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 */ 549b9107a5SSteven Whitehouse if (bd->bd_ail) 559b9107a5SSteven Whitehouse list_move(&bd->bd_ail_st_list, &bd->bd_ail->ai_ail2_list); 569b9107a5SSteven Whitehouse get_bh(bh); 5763997775SSteven Whitehouse trace_gfs2_pin(bd, 1); 589b9107a5SSteven Whitehouse } 599b9107a5SSteven Whitehouse 609b9107a5SSteven Whitehouse /** 619b9107a5SSteven Whitehouse * gfs2_unpin - Unpin a buffer 629b9107a5SSteven Whitehouse * @sdp: the filesystem the buffer belongs to 639b9107a5SSteven Whitehouse * @bh: The buffer to unpin 649b9107a5SSteven Whitehouse * @ai: 659b9107a5SSteven Whitehouse * 669b9107a5SSteven Whitehouse */ 679b9107a5SSteven Whitehouse 689b9107a5SSteven Whitehouse static void gfs2_unpin(struct gfs2_sbd *sdp, struct buffer_head *bh, 699b9107a5SSteven Whitehouse struct gfs2_ail *ai) 709b9107a5SSteven Whitehouse { 719b9107a5SSteven Whitehouse struct gfs2_bufdata *bd = bh->b_private; 729b9107a5SSteven Whitehouse 739b9107a5SSteven Whitehouse gfs2_assert_withdraw(sdp, buffer_uptodate(bh)); 749b9107a5SSteven Whitehouse 759b9107a5SSteven Whitehouse if (!buffer_pinned(bh)) 769b9107a5SSteven Whitehouse gfs2_assert_withdraw(sdp, 0); 779b9107a5SSteven Whitehouse 789b9107a5SSteven Whitehouse lock_buffer(bh); 799b9107a5SSteven Whitehouse mark_buffer_dirty(bh); 809b9107a5SSteven Whitehouse clear_buffer_pinned(bh); 819b9107a5SSteven Whitehouse 829b9107a5SSteven Whitehouse gfs2_log_lock(sdp); 839b9107a5SSteven Whitehouse if (bd->bd_ail) { 849b9107a5SSteven Whitehouse list_del(&bd->bd_ail_st_list); 859b9107a5SSteven Whitehouse brelse(bh); 869b9107a5SSteven Whitehouse } else { 879b9107a5SSteven Whitehouse struct gfs2_glock *gl = bd->bd_gl; 889b9107a5SSteven Whitehouse list_add(&bd->bd_ail_gl_list, &gl->gl_ail_list); 899b9107a5SSteven Whitehouse atomic_inc(&gl->gl_ail_count); 909b9107a5SSteven Whitehouse } 919b9107a5SSteven Whitehouse bd->bd_ail = ai; 929b9107a5SSteven Whitehouse list_add(&bd->bd_ail_st_list, &ai->ai_ail1_list); 932bcd610dSSteven Whitehouse clear_bit(GLF_LFLUSH, &bd->bd_gl->gl_flags); 9463997775SSteven Whitehouse trace_gfs2_pin(bd, 0); 959b9107a5SSteven Whitehouse gfs2_log_unlock(sdp); 969b9107a5SSteven Whitehouse unlock_buffer(bh); 979b9107a5SSteven Whitehouse } 989b9107a5SSteven Whitehouse 9916615be1SSteven Whitehouse 10016615be1SSteven Whitehouse static inline struct gfs2_log_descriptor *bh_log_desc(struct buffer_head *bh) 10116615be1SSteven Whitehouse { 10216615be1SSteven Whitehouse return (struct gfs2_log_descriptor *)bh->b_data; 10316615be1SSteven Whitehouse } 10416615be1SSteven Whitehouse 10516615be1SSteven Whitehouse static inline __be64 *bh_log_ptr(struct buffer_head *bh) 10616615be1SSteven Whitehouse { 10716615be1SSteven Whitehouse struct gfs2_log_descriptor *ld = bh_log_desc(bh); 10816615be1SSteven Whitehouse return (__force __be64 *)(ld + 1); 10916615be1SSteven Whitehouse } 11016615be1SSteven Whitehouse 11116615be1SSteven Whitehouse static inline __be64 *bh_ptr_end(struct buffer_head *bh) 11216615be1SSteven Whitehouse { 11316615be1SSteven Whitehouse return (__force __be64 *)(bh->b_data + bh->b_size); 11416615be1SSteven Whitehouse } 11516615be1SSteven Whitehouse 11616615be1SSteven Whitehouse 11716615be1SSteven Whitehouse static struct buffer_head *gfs2_get_log_desc(struct gfs2_sbd *sdp, u32 ld_type) 11816615be1SSteven Whitehouse { 11916615be1SSteven Whitehouse struct buffer_head *bh = gfs2_log_get_buf(sdp); 12016615be1SSteven Whitehouse struct gfs2_log_descriptor *ld = bh_log_desc(bh); 12116615be1SSteven Whitehouse ld->ld_header.mh_magic = cpu_to_be32(GFS2_MAGIC); 12216615be1SSteven Whitehouse ld->ld_header.mh_type = cpu_to_be32(GFS2_METATYPE_LD); 12316615be1SSteven Whitehouse ld->ld_header.mh_format = cpu_to_be32(GFS2_FORMAT_LD); 12416615be1SSteven Whitehouse ld->ld_type = cpu_to_be32(ld_type); 12516615be1SSteven Whitehouse ld->ld_length = 0; 12616615be1SSteven Whitehouse ld->ld_data1 = 0; 12716615be1SSteven Whitehouse ld->ld_data2 = 0; 12816615be1SSteven Whitehouse memset(ld->ld_reserved, 0, sizeof(ld->ld_reserved)); 12916615be1SSteven Whitehouse return bh; 13016615be1SSteven Whitehouse } 13116615be1SSteven Whitehouse 132b3b94faaSDavid Teigland static void buf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 133b3b94faaSDavid Teigland { 134b3b94faaSDavid Teigland struct gfs2_bufdata *bd = container_of(le, struct gfs2_bufdata, bd_le); 135b3b94faaSDavid Teigland struct gfs2_trans *tr; 136b3b94faaSDavid Teigland 1379b9107a5SSteven Whitehouse lock_buffer(bd->bd_bh); 1388bd95727SSteven Whitehouse gfs2_log_lock(sdp); 1399b9107a5SSteven Whitehouse if (!list_empty(&bd->bd_list_tr)) 1409b9107a5SSteven Whitehouse goto out; 1415c676f6dSSteven Whitehouse tr = current->journal_info; 142b3b94faaSDavid Teigland tr->tr_touched = 1; 143b3b94faaSDavid Teigland tr->tr_num_buf++; 144b3b94faaSDavid Teigland list_add(&bd->bd_list_tr, &tr->tr_list_buf); 145b3b94faaSDavid Teigland if (!list_empty(&le->le_list)) 1469b9107a5SSteven Whitehouse goto out; 1472bcd610dSSteven Whitehouse set_bit(GLF_LFLUSH, &bd->bd_gl->gl_flags); 1482bcd610dSSteven Whitehouse set_bit(GLF_DIRTY, &bd->bd_gl->gl_flags); 149b3b94faaSDavid Teigland gfs2_meta_check(sdp, bd->bd_bh); 150a98ab220SSteven Whitehouse gfs2_pin(sdp, bd->bd_bh); 151b3b94faaSDavid Teigland sdp->sd_log_num_buf++; 152b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_buf); 153b3b94faaSDavid Teigland tr->tr_num_buf_new++; 1549b9107a5SSteven Whitehouse out: 1559b9107a5SSteven Whitehouse gfs2_log_unlock(sdp); 1569b9107a5SSteven Whitehouse unlock_buffer(bd->bd_bh); 157b3b94faaSDavid Teigland } 158b3b94faaSDavid Teigland 159b3b94faaSDavid Teigland static void buf_lo_before_commit(struct gfs2_sbd *sdp) 160b3b94faaSDavid Teigland { 161b3b94faaSDavid Teigland struct buffer_head *bh; 162b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld; 163b3b94faaSDavid Teigland struct gfs2_bufdata *bd1 = NULL, *bd2; 164905d2aefSBob Peterson unsigned int total; 165b3b94faaSDavid Teigland unsigned int limit; 166b3b94faaSDavid Teigland unsigned int num; 167b3b94faaSDavid Teigland unsigned n; 168b3b94faaSDavid Teigland __be64 *ptr; 169b3b94faaSDavid Teigland 1702332c443SRobert Peterson limit = buf_limit(sdp); 171b3b94faaSDavid Teigland /* for 4k blocks, limit = 503 */ 172b3b94faaSDavid Teigland 173905d2aefSBob Peterson gfs2_log_lock(sdp); 174905d2aefSBob Peterson total = sdp->sd_log_num_buf; 175b3b94faaSDavid Teigland bd1 = bd2 = list_prepare_entry(bd1, &sdp->sd_log_le_buf, bd_le.le_list); 176b3b94faaSDavid Teigland while(total) { 177b3b94faaSDavid Teigland num = total; 178b3b94faaSDavid Teigland if (total > limit) 179b3b94faaSDavid Teigland num = limit; 180905d2aefSBob Peterson gfs2_log_unlock(sdp); 18116615be1SSteven Whitehouse bh = gfs2_get_log_desc(sdp, GFS2_LOG_DESC_METADATA); 182905d2aefSBob Peterson gfs2_log_lock(sdp); 18316615be1SSteven Whitehouse ld = bh_log_desc(bh); 18416615be1SSteven Whitehouse ptr = bh_log_ptr(bh); 185b3b94faaSDavid Teigland ld->ld_length = cpu_to_be32(num + 1); 186b3b94faaSDavid Teigland ld->ld_data1 = cpu_to_be32(num); 187b3b94faaSDavid Teigland 188b3b94faaSDavid Teigland n = 0; 189568f4c96SSteven Whitehouse list_for_each_entry_continue(bd1, &sdp->sd_log_le_buf, 190568f4c96SSteven Whitehouse bd_le.le_list) { 191b3b94faaSDavid Teigland *ptr++ = cpu_to_be64(bd1->bd_bh->b_blocknr); 192b3b94faaSDavid Teigland if (++n >= num) 193b3b94faaSDavid Teigland break; 194b3b94faaSDavid Teigland } 195b3b94faaSDavid Teigland 196905d2aefSBob Peterson gfs2_log_unlock(sdp); 197c969f58cSSteven Whitehouse submit_bh(WRITE_SYNC_PLUG, bh); 198905d2aefSBob Peterson gfs2_log_lock(sdp); 199b3b94faaSDavid Teigland 200b3b94faaSDavid Teigland n = 0; 201568f4c96SSteven Whitehouse list_for_each_entry_continue(bd2, &sdp->sd_log_le_buf, 202568f4c96SSteven Whitehouse bd_le.le_list) { 20316615be1SSteven Whitehouse get_bh(bd2->bd_bh); 204905d2aefSBob Peterson gfs2_log_unlock(sdp); 20516615be1SSteven Whitehouse lock_buffer(bd2->bd_bh); 206b3b94faaSDavid Teigland bh = gfs2_log_fake_buf(sdp, bd2->bd_bh); 207c969f58cSSteven Whitehouse submit_bh(WRITE_SYNC_PLUG, bh); 208905d2aefSBob Peterson gfs2_log_lock(sdp); 209b3b94faaSDavid Teigland if (++n >= num) 210b3b94faaSDavid Teigland break; 211b3b94faaSDavid Teigland } 212b3b94faaSDavid Teigland 213905d2aefSBob Peterson BUG_ON(total < num); 214b3b94faaSDavid Teigland total -= num; 215b3b94faaSDavid Teigland } 216905d2aefSBob Peterson gfs2_log_unlock(sdp); 217b3b94faaSDavid Teigland } 218b3b94faaSDavid Teigland 219b3b94faaSDavid Teigland static void buf_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) 220b3b94faaSDavid Teigland { 221b3b94faaSDavid Teigland struct list_head *head = &sdp->sd_log_le_buf; 222b3b94faaSDavid Teigland struct gfs2_bufdata *bd; 223b3b94faaSDavid Teigland 224b3b94faaSDavid Teigland while (!list_empty(head)) { 225b3b94faaSDavid Teigland bd = list_entry(head->next, struct gfs2_bufdata, bd_le.le_list); 226b3b94faaSDavid Teigland list_del_init(&bd->bd_le.le_list); 227b3b94faaSDavid Teigland sdp->sd_log_num_buf--; 228b3b94faaSDavid Teigland 229a98ab220SSteven Whitehouse gfs2_unpin(sdp, bd->bd_bh, ai); 230b3b94faaSDavid Teigland } 231b3b94faaSDavid Teigland gfs2_assert_warn(sdp, !sdp->sd_log_num_buf); 232b3b94faaSDavid Teigland } 233b3b94faaSDavid Teigland 234b3b94faaSDavid Teigland static void buf_lo_before_scan(struct gfs2_jdesc *jd, 23555167622SAl Viro struct gfs2_log_header_host *head, int pass) 236b3b94faaSDavid Teigland { 237feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 238b3b94faaSDavid Teigland 239b3b94faaSDavid Teigland if (pass != 0) 240b3b94faaSDavid Teigland return; 241b3b94faaSDavid Teigland 242b3b94faaSDavid Teigland sdp->sd_found_blocks = 0; 243b3b94faaSDavid Teigland sdp->sd_replayed_blocks = 0; 244b3b94faaSDavid Teigland } 245b3b94faaSDavid Teigland 246b3b94faaSDavid Teigland static int buf_lo_scan_elements(struct gfs2_jdesc *jd, unsigned int start, 247b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld, __be64 *ptr, 248b3b94faaSDavid Teigland 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); 2525c676f6dSSteven Whitehouse struct gfs2_glock *gl = ip->i_gl; 253b3b94faaSDavid Teigland unsigned int blks = be32_to_cpu(ld->ld_data1); 254b3b94faaSDavid Teigland struct buffer_head *bh_log, *bh_ip; 255cd915493SSteven Whitehouse u64 blkno; 256b3b94faaSDavid Teigland int error = 0; 257b3b94faaSDavid Teigland 258b3b94faaSDavid Teigland if (pass != 1 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_METADATA) 259b3b94faaSDavid Teigland return 0; 260b3b94faaSDavid Teigland 261b3b94faaSDavid Teigland gfs2_replay_incr_blk(sdp, &start); 262b3b94faaSDavid Teigland 263b3b94faaSDavid Teigland for (; blks; gfs2_replay_incr_blk(sdp, &start), blks--) { 264b3b94faaSDavid Teigland blkno = be64_to_cpu(*ptr++); 265b3b94faaSDavid Teigland 266b3b94faaSDavid Teigland sdp->sd_found_blocks++; 267b3b94faaSDavid Teigland 268b3b94faaSDavid Teigland if (gfs2_revoke_check(sdp, blkno, start)) 269b3b94faaSDavid Teigland continue; 270b3b94faaSDavid Teigland 271b3b94faaSDavid Teigland error = gfs2_replay_read_block(jd, start, &bh_log); 272b3b94faaSDavid Teigland if (error) 273b3b94faaSDavid Teigland return error; 274b3b94faaSDavid Teigland 275b3b94faaSDavid Teigland bh_ip = gfs2_meta_new(gl, blkno); 276b3b94faaSDavid Teigland memcpy(bh_ip->b_data, bh_log->b_data, bh_log->b_size); 277b3b94faaSDavid Teigland 278b3b94faaSDavid Teigland if (gfs2_meta_check(sdp, bh_ip)) 279b3b94faaSDavid Teigland error = -EIO; 280b3b94faaSDavid Teigland else 281b3b94faaSDavid Teigland mark_buffer_dirty(bh_ip); 282b3b94faaSDavid Teigland 283b3b94faaSDavid Teigland brelse(bh_log); 284b3b94faaSDavid Teigland brelse(bh_ip); 285b3b94faaSDavid Teigland 286b3b94faaSDavid Teigland if (error) 287b3b94faaSDavid Teigland break; 288b3b94faaSDavid Teigland 289b3b94faaSDavid Teigland sdp->sd_replayed_blocks++; 290b3b94faaSDavid Teigland } 291b3b94faaSDavid Teigland 292b3b94faaSDavid Teigland return error; 293b3b94faaSDavid Teigland } 294b3b94faaSDavid Teigland 295b3b94faaSDavid Teigland static void buf_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass) 296b3b94faaSDavid Teigland { 297feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(jd->jd_inode); 298feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 299b3b94faaSDavid Teigland 300b3b94faaSDavid Teigland if (error) { 3017276b3b0SSteven Whitehouse gfs2_meta_sync(ip->i_gl); 302b3b94faaSDavid Teigland return; 303b3b94faaSDavid Teigland } 304b3b94faaSDavid Teigland if (pass != 1) 305b3b94faaSDavid Teigland return; 306b3b94faaSDavid Teigland 3077276b3b0SSteven Whitehouse gfs2_meta_sync(ip->i_gl); 308b3b94faaSDavid Teigland 309b3b94faaSDavid Teigland fs_info(sdp, "jid=%u: Replayed %u of %u blocks\n", 310b3b94faaSDavid Teigland jd->jd_jid, sdp->sd_replayed_blocks, sdp->sd_found_blocks); 311b3b94faaSDavid Teigland } 312b3b94faaSDavid Teigland 313b3b94faaSDavid Teigland static void revoke_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 314b3b94faaSDavid Teigland { 315b3b94faaSDavid Teigland struct gfs2_trans *tr; 316b3b94faaSDavid Teigland 3175c676f6dSSteven Whitehouse tr = current->journal_info; 318b3b94faaSDavid Teigland tr->tr_touched = 1; 319b3b94faaSDavid Teigland tr->tr_num_revoke++; 320b3b94faaSDavid Teigland sdp->sd_log_num_revoke++; 321b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_revoke); 322b3b94faaSDavid Teigland } 323b3b94faaSDavid Teigland 324b3b94faaSDavid Teigland static void revoke_lo_before_commit(struct gfs2_sbd *sdp) 325b3b94faaSDavid Teigland { 326b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld; 327b3b94faaSDavid Teigland struct gfs2_meta_header *mh; 328b3b94faaSDavid Teigland struct buffer_head *bh; 329b3b94faaSDavid Teigland unsigned int offset; 330b3b94faaSDavid Teigland struct list_head *head = &sdp->sd_log_le_revoke; 33182e86087SSteven Whitehouse struct gfs2_bufdata *bd; 332b3b94faaSDavid Teigland 333b3b94faaSDavid Teigland if (!sdp->sd_log_num_revoke) 334b3b94faaSDavid Teigland return; 335b3b94faaSDavid Teigland 33616615be1SSteven Whitehouse bh = gfs2_get_log_desc(sdp, GFS2_LOG_DESC_REVOKE); 33716615be1SSteven Whitehouse ld = bh_log_desc(bh); 338568f4c96SSteven Whitehouse ld->ld_length = cpu_to_be32(gfs2_struct2blk(sdp, sdp->sd_log_num_revoke, 339cd915493SSteven Whitehouse sizeof(u64))); 340b3b94faaSDavid Teigland ld->ld_data1 = cpu_to_be32(sdp->sd_log_num_revoke); 341b3b94faaSDavid Teigland offset = sizeof(struct gfs2_log_descriptor); 342b3b94faaSDavid Teigland 343b3b94faaSDavid Teigland while (!list_empty(head)) { 34482e86087SSteven Whitehouse bd = list_entry(head->next, struct gfs2_bufdata, bd_le.le_list); 34582e86087SSteven Whitehouse list_del_init(&bd->bd_le.le_list); 346b3b94faaSDavid Teigland sdp->sd_log_num_revoke--; 347b3b94faaSDavid Teigland 348cd915493SSteven Whitehouse if (offset + sizeof(u64) > sdp->sd_sb.sb_bsize) { 349c969f58cSSteven Whitehouse submit_bh(WRITE_SYNC_PLUG, bh); 350b3b94faaSDavid Teigland 351b3b94faaSDavid Teigland bh = gfs2_log_get_buf(sdp); 352b3b94faaSDavid Teigland mh = (struct gfs2_meta_header *)bh->b_data; 353b3b94faaSDavid Teigland mh->mh_magic = cpu_to_be32(GFS2_MAGIC); 354e3167dedSSteven Whitehouse mh->mh_type = cpu_to_be32(GFS2_METATYPE_LB); 355e3167dedSSteven Whitehouse mh->mh_format = cpu_to_be32(GFS2_FORMAT_LB); 356b3b94faaSDavid Teigland offset = sizeof(struct gfs2_meta_header); 357b3b94faaSDavid Teigland } 358b3b94faaSDavid Teigland 35982e86087SSteven Whitehouse *(__be64 *)(bh->b_data + offset) = cpu_to_be64(bd->bd_blkno); 3600820ab51SSteven Whitehouse kmem_cache_free(gfs2_bufdata_cachep, bd); 361b3b94faaSDavid Teigland 362cd915493SSteven Whitehouse offset += sizeof(u64); 363b3b94faaSDavid Teigland } 364b3b94faaSDavid Teigland gfs2_assert_withdraw(sdp, !sdp->sd_log_num_revoke); 365b3b94faaSDavid Teigland 366c969f58cSSteven Whitehouse submit_bh(WRITE_SYNC_PLUG, bh); 367b3b94faaSDavid Teigland } 368b3b94faaSDavid Teigland 369b3b94faaSDavid Teigland static void revoke_lo_before_scan(struct gfs2_jdesc *jd, 37055167622SAl Viro struct gfs2_log_header_host *head, int pass) 371b3b94faaSDavid Teigland { 372feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 373b3b94faaSDavid Teigland 374b3b94faaSDavid Teigland if (pass != 0) 375b3b94faaSDavid Teigland return; 376b3b94faaSDavid Teigland 377b3b94faaSDavid Teigland sdp->sd_found_revokes = 0; 378b3b94faaSDavid Teigland sdp->sd_replay_tail = head->lh_tail; 379b3b94faaSDavid Teigland } 380b3b94faaSDavid Teigland 381b3b94faaSDavid Teigland static int revoke_lo_scan_elements(struct gfs2_jdesc *jd, unsigned int start, 382b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld, __be64 *ptr, 383b3b94faaSDavid Teigland int pass) 384b3b94faaSDavid Teigland { 385feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 386b3b94faaSDavid Teigland unsigned int blks = be32_to_cpu(ld->ld_length); 387b3b94faaSDavid Teigland unsigned int revokes = be32_to_cpu(ld->ld_data1); 388b3b94faaSDavid Teigland struct buffer_head *bh; 389b3b94faaSDavid Teigland unsigned int offset; 390cd915493SSteven Whitehouse u64 blkno; 391b3b94faaSDavid Teigland int first = 1; 392b3b94faaSDavid Teigland int error; 393b3b94faaSDavid Teigland 394b3b94faaSDavid Teigland if (pass != 0 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_REVOKE) 395b3b94faaSDavid Teigland return 0; 396b3b94faaSDavid Teigland 397b3b94faaSDavid Teigland offset = sizeof(struct gfs2_log_descriptor); 398b3b94faaSDavid Teigland 399b3b94faaSDavid Teigland for (; blks; gfs2_replay_incr_blk(sdp, &start), blks--) { 400b3b94faaSDavid Teigland error = gfs2_replay_read_block(jd, start, &bh); 401b3b94faaSDavid Teigland if (error) 402b3b94faaSDavid Teigland return error; 403b3b94faaSDavid Teigland 404b3b94faaSDavid Teigland if (!first) 405b3b94faaSDavid Teigland gfs2_metatype_check(sdp, bh, GFS2_METATYPE_LB); 406b3b94faaSDavid Teigland 407cd915493SSteven Whitehouse while (offset + sizeof(u64) <= sdp->sd_sb.sb_bsize) { 408b3b94faaSDavid Teigland blkno = be64_to_cpu(*(__be64 *)(bh->b_data + offset)); 409b3b94faaSDavid Teigland 410b3b94faaSDavid Teigland error = gfs2_revoke_add(sdp, blkno, start); 4113ad62e87SBob Peterson if (error < 0) { 4123ad62e87SBob Peterson brelse(bh); 413b3b94faaSDavid Teigland return error; 4143ad62e87SBob Peterson } 415b3b94faaSDavid Teigland else if (error) 416b3b94faaSDavid Teigland sdp->sd_found_revokes++; 417b3b94faaSDavid Teigland 418b3b94faaSDavid Teigland if (!--revokes) 419b3b94faaSDavid Teigland break; 420cd915493SSteven Whitehouse offset += sizeof(u64); 421b3b94faaSDavid Teigland } 422b3b94faaSDavid Teigland 423b3b94faaSDavid Teigland brelse(bh); 424b3b94faaSDavid Teigland offset = sizeof(struct gfs2_meta_header); 425b3b94faaSDavid Teigland first = 0; 426b3b94faaSDavid Teigland } 427b3b94faaSDavid Teigland 428b3b94faaSDavid Teigland return 0; 429b3b94faaSDavid Teigland } 430b3b94faaSDavid Teigland 431b3b94faaSDavid Teigland static void revoke_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass) 432b3b94faaSDavid Teigland { 433feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 434b3b94faaSDavid Teigland 435b3b94faaSDavid Teigland if (error) { 436b3b94faaSDavid Teigland gfs2_revoke_clean(sdp); 437b3b94faaSDavid Teigland return; 438b3b94faaSDavid Teigland } 439b3b94faaSDavid Teigland if (pass != 1) 440b3b94faaSDavid Teigland return; 441b3b94faaSDavid Teigland 442b3b94faaSDavid Teigland fs_info(sdp, "jid=%u: Found %u revoke tags\n", 443b3b94faaSDavid Teigland jd->jd_jid, sdp->sd_found_revokes); 444b3b94faaSDavid Teigland 445b3b94faaSDavid Teigland gfs2_revoke_clean(sdp); 446b3b94faaSDavid Teigland } 447b3b94faaSDavid Teigland 448b3b94faaSDavid Teigland static void rg_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 449b3b94faaSDavid Teigland { 450b3b94faaSDavid Teigland struct gfs2_rgrpd *rgd; 4515c676f6dSSteven Whitehouse struct gfs2_trans *tr = current->journal_info; 452b3b94faaSDavid Teigland 4535c676f6dSSteven Whitehouse tr->tr_touched = 1; 454b3b94faaSDavid Teigland 455b3b94faaSDavid Teigland rgd = container_of(le, struct gfs2_rgrpd, rd_le); 456b3b94faaSDavid Teigland 457b3b94faaSDavid Teigland gfs2_log_lock(sdp); 45868835625SBenjamin Marzinski if (!list_empty(&le->le_list)){ 45968835625SBenjamin Marzinski gfs2_log_unlock(sdp); 46068835625SBenjamin Marzinski return; 46168835625SBenjamin Marzinski } 46268835625SBenjamin Marzinski gfs2_rgrp_bh_hold(rgd); 463b3b94faaSDavid Teigland sdp->sd_log_num_rg++; 464b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_rg); 465b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 466b3b94faaSDavid Teigland } 467b3b94faaSDavid Teigland 468b3b94faaSDavid Teigland static void rg_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) 469b3b94faaSDavid Teigland { 470b3b94faaSDavid Teigland struct list_head *head = &sdp->sd_log_le_rg; 471b3b94faaSDavid Teigland struct gfs2_rgrpd *rgd; 472b3b94faaSDavid Teigland 473b3b94faaSDavid Teigland while (!list_empty(head)) { 474b3b94faaSDavid Teigland rgd = list_entry(head->next, struct gfs2_rgrpd, rd_le.le_list); 475b3b94faaSDavid Teigland list_del_init(&rgd->rd_le.le_list); 476b3b94faaSDavid Teigland sdp->sd_log_num_rg--; 477b3b94faaSDavid Teigland 478b3b94faaSDavid Teigland gfs2_rgrp_repolish_clones(rgd); 479b3b94faaSDavid Teigland gfs2_rgrp_bh_put(rgd); 480b3b94faaSDavid Teigland } 481b3b94faaSDavid Teigland gfs2_assert_warn(sdp, !sdp->sd_log_num_rg); 482b3b94faaSDavid Teigland } 483b3b94faaSDavid Teigland 48418ec7d5cSSteven Whitehouse /** 48518ec7d5cSSteven Whitehouse * databuf_lo_add - Add a databuf to the transaction. 48618ec7d5cSSteven Whitehouse * 48718ec7d5cSSteven Whitehouse * This is used in two distinct cases: 48818ec7d5cSSteven Whitehouse * i) In ordered write mode 48918ec7d5cSSteven Whitehouse * We put the data buffer on a list so that we can ensure that its 49018ec7d5cSSteven Whitehouse * synced to disk at the right time 49118ec7d5cSSteven Whitehouse * ii) In journaled data mode 49218ec7d5cSSteven Whitehouse * We need to journal the data block in the same way as metadata in 49318ec7d5cSSteven Whitehouse * the functions above. The difference is that here we have a tag 49418ec7d5cSSteven Whitehouse * which is two __be64's being the block number (as per meta data) 49518ec7d5cSSteven Whitehouse * and a flag which says whether the data block needs escaping or 49618ec7d5cSSteven Whitehouse * not. This means we need a new log entry for each 251 or so data 49718ec7d5cSSteven Whitehouse * blocks, which isn't an enormous overhead but twice as much as 49818ec7d5cSSteven Whitehouse * for normal metadata blocks. 49918ec7d5cSSteven Whitehouse */ 500b3b94faaSDavid Teigland static void databuf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 501b3b94faaSDavid Teigland { 50218ec7d5cSSteven Whitehouse struct gfs2_bufdata *bd = container_of(le, struct gfs2_bufdata, bd_le); 5035c676f6dSSteven Whitehouse struct gfs2_trans *tr = current->journal_info; 50418ec7d5cSSteven Whitehouse struct address_space *mapping = bd->bd_bh->b_page->mapping; 505feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(mapping->host); 506b3b94faaSDavid Teigland 5079b9107a5SSteven Whitehouse lock_buffer(bd->bd_bh); 5088bd95727SSteven Whitehouse gfs2_log_lock(sdp); 5099ff8ec32SSteven Whitehouse if (tr) { 5109b9107a5SSteven Whitehouse if (!list_empty(&bd->bd_list_tr)) 5119b9107a5SSteven Whitehouse goto out; 51218ec7d5cSSteven Whitehouse tr->tr_touched = 1; 513773ed1a0SRobert Peterson if (gfs2_is_jdata(ip)) { 51418ec7d5cSSteven Whitehouse tr->tr_num_buf++; 51518ec7d5cSSteven Whitehouse list_add(&bd->bd_list_tr, &tr->tr_list_buf); 516773ed1a0SRobert Peterson } 5179ff8ec32SSteven Whitehouse } 518ddf4b426SBenjamin Marzinski if (!list_empty(&le->le_list)) 5199b9107a5SSteven Whitehouse goto out; 5202332c443SRobert Peterson 5212bcd610dSSteven Whitehouse set_bit(GLF_LFLUSH, &bd->bd_gl->gl_flags); 5222bcd610dSSteven Whitehouse set_bit(GLF_DIRTY, &bd->bd_gl->gl_flags); 5232332c443SRobert Peterson if (gfs2_is_jdata(ip)) { 5242332c443SRobert Peterson gfs2_pin(sdp, bd->bd_bh); 5252332c443SRobert Peterson tr->tr_num_databuf_new++; 526bdcb8856SBob Peterson sdp->sd_log_num_databuf++; 5272332c443SRobert Peterson list_add(&le->le_list, &sdp->sd_log_le_databuf); 528d7b616e2SSteven Whitehouse } else { 529d7b616e2SSteven Whitehouse list_add(&le->le_list, &sdp->sd_log_le_ordered); 530d7b616e2SSteven Whitehouse } 5319b9107a5SSteven Whitehouse out: 532b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 5339b9107a5SSteven Whitehouse unlock_buffer(bd->bd_bh); 534b3b94faaSDavid Teigland } 535b3b94faaSDavid Teigland 53616615be1SSteven Whitehouse static void gfs2_check_magic(struct buffer_head *bh) 53718ec7d5cSSteven Whitehouse { 53818ec7d5cSSteven Whitehouse void *kaddr; 53918ec7d5cSSteven Whitehouse __be32 *ptr; 54018ec7d5cSSteven Whitehouse 54116615be1SSteven Whitehouse clear_buffer_escaped(bh); 54216615be1SSteven Whitehouse kaddr = kmap_atomic(bh->b_page, KM_USER0); 54318ec7d5cSSteven Whitehouse ptr = kaddr + bh_offset(bh); 54418ec7d5cSSteven Whitehouse if (*ptr == cpu_to_be32(GFS2_MAGIC)) 54516615be1SSteven Whitehouse set_buffer_escaped(bh); 546c312c4fdSRussell Cattelan kunmap_atomic(kaddr, KM_USER0); 54716615be1SSteven Whitehouse } 54818ec7d5cSSteven Whitehouse 54916615be1SSteven Whitehouse static void gfs2_write_blocks(struct gfs2_sbd *sdp, struct buffer_head *bh, 55016615be1SSteven Whitehouse struct list_head *list, struct list_head *done, 55116615be1SSteven Whitehouse unsigned int n) 55216615be1SSteven Whitehouse { 55316615be1SSteven Whitehouse struct buffer_head *bh1; 55416615be1SSteven Whitehouse struct gfs2_log_descriptor *ld; 55516615be1SSteven Whitehouse struct gfs2_bufdata *bd; 55616615be1SSteven Whitehouse __be64 *ptr; 55716615be1SSteven Whitehouse 55816615be1SSteven Whitehouse if (!bh) 55916615be1SSteven Whitehouse return; 56016615be1SSteven Whitehouse 56116615be1SSteven Whitehouse ld = bh_log_desc(bh); 56216615be1SSteven Whitehouse ld->ld_length = cpu_to_be32(n + 1); 56316615be1SSteven Whitehouse ld->ld_data1 = cpu_to_be32(n); 56416615be1SSteven Whitehouse 56516615be1SSteven Whitehouse ptr = bh_log_ptr(bh); 56616615be1SSteven Whitehouse 56716615be1SSteven Whitehouse get_bh(bh); 568c969f58cSSteven Whitehouse submit_bh(WRITE_SYNC_PLUG, bh); 56916615be1SSteven Whitehouse gfs2_log_lock(sdp); 57016615be1SSteven Whitehouse while(!list_empty(list)) { 57116615be1SSteven Whitehouse bd = list_entry(list->next, struct gfs2_bufdata, bd_le.le_list); 57216615be1SSteven Whitehouse list_move_tail(&bd->bd_le.le_list, done); 57316615be1SSteven Whitehouse get_bh(bd->bd_bh); 57416615be1SSteven Whitehouse while (be64_to_cpu(*ptr) != bd->bd_bh->b_blocknr) { 57516615be1SSteven Whitehouse gfs2_log_incr_head(sdp); 57616615be1SSteven Whitehouse ptr += 2; 57716615be1SSteven Whitehouse } 57816615be1SSteven Whitehouse gfs2_log_unlock(sdp); 57916615be1SSteven Whitehouse lock_buffer(bd->bd_bh); 58016615be1SSteven Whitehouse if (buffer_escaped(bd->bd_bh)) { 58116615be1SSteven Whitehouse void *kaddr; 58216615be1SSteven Whitehouse bh1 = gfs2_log_get_buf(sdp); 58316615be1SSteven Whitehouse kaddr = kmap_atomic(bd->bd_bh->b_page, KM_USER0); 58416615be1SSteven Whitehouse memcpy(bh1->b_data, kaddr + bh_offset(bd->bd_bh), 58516615be1SSteven Whitehouse bh1->b_size); 58616615be1SSteven Whitehouse kunmap_atomic(kaddr, KM_USER0); 58716615be1SSteven Whitehouse *(__be32 *)bh1->b_data = 0; 58816615be1SSteven Whitehouse clear_buffer_escaped(bd->bd_bh); 58916615be1SSteven Whitehouse unlock_buffer(bd->bd_bh); 59016615be1SSteven Whitehouse brelse(bd->bd_bh); 59116615be1SSteven Whitehouse } else { 59216615be1SSteven Whitehouse bh1 = gfs2_log_fake_buf(sdp, bd->bd_bh); 59316615be1SSteven Whitehouse } 594c969f58cSSteven Whitehouse submit_bh(WRITE_SYNC_PLUG, bh1); 59516615be1SSteven Whitehouse gfs2_log_lock(sdp); 59616615be1SSteven Whitehouse ptr += 2; 59716615be1SSteven Whitehouse } 59816615be1SSteven Whitehouse gfs2_log_unlock(sdp); 59916615be1SSteven Whitehouse brelse(bh); 60018ec7d5cSSteven Whitehouse } 60118ec7d5cSSteven Whitehouse 60218ec7d5cSSteven Whitehouse /** 60318ec7d5cSSteven Whitehouse * databuf_lo_before_commit - Scan the data buffers, writing as we go 60418ec7d5cSSteven Whitehouse * 60518ec7d5cSSteven Whitehouse */ 606d7b616e2SSteven Whitehouse 607b3b94faaSDavid Teigland static void databuf_lo_before_commit(struct gfs2_sbd *sdp) 608b3b94faaSDavid Teigland { 60916615be1SSteven Whitehouse struct gfs2_bufdata *bd = NULL; 61016615be1SSteven Whitehouse struct buffer_head *bh = NULL; 61116615be1SSteven Whitehouse unsigned int n = 0; 61216615be1SSteven Whitehouse __be64 *ptr = NULL, *end = NULL; 61316615be1SSteven Whitehouse LIST_HEAD(processed); 61416615be1SSteven Whitehouse LIST_HEAD(in_progress); 615b3b94faaSDavid Teigland 616f55ab26aSSteven Whitehouse gfs2_log_lock(sdp); 61716615be1SSteven Whitehouse while (!list_empty(&sdp->sd_log_le_databuf)) { 61816615be1SSteven Whitehouse if (ptr == end) { 619f55ab26aSSteven Whitehouse gfs2_log_unlock(sdp); 62016615be1SSteven Whitehouse gfs2_write_blocks(sdp, bh, &in_progress, &processed, n); 621d7b616e2SSteven Whitehouse n = 0; 62216615be1SSteven Whitehouse bh = gfs2_get_log_desc(sdp, GFS2_LOG_DESC_JDATA); 62316615be1SSteven Whitehouse ptr = bh_log_ptr(bh); 62416615be1SSteven Whitehouse end = bh_ptr_end(bh) - 1; 625f55ab26aSSteven Whitehouse gfs2_log_lock(sdp); 62618ec7d5cSSteven Whitehouse continue; 62716615be1SSteven Whitehouse } 62816615be1SSteven Whitehouse bd = list_entry(sdp->sd_log_le_databuf.next, struct gfs2_bufdata, bd_le.le_list); 62916615be1SSteven Whitehouse list_move_tail(&bd->bd_le.le_list, &in_progress); 63016615be1SSteven Whitehouse gfs2_check_magic(bd->bd_bh); 63116615be1SSteven Whitehouse *ptr++ = cpu_to_be64(bd->bd_bh->b_blocknr); 63216615be1SSteven Whitehouse *ptr++ = cpu_to_be64(buffer_escaped(bh) ? 1 : 0); 63316615be1SSteven Whitehouse n++; 63416615be1SSteven Whitehouse } 635f55ab26aSSteven Whitehouse gfs2_log_unlock(sdp); 63616615be1SSteven Whitehouse gfs2_write_blocks(sdp, bh, &in_progress, &processed, n); 637f55ab26aSSteven Whitehouse gfs2_log_lock(sdp); 63816615be1SSteven Whitehouse list_splice(&processed, &sdp->sd_log_le_databuf); 639f55ab26aSSteven Whitehouse gfs2_log_unlock(sdp); 640b3b94faaSDavid Teigland } 641b3b94faaSDavid Teigland 64218ec7d5cSSteven Whitehouse static int databuf_lo_scan_elements(struct gfs2_jdesc *jd, unsigned int start, 64318ec7d5cSSteven Whitehouse struct gfs2_log_descriptor *ld, 64418ec7d5cSSteven Whitehouse __be64 *ptr, int pass) 64518ec7d5cSSteven Whitehouse { 646feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(jd->jd_inode); 647feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 6485c676f6dSSteven Whitehouse struct gfs2_glock *gl = ip->i_gl; 64918ec7d5cSSteven Whitehouse unsigned int blks = be32_to_cpu(ld->ld_data1); 65018ec7d5cSSteven Whitehouse struct buffer_head *bh_log, *bh_ip; 651cd915493SSteven Whitehouse u64 blkno; 652cd915493SSteven Whitehouse u64 esc; 65318ec7d5cSSteven Whitehouse int error = 0; 65418ec7d5cSSteven Whitehouse 65518ec7d5cSSteven Whitehouse if (pass != 1 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_JDATA) 65618ec7d5cSSteven Whitehouse return 0; 65718ec7d5cSSteven Whitehouse 65818ec7d5cSSteven Whitehouse gfs2_replay_incr_blk(sdp, &start); 65918ec7d5cSSteven Whitehouse for (; blks; gfs2_replay_incr_blk(sdp, &start), blks--) { 66018ec7d5cSSteven Whitehouse blkno = be64_to_cpu(*ptr++); 66118ec7d5cSSteven Whitehouse esc = be64_to_cpu(*ptr++); 66218ec7d5cSSteven Whitehouse 66318ec7d5cSSteven Whitehouse sdp->sd_found_blocks++; 66418ec7d5cSSteven Whitehouse 66518ec7d5cSSteven Whitehouse if (gfs2_revoke_check(sdp, blkno, start)) 66618ec7d5cSSteven Whitehouse continue; 66718ec7d5cSSteven Whitehouse 66818ec7d5cSSteven Whitehouse error = gfs2_replay_read_block(jd, start, &bh_log); 66918ec7d5cSSteven Whitehouse if (error) 67018ec7d5cSSteven Whitehouse return error; 67118ec7d5cSSteven Whitehouse 67218ec7d5cSSteven Whitehouse bh_ip = gfs2_meta_new(gl, blkno); 67318ec7d5cSSteven Whitehouse memcpy(bh_ip->b_data, bh_log->b_data, bh_log->b_size); 67418ec7d5cSSteven Whitehouse 67518ec7d5cSSteven Whitehouse /* Unescape */ 67618ec7d5cSSteven Whitehouse if (esc) { 67718ec7d5cSSteven Whitehouse __be32 *eptr = (__be32 *)bh_ip->b_data; 67818ec7d5cSSteven Whitehouse *eptr = cpu_to_be32(GFS2_MAGIC); 67918ec7d5cSSteven Whitehouse } 68018ec7d5cSSteven Whitehouse mark_buffer_dirty(bh_ip); 68118ec7d5cSSteven Whitehouse 68218ec7d5cSSteven Whitehouse brelse(bh_log); 68318ec7d5cSSteven Whitehouse brelse(bh_ip); 68418ec7d5cSSteven Whitehouse if (error) 68518ec7d5cSSteven Whitehouse break; 68618ec7d5cSSteven Whitehouse 68718ec7d5cSSteven Whitehouse sdp->sd_replayed_blocks++; 68818ec7d5cSSteven Whitehouse } 68918ec7d5cSSteven Whitehouse 69018ec7d5cSSteven Whitehouse return error; 69118ec7d5cSSteven Whitehouse } 69218ec7d5cSSteven Whitehouse 69318ec7d5cSSteven Whitehouse /* FIXME: sort out accounting for log blocks etc. */ 69418ec7d5cSSteven Whitehouse 69518ec7d5cSSteven Whitehouse static void databuf_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass) 69618ec7d5cSSteven Whitehouse { 697feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(jd->jd_inode); 698feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 69918ec7d5cSSteven Whitehouse 70018ec7d5cSSteven Whitehouse if (error) { 7017276b3b0SSteven Whitehouse gfs2_meta_sync(ip->i_gl); 70218ec7d5cSSteven Whitehouse return; 70318ec7d5cSSteven Whitehouse } 70418ec7d5cSSteven Whitehouse if (pass != 1) 70518ec7d5cSSteven Whitehouse return; 70618ec7d5cSSteven Whitehouse 70718ec7d5cSSteven Whitehouse /* data sync? */ 7087276b3b0SSteven Whitehouse gfs2_meta_sync(ip->i_gl); 70918ec7d5cSSteven Whitehouse 71018ec7d5cSSteven Whitehouse fs_info(sdp, "jid=%u: Replayed %u of %u data blocks\n", 71118ec7d5cSSteven Whitehouse jd->jd_jid, sdp->sd_replayed_blocks, sdp->sd_found_blocks); 71218ec7d5cSSteven Whitehouse } 71318ec7d5cSSteven Whitehouse 71418ec7d5cSSteven Whitehouse static void databuf_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) 71518ec7d5cSSteven Whitehouse { 71618ec7d5cSSteven Whitehouse struct list_head *head = &sdp->sd_log_le_databuf; 71718ec7d5cSSteven Whitehouse struct gfs2_bufdata *bd; 71818ec7d5cSSteven Whitehouse 71918ec7d5cSSteven Whitehouse while (!list_empty(head)) { 72018ec7d5cSSteven Whitehouse bd = list_entry(head->next, struct gfs2_bufdata, bd_le.le_list); 721b8e1aabfSSteven Whitehouse list_del_init(&bd->bd_le.le_list); 72218ec7d5cSSteven Whitehouse sdp->sd_log_num_databuf--; 72318ec7d5cSSteven Whitehouse gfs2_unpin(sdp, bd->bd_bh, ai); 72418ec7d5cSSteven Whitehouse } 72518ec7d5cSSteven Whitehouse gfs2_assert_warn(sdp, !sdp->sd_log_num_databuf); 72618ec7d5cSSteven Whitehouse } 72718ec7d5cSSteven Whitehouse 72818ec7d5cSSteven Whitehouse 729b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_buf_lops = { 730b3b94faaSDavid Teigland .lo_add = buf_lo_add, 731b3b94faaSDavid Teigland .lo_before_commit = buf_lo_before_commit, 732b3b94faaSDavid Teigland .lo_after_commit = buf_lo_after_commit, 733b3b94faaSDavid Teigland .lo_before_scan = buf_lo_before_scan, 734b3b94faaSDavid Teigland .lo_scan_elements = buf_lo_scan_elements, 735b3b94faaSDavid Teigland .lo_after_scan = buf_lo_after_scan, 736ea67eedbSSteven Whitehouse .lo_name = "buf", 737b3b94faaSDavid Teigland }; 738b3b94faaSDavid Teigland 739b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_revoke_lops = { 740b3b94faaSDavid Teigland .lo_add = revoke_lo_add, 741b3b94faaSDavid Teigland .lo_before_commit = revoke_lo_before_commit, 742b3b94faaSDavid Teigland .lo_before_scan = revoke_lo_before_scan, 743b3b94faaSDavid Teigland .lo_scan_elements = revoke_lo_scan_elements, 744b3b94faaSDavid Teigland .lo_after_scan = revoke_lo_after_scan, 745ea67eedbSSteven Whitehouse .lo_name = "revoke", 746b3b94faaSDavid Teigland }; 747b3b94faaSDavid Teigland 748b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_rg_lops = { 749b3b94faaSDavid Teigland .lo_add = rg_lo_add, 750b3b94faaSDavid Teigland .lo_after_commit = rg_lo_after_commit, 751ea67eedbSSteven Whitehouse .lo_name = "rg", 752b3b94faaSDavid Teigland }; 753b3b94faaSDavid Teigland 754b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_databuf_lops = { 755b3b94faaSDavid Teigland .lo_add = databuf_lo_add, 756b3b94faaSDavid Teigland .lo_before_commit = databuf_lo_before_commit, 75718ec7d5cSSteven Whitehouse .lo_after_commit = databuf_lo_after_commit, 75818ec7d5cSSteven Whitehouse .lo_scan_elements = databuf_lo_scan_elements, 75918ec7d5cSSteven Whitehouse .lo_after_scan = databuf_lo_after_scan, 760ea67eedbSSteven Whitehouse .lo_name = "databuf", 761b3b94faaSDavid Teigland }; 762b3b94faaSDavid Teigland 763b09e593dSSteven Whitehouse const struct gfs2_log_operations *gfs2_log_ops[] = { 764b3b94faaSDavid Teigland &gfs2_databuf_lops, 76516615be1SSteven Whitehouse &gfs2_buf_lops, 76616615be1SSteven Whitehouse &gfs2_rg_lops, 76716615be1SSteven Whitehouse &gfs2_revoke_lops, 768ea67eedbSSteven Whitehouse NULL, 769b3b94faaSDavid Teigland }; 770b3b94faaSDavid Teigland 771