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> 16c969f58cSSteven Whitehouse #include <linux/bio.h> 17c969f58cSSteven Whitehouse #include <linux/fs.h> 18b3b94faaSDavid Teigland 19b3b94faaSDavid Teigland #include "gfs2.h" 205c676f6dSSteven Whitehouse #include "incore.h" 212332c443SRobert Peterson #include "inode.h" 22b3b94faaSDavid Teigland #include "glock.h" 23b3b94faaSDavid Teigland #include "log.h" 24b3b94faaSDavid Teigland #include "lops.h" 25b3b94faaSDavid Teigland #include "meta_io.h" 26b3b94faaSDavid Teigland #include "recovery.h" 27b3b94faaSDavid Teigland #include "rgrp.h" 28b3b94faaSDavid Teigland #include "trans.h" 295c676f6dSSteven Whitehouse #include "util.h" 3063997775SSteven Whitehouse #include "trace_gfs2.h" 31b3b94faaSDavid Teigland 329b9107a5SSteven Whitehouse /** 339b9107a5SSteven Whitehouse * gfs2_pin - Pin a buffer in memory 349b9107a5SSteven Whitehouse * @sdp: The superblock 359b9107a5SSteven Whitehouse * @bh: The buffer to be pinned 369b9107a5SSteven Whitehouse * 379b9107a5SSteven Whitehouse * The log lock must be held when calling this function 389b9107a5SSteven Whitehouse */ 399b9107a5SSteven Whitehouse static void gfs2_pin(struct gfs2_sbd *sdp, struct buffer_head *bh) 409b9107a5SSteven Whitehouse { 419b9107a5SSteven Whitehouse struct gfs2_bufdata *bd; 429b9107a5SSteven Whitehouse 439b9107a5SSteven Whitehouse gfs2_assert_withdraw(sdp, test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)); 449b9107a5SSteven Whitehouse 459b9107a5SSteven Whitehouse clear_buffer_dirty(bh); 469b9107a5SSteven Whitehouse if (test_set_buffer_pinned(bh)) 479b9107a5SSteven Whitehouse gfs2_assert_withdraw(sdp, 0); 489b9107a5SSteven Whitehouse if (!buffer_uptodate(bh)) 499b9107a5SSteven Whitehouse gfs2_io_error_bh(sdp, bh); 509b9107a5SSteven Whitehouse bd = bh->b_private; 519b9107a5SSteven Whitehouse /* If this buffer is in the AIL and it has already been written 529b9107a5SSteven Whitehouse * to in-place disk block, remove it from the AIL. 539b9107a5SSteven Whitehouse */ 54c618e87aSSteven Whitehouse spin_lock(&sdp->sd_ail_lock); 559b9107a5SSteven Whitehouse if (bd->bd_ail) 569b9107a5SSteven Whitehouse list_move(&bd->bd_ail_st_list, &bd->bd_ail->ai_ail2_list); 57c618e87aSSteven Whitehouse spin_unlock(&sdp->sd_ail_lock); 589b9107a5SSteven Whitehouse get_bh(bh); 595e687eacSBenjamin Marzinski atomic_inc(&sdp->sd_log_pinned); 6063997775SSteven Whitehouse trace_gfs2_pin(bd, 1); 619b9107a5SSteven Whitehouse } 629b9107a5SSteven Whitehouse 639b9107a5SSteven Whitehouse /** 649b9107a5SSteven Whitehouse * gfs2_unpin - Unpin a buffer 659b9107a5SSteven Whitehouse * @sdp: the filesystem the buffer belongs to 669b9107a5SSteven Whitehouse * @bh: The buffer to unpin 679b9107a5SSteven Whitehouse * @ai: 689b9107a5SSteven Whitehouse * 699b9107a5SSteven Whitehouse */ 709b9107a5SSteven Whitehouse 719b9107a5SSteven Whitehouse static void gfs2_unpin(struct gfs2_sbd *sdp, struct buffer_head *bh, 729b9107a5SSteven Whitehouse struct gfs2_ail *ai) 739b9107a5SSteven Whitehouse { 749b9107a5SSteven Whitehouse struct gfs2_bufdata *bd = bh->b_private; 759b9107a5SSteven Whitehouse 769b9107a5SSteven Whitehouse gfs2_assert_withdraw(sdp, buffer_uptodate(bh)); 779b9107a5SSteven Whitehouse 789b9107a5SSteven Whitehouse if (!buffer_pinned(bh)) 799b9107a5SSteven Whitehouse gfs2_assert_withdraw(sdp, 0); 809b9107a5SSteven Whitehouse 819b9107a5SSteven Whitehouse lock_buffer(bh); 829b9107a5SSteven Whitehouse mark_buffer_dirty(bh); 839b9107a5SSteven Whitehouse clear_buffer_pinned(bh); 849b9107a5SSteven Whitehouse 85d6a079e8SDave Chinner spin_lock(&sdp->sd_ail_lock); 869b9107a5SSteven Whitehouse if (bd->bd_ail) { 879b9107a5SSteven Whitehouse list_del(&bd->bd_ail_st_list); 889b9107a5SSteven Whitehouse brelse(bh); 899b9107a5SSteven Whitehouse } else { 909b9107a5SSteven Whitehouse struct gfs2_glock *gl = bd->bd_gl; 919b9107a5SSteven Whitehouse list_add(&bd->bd_ail_gl_list, &gl->gl_ail_list); 929b9107a5SSteven Whitehouse atomic_inc(&gl->gl_ail_count); 939b9107a5SSteven Whitehouse } 949b9107a5SSteven Whitehouse bd->bd_ail = ai; 959b9107a5SSteven Whitehouse list_add(&bd->bd_ail_st_list, &ai->ai_ail1_list); 96d6a079e8SDave Chinner spin_unlock(&sdp->sd_ail_lock); 97d6a079e8SDave Chinner 98bc015cb8SSteven Whitehouse if (test_and_clear_bit(GLF_LFLUSH, &bd->bd_gl->gl_flags)) 99bc015cb8SSteven Whitehouse gfs2_glock_schedule_for_reclaim(bd->bd_gl); 10063997775SSteven Whitehouse trace_gfs2_pin(bd, 0); 1019b9107a5SSteven Whitehouse unlock_buffer(bh); 1025e687eacSBenjamin Marzinski atomic_dec(&sdp->sd_log_pinned); 1039b9107a5SSteven Whitehouse } 1049b9107a5SSteven Whitehouse 10516615be1SSteven Whitehouse 10616615be1SSteven Whitehouse static inline struct gfs2_log_descriptor *bh_log_desc(struct buffer_head *bh) 10716615be1SSteven Whitehouse { 10816615be1SSteven Whitehouse return (struct gfs2_log_descriptor *)bh->b_data; 10916615be1SSteven Whitehouse } 11016615be1SSteven Whitehouse 11116615be1SSteven Whitehouse static inline __be64 *bh_log_ptr(struct buffer_head *bh) 11216615be1SSteven Whitehouse { 11316615be1SSteven Whitehouse struct gfs2_log_descriptor *ld = bh_log_desc(bh); 11416615be1SSteven Whitehouse return (__force __be64 *)(ld + 1); 11516615be1SSteven Whitehouse } 11616615be1SSteven Whitehouse 11716615be1SSteven Whitehouse static inline __be64 *bh_ptr_end(struct buffer_head *bh) 11816615be1SSteven Whitehouse { 11916615be1SSteven Whitehouse return (__force __be64 *)(bh->b_data + bh->b_size); 12016615be1SSteven Whitehouse } 12116615be1SSteven Whitehouse 12216615be1SSteven Whitehouse 12316615be1SSteven Whitehouse static struct buffer_head *gfs2_get_log_desc(struct gfs2_sbd *sdp, u32 ld_type) 12416615be1SSteven Whitehouse { 12516615be1SSteven Whitehouse struct buffer_head *bh = gfs2_log_get_buf(sdp); 12616615be1SSteven Whitehouse struct gfs2_log_descriptor *ld = bh_log_desc(bh); 12716615be1SSteven Whitehouse ld->ld_header.mh_magic = cpu_to_be32(GFS2_MAGIC); 12816615be1SSteven Whitehouse ld->ld_header.mh_type = cpu_to_be32(GFS2_METATYPE_LD); 12916615be1SSteven Whitehouse ld->ld_header.mh_format = cpu_to_be32(GFS2_FORMAT_LD); 13016615be1SSteven Whitehouse ld->ld_type = cpu_to_be32(ld_type); 13116615be1SSteven Whitehouse ld->ld_length = 0; 13216615be1SSteven Whitehouse ld->ld_data1 = 0; 13316615be1SSteven Whitehouse ld->ld_data2 = 0; 13416615be1SSteven Whitehouse memset(ld->ld_reserved, 0, sizeof(ld->ld_reserved)); 13516615be1SSteven Whitehouse return bh; 13616615be1SSteven Whitehouse } 13716615be1SSteven Whitehouse 138b3b94faaSDavid Teigland static void buf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 139b3b94faaSDavid Teigland { 140b3b94faaSDavid Teigland struct gfs2_bufdata *bd = container_of(le, struct gfs2_bufdata, bd_le); 1410ab7d13fSSteven Whitehouse struct gfs2_meta_header *mh; 142b3b94faaSDavid Teigland struct gfs2_trans *tr; 143b3b94faaSDavid Teigland 1449b9107a5SSteven Whitehouse lock_buffer(bd->bd_bh); 1458bd95727SSteven Whitehouse gfs2_log_lock(sdp); 1469b9107a5SSteven Whitehouse if (!list_empty(&bd->bd_list_tr)) 1479b9107a5SSteven Whitehouse goto out; 1485c676f6dSSteven Whitehouse tr = current->journal_info; 149b3b94faaSDavid Teigland tr->tr_touched = 1; 150b3b94faaSDavid Teigland tr->tr_num_buf++; 151b3b94faaSDavid Teigland list_add(&bd->bd_list_tr, &tr->tr_list_buf); 152b3b94faaSDavid Teigland if (!list_empty(&le->le_list)) 1539b9107a5SSteven Whitehouse goto out; 1542bcd610dSSteven Whitehouse set_bit(GLF_LFLUSH, &bd->bd_gl->gl_flags); 1552bcd610dSSteven Whitehouse set_bit(GLF_DIRTY, &bd->bd_gl->gl_flags); 156b3b94faaSDavid Teigland gfs2_meta_check(sdp, bd->bd_bh); 157a98ab220SSteven Whitehouse gfs2_pin(sdp, bd->bd_bh); 1580ab7d13fSSteven Whitehouse mh = (struct gfs2_meta_header *)bd->bd_bh->b_data; 1590ab7d13fSSteven Whitehouse mh->__pad0 = cpu_to_be64(0); 1600ab7d13fSSteven Whitehouse mh->mh_jid = cpu_to_be32(sdp->sd_jdesc->jd_jid); 161b3b94faaSDavid Teigland sdp->sd_log_num_buf++; 162b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_buf); 163b3b94faaSDavid Teigland tr->tr_num_buf_new++; 1649b9107a5SSteven Whitehouse out: 1659b9107a5SSteven Whitehouse gfs2_log_unlock(sdp); 1669b9107a5SSteven Whitehouse unlock_buffer(bd->bd_bh); 167b3b94faaSDavid Teigland } 168b3b94faaSDavid Teigland 169b3b94faaSDavid Teigland static void buf_lo_before_commit(struct gfs2_sbd *sdp) 170b3b94faaSDavid Teigland { 171b3b94faaSDavid Teigland struct buffer_head *bh; 172b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld; 173b3b94faaSDavid Teigland struct gfs2_bufdata *bd1 = NULL, *bd2; 174905d2aefSBob Peterson unsigned int total; 175b3b94faaSDavid Teigland unsigned int limit; 176b3b94faaSDavid Teigland unsigned int num; 177b3b94faaSDavid Teigland unsigned n; 178b3b94faaSDavid Teigland __be64 *ptr; 179b3b94faaSDavid Teigland 1802332c443SRobert Peterson limit = buf_limit(sdp); 181b3b94faaSDavid Teigland /* for 4k blocks, limit = 503 */ 182b3b94faaSDavid Teigland 183905d2aefSBob Peterson gfs2_log_lock(sdp); 184905d2aefSBob Peterson total = sdp->sd_log_num_buf; 185b3b94faaSDavid Teigland bd1 = bd2 = list_prepare_entry(bd1, &sdp->sd_log_le_buf, bd_le.le_list); 186b3b94faaSDavid Teigland while(total) { 187b3b94faaSDavid Teigland num = total; 188b3b94faaSDavid Teigland if (total > limit) 189b3b94faaSDavid Teigland num = limit; 190905d2aefSBob Peterson gfs2_log_unlock(sdp); 19116615be1SSteven Whitehouse bh = gfs2_get_log_desc(sdp, GFS2_LOG_DESC_METADATA); 192905d2aefSBob Peterson gfs2_log_lock(sdp); 19316615be1SSteven Whitehouse ld = bh_log_desc(bh); 19416615be1SSteven Whitehouse ptr = bh_log_ptr(bh); 195b3b94faaSDavid Teigland ld->ld_length = cpu_to_be32(num + 1); 196b3b94faaSDavid Teigland ld->ld_data1 = cpu_to_be32(num); 197b3b94faaSDavid Teigland 198b3b94faaSDavid Teigland n = 0; 199568f4c96SSteven Whitehouse list_for_each_entry_continue(bd1, &sdp->sd_log_le_buf, 200568f4c96SSteven Whitehouse bd_le.le_list) { 201b3b94faaSDavid Teigland *ptr++ = cpu_to_be64(bd1->bd_bh->b_blocknr); 202b3b94faaSDavid Teigland if (++n >= num) 203b3b94faaSDavid Teigland break; 204b3b94faaSDavid Teigland } 205b3b94faaSDavid Teigland 206905d2aefSBob Peterson gfs2_log_unlock(sdp); 207c969f58cSSteven Whitehouse submit_bh(WRITE_SYNC_PLUG, bh); 208905d2aefSBob Peterson gfs2_log_lock(sdp); 209b3b94faaSDavid Teigland 210b3b94faaSDavid Teigland n = 0; 211568f4c96SSteven Whitehouse list_for_each_entry_continue(bd2, &sdp->sd_log_le_buf, 212568f4c96SSteven Whitehouse bd_le.le_list) { 21316615be1SSteven Whitehouse get_bh(bd2->bd_bh); 214905d2aefSBob Peterson gfs2_log_unlock(sdp); 21516615be1SSteven Whitehouse lock_buffer(bd2->bd_bh); 216b3b94faaSDavid Teigland bh = gfs2_log_fake_buf(sdp, bd2->bd_bh); 217c969f58cSSteven Whitehouse submit_bh(WRITE_SYNC_PLUG, bh); 218905d2aefSBob Peterson gfs2_log_lock(sdp); 219b3b94faaSDavid Teigland if (++n >= num) 220b3b94faaSDavid Teigland break; 221b3b94faaSDavid Teigland } 222b3b94faaSDavid Teigland 223905d2aefSBob Peterson BUG_ON(total < num); 224b3b94faaSDavid Teigland total -= num; 225b3b94faaSDavid Teigland } 226905d2aefSBob Peterson gfs2_log_unlock(sdp); 227b3b94faaSDavid Teigland } 228b3b94faaSDavid Teigland 229b3b94faaSDavid Teigland static void buf_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) 230b3b94faaSDavid Teigland { 231b3b94faaSDavid Teigland struct list_head *head = &sdp->sd_log_le_buf; 232b3b94faaSDavid Teigland struct gfs2_bufdata *bd; 233b3b94faaSDavid Teigland 234b3b94faaSDavid Teigland while (!list_empty(head)) { 235b3b94faaSDavid Teigland bd = list_entry(head->next, struct gfs2_bufdata, bd_le.le_list); 236b3b94faaSDavid Teigland list_del_init(&bd->bd_le.le_list); 237b3b94faaSDavid Teigland sdp->sd_log_num_buf--; 238b3b94faaSDavid Teigland 239a98ab220SSteven Whitehouse gfs2_unpin(sdp, bd->bd_bh, ai); 240b3b94faaSDavid Teigland } 241b3b94faaSDavid Teigland gfs2_assert_warn(sdp, !sdp->sd_log_num_buf); 242b3b94faaSDavid Teigland } 243b3b94faaSDavid Teigland 244b3b94faaSDavid Teigland static void buf_lo_before_scan(struct gfs2_jdesc *jd, 24555167622SAl Viro struct gfs2_log_header_host *head, int pass) 246b3b94faaSDavid Teigland { 247feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 248b3b94faaSDavid Teigland 249b3b94faaSDavid Teigland if (pass != 0) 250b3b94faaSDavid Teigland return; 251b3b94faaSDavid Teigland 252b3b94faaSDavid Teigland sdp->sd_found_blocks = 0; 253b3b94faaSDavid Teigland sdp->sd_replayed_blocks = 0; 254b3b94faaSDavid Teigland } 255b3b94faaSDavid Teigland 256b3b94faaSDavid Teigland static int buf_lo_scan_elements(struct gfs2_jdesc *jd, unsigned int start, 257b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld, __be64 *ptr, 258b3b94faaSDavid Teigland int pass) 259b3b94faaSDavid Teigland { 260feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(jd->jd_inode); 261feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 2625c676f6dSSteven Whitehouse struct gfs2_glock *gl = ip->i_gl; 263b3b94faaSDavid Teigland unsigned int blks = be32_to_cpu(ld->ld_data1); 264b3b94faaSDavid Teigland struct buffer_head *bh_log, *bh_ip; 265cd915493SSteven Whitehouse u64 blkno; 266b3b94faaSDavid Teigland int error = 0; 267b3b94faaSDavid Teigland 268b3b94faaSDavid Teigland if (pass != 1 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_METADATA) 269b3b94faaSDavid Teigland return 0; 270b3b94faaSDavid Teigland 271b3b94faaSDavid Teigland gfs2_replay_incr_blk(sdp, &start); 272b3b94faaSDavid Teigland 273b3b94faaSDavid Teigland for (; blks; gfs2_replay_incr_blk(sdp, &start), blks--) { 274b3b94faaSDavid Teigland blkno = be64_to_cpu(*ptr++); 275b3b94faaSDavid Teigland 276b3b94faaSDavid Teigland sdp->sd_found_blocks++; 277b3b94faaSDavid Teigland 278b3b94faaSDavid Teigland if (gfs2_revoke_check(sdp, blkno, start)) 279b3b94faaSDavid Teigland continue; 280b3b94faaSDavid Teigland 281b3b94faaSDavid Teigland error = gfs2_replay_read_block(jd, start, &bh_log); 282b3b94faaSDavid Teigland if (error) 283b3b94faaSDavid Teigland return error; 284b3b94faaSDavid Teigland 285b3b94faaSDavid Teigland bh_ip = gfs2_meta_new(gl, blkno); 286b3b94faaSDavid Teigland memcpy(bh_ip->b_data, bh_log->b_data, bh_log->b_size); 287b3b94faaSDavid Teigland 288b3b94faaSDavid Teigland if (gfs2_meta_check(sdp, bh_ip)) 289b3b94faaSDavid Teigland error = -EIO; 290b3b94faaSDavid Teigland else 291b3b94faaSDavid Teigland mark_buffer_dirty(bh_ip); 292b3b94faaSDavid Teigland 293b3b94faaSDavid Teigland brelse(bh_log); 294b3b94faaSDavid Teigland brelse(bh_ip); 295b3b94faaSDavid Teigland 296b3b94faaSDavid Teigland if (error) 297b3b94faaSDavid Teigland break; 298b3b94faaSDavid Teigland 299b3b94faaSDavid Teigland sdp->sd_replayed_blocks++; 300b3b94faaSDavid Teigland } 301b3b94faaSDavid Teigland 302b3b94faaSDavid Teigland return error; 303b3b94faaSDavid Teigland } 304b3b94faaSDavid Teigland 305b3b94faaSDavid Teigland static void buf_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass) 306b3b94faaSDavid Teigland { 307feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(jd->jd_inode); 308feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 309b3b94faaSDavid Teigland 310b3b94faaSDavid Teigland if (error) { 3117276b3b0SSteven Whitehouse gfs2_meta_sync(ip->i_gl); 312b3b94faaSDavid Teigland return; 313b3b94faaSDavid Teigland } 314b3b94faaSDavid Teigland if (pass != 1) 315b3b94faaSDavid Teigland return; 316b3b94faaSDavid Teigland 3177276b3b0SSteven Whitehouse gfs2_meta_sync(ip->i_gl); 318b3b94faaSDavid Teigland 319b3b94faaSDavid Teigland fs_info(sdp, "jid=%u: Replayed %u of %u blocks\n", 320b3b94faaSDavid Teigland jd->jd_jid, sdp->sd_replayed_blocks, sdp->sd_found_blocks); 321b3b94faaSDavid Teigland } 322b3b94faaSDavid Teigland 323b3b94faaSDavid Teigland static void revoke_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 324b3b94faaSDavid Teigland { 325b3b94faaSDavid Teigland struct gfs2_trans *tr; 326b3b94faaSDavid Teigland 3275c676f6dSSteven Whitehouse tr = current->journal_info; 328b3b94faaSDavid Teigland tr->tr_touched = 1; 329b3b94faaSDavid Teigland tr->tr_num_revoke++; 330b3b94faaSDavid Teigland sdp->sd_log_num_revoke++; 331b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_revoke); 332b3b94faaSDavid Teigland } 333b3b94faaSDavid Teigland 334b3b94faaSDavid Teigland static void revoke_lo_before_commit(struct gfs2_sbd *sdp) 335b3b94faaSDavid Teigland { 336b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld; 337b3b94faaSDavid Teigland struct gfs2_meta_header *mh; 338b3b94faaSDavid Teigland struct buffer_head *bh; 339b3b94faaSDavid Teigland unsigned int offset; 340b3b94faaSDavid Teigland struct list_head *head = &sdp->sd_log_le_revoke; 34182e86087SSteven Whitehouse struct gfs2_bufdata *bd; 342b3b94faaSDavid Teigland 343b3b94faaSDavid Teigland if (!sdp->sd_log_num_revoke) 344b3b94faaSDavid Teigland return; 345b3b94faaSDavid Teigland 34616615be1SSteven Whitehouse bh = gfs2_get_log_desc(sdp, GFS2_LOG_DESC_REVOKE); 34716615be1SSteven Whitehouse ld = bh_log_desc(bh); 348568f4c96SSteven Whitehouse ld->ld_length = cpu_to_be32(gfs2_struct2blk(sdp, sdp->sd_log_num_revoke, 349cd915493SSteven Whitehouse sizeof(u64))); 350b3b94faaSDavid Teigland ld->ld_data1 = cpu_to_be32(sdp->sd_log_num_revoke); 351b3b94faaSDavid Teigland offset = sizeof(struct gfs2_log_descriptor); 352b3b94faaSDavid Teigland 353b3b94faaSDavid Teigland while (!list_empty(head)) { 35482e86087SSteven Whitehouse bd = list_entry(head->next, struct gfs2_bufdata, bd_le.le_list); 35582e86087SSteven Whitehouse list_del_init(&bd->bd_le.le_list); 356b3b94faaSDavid Teigland sdp->sd_log_num_revoke--; 357b3b94faaSDavid Teigland 358cd915493SSteven Whitehouse if (offset + sizeof(u64) > sdp->sd_sb.sb_bsize) { 359c969f58cSSteven Whitehouse submit_bh(WRITE_SYNC_PLUG, bh); 360b3b94faaSDavid Teigland 361b3b94faaSDavid Teigland bh = gfs2_log_get_buf(sdp); 362b3b94faaSDavid Teigland mh = (struct gfs2_meta_header *)bh->b_data; 363b3b94faaSDavid Teigland mh->mh_magic = cpu_to_be32(GFS2_MAGIC); 364e3167dedSSteven Whitehouse mh->mh_type = cpu_to_be32(GFS2_METATYPE_LB); 365e3167dedSSteven Whitehouse mh->mh_format = cpu_to_be32(GFS2_FORMAT_LB); 366b3b94faaSDavid Teigland offset = sizeof(struct gfs2_meta_header); 367b3b94faaSDavid Teigland } 368b3b94faaSDavid Teigland 36982e86087SSteven Whitehouse *(__be64 *)(bh->b_data + offset) = cpu_to_be64(bd->bd_blkno); 3700820ab51SSteven Whitehouse kmem_cache_free(gfs2_bufdata_cachep, bd); 371b3b94faaSDavid Teigland 372cd915493SSteven Whitehouse offset += sizeof(u64); 373b3b94faaSDavid Teigland } 374b3b94faaSDavid Teigland gfs2_assert_withdraw(sdp, !sdp->sd_log_num_revoke); 375b3b94faaSDavid Teigland 376c969f58cSSteven Whitehouse submit_bh(WRITE_SYNC_PLUG, bh); 377b3b94faaSDavid Teigland } 378b3b94faaSDavid Teigland 379b3b94faaSDavid Teigland static void revoke_lo_before_scan(struct gfs2_jdesc *jd, 38055167622SAl Viro struct gfs2_log_header_host *head, int pass) 381b3b94faaSDavid Teigland { 382feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 383b3b94faaSDavid Teigland 384b3b94faaSDavid Teigland if (pass != 0) 385b3b94faaSDavid Teigland return; 386b3b94faaSDavid Teigland 387b3b94faaSDavid Teigland sdp->sd_found_revokes = 0; 388b3b94faaSDavid Teigland sdp->sd_replay_tail = head->lh_tail; 389b3b94faaSDavid Teigland } 390b3b94faaSDavid Teigland 391b3b94faaSDavid Teigland static int revoke_lo_scan_elements(struct gfs2_jdesc *jd, unsigned int start, 392b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld, __be64 *ptr, 393b3b94faaSDavid Teigland int pass) 394b3b94faaSDavid Teigland { 395feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 396b3b94faaSDavid Teigland unsigned int blks = be32_to_cpu(ld->ld_length); 397b3b94faaSDavid Teigland unsigned int revokes = be32_to_cpu(ld->ld_data1); 398b3b94faaSDavid Teigland struct buffer_head *bh; 399b3b94faaSDavid Teigland unsigned int offset; 400cd915493SSteven Whitehouse u64 blkno; 401b3b94faaSDavid Teigland int first = 1; 402b3b94faaSDavid Teigland int error; 403b3b94faaSDavid Teigland 404b3b94faaSDavid Teigland if (pass != 0 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_REVOKE) 405b3b94faaSDavid Teigland return 0; 406b3b94faaSDavid Teigland 407b3b94faaSDavid Teigland offset = sizeof(struct gfs2_log_descriptor); 408b3b94faaSDavid Teigland 409b3b94faaSDavid Teigland for (; blks; gfs2_replay_incr_blk(sdp, &start), blks--) { 410b3b94faaSDavid Teigland error = gfs2_replay_read_block(jd, start, &bh); 411b3b94faaSDavid Teigland if (error) 412b3b94faaSDavid Teigland return error; 413b3b94faaSDavid Teigland 414b3b94faaSDavid Teigland if (!first) 415b3b94faaSDavid Teigland gfs2_metatype_check(sdp, bh, GFS2_METATYPE_LB); 416b3b94faaSDavid Teigland 417cd915493SSteven Whitehouse while (offset + sizeof(u64) <= sdp->sd_sb.sb_bsize) { 418b3b94faaSDavid Teigland blkno = be64_to_cpu(*(__be64 *)(bh->b_data + offset)); 419b3b94faaSDavid Teigland 420b3b94faaSDavid Teigland error = gfs2_revoke_add(sdp, blkno, start); 4213ad62e87SBob Peterson if (error < 0) { 4223ad62e87SBob Peterson brelse(bh); 423b3b94faaSDavid Teigland return error; 4243ad62e87SBob Peterson } 425b3b94faaSDavid Teigland else if (error) 426b3b94faaSDavid Teigland sdp->sd_found_revokes++; 427b3b94faaSDavid Teigland 428b3b94faaSDavid Teigland if (!--revokes) 429b3b94faaSDavid Teigland break; 430cd915493SSteven Whitehouse offset += sizeof(u64); 431b3b94faaSDavid Teigland } 432b3b94faaSDavid Teigland 433b3b94faaSDavid Teigland brelse(bh); 434b3b94faaSDavid Teigland offset = sizeof(struct gfs2_meta_header); 435b3b94faaSDavid Teigland first = 0; 436b3b94faaSDavid Teigland } 437b3b94faaSDavid Teigland 438b3b94faaSDavid Teigland return 0; 439b3b94faaSDavid Teigland } 440b3b94faaSDavid Teigland 441b3b94faaSDavid Teigland static void revoke_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass) 442b3b94faaSDavid Teigland { 443feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 444b3b94faaSDavid Teigland 445b3b94faaSDavid Teigland if (error) { 446b3b94faaSDavid Teigland gfs2_revoke_clean(sdp); 447b3b94faaSDavid Teigland return; 448b3b94faaSDavid Teigland } 449b3b94faaSDavid Teigland if (pass != 1) 450b3b94faaSDavid Teigland return; 451b3b94faaSDavid Teigland 452b3b94faaSDavid Teigland fs_info(sdp, "jid=%u: Found %u revoke tags\n", 453b3b94faaSDavid Teigland jd->jd_jid, sdp->sd_found_revokes); 454b3b94faaSDavid Teigland 455b3b94faaSDavid Teigland gfs2_revoke_clean(sdp); 456b3b94faaSDavid Teigland } 457b3b94faaSDavid Teigland 458b3b94faaSDavid Teigland static void rg_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 459b3b94faaSDavid Teigland { 460b3b94faaSDavid Teigland struct gfs2_rgrpd *rgd; 4615c676f6dSSteven Whitehouse struct gfs2_trans *tr = current->journal_info; 462b3b94faaSDavid Teigland 4635c676f6dSSteven Whitehouse tr->tr_touched = 1; 464b3b94faaSDavid Teigland 465b3b94faaSDavid Teigland rgd = container_of(le, struct gfs2_rgrpd, rd_le); 466b3b94faaSDavid Teigland 467b3b94faaSDavid Teigland gfs2_log_lock(sdp); 46868835625SBenjamin Marzinski if (!list_empty(&le->le_list)){ 46968835625SBenjamin Marzinski gfs2_log_unlock(sdp); 47068835625SBenjamin Marzinski return; 47168835625SBenjamin Marzinski } 47268835625SBenjamin Marzinski gfs2_rgrp_bh_hold(rgd); 473b3b94faaSDavid Teigland sdp->sd_log_num_rg++; 474b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_rg); 475b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 476b3b94faaSDavid Teigland } 477b3b94faaSDavid Teigland 478b3b94faaSDavid Teigland static void rg_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) 479b3b94faaSDavid Teigland { 480b3b94faaSDavid Teigland struct list_head *head = &sdp->sd_log_le_rg; 481b3b94faaSDavid Teigland struct gfs2_rgrpd *rgd; 482b3b94faaSDavid Teigland 483b3b94faaSDavid Teigland while (!list_empty(head)) { 484b3b94faaSDavid Teigland rgd = list_entry(head->next, struct gfs2_rgrpd, rd_le.le_list); 485b3b94faaSDavid Teigland list_del_init(&rgd->rd_le.le_list); 486b3b94faaSDavid Teigland sdp->sd_log_num_rg--; 487b3b94faaSDavid Teigland 488b3b94faaSDavid Teigland gfs2_rgrp_repolish_clones(rgd); 489b3b94faaSDavid Teigland gfs2_rgrp_bh_put(rgd); 490b3b94faaSDavid Teigland } 491b3b94faaSDavid Teigland gfs2_assert_warn(sdp, !sdp->sd_log_num_rg); 492b3b94faaSDavid Teigland } 493b3b94faaSDavid Teigland 49418ec7d5cSSteven Whitehouse /** 49518ec7d5cSSteven Whitehouse * databuf_lo_add - Add a databuf to the transaction. 49618ec7d5cSSteven Whitehouse * 49718ec7d5cSSteven Whitehouse * This is used in two distinct cases: 49818ec7d5cSSteven Whitehouse * i) In ordered write mode 49918ec7d5cSSteven Whitehouse * We put the data buffer on a list so that we can ensure that its 50018ec7d5cSSteven Whitehouse * synced to disk at the right time 50118ec7d5cSSteven Whitehouse * ii) In journaled data mode 50218ec7d5cSSteven Whitehouse * We need to journal the data block in the same way as metadata in 50318ec7d5cSSteven Whitehouse * the functions above. The difference is that here we have a tag 50418ec7d5cSSteven Whitehouse * which is two __be64's being the block number (as per meta data) 50518ec7d5cSSteven Whitehouse * and a flag which says whether the data block needs escaping or 50618ec7d5cSSteven Whitehouse * not. This means we need a new log entry for each 251 or so data 50718ec7d5cSSteven Whitehouse * blocks, which isn't an enormous overhead but twice as much as 50818ec7d5cSSteven Whitehouse * for normal metadata blocks. 50918ec7d5cSSteven Whitehouse */ 510b3b94faaSDavid Teigland static void databuf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 511b3b94faaSDavid Teigland { 51218ec7d5cSSteven Whitehouse struct gfs2_bufdata *bd = container_of(le, struct gfs2_bufdata, bd_le); 5135c676f6dSSteven Whitehouse struct gfs2_trans *tr = current->journal_info; 51418ec7d5cSSteven Whitehouse struct address_space *mapping = bd->bd_bh->b_page->mapping; 515feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(mapping->host); 516b3b94faaSDavid Teigland 5179b9107a5SSteven Whitehouse lock_buffer(bd->bd_bh); 5188bd95727SSteven Whitehouse gfs2_log_lock(sdp); 5199ff8ec32SSteven Whitehouse if (tr) { 5209b9107a5SSteven Whitehouse if (!list_empty(&bd->bd_list_tr)) 5219b9107a5SSteven Whitehouse goto out; 52218ec7d5cSSteven Whitehouse tr->tr_touched = 1; 523773ed1a0SRobert Peterson if (gfs2_is_jdata(ip)) { 52418ec7d5cSSteven Whitehouse tr->tr_num_buf++; 52518ec7d5cSSteven Whitehouse list_add(&bd->bd_list_tr, &tr->tr_list_buf); 526773ed1a0SRobert Peterson } 5279ff8ec32SSteven Whitehouse } 528ddf4b426SBenjamin Marzinski if (!list_empty(&le->le_list)) 5299b9107a5SSteven Whitehouse goto out; 5302332c443SRobert Peterson 5312bcd610dSSteven Whitehouse set_bit(GLF_LFLUSH, &bd->bd_gl->gl_flags); 5322bcd610dSSteven Whitehouse set_bit(GLF_DIRTY, &bd->bd_gl->gl_flags); 5332332c443SRobert Peterson if (gfs2_is_jdata(ip)) { 5342332c443SRobert Peterson gfs2_pin(sdp, bd->bd_bh); 5352332c443SRobert Peterson tr->tr_num_databuf_new++; 536bdcb8856SBob Peterson sdp->sd_log_num_databuf++; 537e5884636SDave Chinner list_add_tail(&le->le_list, &sdp->sd_log_le_databuf); 538d7b616e2SSteven Whitehouse } else { 539e5884636SDave Chinner list_add_tail(&le->le_list, &sdp->sd_log_le_ordered); 540d7b616e2SSteven Whitehouse } 5419b9107a5SSteven Whitehouse out: 542b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 5439b9107a5SSteven Whitehouse unlock_buffer(bd->bd_bh); 544b3b94faaSDavid Teigland } 545b3b94faaSDavid Teigland 54616615be1SSteven Whitehouse static void gfs2_check_magic(struct buffer_head *bh) 54718ec7d5cSSteven Whitehouse { 54818ec7d5cSSteven Whitehouse void *kaddr; 54918ec7d5cSSteven Whitehouse __be32 *ptr; 55018ec7d5cSSteven Whitehouse 55116615be1SSteven Whitehouse clear_buffer_escaped(bh); 55216615be1SSteven Whitehouse kaddr = kmap_atomic(bh->b_page, KM_USER0); 55318ec7d5cSSteven Whitehouse ptr = kaddr + bh_offset(bh); 55418ec7d5cSSteven Whitehouse if (*ptr == cpu_to_be32(GFS2_MAGIC)) 55516615be1SSteven Whitehouse set_buffer_escaped(bh); 556c312c4fdSRussell Cattelan kunmap_atomic(kaddr, KM_USER0); 55716615be1SSteven Whitehouse } 55818ec7d5cSSteven Whitehouse 55916615be1SSteven Whitehouse static void gfs2_write_blocks(struct gfs2_sbd *sdp, struct buffer_head *bh, 56016615be1SSteven Whitehouse struct list_head *list, struct list_head *done, 56116615be1SSteven Whitehouse unsigned int n) 56216615be1SSteven Whitehouse { 56316615be1SSteven Whitehouse struct buffer_head *bh1; 56416615be1SSteven Whitehouse struct gfs2_log_descriptor *ld; 56516615be1SSteven Whitehouse struct gfs2_bufdata *bd; 56616615be1SSteven Whitehouse __be64 *ptr; 56716615be1SSteven Whitehouse 56816615be1SSteven Whitehouse if (!bh) 56916615be1SSteven Whitehouse return; 57016615be1SSteven Whitehouse 57116615be1SSteven Whitehouse ld = bh_log_desc(bh); 57216615be1SSteven Whitehouse ld->ld_length = cpu_to_be32(n + 1); 57316615be1SSteven Whitehouse ld->ld_data1 = cpu_to_be32(n); 57416615be1SSteven Whitehouse 57516615be1SSteven Whitehouse ptr = bh_log_ptr(bh); 57616615be1SSteven Whitehouse 57716615be1SSteven Whitehouse get_bh(bh); 578c969f58cSSteven Whitehouse submit_bh(WRITE_SYNC_PLUG, bh); 57916615be1SSteven Whitehouse gfs2_log_lock(sdp); 58016615be1SSteven Whitehouse while(!list_empty(list)) { 58116615be1SSteven Whitehouse bd = list_entry(list->next, struct gfs2_bufdata, bd_le.le_list); 58216615be1SSteven Whitehouse list_move_tail(&bd->bd_le.le_list, done); 58316615be1SSteven Whitehouse get_bh(bd->bd_bh); 58416615be1SSteven Whitehouse while (be64_to_cpu(*ptr) != bd->bd_bh->b_blocknr) { 58516615be1SSteven Whitehouse gfs2_log_incr_head(sdp); 58616615be1SSteven Whitehouse ptr += 2; 58716615be1SSteven Whitehouse } 58816615be1SSteven Whitehouse gfs2_log_unlock(sdp); 58916615be1SSteven Whitehouse lock_buffer(bd->bd_bh); 59016615be1SSteven Whitehouse if (buffer_escaped(bd->bd_bh)) { 59116615be1SSteven Whitehouse void *kaddr; 59216615be1SSteven Whitehouse bh1 = gfs2_log_get_buf(sdp); 59316615be1SSteven Whitehouse kaddr = kmap_atomic(bd->bd_bh->b_page, KM_USER0); 59416615be1SSteven Whitehouse memcpy(bh1->b_data, kaddr + bh_offset(bd->bd_bh), 59516615be1SSteven Whitehouse bh1->b_size); 59616615be1SSteven Whitehouse kunmap_atomic(kaddr, KM_USER0); 59716615be1SSteven Whitehouse *(__be32 *)bh1->b_data = 0; 59816615be1SSteven Whitehouse clear_buffer_escaped(bd->bd_bh); 59916615be1SSteven Whitehouse unlock_buffer(bd->bd_bh); 60016615be1SSteven Whitehouse brelse(bd->bd_bh); 60116615be1SSteven Whitehouse } else { 60216615be1SSteven Whitehouse bh1 = gfs2_log_fake_buf(sdp, bd->bd_bh); 60316615be1SSteven Whitehouse } 604c969f58cSSteven Whitehouse submit_bh(WRITE_SYNC_PLUG, bh1); 60516615be1SSteven Whitehouse gfs2_log_lock(sdp); 60616615be1SSteven Whitehouse ptr += 2; 60716615be1SSteven Whitehouse } 60816615be1SSteven Whitehouse gfs2_log_unlock(sdp); 60916615be1SSteven Whitehouse brelse(bh); 61018ec7d5cSSteven Whitehouse } 61118ec7d5cSSteven Whitehouse 61218ec7d5cSSteven Whitehouse /** 61318ec7d5cSSteven Whitehouse * databuf_lo_before_commit - Scan the data buffers, writing as we go 61418ec7d5cSSteven Whitehouse * 61518ec7d5cSSteven Whitehouse */ 616d7b616e2SSteven Whitehouse 617b3b94faaSDavid Teigland static void databuf_lo_before_commit(struct gfs2_sbd *sdp) 618b3b94faaSDavid Teigland { 61916615be1SSteven Whitehouse struct gfs2_bufdata *bd = NULL; 62016615be1SSteven Whitehouse struct buffer_head *bh = NULL; 62116615be1SSteven Whitehouse unsigned int n = 0; 62216615be1SSteven Whitehouse __be64 *ptr = NULL, *end = NULL; 62316615be1SSteven Whitehouse LIST_HEAD(processed); 62416615be1SSteven Whitehouse LIST_HEAD(in_progress); 625b3b94faaSDavid Teigland 626f55ab26aSSteven Whitehouse gfs2_log_lock(sdp); 62716615be1SSteven Whitehouse while (!list_empty(&sdp->sd_log_le_databuf)) { 62816615be1SSteven Whitehouse if (ptr == end) { 629f55ab26aSSteven Whitehouse gfs2_log_unlock(sdp); 63016615be1SSteven Whitehouse gfs2_write_blocks(sdp, bh, &in_progress, &processed, n); 631d7b616e2SSteven Whitehouse n = 0; 63216615be1SSteven Whitehouse bh = gfs2_get_log_desc(sdp, GFS2_LOG_DESC_JDATA); 63316615be1SSteven Whitehouse ptr = bh_log_ptr(bh); 63416615be1SSteven Whitehouse end = bh_ptr_end(bh) - 1; 635f55ab26aSSteven Whitehouse gfs2_log_lock(sdp); 63618ec7d5cSSteven Whitehouse continue; 63716615be1SSteven Whitehouse } 63816615be1SSteven Whitehouse bd = list_entry(sdp->sd_log_le_databuf.next, struct gfs2_bufdata, bd_le.le_list); 63916615be1SSteven Whitehouse list_move_tail(&bd->bd_le.le_list, &in_progress); 64016615be1SSteven Whitehouse gfs2_check_magic(bd->bd_bh); 64116615be1SSteven Whitehouse *ptr++ = cpu_to_be64(bd->bd_bh->b_blocknr); 64216615be1SSteven Whitehouse *ptr++ = cpu_to_be64(buffer_escaped(bh) ? 1 : 0); 64316615be1SSteven Whitehouse n++; 64416615be1SSteven Whitehouse } 645f55ab26aSSteven Whitehouse gfs2_log_unlock(sdp); 64616615be1SSteven Whitehouse gfs2_write_blocks(sdp, bh, &in_progress, &processed, n); 647f55ab26aSSteven Whitehouse gfs2_log_lock(sdp); 64816615be1SSteven Whitehouse list_splice(&processed, &sdp->sd_log_le_databuf); 649f55ab26aSSteven Whitehouse gfs2_log_unlock(sdp); 650b3b94faaSDavid Teigland } 651b3b94faaSDavid Teigland 65218ec7d5cSSteven Whitehouse static int databuf_lo_scan_elements(struct gfs2_jdesc *jd, unsigned int start, 65318ec7d5cSSteven Whitehouse struct gfs2_log_descriptor *ld, 65418ec7d5cSSteven Whitehouse __be64 *ptr, int pass) 65518ec7d5cSSteven Whitehouse { 656feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(jd->jd_inode); 657feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 6585c676f6dSSteven Whitehouse struct gfs2_glock *gl = ip->i_gl; 65918ec7d5cSSteven Whitehouse unsigned int blks = be32_to_cpu(ld->ld_data1); 66018ec7d5cSSteven Whitehouse struct buffer_head *bh_log, *bh_ip; 661cd915493SSteven Whitehouse u64 blkno; 662cd915493SSteven Whitehouse u64 esc; 66318ec7d5cSSteven Whitehouse int error = 0; 66418ec7d5cSSteven Whitehouse 66518ec7d5cSSteven Whitehouse if (pass != 1 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_JDATA) 66618ec7d5cSSteven Whitehouse return 0; 66718ec7d5cSSteven Whitehouse 66818ec7d5cSSteven Whitehouse gfs2_replay_incr_blk(sdp, &start); 66918ec7d5cSSteven Whitehouse for (; blks; gfs2_replay_incr_blk(sdp, &start), blks--) { 67018ec7d5cSSteven Whitehouse blkno = be64_to_cpu(*ptr++); 67118ec7d5cSSteven Whitehouse esc = be64_to_cpu(*ptr++); 67218ec7d5cSSteven Whitehouse 67318ec7d5cSSteven Whitehouse sdp->sd_found_blocks++; 67418ec7d5cSSteven Whitehouse 67518ec7d5cSSteven Whitehouse if (gfs2_revoke_check(sdp, blkno, start)) 67618ec7d5cSSteven Whitehouse continue; 67718ec7d5cSSteven Whitehouse 67818ec7d5cSSteven Whitehouse error = gfs2_replay_read_block(jd, start, &bh_log); 67918ec7d5cSSteven Whitehouse if (error) 68018ec7d5cSSteven Whitehouse return error; 68118ec7d5cSSteven Whitehouse 68218ec7d5cSSteven Whitehouse bh_ip = gfs2_meta_new(gl, blkno); 68318ec7d5cSSteven Whitehouse memcpy(bh_ip->b_data, bh_log->b_data, bh_log->b_size); 68418ec7d5cSSteven Whitehouse 68518ec7d5cSSteven Whitehouse /* Unescape */ 68618ec7d5cSSteven Whitehouse if (esc) { 68718ec7d5cSSteven Whitehouse __be32 *eptr = (__be32 *)bh_ip->b_data; 68818ec7d5cSSteven Whitehouse *eptr = cpu_to_be32(GFS2_MAGIC); 68918ec7d5cSSteven Whitehouse } 69018ec7d5cSSteven Whitehouse mark_buffer_dirty(bh_ip); 69118ec7d5cSSteven Whitehouse 69218ec7d5cSSteven Whitehouse brelse(bh_log); 69318ec7d5cSSteven Whitehouse brelse(bh_ip); 69418ec7d5cSSteven Whitehouse if (error) 69518ec7d5cSSteven Whitehouse break; 69618ec7d5cSSteven Whitehouse 69718ec7d5cSSteven Whitehouse sdp->sd_replayed_blocks++; 69818ec7d5cSSteven Whitehouse } 69918ec7d5cSSteven Whitehouse 70018ec7d5cSSteven Whitehouse return error; 70118ec7d5cSSteven Whitehouse } 70218ec7d5cSSteven Whitehouse 70318ec7d5cSSteven Whitehouse /* FIXME: sort out accounting for log blocks etc. */ 70418ec7d5cSSteven Whitehouse 70518ec7d5cSSteven Whitehouse static void databuf_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass) 70618ec7d5cSSteven Whitehouse { 707feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(jd->jd_inode); 708feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 70918ec7d5cSSteven Whitehouse 71018ec7d5cSSteven Whitehouse if (error) { 7117276b3b0SSteven Whitehouse gfs2_meta_sync(ip->i_gl); 71218ec7d5cSSteven Whitehouse return; 71318ec7d5cSSteven Whitehouse } 71418ec7d5cSSteven Whitehouse if (pass != 1) 71518ec7d5cSSteven Whitehouse return; 71618ec7d5cSSteven Whitehouse 71718ec7d5cSSteven Whitehouse /* data sync? */ 7187276b3b0SSteven Whitehouse gfs2_meta_sync(ip->i_gl); 71918ec7d5cSSteven Whitehouse 72018ec7d5cSSteven Whitehouse fs_info(sdp, "jid=%u: Replayed %u of %u data blocks\n", 72118ec7d5cSSteven Whitehouse jd->jd_jid, sdp->sd_replayed_blocks, sdp->sd_found_blocks); 72218ec7d5cSSteven Whitehouse } 72318ec7d5cSSteven Whitehouse 72418ec7d5cSSteven Whitehouse static void databuf_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) 72518ec7d5cSSteven Whitehouse { 72618ec7d5cSSteven Whitehouse struct list_head *head = &sdp->sd_log_le_databuf; 72718ec7d5cSSteven Whitehouse struct gfs2_bufdata *bd; 72818ec7d5cSSteven Whitehouse 72918ec7d5cSSteven Whitehouse while (!list_empty(head)) { 73018ec7d5cSSteven Whitehouse bd = list_entry(head->next, struct gfs2_bufdata, bd_le.le_list); 731b8e1aabfSSteven Whitehouse list_del_init(&bd->bd_le.le_list); 73218ec7d5cSSteven Whitehouse sdp->sd_log_num_databuf--; 73318ec7d5cSSteven Whitehouse gfs2_unpin(sdp, bd->bd_bh, ai); 73418ec7d5cSSteven Whitehouse } 73518ec7d5cSSteven Whitehouse gfs2_assert_warn(sdp, !sdp->sd_log_num_databuf); 73618ec7d5cSSteven Whitehouse } 73718ec7d5cSSteven Whitehouse 73818ec7d5cSSteven Whitehouse 739b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_buf_lops = { 740b3b94faaSDavid Teigland .lo_add = buf_lo_add, 741b3b94faaSDavid Teigland .lo_before_commit = buf_lo_before_commit, 742b3b94faaSDavid Teigland .lo_after_commit = buf_lo_after_commit, 743b3b94faaSDavid Teigland .lo_before_scan = buf_lo_before_scan, 744b3b94faaSDavid Teigland .lo_scan_elements = buf_lo_scan_elements, 745b3b94faaSDavid Teigland .lo_after_scan = buf_lo_after_scan, 746ea67eedbSSteven Whitehouse .lo_name = "buf", 747b3b94faaSDavid Teigland }; 748b3b94faaSDavid Teigland 749b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_revoke_lops = { 750b3b94faaSDavid Teigland .lo_add = revoke_lo_add, 751b3b94faaSDavid Teigland .lo_before_commit = revoke_lo_before_commit, 752b3b94faaSDavid Teigland .lo_before_scan = revoke_lo_before_scan, 753b3b94faaSDavid Teigland .lo_scan_elements = revoke_lo_scan_elements, 754b3b94faaSDavid Teigland .lo_after_scan = revoke_lo_after_scan, 755ea67eedbSSteven Whitehouse .lo_name = "revoke", 756b3b94faaSDavid Teigland }; 757b3b94faaSDavid Teigland 758b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_rg_lops = { 759b3b94faaSDavid Teigland .lo_add = rg_lo_add, 760b3b94faaSDavid Teigland .lo_after_commit = rg_lo_after_commit, 761ea67eedbSSteven Whitehouse .lo_name = "rg", 762b3b94faaSDavid Teigland }; 763b3b94faaSDavid Teigland 764b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_databuf_lops = { 765b3b94faaSDavid Teigland .lo_add = databuf_lo_add, 766b3b94faaSDavid Teigland .lo_before_commit = databuf_lo_before_commit, 76718ec7d5cSSteven Whitehouse .lo_after_commit = databuf_lo_after_commit, 76818ec7d5cSSteven Whitehouse .lo_scan_elements = databuf_lo_scan_elements, 76918ec7d5cSSteven Whitehouse .lo_after_scan = databuf_lo_after_scan, 770ea67eedbSSteven Whitehouse .lo_name = "databuf", 771b3b94faaSDavid Teigland }; 772b3b94faaSDavid Teigland 773b09e593dSSteven Whitehouse const struct gfs2_log_operations *gfs2_log_ops[] = { 774b3b94faaSDavid Teigland &gfs2_databuf_lops, 77516615be1SSteven Whitehouse &gfs2_buf_lops, 77616615be1SSteven Whitehouse &gfs2_rg_lops, 77716615be1SSteven Whitehouse &gfs2_revoke_lops, 778ea67eedbSSteven Whitehouse NULL, 779b3b94faaSDavid Teigland }; 780b3b94faaSDavid Teigland 781