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" 202332c443SRobert Peterson #include "inode.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 gl = container_of(le, struct gfs2_glock, gl_le); 38b3b94faaSDavid Teigland if (gfs2_assert_withdraw(sdp, gfs2_glock_is_held_excl(gl))) 39b3b94faaSDavid Teigland return; 40b3b94faaSDavid Teigland 41b3b94faaSDavid Teigland gfs2_log_lock(sdp); 4268835625SBenjamin Marzinski if (!list_empty(&le->le_list)){ 4368835625SBenjamin Marzinski gfs2_log_unlock(sdp); 4468835625SBenjamin Marzinski return; 4568835625SBenjamin Marzinski } 4668835625SBenjamin Marzinski gfs2_glock_hold(gl); 4768835625SBenjamin Marzinski set_bit(GLF_DIRTY, &gl->gl_flags); 48b3b94faaSDavid Teigland sdp->sd_log_num_gl++; 49b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_gl); 50b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 51b3b94faaSDavid Teigland } 52b3b94faaSDavid Teigland 53b3b94faaSDavid Teigland static void glock_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) 54b3b94faaSDavid Teigland { 55b3b94faaSDavid Teigland struct list_head *head = &sdp->sd_log_le_gl; 56b3b94faaSDavid Teigland struct gfs2_glock *gl; 57b3b94faaSDavid Teigland 58b3b94faaSDavid Teigland while (!list_empty(head)) { 59b3b94faaSDavid Teigland gl = list_entry(head->next, struct gfs2_glock, gl_le.le_list); 60b3b94faaSDavid Teigland list_del_init(&gl->gl_le.le_list); 61b3b94faaSDavid Teigland sdp->sd_log_num_gl--; 62b3b94faaSDavid Teigland 63b3b94faaSDavid Teigland gfs2_assert_withdraw(sdp, gfs2_glock_is_held_excl(gl)); 64b3b94faaSDavid Teigland gfs2_glock_put(gl); 65b3b94faaSDavid Teigland } 66b3b94faaSDavid Teigland gfs2_assert_warn(sdp, !sdp->sd_log_num_gl); 67b3b94faaSDavid Teigland } 68b3b94faaSDavid Teigland 69b3b94faaSDavid Teigland static void buf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 70b3b94faaSDavid Teigland { 71b3b94faaSDavid Teigland struct gfs2_bufdata *bd = container_of(le, struct gfs2_bufdata, bd_le); 72b3b94faaSDavid Teigland struct gfs2_trans *tr; 73b3b94faaSDavid Teigland 748bd95727SSteven Whitehouse gfs2_log_lock(sdp); 758bd95727SSteven Whitehouse if (!list_empty(&bd->bd_list_tr)) { 768bd95727SSteven Whitehouse gfs2_log_unlock(sdp); 77b3b94faaSDavid Teigland return; 788bd95727SSteven Whitehouse } 795c676f6dSSteven Whitehouse tr = current->journal_info; 80b3b94faaSDavid Teigland tr->tr_touched = 1; 81b3b94faaSDavid Teigland tr->tr_num_buf++; 82b3b94faaSDavid Teigland list_add(&bd->bd_list_tr, &tr->tr_list_buf); 838bd95727SSteven Whitehouse gfs2_log_unlock(sdp); 84b3b94faaSDavid Teigland 85b3b94faaSDavid Teigland if (!list_empty(&le->le_list)) 86b3b94faaSDavid Teigland return; 87b3b94faaSDavid Teigland 88b3b94faaSDavid Teigland gfs2_trans_add_gl(bd->bd_gl); 89b3b94faaSDavid Teigland 90b3b94faaSDavid Teigland gfs2_meta_check(sdp, bd->bd_bh); 91a98ab220SSteven Whitehouse gfs2_pin(sdp, bd->bd_bh); 92b3b94faaSDavid Teigland gfs2_log_lock(sdp); 93b3b94faaSDavid Teigland sdp->sd_log_num_buf++; 94b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_buf); 95b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 96b3b94faaSDavid Teigland 97b3b94faaSDavid Teigland tr->tr_num_buf_new++; 98b3b94faaSDavid Teigland } 99b3b94faaSDavid Teigland 100b3b94faaSDavid Teigland static void buf_lo_incore_commit(struct gfs2_sbd *sdp, struct gfs2_trans *tr) 101b3b94faaSDavid Teigland { 102b3b94faaSDavid Teigland struct list_head *head = &tr->tr_list_buf; 103b3b94faaSDavid Teigland struct gfs2_bufdata *bd; 104b3b94faaSDavid Teigland 1058bd95727SSteven Whitehouse gfs2_log_lock(sdp); 106b3b94faaSDavid Teigland while (!list_empty(head)) { 107b3b94faaSDavid Teigland bd = list_entry(head->next, struct gfs2_bufdata, bd_list_tr); 108b3b94faaSDavid Teigland list_del_init(&bd->bd_list_tr); 109b3b94faaSDavid Teigland tr->tr_num_buf--; 110b3b94faaSDavid Teigland } 1118bd95727SSteven Whitehouse gfs2_log_unlock(sdp); 112b3b94faaSDavid Teigland gfs2_assert_warn(sdp, !tr->tr_num_buf); 113b3b94faaSDavid Teigland } 114b3b94faaSDavid Teigland 115b3b94faaSDavid Teigland static void buf_lo_before_commit(struct gfs2_sbd *sdp) 116b3b94faaSDavid Teigland { 117b3b94faaSDavid Teigland struct buffer_head *bh; 118b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld; 119b3b94faaSDavid Teigland struct gfs2_bufdata *bd1 = NULL, *bd2; 120b3b94faaSDavid Teigland unsigned int total = sdp->sd_log_num_buf; 1212332c443SRobert Peterson unsigned int offset = BUF_OFFSET; 122b3b94faaSDavid Teigland unsigned int limit; 123b3b94faaSDavid Teigland unsigned int num; 124b3b94faaSDavid Teigland unsigned n; 125b3b94faaSDavid Teigland __be64 *ptr; 126b3b94faaSDavid Teigland 1272332c443SRobert Peterson limit = buf_limit(sdp); 128b3b94faaSDavid Teigland /* for 4k blocks, limit = 503 */ 129b3b94faaSDavid Teigland 130b3b94faaSDavid Teigland bd1 = bd2 = list_prepare_entry(bd1, &sdp->sd_log_le_buf, bd_le.le_list); 131b3b94faaSDavid Teigland while(total) { 132b3b94faaSDavid Teigland num = total; 133b3b94faaSDavid Teigland if (total > limit) 134b3b94faaSDavid Teigland num = limit; 135b3b94faaSDavid Teigland bh = gfs2_log_get_buf(sdp); 136b3b94faaSDavid Teigland ld = (struct gfs2_log_descriptor *)bh->b_data; 137b3b94faaSDavid Teigland ptr = (__be64 *)(bh->b_data + offset); 138b3b94faaSDavid Teigland ld->ld_header.mh_magic = cpu_to_be32(GFS2_MAGIC); 139e3167dedSSteven Whitehouse ld->ld_header.mh_type = cpu_to_be32(GFS2_METATYPE_LD); 140e3167dedSSteven Whitehouse ld->ld_header.mh_format = cpu_to_be32(GFS2_FORMAT_LD); 141b3b94faaSDavid Teigland ld->ld_type = cpu_to_be32(GFS2_LOG_DESC_METADATA); 142b3b94faaSDavid Teigland ld->ld_length = cpu_to_be32(num + 1); 143b3b94faaSDavid Teigland ld->ld_data1 = cpu_to_be32(num); 144b3b94faaSDavid Teigland ld->ld_data2 = cpu_to_be32(0); 145b3b94faaSDavid Teigland memset(ld->ld_reserved, 0, sizeof(ld->ld_reserved)); 146b3b94faaSDavid Teigland 147b3b94faaSDavid Teigland n = 0; 148568f4c96SSteven Whitehouse list_for_each_entry_continue(bd1, &sdp->sd_log_le_buf, 149568f4c96SSteven Whitehouse bd_le.le_list) { 150b3b94faaSDavid Teigland *ptr++ = cpu_to_be64(bd1->bd_bh->b_blocknr); 151b3b94faaSDavid Teigland if (++n >= num) 152b3b94faaSDavid Teigland break; 153b3b94faaSDavid Teigland } 154b3b94faaSDavid Teigland 155b3b94faaSDavid Teigland set_buffer_dirty(bh); 156b3b94faaSDavid Teigland ll_rw_block(WRITE, 1, &bh); 157b3b94faaSDavid Teigland 158b3b94faaSDavid Teigland n = 0; 159568f4c96SSteven Whitehouse list_for_each_entry_continue(bd2, &sdp->sd_log_le_buf, 160568f4c96SSteven Whitehouse bd_le.le_list) { 161b3b94faaSDavid Teigland bh = gfs2_log_fake_buf(sdp, bd2->bd_bh); 162b3b94faaSDavid Teigland set_buffer_dirty(bh); 163b3b94faaSDavid Teigland ll_rw_block(WRITE, 1, &bh); 164b3b94faaSDavid Teigland if (++n >= num) 165b3b94faaSDavid Teigland break; 166b3b94faaSDavid Teigland } 167b3b94faaSDavid Teigland 168b3b94faaSDavid Teigland total -= num; 169b3b94faaSDavid Teigland } 170b3b94faaSDavid Teigland } 171b3b94faaSDavid Teigland 172b3b94faaSDavid Teigland static void buf_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) 173b3b94faaSDavid Teigland { 174b3b94faaSDavid Teigland struct list_head *head = &sdp->sd_log_le_buf; 175b3b94faaSDavid Teigland struct gfs2_bufdata *bd; 176b3b94faaSDavid Teigland 177b3b94faaSDavid Teigland while (!list_empty(head)) { 178b3b94faaSDavid Teigland bd = list_entry(head->next, struct gfs2_bufdata, bd_le.le_list); 179b3b94faaSDavid Teigland list_del_init(&bd->bd_le.le_list); 180b3b94faaSDavid Teigland sdp->sd_log_num_buf--; 181b3b94faaSDavid Teigland 182a98ab220SSteven Whitehouse gfs2_unpin(sdp, bd->bd_bh, ai); 183b3b94faaSDavid Teigland } 184b3b94faaSDavid Teigland gfs2_assert_warn(sdp, !sdp->sd_log_num_buf); 185b3b94faaSDavid Teigland } 186b3b94faaSDavid Teigland 187b3b94faaSDavid Teigland static void buf_lo_before_scan(struct gfs2_jdesc *jd, 18855167622SAl Viro struct gfs2_log_header_host *head, int pass) 189b3b94faaSDavid Teigland { 190feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 191b3b94faaSDavid Teigland 192b3b94faaSDavid Teigland if (pass != 0) 193b3b94faaSDavid Teigland return; 194b3b94faaSDavid Teigland 195b3b94faaSDavid Teigland sdp->sd_found_blocks = 0; 196b3b94faaSDavid Teigland sdp->sd_replayed_blocks = 0; 197b3b94faaSDavid Teigland } 198b3b94faaSDavid Teigland 199b3b94faaSDavid Teigland static int buf_lo_scan_elements(struct gfs2_jdesc *jd, unsigned int start, 200b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld, __be64 *ptr, 201b3b94faaSDavid Teigland int pass) 202b3b94faaSDavid Teigland { 203feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(jd->jd_inode); 204feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 2055c676f6dSSteven Whitehouse struct gfs2_glock *gl = ip->i_gl; 206b3b94faaSDavid Teigland unsigned int blks = be32_to_cpu(ld->ld_data1); 207b3b94faaSDavid Teigland struct buffer_head *bh_log, *bh_ip; 208cd915493SSteven Whitehouse u64 blkno; 209b3b94faaSDavid Teigland int error = 0; 210b3b94faaSDavid Teigland 211b3b94faaSDavid Teigland if (pass != 1 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_METADATA) 212b3b94faaSDavid Teigland return 0; 213b3b94faaSDavid Teigland 214b3b94faaSDavid Teigland gfs2_replay_incr_blk(sdp, &start); 215b3b94faaSDavid Teigland 216b3b94faaSDavid Teigland for (; blks; gfs2_replay_incr_blk(sdp, &start), blks--) { 217b3b94faaSDavid Teigland blkno = be64_to_cpu(*ptr++); 218b3b94faaSDavid Teigland 219b3b94faaSDavid Teigland sdp->sd_found_blocks++; 220b3b94faaSDavid Teigland 221b3b94faaSDavid Teigland if (gfs2_revoke_check(sdp, blkno, start)) 222b3b94faaSDavid Teigland continue; 223b3b94faaSDavid Teigland 224b3b94faaSDavid Teigland error = gfs2_replay_read_block(jd, start, &bh_log); 225b3b94faaSDavid Teigland if (error) 226b3b94faaSDavid Teigland return error; 227b3b94faaSDavid Teigland 228b3b94faaSDavid Teigland bh_ip = gfs2_meta_new(gl, blkno); 229b3b94faaSDavid Teigland memcpy(bh_ip->b_data, bh_log->b_data, bh_log->b_size); 230b3b94faaSDavid Teigland 231b3b94faaSDavid Teigland if (gfs2_meta_check(sdp, bh_ip)) 232b3b94faaSDavid Teigland error = -EIO; 233b3b94faaSDavid Teigland else 234b3b94faaSDavid Teigland mark_buffer_dirty(bh_ip); 235b3b94faaSDavid Teigland 236b3b94faaSDavid Teigland brelse(bh_log); 237b3b94faaSDavid Teigland brelse(bh_ip); 238b3b94faaSDavid Teigland 239b3b94faaSDavid Teigland if (error) 240b3b94faaSDavid Teigland break; 241b3b94faaSDavid Teigland 242b3b94faaSDavid Teigland sdp->sd_replayed_blocks++; 243b3b94faaSDavid Teigland } 244b3b94faaSDavid Teigland 245b3b94faaSDavid Teigland return error; 246b3b94faaSDavid Teigland } 247b3b94faaSDavid Teigland 248b3b94faaSDavid Teigland static void buf_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass) 249b3b94faaSDavid Teigland { 250feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(jd->jd_inode); 251feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 252b3b94faaSDavid Teigland 253b3b94faaSDavid Teigland if (error) { 2547276b3b0SSteven Whitehouse gfs2_meta_sync(ip->i_gl); 255b3b94faaSDavid Teigland return; 256b3b94faaSDavid Teigland } 257b3b94faaSDavid Teigland if (pass != 1) 258b3b94faaSDavid Teigland return; 259b3b94faaSDavid Teigland 2607276b3b0SSteven Whitehouse gfs2_meta_sync(ip->i_gl); 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, 299cd915493SSteven Whitehouse sizeof(u64))); 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 310cd915493SSteven Whitehouse if (offset + sizeof(u64) > 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 325cd915493SSteven Whitehouse offset += sizeof(u64); 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, 33455167622SAl Viro struct gfs2_log_header_host *head, int pass) 335b3b94faaSDavid Teigland { 336feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 337b3b94faaSDavid Teigland 338b3b94faaSDavid Teigland if (pass != 0) 339b3b94faaSDavid Teigland return; 340b3b94faaSDavid Teigland 341b3b94faaSDavid Teigland sdp->sd_found_revokes = 0; 342b3b94faaSDavid Teigland sdp->sd_replay_tail = head->lh_tail; 343b3b94faaSDavid Teigland } 344b3b94faaSDavid Teigland 345b3b94faaSDavid Teigland static int revoke_lo_scan_elements(struct gfs2_jdesc *jd, unsigned int start, 346b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld, __be64 *ptr, 347b3b94faaSDavid Teigland int pass) 348b3b94faaSDavid Teigland { 349feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 350b3b94faaSDavid Teigland unsigned int blks = be32_to_cpu(ld->ld_length); 351b3b94faaSDavid Teigland unsigned int revokes = be32_to_cpu(ld->ld_data1); 352b3b94faaSDavid Teigland struct buffer_head *bh; 353b3b94faaSDavid Teigland unsigned int offset; 354cd915493SSteven Whitehouse u64 blkno; 355b3b94faaSDavid Teigland int first = 1; 356b3b94faaSDavid Teigland int error; 357b3b94faaSDavid Teigland 358b3b94faaSDavid Teigland if (pass != 0 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_REVOKE) 359b3b94faaSDavid Teigland return 0; 360b3b94faaSDavid Teigland 361b3b94faaSDavid Teigland offset = sizeof(struct gfs2_log_descriptor); 362b3b94faaSDavid Teigland 363b3b94faaSDavid Teigland for (; blks; gfs2_replay_incr_blk(sdp, &start), blks--) { 364b3b94faaSDavid Teigland error = gfs2_replay_read_block(jd, start, &bh); 365b3b94faaSDavid Teigland if (error) 366b3b94faaSDavid Teigland return error; 367b3b94faaSDavid Teigland 368b3b94faaSDavid Teigland if (!first) 369b3b94faaSDavid Teigland gfs2_metatype_check(sdp, bh, GFS2_METATYPE_LB); 370b3b94faaSDavid Teigland 371cd915493SSteven Whitehouse while (offset + sizeof(u64) <= sdp->sd_sb.sb_bsize) { 372b3b94faaSDavid Teigland blkno = be64_to_cpu(*(__be64 *)(bh->b_data + offset)); 373b3b94faaSDavid Teigland 374b3b94faaSDavid Teigland error = gfs2_revoke_add(sdp, blkno, start); 375b3b94faaSDavid Teigland if (error < 0) 376b3b94faaSDavid Teigland return error; 377b3b94faaSDavid Teigland else if (error) 378b3b94faaSDavid Teigland sdp->sd_found_revokes++; 379b3b94faaSDavid Teigland 380b3b94faaSDavid Teigland if (!--revokes) 381b3b94faaSDavid Teigland break; 382cd915493SSteven Whitehouse offset += sizeof(u64); 383b3b94faaSDavid Teigland } 384b3b94faaSDavid Teigland 385b3b94faaSDavid Teigland brelse(bh); 386b3b94faaSDavid Teigland offset = sizeof(struct gfs2_meta_header); 387b3b94faaSDavid Teigland first = 0; 388b3b94faaSDavid Teigland } 389b3b94faaSDavid Teigland 390b3b94faaSDavid Teigland return 0; 391b3b94faaSDavid Teigland } 392b3b94faaSDavid Teigland 393b3b94faaSDavid Teigland static void revoke_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass) 394b3b94faaSDavid Teigland { 395feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 396b3b94faaSDavid Teigland 397b3b94faaSDavid Teigland if (error) { 398b3b94faaSDavid Teigland gfs2_revoke_clean(sdp); 399b3b94faaSDavid Teigland return; 400b3b94faaSDavid Teigland } 401b3b94faaSDavid Teigland if (pass != 1) 402b3b94faaSDavid Teigland return; 403b3b94faaSDavid Teigland 404b3b94faaSDavid Teigland fs_info(sdp, "jid=%u: Found %u revoke tags\n", 405b3b94faaSDavid Teigland jd->jd_jid, sdp->sd_found_revokes); 406b3b94faaSDavid Teigland 407b3b94faaSDavid Teigland gfs2_revoke_clean(sdp); 408b3b94faaSDavid Teigland } 409b3b94faaSDavid Teigland 410b3b94faaSDavid Teigland static void rg_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 411b3b94faaSDavid Teigland { 412b3b94faaSDavid Teigland struct gfs2_rgrpd *rgd; 4135c676f6dSSteven Whitehouse struct gfs2_trans *tr = current->journal_info; 414b3b94faaSDavid Teigland 4155c676f6dSSteven Whitehouse tr->tr_touched = 1; 416b3b94faaSDavid Teigland 417b3b94faaSDavid Teigland rgd = container_of(le, struct gfs2_rgrpd, rd_le); 418b3b94faaSDavid Teigland 419b3b94faaSDavid Teigland gfs2_log_lock(sdp); 42068835625SBenjamin Marzinski if (!list_empty(&le->le_list)){ 42168835625SBenjamin Marzinski gfs2_log_unlock(sdp); 42268835625SBenjamin Marzinski return; 42368835625SBenjamin Marzinski } 42468835625SBenjamin Marzinski gfs2_rgrp_bh_hold(rgd); 425b3b94faaSDavid Teigland sdp->sd_log_num_rg++; 426b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_rg); 427b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 428b3b94faaSDavid Teigland } 429b3b94faaSDavid Teigland 430b3b94faaSDavid Teigland static void rg_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) 431b3b94faaSDavid Teigland { 432b3b94faaSDavid Teigland struct list_head *head = &sdp->sd_log_le_rg; 433b3b94faaSDavid Teigland struct gfs2_rgrpd *rgd; 434b3b94faaSDavid Teigland 435b3b94faaSDavid Teigland while (!list_empty(head)) { 436b3b94faaSDavid Teigland rgd = list_entry(head->next, struct gfs2_rgrpd, rd_le.le_list); 437b3b94faaSDavid Teigland list_del_init(&rgd->rd_le.le_list); 438b3b94faaSDavid Teigland sdp->sd_log_num_rg--; 439b3b94faaSDavid Teigland 440b3b94faaSDavid Teigland gfs2_rgrp_repolish_clones(rgd); 441b3b94faaSDavid Teigland gfs2_rgrp_bh_put(rgd); 442b3b94faaSDavid Teigland } 443b3b94faaSDavid Teigland gfs2_assert_warn(sdp, !sdp->sd_log_num_rg); 444b3b94faaSDavid Teigland } 445b3b94faaSDavid Teigland 44618ec7d5cSSteven Whitehouse /** 44718ec7d5cSSteven Whitehouse * databuf_lo_add - Add a databuf to the transaction. 44818ec7d5cSSteven Whitehouse * 44918ec7d5cSSteven Whitehouse * This is used in two distinct cases: 45018ec7d5cSSteven Whitehouse * i) In ordered write mode 45118ec7d5cSSteven Whitehouse * We put the data buffer on a list so that we can ensure that its 45218ec7d5cSSteven Whitehouse * synced to disk at the right time 45318ec7d5cSSteven Whitehouse * ii) In journaled data mode 45418ec7d5cSSteven Whitehouse * We need to journal the data block in the same way as metadata in 45518ec7d5cSSteven Whitehouse * the functions above. The difference is that here we have a tag 45618ec7d5cSSteven Whitehouse * which is two __be64's being the block number (as per meta data) 45718ec7d5cSSteven Whitehouse * and a flag which says whether the data block needs escaping or 45818ec7d5cSSteven Whitehouse * not. This means we need a new log entry for each 251 or so data 45918ec7d5cSSteven Whitehouse * blocks, which isn't an enormous overhead but twice as much as 46018ec7d5cSSteven Whitehouse * for normal metadata blocks. 46118ec7d5cSSteven Whitehouse */ 462b3b94faaSDavid Teigland static void databuf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 463b3b94faaSDavid Teigland { 46418ec7d5cSSteven Whitehouse struct gfs2_bufdata *bd = container_of(le, struct gfs2_bufdata, bd_le); 4655c676f6dSSteven Whitehouse struct gfs2_trans *tr = current->journal_info; 46618ec7d5cSSteven Whitehouse struct address_space *mapping = bd->bd_bh->b_page->mapping; 467feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(mapping->host); 468b3b94faaSDavid Teigland 4698bd95727SSteven Whitehouse gfs2_log_lock(sdp); 4702332c443SRobert Peterson if (!list_empty(&bd->bd_list_tr)) { 4712332c443SRobert Peterson gfs2_log_unlock(sdp); 4722332c443SRobert Peterson return; 4732332c443SRobert Peterson } 47418ec7d5cSSteven Whitehouse tr->tr_touched = 1; 47518ec7d5cSSteven Whitehouse tr->tr_num_buf++; 47618ec7d5cSSteven Whitehouse list_add(&bd->bd_list_tr, &tr->tr_list_buf); 4778bd95727SSteven Whitehouse gfs2_log_unlock(sdp); 478ddf4b426SBenjamin Marzinski if (!list_empty(&le->le_list)) 479ddf4b426SBenjamin Marzinski return; 4802332c443SRobert Peterson 481b61dde79SSteven Whitehouse gfs2_trans_add_gl(bd->bd_gl); 4822332c443SRobert Peterson if (gfs2_is_jdata(ip)) { 48318ec7d5cSSteven Whitehouse sdp->sd_log_num_jdata++; 4842332c443SRobert Peterson gfs2_pin(sdp, bd->bd_bh); 4852332c443SRobert Peterson tr->tr_num_databuf_new++; 48613538b8eSSteven Whitehouse } 4872332c443SRobert Peterson sdp->sd_log_num_databuf++; 4882332c443SRobert Peterson gfs2_log_lock(sdp); 4892332c443SRobert Peterson list_add(&le->le_list, &sdp->sd_log_le_databuf); 490b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 491b3b94faaSDavid Teigland } 492b3b94faaSDavid Teigland 49318ec7d5cSSteven Whitehouse static int gfs2_check_magic(struct buffer_head *bh) 49418ec7d5cSSteven Whitehouse { 49518ec7d5cSSteven Whitehouse struct page *page = bh->b_page; 49618ec7d5cSSteven Whitehouse void *kaddr; 49718ec7d5cSSteven Whitehouse __be32 *ptr; 49818ec7d5cSSteven Whitehouse int rv = 0; 49918ec7d5cSSteven Whitehouse 50018ec7d5cSSteven Whitehouse kaddr = kmap_atomic(page, KM_USER0); 50118ec7d5cSSteven Whitehouse ptr = kaddr + bh_offset(bh); 50218ec7d5cSSteven Whitehouse if (*ptr == cpu_to_be32(GFS2_MAGIC)) 50318ec7d5cSSteven Whitehouse rv = 1; 504c312c4fdSRussell Cattelan kunmap_atomic(kaddr, KM_USER0); 50518ec7d5cSSteven Whitehouse 50618ec7d5cSSteven Whitehouse return rv; 50718ec7d5cSSteven Whitehouse } 50818ec7d5cSSteven Whitehouse 50918ec7d5cSSteven Whitehouse /** 51018ec7d5cSSteven Whitehouse * databuf_lo_before_commit - Scan the data buffers, writing as we go 51118ec7d5cSSteven Whitehouse * 51218ec7d5cSSteven Whitehouse * Here we scan through the lists of buffers and make the assumption 51318ec7d5cSSteven Whitehouse * that any buffer thats been pinned is being journaled, and that 51418ec7d5cSSteven Whitehouse * any unpinned buffer is an ordered write data buffer and therefore 51518ec7d5cSSteven Whitehouse * will be written back rather than journaled. 51618ec7d5cSSteven Whitehouse */ 517b3b94faaSDavid Teigland static void databuf_lo_before_commit(struct gfs2_sbd *sdp) 518b3b94faaSDavid Teigland { 519b3b94faaSDavid Teigland LIST_HEAD(started); 52018ec7d5cSSteven Whitehouse struct gfs2_bufdata *bd1 = NULL, *bd2, *bdt; 52170209331SRussell Cattelan struct buffer_head *bh = NULL,*bh1 = NULL; 52218ec7d5cSSteven Whitehouse struct gfs2_log_descriptor *ld; 52318ec7d5cSSteven Whitehouse unsigned int limit; 52418ec7d5cSSteven Whitehouse unsigned int total_dbuf = sdp->sd_log_num_databuf; 52518ec7d5cSSteven Whitehouse unsigned int total_jdata = sdp->sd_log_num_jdata; 52618ec7d5cSSteven Whitehouse unsigned int num, n; 527f55ab26aSSteven Whitehouse __be64 *ptr = NULL; 528b3b94faaSDavid Teigland 5292332c443SRobert Peterson limit = databuf_limit(sdp); 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) { 54670209331SRussell Cattelan /* store off the buffer head in a local ptr since 54770209331SRussell Cattelan * gfs2_bufdata might change when we drop the log lock 54870209331SRussell Cattelan */ 54970209331SRussell Cattelan bh1 = bd1->bd_bh; 55070209331SRussell Cattelan 55118ec7d5cSSteven Whitehouse /* An ordered write buffer */ 55270209331SRussell Cattelan if (bh1 && !buffer_pinned(bh1)) { 55318ec7d5cSSteven Whitehouse list_move(&bd1->bd_le.le_list, &started); 55418ec7d5cSSteven Whitehouse if (bd1 == bd2) { 55518ec7d5cSSteven Whitehouse bd2 = NULL; 556568f4c96SSteven Whitehouse bd2 = list_prepare_entry(bd2, 557568f4c96SSteven Whitehouse &sdp->sd_log_le_databuf, 558568f4c96SSteven Whitehouse bd_le.le_list); 55918ec7d5cSSteven Whitehouse } 56018ec7d5cSSteven Whitehouse total_dbuf--; 56170209331SRussell Cattelan if (bh1) { 56270209331SRussell Cattelan if (buffer_dirty(bh1)) { 56370209331SRussell Cattelan get_bh(bh1); 56470209331SRussell Cattelan 565f55ab26aSSteven Whitehouse gfs2_log_unlock(sdp); 56670209331SRussell Cattelan 56770209331SRussell Cattelan ll_rw_block(SWRITE, 1, &bh1); 56870209331SRussell Cattelan brelse(bh1); 56970209331SRussell Cattelan 570f55ab26aSSteven Whitehouse gfs2_log_lock(sdp); 57118ec7d5cSSteven Whitehouse } 57218ec7d5cSSteven Whitehouse continue; 57318ec7d5cSSteven Whitehouse } 57418ec7d5cSSteven Whitehouse continue; 57570209331SRussell Cattelan } else if (bh1) { /* A journaled buffer */ 57618ec7d5cSSteven Whitehouse int magic; 57718ec7d5cSSteven Whitehouse gfs2_log_unlock(sdp); 57818ec7d5cSSteven Whitehouse if (!bh) { 57918ec7d5cSSteven Whitehouse bh = gfs2_log_get_buf(sdp); 580568f4c96SSteven Whitehouse ld = (struct gfs2_log_descriptor *) 581568f4c96SSteven Whitehouse bh->b_data; 5822332c443SRobert Peterson ptr = (__be64 *)(bh->b_data + 5832332c443SRobert Peterson DATABUF_OFFSET); 584568f4c96SSteven Whitehouse ld->ld_header.mh_magic = 585568f4c96SSteven Whitehouse cpu_to_be32(GFS2_MAGIC); 586568f4c96SSteven Whitehouse ld->ld_header.mh_type = 587e3167dedSSteven Whitehouse cpu_to_be32(GFS2_METATYPE_LD); 588568f4c96SSteven Whitehouse ld->ld_header.mh_format = 589e3167dedSSteven Whitehouse cpu_to_be32(GFS2_FORMAT_LD); 590568f4c96SSteven Whitehouse ld->ld_type = 591568f4c96SSteven Whitehouse cpu_to_be32(GFS2_LOG_DESC_JDATA); 59218ec7d5cSSteven Whitehouse ld->ld_length = cpu_to_be32(num + 1); 59318ec7d5cSSteven Whitehouse ld->ld_data1 = cpu_to_be32(num); 59418ec7d5cSSteven Whitehouse ld->ld_data2 = cpu_to_be32(0); 59518ec7d5cSSteven Whitehouse memset(ld->ld_reserved, 0, sizeof(ld->ld_reserved)); 59618ec7d5cSSteven Whitehouse } 59770209331SRussell Cattelan magic = gfs2_check_magic(bh1); 59870209331SRussell Cattelan *ptr++ = cpu_to_be64(bh1->b_blocknr); 59918ec7d5cSSteven Whitehouse *ptr++ = cpu_to_be64((__u64)magic); 60070209331SRussell Cattelan clear_buffer_escaped(bh1); 60118ec7d5cSSteven Whitehouse if (unlikely(magic != 0)) 60270209331SRussell Cattelan set_buffer_escaped(bh1); 603f55ab26aSSteven Whitehouse gfs2_log_lock(sdp); 6042332c443SRobert Peterson if (++n >= num) 60518ec7d5cSSteven Whitehouse break; 60670209331SRussell Cattelan } else if (!bh1) { 607623d9355SSteven Whitehouse total_dbuf--; 608623d9355SSteven Whitehouse sdp->sd_log_num_databuf--; 609623d9355SSteven Whitehouse list_del_init(&bd1->bd_le.le_list); 610623d9355SSteven Whitehouse if (bd1 == bd2) { 611623d9355SSteven Whitehouse bd2 = NULL; 612623d9355SSteven Whitehouse bd2 = list_prepare_entry(bd2, 613623d9355SSteven Whitehouse &sdp->sd_log_le_databuf, 614623d9355SSteven Whitehouse bd_le.le_list); 615623d9355SSteven Whitehouse } 616623d9355SSteven Whitehouse kmem_cache_free(gfs2_bufdata_cachep, bd1); 61718ec7d5cSSteven Whitehouse } 61818ec7d5cSSteven Whitehouse } 619f55ab26aSSteven Whitehouse gfs2_log_unlock(sdp); 620b3b94faaSDavid Teigland if (bh) { 6218fb68595SRobert Peterson set_buffer_mapped(bh); 62218ec7d5cSSteven Whitehouse set_buffer_dirty(bh); 623b3b94faaSDavid Teigland ll_rw_block(WRITE, 1, &bh); 62418ec7d5cSSteven Whitehouse bh = NULL; 625b3b94faaSDavid Teigland } 62618ec7d5cSSteven Whitehouse n = 0; 627f55ab26aSSteven Whitehouse gfs2_log_lock(sdp); 628568f4c96SSteven Whitehouse list_for_each_entry_continue(bd2, &sdp->sd_log_le_databuf, 629568f4c96SSteven Whitehouse bd_le.le_list) { 63018ec7d5cSSteven Whitehouse if (!bd2->bd_bh) 63118ec7d5cSSteven Whitehouse continue; 63218ec7d5cSSteven Whitehouse /* copy buffer if it needs escaping */ 633f55ab26aSSteven Whitehouse gfs2_log_unlock(sdp); 63418ec7d5cSSteven Whitehouse if (unlikely(buffer_escaped(bd2->bd_bh))) { 63518ec7d5cSSteven Whitehouse void *kaddr; 63618ec7d5cSSteven Whitehouse struct page *page = bd2->bd_bh->b_page; 63718ec7d5cSSteven Whitehouse bh = gfs2_log_get_buf(sdp); 63818ec7d5cSSteven Whitehouse kaddr = kmap_atomic(page, KM_USER0); 639568f4c96SSteven Whitehouse memcpy(bh->b_data, 640568f4c96SSteven Whitehouse kaddr + bh_offset(bd2->bd_bh), 641568f4c96SSteven Whitehouse sdp->sd_sb.sb_bsize); 642c312c4fdSRussell Cattelan kunmap_atomic(kaddr, KM_USER0); 64318ec7d5cSSteven Whitehouse *(__be32 *)bh->b_data = 0; 64418ec7d5cSSteven Whitehouse } else { 64518ec7d5cSSteven Whitehouse bh = gfs2_log_fake_buf(sdp, bd2->bd_bh); 646b3b94faaSDavid Teigland } 64718ec7d5cSSteven Whitehouse set_buffer_dirty(bh); 64818ec7d5cSSteven Whitehouse ll_rw_block(WRITE, 1, &bh); 649f55ab26aSSteven Whitehouse gfs2_log_lock(sdp); 65018ec7d5cSSteven Whitehouse if (++n >= num) 65118ec7d5cSSteven Whitehouse break; 65218ec7d5cSSteven Whitehouse } 65318ec7d5cSSteven Whitehouse bh = NULL; 65418ec7d5cSSteven Whitehouse total_dbuf -= num; 65518ec7d5cSSteven Whitehouse total_jdata -= num; 65618ec7d5cSSteven Whitehouse } 657f55ab26aSSteven Whitehouse gfs2_log_unlock(sdp); 658f55ab26aSSteven Whitehouse 65918ec7d5cSSteven Whitehouse /* Wait on all ordered buffers */ 660b3b94faaSDavid Teigland while (!list_empty(&started)) { 66113538b8eSSteven Whitehouse gfs2_log_lock(sdp); 662568f4c96SSteven Whitehouse bd1 = list_entry(started.next, struct gfs2_bufdata, 663568f4c96SSteven Whitehouse bd_le.le_list); 66408867605SSteven Whitehouse list_del_init(&bd1->bd_le.le_list); 665b3b94faaSDavid Teigland sdp->sd_log_num_databuf--; 66618ec7d5cSSteven Whitehouse bh = bd1->bd_bh; 667b3b94faaSDavid Teigland if (bh) { 6685c676f6dSSteven Whitehouse bh->b_private = NULL; 66915d00c0bSSteven Whitehouse get_bh(bh); 670b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 671b3b94faaSDavid Teigland wait_on_buffer(bh); 672b3b94faaSDavid Teigland brelse(bh); 673b3b94faaSDavid Teigland } else 674b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 675b3b94faaSDavid Teigland 6763a8476ddSSteven Whitehouse kmem_cache_free(gfs2_bufdata_cachep, bd1); 677b3b94faaSDavid Teigland } 678b3b94faaSDavid Teigland 67918ec7d5cSSteven Whitehouse /* We've removed all the ordered write bufs here, so only jdata left */ 68018ec7d5cSSteven Whitehouse gfs2_assert_warn(sdp, sdp->sd_log_num_databuf == sdp->sd_log_num_jdata); 681b3b94faaSDavid Teigland } 682b3b94faaSDavid Teigland 68318ec7d5cSSteven Whitehouse static int databuf_lo_scan_elements(struct gfs2_jdesc *jd, unsigned int start, 68418ec7d5cSSteven Whitehouse struct gfs2_log_descriptor *ld, 68518ec7d5cSSteven Whitehouse __be64 *ptr, int pass) 68618ec7d5cSSteven Whitehouse { 687feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(jd->jd_inode); 688feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 6895c676f6dSSteven Whitehouse struct gfs2_glock *gl = ip->i_gl; 69018ec7d5cSSteven Whitehouse unsigned int blks = be32_to_cpu(ld->ld_data1); 69118ec7d5cSSteven Whitehouse struct buffer_head *bh_log, *bh_ip; 692cd915493SSteven Whitehouse u64 blkno; 693cd915493SSteven Whitehouse u64 esc; 69418ec7d5cSSteven Whitehouse int error = 0; 69518ec7d5cSSteven Whitehouse 69618ec7d5cSSteven Whitehouse if (pass != 1 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_JDATA) 69718ec7d5cSSteven Whitehouse return 0; 69818ec7d5cSSteven Whitehouse 69918ec7d5cSSteven Whitehouse gfs2_replay_incr_blk(sdp, &start); 70018ec7d5cSSteven Whitehouse for (; blks; gfs2_replay_incr_blk(sdp, &start), blks--) { 70118ec7d5cSSteven Whitehouse blkno = be64_to_cpu(*ptr++); 70218ec7d5cSSteven Whitehouse esc = be64_to_cpu(*ptr++); 70318ec7d5cSSteven Whitehouse 70418ec7d5cSSteven Whitehouse sdp->sd_found_blocks++; 70518ec7d5cSSteven Whitehouse 70618ec7d5cSSteven Whitehouse if (gfs2_revoke_check(sdp, blkno, start)) 70718ec7d5cSSteven Whitehouse continue; 70818ec7d5cSSteven Whitehouse 70918ec7d5cSSteven Whitehouse error = gfs2_replay_read_block(jd, start, &bh_log); 71018ec7d5cSSteven Whitehouse if (error) 71118ec7d5cSSteven Whitehouse return error; 71218ec7d5cSSteven Whitehouse 71318ec7d5cSSteven Whitehouse bh_ip = gfs2_meta_new(gl, blkno); 71418ec7d5cSSteven Whitehouse memcpy(bh_ip->b_data, bh_log->b_data, bh_log->b_size); 71518ec7d5cSSteven Whitehouse 71618ec7d5cSSteven Whitehouse /* Unescape */ 71718ec7d5cSSteven Whitehouse if (esc) { 71818ec7d5cSSteven Whitehouse __be32 *eptr = (__be32 *)bh_ip->b_data; 71918ec7d5cSSteven Whitehouse *eptr = cpu_to_be32(GFS2_MAGIC); 72018ec7d5cSSteven Whitehouse } 72118ec7d5cSSteven Whitehouse mark_buffer_dirty(bh_ip); 72218ec7d5cSSteven Whitehouse 72318ec7d5cSSteven Whitehouse brelse(bh_log); 72418ec7d5cSSteven Whitehouse brelse(bh_ip); 72518ec7d5cSSteven Whitehouse if (error) 72618ec7d5cSSteven Whitehouse break; 72718ec7d5cSSteven Whitehouse 72818ec7d5cSSteven Whitehouse sdp->sd_replayed_blocks++; 72918ec7d5cSSteven Whitehouse } 73018ec7d5cSSteven Whitehouse 73118ec7d5cSSteven Whitehouse return error; 73218ec7d5cSSteven Whitehouse } 73318ec7d5cSSteven Whitehouse 73418ec7d5cSSteven Whitehouse /* FIXME: sort out accounting for log blocks etc. */ 73518ec7d5cSSteven Whitehouse 73618ec7d5cSSteven Whitehouse static void databuf_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass) 73718ec7d5cSSteven Whitehouse { 738feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(jd->jd_inode); 739feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 74018ec7d5cSSteven Whitehouse 74118ec7d5cSSteven Whitehouse if (error) { 7427276b3b0SSteven Whitehouse gfs2_meta_sync(ip->i_gl); 74318ec7d5cSSteven Whitehouse return; 74418ec7d5cSSteven Whitehouse } 74518ec7d5cSSteven Whitehouse if (pass != 1) 74618ec7d5cSSteven Whitehouse return; 74718ec7d5cSSteven Whitehouse 74818ec7d5cSSteven Whitehouse /* data sync? */ 7497276b3b0SSteven Whitehouse gfs2_meta_sync(ip->i_gl); 75018ec7d5cSSteven Whitehouse 75118ec7d5cSSteven Whitehouse fs_info(sdp, "jid=%u: Replayed %u of %u data blocks\n", 75218ec7d5cSSteven Whitehouse jd->jd_jid, sdp->sd_replayed_blocks, sdp->sd_found_blocks); 75318ec7d5cSSteven Whitehouse } 75418ec7d5cSSteven Whitehouse 75518ec7d5cSSteven Whitehouse static void databuf_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) 75618ec7d5cSSteven Whitehouse { 75718ec7d5cSSteven Whitehouse struct list_head *head = &sdp->sd_log_le_databuf; 75818ec7d5cSSteven Whitehouse struct gfs2_bufdata *bd; 75918ec7d5cSSteven Whitehouse 76018ec7d5cSSteven Whitehouse while (!list_empty(head)) { 76118ec7d5cSSteven Whitehouse bd = list_entry(head->next, struct gfs2_bufdata, bd_le.le_list); 762b8e1aabfSSteven Whitehouse list_del_init(&bd->bd_le.le_list); 76318ec7d5cSSteven Whitehouse sdp->sd_log_num_databuf--; 76418ec7d5cSSteven Whitehouse sdp->sd_log_num_jdata--; 76518ec7d5cSSteven Whitehouse gfs2_unpin(sdp, bd->bd_bh, ai); 76618ec7d5cSSteven Whitehouse } 76718ec7d5cSSteven Whitehouse gfs2_assert_warn(sdp, !sdp->sd_log_num_databuf); 76818ec7d5cSSteven Whitehouse gfs2_assert_warn(sdp, !sdp->sd_log_num_jdata); 76918ec7d5cSSteven Whitehouse } 77018ec7d5cSSteven Whitehouse 77118ec7d5cSSteven Whitehouse 772b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_glock_lops = { 773b3b94faaSDavid Teigland .lo_add = glock_lo_add, 774b3b94faaSDavid Teigland .lo_after_commit = glock_lo_after_commit, 775ea67eedbSSteven Whitehouse .lo_name = "glock", 776b3b94faaSDavid Teigland }; 777b3b94faaSDavid Teigland 778b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_buf_lops = { 779b3b94faaSDavid Teigland .lo_add = buf_lo_add, 780b3b94faaSDavid Teigland .lo_incore_commit = buf_lo_incore_commit, 781b3b94faaSDavid Teigland .lo_before_commit = buf_lo_before_commit, 782b3b94faaSDavid Teigland .lo_after_commit = buf_lo_after_commit, 783b3b94faaSDavid Teigland .lo_before_scan = buf_lo_before_scan, 784b3b94faaSDavid Teigland .lo_scan_elements = buf_lo_scan_elements, 785b3b94faaSDavid Teigland .lo_after_scan = buf_lo_after_scan, 786ea67eedbSSteven Whitehouse .lo_name = "buf", 787b3b94faaSDavid Teigland }; 788b3b94faaSDavid Teigland 789b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_revoke_lops = { 790b3b94faaSDavid Teigland .lo_add = revoke_lo_add, 791b3b94faaSDavid Teigland .lo_before_commit = revoke_lo_before_commit, 792b3b94faaSDavid Teigland .lo_before_scan = revoke_lo_before_scan, 793b3b94faaSDavid Teigland .lo_scan_elements = revoke_lo_scan_elements, 794b3b94faaSDavid Teigland .lo_after_scan = revoke_lo_after_scan, 795ea67eedbSSteven Whitehouse .lo_name = "revoke", 796b3b94faaSDavid Teigland }; 797b3b94faaSDavid Teigland 798b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_rg_lops = { 799b3b94faaSDavid Teigland .lo_add = rg_lo_add, 800b3b94faaSDavid Teigland .lo_after_commit = rg_lo_after_commit, 801ea67eedbSSteven Whitehouse .lo_name = "rg", 802b3b94faaSDavid Teigland }; 803b3b94faaSDavid Teigland 804b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_databuf_lops = { 805b3b94faaSDavid Teigland .lo_add = databuf_lo_add, 80618ec7d5cSSteven Whitehouse .lo_incore_commit = buf_lo_incore_commit, 807b3b94faaSDavid Teigland .lo_before_commit = databuf_lo_before_commit, 80818ec7d5cSSteven Whitehouse .lo_after_commit = databuf_lo_after_commit, 80918ec7d5cSSteven Whitehouse .lo_scan_elements = databuf_lo_scan_elements, 81018ec7d5cSSteven Whitehouse .lo_after_scan = databuf_lo_after_scan, 811ea67eedbSSteven Whitehouse .lo_name = "databuf", 812b3b94faaSDavid Teigland }; 813b3b94faaSDavid Teigland 814b09e593dSSteven Whitehouse const struct gfs2_log_operations *gfs2_log_ops[] = { 815b3b94faaSDavid Teigland &gfs2_glock_lops, 816b3b94faaSDavid Teigland &gfs2_buf_lops, 817b3b94faaSDavid Teigland &gfs2_revoke_lops, 818b3b94faaSDavid Teigland &gfs2_rg_lops, 819b3b94faaSDavid Teigland &gfs2_databuf_lops, 820ea67eedbSSteven Whitehouse NULL, 821b3b94faaSDavid Teigland }; 822b3b94faaSDavid Teigland 823