struct buffer_head *bh = NULL; 51318ec7d5cSSteven Whitehouse unsigned int offset = sizeof(struct gfs2_log_descriptor); 51418ec7d5cSSteven Whitehouse struct gfs2_log_descriptor *ld; 51518ec7d5cSSteven Whitehouse unsigned int limit; 51618ec7d5cSSteven Whitehouse unsigned int total_dbuf = sdp->sd_log_num_databuf; 51718ec7d5cSSteven Whitehouse unsigned int total_jdata = sdp->sd_log_num_jdata; 51818ec7d5cSSteven Whitehouse unsigned int num, n; 519f55ab26aSSteven Whitehouse __be64 *ptr = NULL; 520b3b94faaSDavid Teigland 521a67cdbd4SSteven Whitehouse offset += 2*sizeof(__be64) - 1; 52218ec7d5cSSteven Whitehouse offset &= ~(2*sizeof(__be64) - 1); 52318ec7d5cSSteven Whitehouse limit = (sdp->sd_sb.sb_bsize - offset)/sizeof(__be64); 524b3b94faaSDavid Teigland 52518ec7d5cSSteven Whitehouse /* 52618ec7d5cSSteven Whitehouse * Start writing ordered buffers, write journaled buffers 52718ec7d5cSSteven Whitehouse * into the log along with a header 52818ec7d5cSSteven Whitehouse */ 529f55ab26aSSteven Whitehouse gfs2_log_lock(sdp); 530568f4c96SSteven Whitehouse bd2 = bd1 = list_prepare_entry(bd1, &sdp->sd_log_le_databuf, 531568f4c96SSteven Whitehouse bd_le.le_list); 53218ec7d5cSSteven Whitehouse while(total_dbuf) { 53318ec7d5cSSteven Whitehouse num = total_jdata; 53418ec7d5cSSteven Whitehouse if (num > limit) 53518ec7d5cSSteven Whitehouse num = limit; 53618ec7d5cSSteven Whitehouse n = 0; 537568f4c96SSteven Whitehouse list_for_each_entry_safe_continue(bd1, bdt, 538568f4c96SSteven Whitehouse &sdp->sd_log_le_databuf, 539568f4c96SSteven Whitehouse bd_le.le_list) { 54018ec7d5cSSteven Whitehouse /* An ordered write buffer */ 54118ec7d5cSSteven Whitehouse if (bd1->bd_bh && !buffer_pinned(bd1->bd_bh)) { 54218ec7d5cSSteven Whitehouse list_move(&bd1->bd_le.le_list, &started); 54318ec7d5cSSteven Whitehouse if (bd1 == bd2) { 54418ec7d5cSSteven Whitehouse bd2 = NULL; 545568f4c96SSteven Whitehouse bd2 = list_prepare_entry(bd2, 546568f4c96SSteven Whitehouse &sdp->sd_log_le_databuf, 547568f4c96SSteven Whitehouse bd_le.le_list); 54818ec7d5cSSteven Whitehouse } 54918ec7d5cSSteven Whitehouse total_dbuf--; 55018ec7d5cSSteven Whitehouse if (bd1->bd_bh) { 55118ec7d5cSSteven Whitehouse get_bh(bd1->bd_bh); 55218ec7d5cSSteven Whitehouse if (buffer_dirty(bd1->bd_bh)) { 553f55ab26aSSteven Whitehouse gfs2_log_unlock(sdp); 55418ec7d5cSSteven Whitehouse wait_on_buffer(bd1->bd_bh); 555568f4c96SSteven Whitehouse ll_rw_block(WRITE, 1, 556568f4c96SSteven Whitehouse &bd1->bd_bh); 557f55ab26aSSteven Whitehouse gfs2_log_lock(sdp); 55818ec7d5cSSteven Whitehouse } 55918ec7d5cSSteven Whitehouse brelse(bd1->bd_bh); 56018ec7d5cSSteven Whitehouse continue; 56118ec7d5cSSteven Whitehouse } 56218ec7d5cSSteven Whitehouse continue; 56318ec7d5cSSteven Whitehouse } else if (bd1->bd_bh) { /* A journaled buffer */ 56418ec7d5cSSteven Whitehouse int magic; 56518ec7d5cSSteven Whitehouse gfs2_log_unlock(sdp); 56618ec7d5cSSteven Whitehouse if (!bh) { 56718ec7d5cSSteven Whitehouse bh = gfs2_log_get_buf(sdp); 568b09e593dSSteven Whitehouse sdp->sd_log_num_hdrs++; 569568f4c96SSteven Whitehouse ld = (struct gfs2_log_descriptor *) 570568f4c96SSteven Whitehouse bh->b_data; 57118ec7d5cSSteven Whitehouse ptr = (__be64 *)(bh->b_data + offset); 572568f4c96SSteven Whitehouse ld->ld_header.mh_magic = 573568f4c96SSteven Whitehouse cpu_to_be32(GFS2_MAGIC); 574568f4c96SSteven Whitehouse ld->ld_header.mh_type = 575e3167dedSSteven Whitehouse cpu_to_be32(GFS2_METATYPE_LD); 576568f4c96SSteven Whitehouse ld->ld_header.mh_format = 577e3167dedSSteven Whitehouse cpu_to_be32(GFS2_FORMAT_LD); 578568f4c96SSteven Whitehouse ld->ld_type = 579568f4c96SSteven Whitehouse cpu_to_be32(GFS2_LOG_DESC_JDATA); 58018ec7d5cSSteven Whitehouse ld->ld_length = cpu_to_be32(num + 1); 58118ec7d5cSSteven Whitehouse ld->ld_data1 = cpu_to_be32(num); 58218ec7d5cSSteven Whitehouse ld->ld_data2 = cpu_to_be32(0); 58318ec7d5cSSteven Whitehouse memset(ld->ld_reserved, 0, sizeof(ld->ld_reserved)); 58418ec7d5cSSteven Whitehouse } 58518ec7d5cSSteven Whitehouse magic = gfs2_check_magic(bd1->bd_bh); 58618ec7d5cSSteven Whitehouse *ptr++ = cpu_to_be64(bd1->bd_bh->b_blocknr); 58718ec7d5cSSteven Whitehouse *ptr++ = cpu_to_be64((__u64)magic); 58818ec7d5cSSteven Whitehouse clear_buffer_escaped(bd1->bd_bh); 58918ec7d5cSSteven Whitehouse if (unlikely(magic != 0)) 59018ec7d5cSSteven Whitehouse set_buffer_escaped(bd1->bd_bh); 591f55ab26aSSteven Whitehouse gfs2_log_lock(sdp); 59218ec7d5cSSteven Whitehouse if (n++ > num) 59318ec7d5cSSteven Whitehouse break; 594623d9355SSteven Whitehouse } else if (!bd1->bd_bh) { 595623d9355SSteven Whitehouse total_dbuf--; 596623d9355SSteven Whitehouse sdp->sd_log_num_databuf--; 597623d9355SSteven Whitehouse list_del_init(&bd1->bd_le.le_list); 598623d9355SSteven Whitehouse if (bd1 == bd2) { 599623d9355SSteven Whitehouse bd2 = NULL; 600623d9355SSteven Whitehouse bd2 = list_prepare_entry(bd2, 601623d9355SSteven Whitehouse &sdp->sd_log_le_databuf, 602623d9355SSteven Whitehouse bd_le.le_list); 603623d9355SSteven Whitehouse } 604623d9355SSteven Whitehouse kmem_cache_free(gfs2_bufdata_cachep, bd1); 60518ec7d5cSSteven Whitehouse } 60618ec7d5cSSteven Whitehouse } 607f55ab26aSSteven Whitehouse gfs2_log_unlock(sdp); 608b3b94faaSDavid Teigland if (bh) { 60918ec7d5cSSteven Whitehouse set_buffer_dirty(bh); 610b3b94faaSDavid Teigland ll_rw_block(WRITE, 1, &bh); 61118ec7d5cSSteven Whitehouse bh = NULL; 612b3b94faaSDavid Teigland } 61318ec7d5cSSteven Whitehouse n = 0; 614f55ab26aSSteven Whitehouse gfs2_log_lock(sdp); 615568f4c96SSteven Whitehouse list_for_each_entry_continue(bd2, &sdp->sd_log_le_databuf, 616568f4c96SSteven Whitehouse bd_le.le_list) { 61718ec7d5cSSteven Whitehouse if (!bd2->bd_bh) 61818ec7d5cSSteven Whitehouse continue; 61918ec7d5cSSteven Whitehouse /* copy buffer if it needs escaping */ 620f55ab26aSSteven Whitehouse gfs2_log_unlock(sdp); 62118ec7d5cSSteven Whitehouse if (unlikely(buffer_escaped(bd2->bd_bh))) { 62218ec7d5cSSteven Whitehouse void *kaddr; 62318ec7d5cSSteven Whitehouse struct page *page = bd2->bd_bh->b_page; 62418ec7d5cSSteven Whitehouse bh = gfs2_log_get_buf(sdp); 62518ec7d5cSSteven Whitehouse kaddr = kmap_atomic(page, KM_USER0); 626568f4c96SSteven Whitehouse memcpy(bh->b_data, 627568f4c96SSteven Whitehouse kaddr + bh_offset(bd2->bd_bh), 628568f4c96SSteven Whitehouse sdp->sd_sb.sb_bsize); 62918ec7d5cSSteven Whitehouse kunmap_atomic(page, KM_USER0); 63018ec7d5cSSteven Whitehouse *(__be32 *)bh->b_data = 0; 63118ec7d5cSSteven Whitehouse } else { 63218ec7d5cSSteven Whitehouse bh = gfs2_log_fake_buf(sdp, bd2->bd_bh); 633b3b94faaSDavid Teigland } 63418ec7d5cSSteven Whitehouse set_buffer_dirty(bh); 63518ec7d5cSSteven Whitehouse ll_rw_block(WRITE, 1, &bh); 636f55ab26aSSteven Whitehouse gfs2_log_lock(sdp); 63718ec7d5cSSteven Whitehouse if (++n >= num) 63818ec7d5cSSteven Whitehouse break; 63918ec7d5cSSteven Whitehouse } 64018ec7d5cSSteven Whitehouse bh = NULL; 64118ec7d5cSSteven Whitehouse total_dbuf -= num; 64218ec7d5cSSteven Whitehouse total_jdata -= num; 64318ec7d5cSSteven Whitehouse } 644f55ab26aSSteven Whitehouse gfs2_log_unlock(sdp); 645f55ab26aSSteven Whitehouse 64618ec7d5cSSteven Whitehouse /* Wait on all ordered buffers */ 647b3b94faaSDavid Teigland while (!list_empty(&started)) { 64813538b8eSSteven Whitehouse gfs2_log_lock(sdp); 649568f4c96SSteven Whitehouse bd1 = list_entry(started.next, struct gfs2_bufdata, 650568f4c96SSteven Whitehouse bd_le.le_list); 65108867605SSteven Whitehouse list_del_init(&bd1->bd_le.le_list); 652b3b94faaSDavid Teigland sdp->sd_log_num_databuf--; 65318ec7d5cSSteven Whitehouse bh = bd1->bd_bh; 654b3b94faaSDavid Teigland if (bh) { 6555c676f6dSSteven Whitehouse bh->b_private = NULL; 65615d00c0bSSteven Whitehouse get_bh(bh); 657b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 658b3b94faaSDavid Teigland wait_on_buffer(bh); 659b3b94faaSDavid Teigland brelse(bh); 660b3b94faaSDavid Teigland } else 661b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 662b3b94faaSDavid Teigland 6633a8476ddSSteven Whitehouse kmem_cache_free(gfs2_bufdata_cachep, bd1); 664b3b94faaSDavid Teigland } 665b3b94faaSDavid Teigland 66618ec7d5cSSteven Whitehouse /* We've removed all the ordered write bufs here, so only jdata left */ 66718ec7d5cSSteven Whitehouse gfs2_assert_warn(sdp, sdp->sd_log_num_databuf == sdp->sd_log_num_jdata); 668b3b94faaSDavid Teigland } 669b3b94faaSDavid Teigland 67018ec7d5cSSteven Whitehouse static int databuf_lo_scan_elements(struct gfs2_jdesc *jd, unsigned int start, 67118ec7d5cSSteven Whitehouse struct gfs2_log_descriptor *ld, 67218ec7d5cSSteven Whitehouse __be64 *ptr, int pass) 67318ec7d5cSSteven Whitehouse { 674feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(jd->jd_inode); 675feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 6765c676f6dSSteven Whitehouse struct gfs2_glock *gl = ip->i_gl; 67718ec7d5cSSteven Whitehouse unsigned int blks = be32_to_cpu(ld->ld_data1); 67818ec7d5cSSteven Whitehouse struct buffer_head *bh_log, *bh_ip; 679cd915493SSteven Whitehouse u64 blkno; 680cd915493SSteven Whitehouse u64 esc; 68118ec7d5cSSteven Whitehouse int error = 0; 68218ec7d5cSSteven Whitehouse 68318ec7d5cSSteven Whitehouse if (pass != 1 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_JDATA) 68418ec7d5cSSteven Whitehouse return 0; 68518ec7d5cSSteven Whitehouse 68618ec7d5cSSteven Whitehouse gfs2_replay_incr_blk(sdp, &start); 68718ec7d5cSSteven Whitehouse for (; blks; gfs2_replay_incr_blk(sdp, &start), blks--) { 68818ec7d5cSSteven Whitehouse blkno = be64_to_cpu(*ptr++); 68918ec7d5cSSteven Whitehouse esc = be64_to_cpu(*ptr++); 69018ec7d5cSSteven Whitehouse 69118ec7d5cSSteven Whitehouse sdp->sd_found_blocks++; 69218ec7d5cSSteven Whitehouse 69318ec7d5cSSteven Whitehouse if (gfs2_revoke_check(sdp, blkno, start)) 69418ec7d5cSSteven Whitehouse continue; 69518ec7d5cSSteven Whitehouse 69618ec7d5cSSteven Whitehouse error = gfs2_replay_read_block(jd, start, &bh_log); 69718ec7d5cSSteven Whitehouse if (error) 69818ec7d5cSSteven Whitehouse return error; 69918ec7d5cSSteven Whitehouse 70018ec7d5cSSteven Whitehouse bh_ip = gfs2_meta_new(gl, blkno); 70118ec7d5cSSteven Whitehouse memcpy(bh_ip->b_data, bh_log->b_data, bh_log->b_size); 70218ec7d5cSSteven Whitehouse 70318ec7d5cSSteven Whitehouse /* Unescape */ 70418ec7d5cSSteven Whitehouse if (esc) { 70518ec7d5cSSteven Whitehouse __be32 *eptr = (__be32 *)bh_ip->b_data; 70618ec7d5cSSteven Whitehouse *eptr = cpu_to_be32(GFS2_MAGIC); 70718ec7d5cSSteven Whitehouse } 70818ec7d5cSSteven Whitehouse mark_buffer_dirty(bh_ip); 70918ec7d5cSSteven Whitehouse 71018ec7d5cSSteven Whitehouse brelse(bh_log); 71118ec7d5cSSteven Whitehouse brelse(bh_ip); 71218ec7d5cSSteven Whitehouse if (error) 71318ec7d5cSSteven Whitehouse break; 71418ec7d5cSSteven Whitehouse 71518ec7d5cSSteven Whitehouse sdp->sd_replayed_blocks++; 71618ec7d5cSSteven Whitehouse } 71718ec7d5cSSteven Whitehouse 71818ec7d5cSSteven Whitehouse return error; 71918ec7d5cSSteven Whitehouse } 72018ec7d5cSSteven Whitehouse 72118ec7d5cSSteven Whitehouse /* FIXME: sort out accounting for log blocks etc. */ 72218ec7d5cSSteven Whitehouse 72318ec7d5cSSteven Whitehouse static void databuf_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass) 72418ec7d5cSSteven Whitehouse { 725feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(jd->jd_inode); 726feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 72718ec7d5cSSteven Whitehouse 72818ec7d5cSSteven Whitehouse if (error) { 7295c676f6dSSteven Whitehouse gfs2_meta_sync(ip->i_gl, 730568f4c96SSteven Whitehouse DIO_START | DIO_WAIT); 73118ec7d5cSSteven Whitehouse return; 73218ec7d5cSSteven Whitehouse } 73318ec7d5cSSteven Whitehouse if (pass != 1) 73418ec7d5cSSteven Whitehouse return; 73518ec7d5cSSteven Whitehouse 73618ec7d5cSSteven Whitehouse /* data sync? */ 7375c676f6dSSteven Whitehouse gfs2_meta_sync(ip->i_gl, DIO_START | DIO_WAIT); 73818ec7d5cSSteven Whitehouse 73918ec7d5cSSteven Whitehouse fs_info(sdp, "jid=%u: Replayed %u of %u data blocks\n", 74018ec7d5cSSteven Whitehouse jd->jd_jid, sdp->sd_replayed_blocks, sdp->sd_found_blocks); 74118ec7d5cSSteven Whitehouse } 74218ec7d5cSSteven Whitehouse 74318ec7d5cSSteven Whitehouse static void databuf_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) 74418ec7d5cSSteven Whitehouse { 74518ec7d5cSSteven Whitehouse struct list_head *head = &sdp->sd_log_le_databuf; 74618ec7d5cSSteven Whitehouse struct gfs2_bufdata *bd; 74718ec7d5cSSteven Whitehouse 74818ec7d5cSSteven Whitehouse while (!list_empty(head)) { 74918ec7d5cSSteven Whitehouse bd = list_entry(head->next, struct gfs2_bufdata, bd_le.le_list); 750b8e1aabfSSteven Whitehouse list_del_init(&bd->bd_le.le_list); 75118ec7d5cSSteven Whitehouse sdp->sd_log_num_databuf--; 75218ec7d5cSSteven Whitehouse sdp->sd_log_num_jdata--; 75318ec7d5cSSteven Whitehouse gfs2_unpin(sdp, bd->bd_bh, ai); 75418ec7d5cSSteven Whitehouse } 75518ec7d5cSSteven Whitehouse gfs2_assert_warn(sdp, !sdp->sd_log_num_databuf); 75618ec7d5cSSteven Whitehouse gfs2_assert_warn(sdp, !sdp->sd_log_num_jdata); 75718ec7d5cSSteven Whitehouse } 75818ec7d5cSSteven Whitehouse 75918ec7d5cSSteven Whitehouse 760b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_glock_lops = { 761b3b94faaSDavid Teigland .lo_add = glock_lo_add, 762b3b94faaSDavid Teigland .lo_after_commit = glock_lo_after_commit, 763ea67eedbSSteven Whitehouse .lo_name = "glock", 764b3b94faaSDavid Teigland }; 765b3b94faaSDavid Teigland 766b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_buf_lops = { 767b3b94faaSDavid Teigland .lo_add = buf_lo_add, 768b3b94faaSDavid Teigland .lo_incore_commit = buf_lo_incore_commit, 769b3b94faaSDavid Teigland .lo_before_commit = buf_lo_before_commit, 770b3b94faaSDavid Teigland .lo_after_commit = buf_lo_after_commit, 771b3b94faaSDavid Teigland .lo_before_scan = buf_lo_before_scan, 772b3b94faaSDavid Teigland .lo_scan_elements = buf_lo_scan_elements, 773b3b94faaSDavid Teigland .lo_after_scan = buf_lo_after_scan, 774ea67eedbSSteven Whitehouse .lo_name = "buf", 775b3b94faaSDavid Teigland }; 776b3b94faaSDavid Teigland 777b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_revoke_lops = { 778b3b94faaSDavid Teigland .lo_add = revoke_lo_add, 779b3b94faaSDavid Teigland .lo_before_commit = revoke_lo_before_commit, 780b3b94faaSDavid Teigland .lo_before_scan = revoke_lo_before_scan, 781b3b94faaSDavid Teigland .lo_scan_elements = revoke_lo_scan_elements, 782b3b94faaSDavid Teigland .lo_after_scan = revoke_lo_after_scan, 783ea67eedbSSteven Whitehouse .lo_name = "revoke", 784b3b94faaSDavid Teigland }; 785b3b94faaSDavid Teigland 786b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_rg_lops = { 787b3b94faaSDavid Teigland .lo_add = rg_lo_add, 788b3b94faaSDavid Teigland .lo_after_commit = rg_lo_after_commit, 789ea67eedbSSteven Whitehouse .lo_name = "rg", 790b3b94faaSDavid Teigland }; 791b3b94faaSDavid Teigland 792b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_databuf_lops = { 793b3b94faaSDavid Teigland .lo_add = databuf_lo_add, 79418ec7d5cSSteven Whitehouse .lo_incore_commit = buf_lo_incore_commit, 795b3b94faaSDavid Teigland .lo_before_commit = databuf_lo_before_commit, 79618ec7d5cSSteven Whitehouse .lo_after_commit = databuf_lo_after_commit, 79718ec7d5cSSteven Whitehouse .lo_scan_elements = databuf_lo_scan_elements, 79818ec7d5cSSteven Whitehouse .lo_after_scan = databuf_lo_after_scan, 799ea67eedbSSteven Whitehouse .lo_name = "databuf", 800b3b94faaSDavid Teigland }; 801b3b94faaSDavid Teigland 802b09e593dSSteven Whitehouse const struct gfs2_log_operations *gfs2_log_ops[] = { 803b3b94faaSDavid Teigland &gfs2_glock_lops, 804b3b94faaSDavid Teigland &gfs2_buf_lops, 805b3b94faaSDavid Teigland &gfs2_revoke_lops, 806b3b94faaSDavid Teigland &gfs2_rg_lops, 807b3b94faaSDavid Teigland &gfs2_databuf_lops, 808ea67eedbSSteven Whitehouse NULL, 809b3b94faaSDavid Teigland }; 810b3b94faaSDavid Teigland 811