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); 575e687eacSBenjamin Marzinski atomic_inc(&sdp->sd_log_pinned); 5863997775SSteven Whitehouse trace_gfs2_pin(bd, 1); 599b9107a5SSteven Whitehouse } 609b9107a5SSteven Whitehouse 619b9107a5SSteven Whitehouse /** 629b9107a5SSteven Whitehouse * gfs2_unpin - Unpin a buffer 639b9107a5SSteven Whitehouse * @sdp: the filesystem the buffer belongs to 649b9107a5SSteven Whitehouse * @bh: The buffer to unpin 659b9107a5SSteven Whitehouse * @ai: 669b9107a5SSteven Whitehouse * 679b9107a5SSteven Whitehouse */ 689b9107a5SSteven Whitehouse 699b9107a5SSteven Whitehouse static void gfs2_unpin(struct gfs2_sbd *sdp, struct buffer_head *bh, 709b9107a5SSteven Whitehouse struct gfs2_ail *ai) 719b9107a5SSteven Whitehouse { 729b9107a5SSteven Whitehouse struct gfs2_bufdata *bd = bh->b_private; 739b9107a5SSteven Whitehouse 749b9107a5SSteven Whitehouse gfs2_assert_withdraw(sdp, buffer_uptodate(bh)); 759b9107a5SSteven Whitehouse 769b9107a5SSteven Whitehouse if (!buffer_pinned(bh)) 779b9107a5SSteven Whitehouse gfs2_assert_withdraw(sdp, 0); 789b9107a5SSteven Whitehouse 799b9107a5SSteven Whitehouse lock_buffer(bh); 809b9107a5SSteven Whitehouse mark_buffer_dirty(bh); 819b9107a5SSteven Whitehouse clear_buffer_pinned(bh); 829b9107a5SSteven Whitehouse 839b9107a5SSteven Whitehouse gfs2_log_lock(sdp); 849b9107a5SSteven Whitehouse if (bd->bd_ail) { 859b9107a5SSteven Whitehouse list_del(&bd->bd_ail_st_list); 869b9107a5SSteven Whitehouse brelse(bh); 879b9107a5SSteven Whitehouse } else { 889b9107a5SSteven Whitehouse struct gfs2_glock *gl = bd->bd_gl; 899b9107a5SSteven Whitehouse list_add(&bd->bd_ail_gl_list, &gl->gl_ail_list); 909b9107a5SSteven Whitehouse atomic_inc(&gl->gl_ail_count); 919b9107a5SSteven Whitehouse } 929b9107a5SSteven Whitehouse bd->bd_ail = ai; 939b9107a5SSteven Whitehouse list_add(&bd->bd_ail_st_list, &ai->ai_ail1_list); 942bcd610dSSteven Whitehouse clear_bit(GLF_LFLUSH, &bd->bd_gl->gl_flags); 9563997775SSteven Whitehouse trace_gfs2_pin(bd, 0); 969b9107a5SSteven Whitehouse gfs2_log_unlock(sdp); 979b9107a5SSteven Whitehouse unlock_buffer(bh); 985e687eacSBenjamin Marzinski atomic_dec(&sdp->sd_log_pinned); 999b9107a5SSteven Whitehouse } 1009b9107a5SSteven Whitehouse 10116615be1SSteven Whitehouse 10216615be1SSteven Whitehouse static inline struct gfs2_log_descriptor *bh_log_desc(struct buffer_head *bh) 10316615be1SSteven Whitehouse { 10416615be1SSteven Whitehouse return (struct gfs2_log_descriptor *)bh->b_data; 10516615be1SSteven Whitehouse } 10616615be1SSteven Whitehouse 10716615be1SSteven Whitehouse static inline __be64 *bh_log_ptr(struct buffer_head *bh) 10816615be1SSteven Whitehouse { 10916615be1SSteven Whitehouse struct gfs2_log_descriptor *ld = bh_log_desc(bh); 11016615be1SSteven Whitehouse return (__force __be64 *)(ld + 1); 11116615be1SSteven Whitehouse } 11216615be1SSteven Whitehouse 11316615be1SSteven Whitehouse static inline __be64 *bh_ptr_end(struct buffer_head *bh) 11416615be1SSteven Whitehouse { 11516615be1SSteven Whitehouse return (__force __be64 *)(bh->b_data + bh->b_size); 11616615be1SSteven Whitehouse } 11716615be1SSteven Whitehouse 11816615be1SSteven Whitehouse 11916615be1SSteven Whitehouse static struct buffer_head *gfs2_get_log_desc(struct gfs2_sbd *sdp, u32 ld_type) 12016615be1SSteven Whitehouse { 12116615be1SSteven Whitehouse struct buffer_head *bh = gfs2_log_get_buf(sdp); 12216615be1SSteven Whitehouse struct gfs2_log_descriptor *ld = bh_log_desc(bh); 12316615be1SSteven Whitehouse ld->ld_header.mh_magic = cpu_to_be32(GFS2_MAGIC); 12416615be1SSteven Whitehouse ld->ld_header.mh_type = cpu_to_be32(GFS2_METATYPE_LD); 12516615be1SSteven Whitehouse ld->ld_header.mh_format = cpu_to_be32(GFS2_FORMAT_LD); 12616615be1SSteven Whitehouse ld->ld_type = cpu_to_be32(ld_type); 12716615be1SSteven Whitehouse ld->ld_length = 0; 12816615be1SSteven Whitehouse ld->ld_data1 = 0; 12916615be1SSteven Whitehouse ld->ld_data2 = 0; 13016615be1SSteven Whitehouse memset(ld->ld_reserved, 0, sizeof(ld->ld_reserved)); 13116615be1SSteven Whitehouse return bh; 13216615be1SSteven Whitehouse } 13316615be1SSteven Whitehouse 134b3b94faaSDavid Teigland static void buf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 135b3b94faaSDavid Teigland { 136b3b94faaSDavid Teigland struct gfs2_bufdata *bd = container_of(le, struct gfs2_bufdata, bd_le); 1370ab7d13fSSteven Whitehouse struct gfs2_meta_header *mh; 138b3b94faaSDavid Teigland struct gfs2_trans *tr; 139b3b94faaSDavid Teigland 1409b9107a5SSteven Whitehouse lock_buffer(bd->bd_bh); 1418bd95727SSteven Whitehouse gfs2_log_lock(sdp); 1429b9107a5SSteven Whitehouse if (!list_empty(&bd->bd_list_tr)) 1439b9107a5SSteven Whitehouse goto out; 1445c676f6dSSteven Whitehouse tr = current->journal_info; 145b3b94faaSDavid Teigland tr->tr_touched = 1; 146b3b94faaSDavid Teigland tr->tr_num_buf++; 147b3b94faaSDavid Teigland list_add(&bd->bd_list_tr, &tr->tr_list_buf); 148b3b94faaSDavid Teigland if (!list_empty(&le->le_list)) 1499b9107a5SSteven Whitehouse goto out; 1502bcd610dSSteven Whitehouse set_bit(GLF_LFLUSH, &bd->bd_gl->gl_flags); 1512bcd610dSSteven Whitehouse set_bit(GLF_DIRTY, &bd->bd_gl->gl_flags); 152b3b94faaSDavid Teigland gfs2_meta_check(sdp, bd->bd_bh); 153a98ab220SSteven Whitehouse gfs2_pin(sdp, bd->bd_bh); 1540ab7d13fSSteven Whitehouse mh = (struct gfs2_meta_header *)bd->bd_bh->b_data; 1550ab7d13fSSteven Whitehouse mh->__pad0 = cpu_to_be64(0); 1560ab7d13fSSteven Whitehouse mh->mh_jid = cpu_to_be32(sdp->sd_jdesc->jd_jid); 157b3b94faaSDavid Teigland sdp->sd_log_num_buf++; 158b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_buf); 159b3b94faaSDavid Teigland tr->tr_num_buf_new++; 1609b9107a5SSteven Whitehouse out: 1619b9107a5SSteven Whitehouse gfs2_log_unlock(sdp); 1629b9107a5SSteven Whitehouse unlock_buffer(bd->bd_bh); 163b3b94faaSDavid Teigland } 164b3b94faaSDavid Teigland 165b3b94faaSDavid Teigland static void buf_lo_before_commit(struct gfs2_sbd *sdp) 166b3b94faaSDavid Teigland { 167b3b94faaSDavid Teigland struct buffer_head *bh; 168b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld; 169b3b94faaSDavid Teigland struct gfs2_bufdata *bd1 = NULL, *bd2; 170905d2aefSBob Peterson unsigned int total; 171b3b94faaSDavid Teigland unsigned int limit; 172b3b94faaSDavid Teigland unsigned int num; 173b3b94faaSDavid Teigland unsigned n; 174b3b94faaSDavid Teigland __be64 *ptr; 175b3b94faaSDavid Teigland 1762332c443SRobert Peterson limit = buf_limit(sdp); 177b3b94faaSDavid Teigland /* for 4k blocks, limit = 503 */ 178b3b94faaSDavid Teigland 179905d2aefSBob Peterson gfs2_log_lock(sdp); 180905d2aefSBob Peterson total = sdp->sd_log_num_buf; 181b3b94faaSDavid Teigland bd1 = bd2 = list_prepare_entry(bd1, &sdp->sd_log_le_buf, bd_le.le_list); 182b3b94faaSDavid Teigland while(total) { 183b3b94faaSDavid Teigland num = total; 184b3b94faaSDavid Teigland if (total > limit) 185b3b94faaSDavid Teigland num = limit; 186905d2aefSBob Peterson gfs2_log_unlock(sdp); 18716615be1SSteven Whitehouse bh = gfs2_get_log_desc(sdp, GFS2_LOG_DESC_METADATA); 188905d2aefSBob Peterson gfs2_log_lock(sdp); 18916615be1SSteven Whitehouse ld = bh_log_desc(bh); 19016615be1SSteven Whitehouse ptr = bh_log_ptr(bh); 191b3b94faaSDavid Teigland ld->ld_length = cpu_to_be32(num + 1); 192b3b94faaSDavid Teigland ld->ld_data1 = cpu_to_be32(num); 193b3b94faaSDavid Teigland 194b3b94faaSDavid Teigland n = 0; 195568f4c96SSteven Whitehouse list_for_each_entry_continue(bd1, &sdp->sd_log_le_buf, 196568f4c96SSteven Whitehouse bd_le.le_list) { 197b3b94faaSDavid Teigland *ptr++ = cpu_to_be64(bd1->bd_bh->b_blocknr); 198b3b94faaSDavid Teigland if (++n >= num) 199b3b94faaSDavid Teigland break; 200b3b94faaSDavid Teigland } 201b3b94faaSDavid Teigland 202905d2aefSBob Peterson gfs2_log_unlock(sdp); 203c969f58cSSteven Whitehouse submit_bh(WRITE_SYNC_PLUG, bh); 204905d2aefSBob Peterson gfs2_log_lock(sdp); 205b3b94faaSDavid Teigland 206b3b94faaSDavid Teigland n = 0; 207568f4c96SSteven Whitehouse list_for_each_entry_continue(bd2, &sdp->sd_log_le_buf, 208568f4c96SSteven Whitehouse bd_le.le_list) { 20916615be1SSteven Whitehouse get_bh(bd2->bd_bh); 210905d2aefSBob Peterson gfs2_log_unlock(sdp); 21116615be1SSteven Whitehouse lock_buffer(bd2->bd_bh); 212b3b94faaSDavid Teigland bh = gfs2_log_fake_buf(sdp, bd2->bd_bh); 213c969f58cSSteven Whitehouse submit_bh(WRITE_SYNC_PLUG, bh); 214905d2aefSBob Peterson gfs2_log_lock(sdp); 215b3b94faaSDavid Teigland if (++n >= num) 216b3b94faaSDavid Teigland break; 217b3b94faaSDavid Teigland } 218b3b94faaSDavid Teigland 219905d2aefSBob Peterson BUG_ON(total < num); 220b3b94faaSDavid Teigland total -= num; 221b3b94faaSDavid Teigland } 222905d2aefSBob Peterson gfs2_log_unlock(sdp); 223b3b94faaSDavid Teigland } 224b3b94faaSDavid Teigland 225b3b94faaSDavid Teigland static void buf_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) 226b3b94faaSDavid Teigland { 227b3b94faaSDavid Teigland struct list_head *head = &sdp->sd_log_le_buf; 228b3b94faaSDavid Teigland struct gfs2_bufdata *bd; 229b3b94faaSDavid Teigland 230b3b94faaSDavid Teigland while (!list_empty(head)) { 231b3b94faaSDavid Teigland bd = list_entry(head->next, struct gfs2_bufdata, bd_le.le_list); 232b3b94faaSDavid Teigland list_del_init(&bd->bd_le.le_list); 233b3b94faaSDavid Teigland sdp->sd_log_num_buf--; 234b3b94faaSDavid Teigland 235a98ab220SSteven Whitehouse gfs2_unpin(sdp, bd->bd_bh, ai); 236b3b94faaSDavid Teigland } 237b3b94faaSDavid Teigland gfs2_assert_warn(sdp, !sdp->sd_log_num_buf); 238b3b94faaSDavid Teigland } 239b3b94faaSDavid Teigland 240b3b94faaSDavid Teigland static void buf_lo_before_scan(struct gfs2_jdesc *jd, 24155167622SAl Viro struct gfs2_log_header_host *head, int pass) 242b3b94faaSDavid Teigland { 243feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 244b3b94faaSDavid Teigland 245b3b94faaSDavid Teigland if (pass != 0) 246b3b94faaSDavid Teigland return; 247b3b94faaSDavid Teigland 248b3b94faaSDavid Teigland sdp->sd_found_blocks = 0; 249b3b94faaSDavid Teigland sdp->sd_replayed_blocks = 0; 250b3b94faaSDavid Teigland } 251b3b94faaSDavid Teigland 252b3b94faaSDavid Teigland static int buf_lo_scan_elements(struct gfs2_jdesc *jd, unsigned int start, 253b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld, __be64 *ptr, 254b3b94faaSDavid Teigland int pass) 255b3b94faaSDavid Teigland { 256feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(jd->jd_inode); 257feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 2585c676f6dSSteven Whitehouse struct gfs2_glock *gl = ip->i_gl; 259b3b94faaSDavid Teigland unsigned int blks = be32_to_cpu(ld->ld_data1); 260b3b94faaSDavid Teigland struct buffer_head *bh_log, *bh_ip; 261cd915493SSteven Whitehouse u64 blkno; 262b3b94faaSDavid Teigland int error = 0; 263b3b94faaSDavid Teigland 264b3b94faaSDavid Teigland if (pass != 1 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_METADATA) 265b3b94faaSDavid Teigland return 0; 266b3b94faaSDavid Teigland 267b3b94faaSDavid Teigland gfs2_replay_incr_blk(sdp, &start); 268b3b94faaSDavid Teigland 269b3b94faaSDavid Teigland for (; blks; gfs2_replay_incr_blk(sdp, &start), blks--) { 270b3b94faaSDavid Teigland blkno = be64_to_cpu(*ptr++); 271b3b94faaSDavid Teigland 272b3b94faaSDavid Teigland sdp->sd_found_blocks++; 273b3b94faaSDavid Teigland 274b3b94faaSDavid Teigland if (gfs2_revoke_check(sdp, blkno, start)) 275b3b94faaSDavid Teigland continue; 276b3b94faaSDavid Teigland 277b3b94faaSDavid Teigland error = gfs2_replay_read_block(jd, start, &bh_log); 278b3b94faaSDavid Teigland if (error) 279b3b94faaSDavid Teigland return error; 280b3b94faaSDavid Teigland 281b3b94faaSDavid Teigland bh_ip = gfs2_meta_new(gl, blkno); 282b3b94faaSDavid Teigland memcpy(bh_ip->b_data, bh_log->b_data, bh_log->b_size); 283b3b94faaSDavid Teigland 284b3b94faaSDavid Teigland if (gfs2_meta_check(sdp, bh_ip)) 285b3b94faaSDavid Teigland error = -EIO; 286b3b94faaSDavid Teigland else 287b3b94faaSDavid Teigland mark_buffer_dirty(bh_ip); 288b3b94faaSDavid Teigland 289b3b94faaSDavid Teigland brelse(bh_log); 290b3b94faaSDavid Teigland brelse(bh_ip); 291b3b94faaSDavid Teigland 292b3b94faaSDavid Teigland if (error) 293b3b94faaSDavid Teigland break; 294b3b94faaSDavid Teigland 295b3b94faaSDavid Teigland sdp->sd_replayed_blocks++; 296b3b94faaSDavid Teigland } 297b3b94faaSDavid Teigland 298b3b94faaSDavid Teigland return error; 299b3b94faaSDavid Teigland } 300b3b94faaSDavid Teigland 301b3b94faaSDavid Teigland static void buf_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass) 302b3b94faaSDavid Teigland { 303feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(jd->jd_inode); 304feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 305b3b94faaSDavid Teigland 306b3b94faaSDavid Teigland if (error) { 3077276b3b0SSteven Whitehouse gfs2_meta_sync(ip->i_gl); 308b3b94faaSDavid Teigland return; 309b3b94faaSDavid Teigland } 310b3b94faaSDavid Teigland if (pass != 1) 311b3b94faaSDavid Teigland return; 312b3b94faaSDavid Teigland 3137276b3b0SSteven Whitehouse gfs2_meta_sync(ip->i_gl); 314b3b94faaSDavid Teigland 315b3b94faaSDavid Teigland fs_info(sdp, "jid=%u: Replayed %u of %u blocks\n", 316b3b94faaSDavid Teigland jd->jd_jid, sdp->sd_replayed_blocks, sdp->sd_found_blocks); 317b3b94faaSDavid Teigland } 318b3b94faaSDavid Teigland 319b3b94faaSDavid Teigland static void revoke_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 320b3b94faaSDavid Teigland { 321b3b94faaSDavid Teigland struct gfs2_trans *tr; 322b3b94faaSDavid Teigland 3235c676f6dSSteven Whitehouse tr = current->journal_info; 324b3b94faaSDavid Teigland tr->tr_touched = 1; 325b3b94faaSDavid Teigland tr->tr_num_revoke++; 326b3b94faaSDavid Teigland sdp->sd_log_num_revoke++; 327b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_revoke); 328b3b94faaSDavid Teigland } 329b3b94faaSDavid Teigland 330b3b94faaSDavid Teigland static void revoke_lo_before_commit(struct gfs2_sbd *sdp) 331b3b94faaSDavid Teigland { 332b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld; 333b3b94faaSDavid Teigland struct gfs2_meta_header *mh; 334b3b94faaSDavid Teigland struct buffer_head *bh; 335b3b94faaSDavid Teigland unsigned int offset; 336b3b94faaSDavid Teigland struct list_head *head = &sdp->sd_log_le_revoke; 33782e86087SSteven Whitehouse struct gfs2_bufdata *bd; 338b3b94faaSDavid Teigland 339b3b94faaSDavid Teigland if (!sdp->sd_log_num_revoke) 340b3b94faaSDavid Teigland return; 341b3b94faaSDavid Teigland 34216615be1SSteven Whitehouse bh = gfs2_get_log_desc(sdp, GFS2_LOG_DESC_REVOKE); 34316615be1SSteven Whitehouse ld = bh_log_desc(bh); 344568f4c96SSteven Whitehouse ld->ld_length = cpu_to_be32(gfs2_struct2blk(sdp, sdp->sd_log_num_revoke, 345cd915493SSteven Whitehouse sizeof(u64))); 346b3b94faaSDavid Teigland ld->ld_data1 = cpu_to_be32(sdp->sd_log_num_revoke); 347b3b94faaSDavid Teigland offset = sizeof(struct gfs2_log_descriptor); 348b3b94faaSDavid Teigland 349b3b94faaSDavid Teigland while (!list_empty(head)) { 35082e86087SSteven Whitehouse bd = list_entry(head->next, struct gfs2_bufdata, bd_le.le_list); 35182e86087SSteven Whitehouse list_del_init(&bd->bd_le.le_list); 352b3b94faaSDavid Teigland sdp->sd_log_num_revoke--; 353b3b94faaSDavid Teigland 354cd915493SSteven Whitehouse if (offset + sizeof(u64) > sdp->sd_sb.sb_bsize) { 355c969f58cSSteven Whitehouse submit_bh(WRITE_SYNC_PLUG, bh); 356b3b94faaSDavid Teigland 357b3b94faaSDavid Teigland bh = gfs2_log_get_buf(sdp); 358b3b94faaSDavid Teigland mh = (struct gfs2_meta_header *)bh->b_data; 359b3b94faaSDavid Teigland mh->mh_magic = cpu_to_be32(GFS2_MAGIC); 360e3167dedSSteven Whitehouse mh->mh_type = cpu_to_be32(GFS2_METATYPE_LB); 361e3167dedSSteven Whitehouse mh->mh_format = cpu_to_be32(GFS2_FORMAT_LB); 362b3b94faaSDavid Teigland offset = sizeof(struct gfs2_meta_header); 363b3b94faaSDavid Teigland } 364b3b94faaSDavid Teigland 36582e86087SSteven Whitehouse *(__be64 *)(bh->b_data + offset) = cpu_to_be64(bd->bd_blkno); 3660820ab51SSteven Whitehouse kmem_cache_free(gfs2_bufdata_cachep, bd); 367b3b94faaSDavid Teigland 368cd915493SSteven Whitehouse offset += sizeof(u64); 369b3b94faaSDavid Teigland } 370b3b94faaSDavid Teigland gfs2_assert_withdraw(sdp, !sdp->sd_log_num_revoke); 371b3b94faaSDavid Teigland 372c969f58cSSteven Whitehouse submit_bh(WRITE_SYNC_PLUG, bh); 373b3b94faaSDavid Teigland } 374b3b94faaSDavid Teigland 375b3b94faaSDavid Teigland static void revoke_lo_before_scan(struct gfs2_jdesc *jd, 37655167622SAl Viro struct gfs2_log_header_host *head, int pass) 377b3b94faaSDavid Teigland { 378feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 379b3b94faaSDavid Teigland 380b3b94faaSDavid Teigland if (pass != 0) 381b3b94faaSDavid Teigland return; 382b3b94faaSDavid Teigland 383b3b94faaSDavid Teigland sdp->sd_found_revokes = 0; 384b3b94faaSDavid Teigland sdp->sd_replay_tail = head->lh_tail; 385b3b94faaSDavid Teigland } 386b3b94faaSDavid Teigland 387b3b94faaSDavid Teigland static int revoke_lo_scan_elements(struct gfs2_jdesc *jd, unsigned int start, 388b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld, __be64 *ptr, 389b3b94faaSDavid Teigland int pass) 390b3b94faaSDavid Teigland { 391feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 392b3b94faaSDavid Teigland unsigned int blks = be32_to_cpu(ld->ld_length); 393b3b94faaSDavid Teigland unsigned int revokes = be32_to_cpu(ld->ld_data1); 394b3b94faaSDavid Teigland struct buffer_head *bh; 395b3b94faaSDavid Teigland unsigned int offset; 396cd915493SSteven Whitehouse u64 blkno; 397b3b94faaSDavid Teigland int first = 1; 398b3b94faaSDavid Teigland int error; 399b3b94faaSDavid Teigland 400b3b94faaSDavid Teigland if (pass != 0 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_REVOKE) 401b3b94faaSDavid Teigland return 0; 402b3b94faaSDavid Teigland 403b3b94faaSDavid Teigland offset = sizeof(struct gfs2_log_descriptor); 404b3b94faaSDavid Teigland 405b3b94faaSDavid Teigland for (; blks; gfs2_replay_incr_blk(sdp, &start), blks--) { 406b3b94faaSDavid Teigland error = gfs2_replay_read_block(jd, start, &bh); 407b3b94faaSDavid Teigland if (error) 408b3b94faaSDavid Teigland return error; 409b3b94faaSDavid Teigland 410b3b94faaSDavid Teigland if (!first) 411b3b94faaSDavid Teigland gfs2_metatype_check(sdp, bh, GFS2_METATYPE_LB); 412b3b94faaSDavid Teigland 413cd915493SSteven Whitehouse while (offset + sizeof(u64) <= sdp->sd_sb.sb_bsize) { 414b3b94faaSDavid Teigland blkno = be64_to_cpu(*(__be64 *)(bh->b_data + offset)); 415b3b94faaSDavid Teigland 416b3b94faaSDavid Teigland error = gfs2_revoke_add(sdp, blkno, start); 4173ad62e87SBob Peterson if (error < 0) { 4183ad62e87SBob Peterson brelse(bh); 419b3b94faaSDavid Teigland return error; 4203ad62e87SBob Peterson } 421b3b94faaSDavid Teigland else if (error) 422b3b94faaSDavid Teigland sdp->sd_found_revokes++; 423b3b94faaSDavid Teigland 424b3b94faaSDavid Teigland if (!--revokes) 425b3b94faaSDavid Teigland break; 426cd915493SSteven Whitehouse offset += sizeof(u64); 427b3b94faaSDavid Teigland } 428b3b94faaSDavid Teigland 429b3b94faaSDavid Teigland brelse(bh); 430b3b94faaSDavid Teigland offset = sizeof(struct gfs2_meta_header); 431b3b94faaSDavid Teigland first = 0; 432b3b94faaSDavid Teigland } 433b3b94faaSDavid Teigland 434b3b94faaSDavid Teigland return 0; 435b3b94faaSDavid Teigland } 436b3b94faaSDavid Teigland 437b3b94faaSDavid Teigland static void revoke_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass) 438b3b94faaSDavid Teigland { 439feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 440b3b94faaSDavid Teigland 441b3b94faaSDavid Teigland if (error) { 442b3b94faaSDavid Teigland gfs2_revoke_clean(sdp); 443b3b94faaSDavid Teigland return; 444b3b94faaSDavid Teigland } 445b3b94faaSDavid Teigland if (pass != 1) 446b3b94faaSDavid Teigland return; 447b3b94faaSDavid Teigland 448b3b94faaSDavid Teigland fs_info(sdp, "jid=%u: Found %u revoke tags\n", 449b3b94faaSDavid Teigland jd->jd_jid, sdp->sd_found_revokes); 450b3b94faaSDavid Teigland 451b3b94faaSDavid Teigland gfs2_revoke_clean(sdp); 452b3b94faaSDavid Teigland } 453b3b94faaSDavid Teigland 454b3b94faaSDavid Teigland static void rg_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 455b3b94faaSDavid Teigland { 456b3b94faaSDavid Teigland struct gfs2_rgrpd *rgd; 4575c676f6dSSteven Whitehouse struct gfs2_trans *tr = current->journal_info; 458b3b94faaSDavid Teigland 4595c676f6dSSteven Whitehouse tr->tr_touched = 1; 460b3b94faaSDavid Teigland 461b3b94faaSDavid Teigland rgd = container_of(le, struct gfs2_rgrpd, rd_le); 462b3b94faaSDavid Teigland 463b3b94faaSDavid Teigland gfs2_log_lock(sdp); 46468835625SBenjamin Marzinski if (!list_empty(&le->le_list)){ 46568835625SBenjamin Marzinski gfs2_log_unlock(sdp); 46668835625SBenjamin Marzinski return; 46768835625SBenjamin Marzinski } 46868835625SBenjamin Marzinski gfs2_rgrp_bh_hold(rgd); 469b3b94faaSDavid Teigland sdp->sd_log_num_rg++; 470b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_rg); 471b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 472b3b94faaSDavid Teigland } 473b3b94faaSDavid Teigland 474b3b94faaSDavid Teigland static void rg_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) 475b3b94faaSDavid Teigland { 476b3b94faaSDavid Teigland struct list_head *head = &sdp->sd_log_le_rg; 477b3b94faaSDavid Teigland struct gfs2_rgrpd *rgd; 478b3b94faaSDavid Teigland 479b3b94faaSDavid Teigland while (!list_empty(head)) { 480b3b94faaSDavid Teigland rgd = list_entry(head->next, struct gfs2_rgrpd, rd_le.le_list); 481b3b94faaSDavid Teigland list_del_init(&rgd->rd_le.le_list); 482b3b94faaSDavid Teigland sdp->sd_log_num_rg--; 483b3b94faaSDavid Teigland 484b3b94faaSDavid Teigland gfs2_rgrp_repolish_clones(rgd); 485b3b94faaSDavid Teigland gfs2_rgrp_bh_put(rgd); 486b3b94faaSDavid Teigland } 487b3b94faaSDavid Teigland gfs2_assert_warn(sdp, !sdp->sd_log_num_rg); 488b3b94faaSDavid Teigland } 489b3b94faaSDavid Teigland 49018ec7d5cSSteven Whitehouse /** 49118ec7d5cSSteven Whitehouse * databuf_lo_add - Add a databuf to the transaction. 49218ec7d5cSSteven Whitehouse * 49318ec7d5cSSteven Whitehouse * This is used in two distinct cases: 49418ec7d5cSSteven Whitehouse * i) In ordered write mode 49518ec7d5cSSteven Whitehouse * We put the data buffer on a list so that we can ensure that its 49618ec7d5cSSteven Whitehouse * synced to disk at the right time 49718ec7d5cSSteven Whitehouse * ii) In journaled data mode 49818ec7d5cSSteven Whitehouse * We need to journal the data block in the same way as metadata in 49918ec7d5cSSteven Whitehouse * the functions above. The difference is that here we have a tag 50018ec7d5cSSteven Whitehouse * which is two __be64's being the block number (as per meta data) 50118ec7d5cSSteven Whitehouse * and a flag which says whether the data block needs escaping or 50218ec7d5cSSteven Whitehouse * not. This means we need a new log entry for each 251 or so data 50318ec7d5cSSteven Whitehouse * blocks, which isn't an enormous overhead but twice as much as 50418ec7d5cSSteven Whitehouse * for normal metadata blocks. 50518ec7d5cSSteven Whitehouse */ 506b3b94faaSDavid Teigland static void databuf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 507b3b94faaSDavid Teigland { 50818ec7d5cSSteven Whitehouse struct gfs2_bufdata *bd = container_of(le, struct gfs2_bufdata, bd_le); 5095c676f6dSSteven Whitehouse struct gfs2_trans *tr = current->journal_info; 51018ec7d5cSSteven Whitehouse struct address_space *mapping = bd->bd_bh->b_page->mapping; 511feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(mapping->host); 512b3b94faaSDavid Teigland 5139b9107a5SSteven Whitehouse lock_buffer(bd->bd_bh); 5148bd95727SSteven Whitehouse gfs2_log_lock(sdp); 5159ff8ec32SSteven Whitehouse if (tr) { 5169b9107a5SSteven Whitehouse if (!list_empty(&bd->bd_list_tr)) 5179b9107a5SSteven Whitehouse goto out; 51818ec7d5cSSteven Whitehouse tr->tr_touched = 1; 519773ed1a0SRobert Peterson if (gfs2_is_jdata(ip)) { 52018ec7d5cSSteven Whitehouse tr->tr_num_buf++; 52118ec7d5cSSteven Whitehouse list_add(&bd->bd_list_tr, &tr->tr_list_buf); 522773ed1a0SRobert Peterson } 5239ff8ec32SSteven Whitehouse } 524ddf4b426SBenjamin Marzinski if (!list_empty(&le->le_list)) 5259b9107a5SSteven Whitehouse goto out; 5262332c443SRobert Peterson 5272bcd610dSSteven Whitehouse set_bit(GLF_LFLUSH, &bd->bd_gl->gl_flags); 5282bcd610dSSteven Whitehouse set_bit(GLF_DIRTY, &bd->bd_gl->gl_flags); 5292332c443SRobert Peterson if (gfs2_is_jdata(ip)) { 5302332c443SRobert Peterson gfs2_pin(sdp, bd->bd_bh); 5312332c443SRobert Peterson tr->tr_num_databuf_new++; 532bdcb8856SBob Peterson sdp->sd_log_num_databuf++; 533e5884636SDave Chinner list_add_tail(&le->le_list, &sdp->sd_log_le_databuf); 534d7b616e2SSteven Whitehouse } else { 535e5884636SDave Chinner list_add_tail(&le->le_list, &sdp->sd_log_le_ordered); 536d7b616e2SSteven Whitehouse } 5379b9107a5SSteven Whitehouse out: 538b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 5399b9107a5SSteven Whitehouse unlock_buffer(bd->bd_bh); 540b3b94faaSDavid Teigland } 541b3b94faaSDavid Teigland 54216615be1SSteven Whitehouse static void gfs2_check_magic(struct buffer_head *bh) 54318ec7d5cSSteven Whitehouse { 54418ec7d5cSSteven Whitehouse void *kaddr; 54518ec7d5cSSteven Whitehouse __be32 *ptr; 54618ec7d5cSSteven Whitehouse 54716615be1SSteven Whitehouse clear_buffer_escaped(bh); 54816615be1SSteven Whitehouse kaddr = kmap_atomic(bh->b_page, KM_USER0); 54918ec7d5cSSteven Whitehouse ptr = kaddr + bh_offset(bh); 55018ec7d5cSSteven Whitehouse if (*ptr == cpu_to_be32(GFS2_MAGIC)) 55116615be1SSteven Whitehouse set_buffer_escaped(bh); 552c312c4fdSRussell Cattelan kunmap_atomic(kaddr, KM_USER0); 55316615be1SSteven Whitehouse } 55418ec7d5cSSteven Whitehouse 55516615be1SSteven Whitehouse static void gfs2_write_blocks(struct gfs2_sbd *sdp, struct buffer_head *bh, 55616615be1SSteven Whitehouse struct list_head *list, struct list_head *done, 55716615be1SSteven Whitehouse unsigned int n) 55816615be1SSteven Whitehouse { 55916615be1SSteven Whitehouse struct buffer_head *bh1; 56016615be1SSteven Whitehouse struct gfs2_log_descriptor *ld; 56116615be1SSteven Whitehouse struct gfs2_bufdata *bd; 56216615be1SSteven Whitehouse __be64 *ptr; 56316615be1SSteven Whitehouse 56416615be1SSteven Whitehouse if (!bh) 56516615be1SSteven Whitehouse return; 56616615be1SSteven Whitehouse 56716615be1SSteven Whitehouse ld = bh_log_desc(bh); 56816615be1SSteven Whitehouse ld->ld_length = cpu_to_be32(n + 1); 56916615be1SSteven Whitehouse ld->ld_data1 = cpu_to_be32(n); 57016615be1SSteven Whitehouse 57116615be1SSteven Whitehouse ptr = bh_log_ptr(bh); 57216615be1SSteven Whitehouse 57316615be1SSteven Whitehouse get_bh(bh); 574c969f58cSSteven Whitehouse submit_bh(WRITE_SYNC_PLUG, bh); 57516615be1SSteven Whitehouse gfs2_log_lock(sdp); 57616615be1SSteven Whitehouse while(!list_empty(list)) { 57716615be1SSteven Whitehouse bd = list_entry(list->next, struct gfs2_bufdata, bd_le.le_list); 57816615be1SSteven Whitehouse list_move_tail(&bd->bd_le.le_list, done); 57916615be1SSteven Whitehouse get_bh(bd->bd_bh); 58016615be1SSteven Whitehouse while (be64_to_cpu(*ptr) != bd->bd_bh->b_blocknr) { 58116615be1SSteven Whitehouse gfs2_log_incr_head(sdp); 58216615be1SSteven Whitehouse ptr += 2; 58316615be1SSteven Whitehouse } 58416615be1SSteven Whitehouse gfs2_log_unlock(sdp); 58516615be1SSteven Whitehouse lock_buffer(bd->bd_bh); 58616615be1SSteven Whitehouse if (buffer_escaped(bd->bd_bh)) { 58716615be1SSteven Whitehouse void *kaddr; 58816615be1SSteven Whitehouse bh1 = gfs2_log_get_buf(sdp); 58916615be1SSteven Whitehouse kaddr = kmap_atomic(bd->bd_bh->b_page, KM_USER0); 59016615be1SSteven Whitehouse memcpy(bh1->b_data, kaddr + bh_offset(bd->bd_bh), 59116615be1SSteven Whitehouse bh1->b_size); 59216615be1SSteven Whitehouse kunmap_atomic(kaddr, KM_USER0); 59316615be1SSteven Whitehouse *(__be32 *)bh1->b_data = 0; 59416615be1SSteven Whitehouse clear_buffer_escaped(bd->bd_bh); 59516615be1SSteven Whitehouse unlock_buffer(bd->bd_bh); 59616615be1SSteven Whitehouse brelse(bd->bd_bh); 59716615be1SSteven Whitehouse } else { 59816615be1SSteven Whitehouse bh1 = gfs2_log_fake_buf(sdp, bd->bd_bh); 59916615be1SSteven Whitehouse } 600c969f58cSSteven Whitehouse submit_bh(WRITE_SYNC_PLUG, bh1); 60116615be1SSteven Whitehouse gfs2_log_lock(sdp); 60216615be1SSteven Whitehouse ptr += 2; 60316615be1SSteven Whitehouse } 60416615be1SSteven Whitehouse gfs2_log_unlock(sdp); 60516615be1SSteven Whitehouse brelse(bh); 60618ec7d5cSSteven Whitehouse } 60718ec7d5cSSteven Whitehouse 60818ec7d5cSSteven Whitehouse /** 60918ec7d5cSSteven Whitehouse * databuf_lo_before_commit - Scan the data buffers, writing as we go 61018ec7d5cSSteven Whitehouse * 61118ec7d5cSSteven Whitehouse */ 612d7b616e2SSteven Whitehouse 613b3b94faaSDavid Teigland static void databuf_lo_before_commit(struct gfs2_sbd *sdp) 614b3b94faaSDavid Teigland { 61516615be1SSteven Whitehouse struct gfs2_bufdata *bd = NULL; 61616615be1SSteven Whitehouse struct buffer_head *bh = NULL; 61716615be1SSteven Whitehouse unsigned int n = 0; 61816615be1SSteven Whitehouse __be64 *ptr = NULL, *end = NULL; 61916615be1SSteven Whitehouse LIST_HEAD(processed); 62016615be1SSteven Whitehouse LIST_HEAD(in_progress); 621b3b94faaSDavid Teigland 622f55ab26aSSteven Whitehouse gfs2_log_lock(sdp); 62316615be1SSteven Whitehouse while (!list_empty(&sdp->sd_log_le_databuf)) { 62416615be1SSteven Whitehouse if (ptr == end) { 625f55ab26aSSteven Whitehouse gfs2_log_unlock(sdp); 62616615be1SSteven Whitehouse gfs2_write_blocks(sdp, bh, &in_progress, &processed, n); 627d7b616e2SSteven Whitehouse n = 0; 62816615be1SSteven Whitehouse bh = gfs2_get_log_desc(sdp, GFS2_LOG_DESC_JDATA); 62916615be1SSteven Whitehouse ptr = bh_log_ptr(bh); 63016615be1SSteven Whitehouse end = bh_ptr_end(bh) - 1; 631f55ab26aSSteven Whitehouse gfs2_log_lock(sdp); 63218ec7d5cSSteven Whitehouse continue; 63316615be1SSteven Whitehouse } 63416615be1SSteven Whitehouse bd = list_entry(sdp->sd_log_le_databuf.next, struct gfs2_bufdata, bd_le.le_list); 63516615be1SSteven Whitehouse list_move_tail(&bd->bd_le.le_list, &in_progress); 63616615be1SSteven Whitehouse gfs2_check_magic(bd->bd_bh); 63716615be1SSteven Whitehouse *ptr++ = cpu_to_be64(bd->bd_bh->b_blocknr); 63816615be1SSteven Whitehouse *ptr++ = cpu_to_be64(buffer_escaped(bh) ? 1 : 0); 63916615be1SSteven Whitehouse n++; 64016615be1SSteven Whitehouse } 641f55ab26aSSteven Whitehouse gfs2_log_unlock(sdp); 64216615be1SSteven Whitehouse gfs2_write_blocks(sdp, bh, &in_progress, &processed, n); 643f55ab26aSSteven Whitehouse gfs2_log_lock(sdp); 64416615be1SSteven Whitehouse list_splice(&processed, &sdp->sd_log_le_databuf); 645f55ab26aSSteven Whitehouse gfs2_log_unlock(sdp); 646b3b94faaSDavid Teigland } 647b3b94faaSDavid Teigland 64818ec7d5cSSteven Whitehouse static int databuf_lo_scan_elements(struct gfs2_jdesc *jd, unsigned int start, 64918ec7d5cSSteven Whitehouse struct gfs2_log_descriptor *ld, 65018ec7d5cSSteven Whitehouse __be64 *ptr, int pass) 65118ec7d5cSSteven Whitehouse { 652feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(jd->jd_inode); 653feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 6545c676f6dSSteven Whitehouse struct gfs2_glock *gl = ip->i_gl; 65518ec7d5cSSteven Whitehouse unsigned int blks = be32_to_cpu(ld->ld_data1); 65618ec7d5cSSteven Whitehouse struct buffer_head *bh_log, *bh_ip; 657cd915493SSteven Whitehouse u64 blkno; 658cd915493SSteven Whitehouse u64 esc; 65918ec7d5cSSteven Whitehouse int error = 0; 66018ec7d5cSSteven Whitehouse 66118ec7d5cSSteven Whitehouse if (pass != 1 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_JDATA) 66218ec7d5cSSteven Whitehouse return 0; 66318ec7d5cSSteven Whitehouse 66418ec7d5cSSteven Whitehouse gfs2_replay_incr_blk(sdp, &start); 66518ec7d5cSSteven Whitehouse for (; blks; gfs2_replay_incr_blk(sdp, &start), blks--) { 66618ec7d5cSSteven Whitehouse blkno = be64_to_cpu(*ptr++); 66718ec7d5cSSteven Whitehouse esc = be64_to_cpu(*ptr++); 66818ec7d5cSSteven Whitehouse 66918ec7d5cSSteven Whitehouse sdp->sd_found_blocks++; 67018ec7d5cSSteven Whitehouse 67118ec7d5cSSteven Whitehouse if (gfs2_revoke_check(sdp, blkno, start)) 67218ec7d5cSSteven Whitehouse continue; 67318ec7d5cSSteven Whitehouse 67418ec7d5cSSteven Whitehouse error = gfs2_replay_read_block(jd, start, &bh_log); 67518ec7d5cSSteven Whitehouse if (error) 67618ec7d5cSSteven Whitehouse return error; 67718ec7d5cSSteven Whitehouse 67818ec7d5cSSteven Whitehouse bh_ip = gfs2_meta_new(gl, blkno); 67918ec7d5cSSteven Whitehouse memcpy(bh_ip->b_data, bh_log->b_data, bh_log->b_size); 68018ec7d5cSSteven Whitehouse 68118ec7d5cSSteven Whitehouse /* Unescape */ 68218ec7d5cSSteven Whitehouse if (esc) { 68318ec7d5cSSteven Whitehouse __be32 *eptr = (__be32 *)bh_ip->b_data; 68418ec7d5cSSteven Whitehouse *eptr = cpu_to_be32(GFS2_MAGIC); 68518ec7d5cSSteven Whitehouse } 68618ec7d5cSSteven Whitehouse mark_buffer_dirty(bh_ip); 68718ec7d5cSSteven Whitehouse 68818ec7d5cSSteven Whitehouse brelse(bh_log); 68918ec7d5cSSteven Whitehouse brelse(bh_ip); 69018ec7d5cSSteven Whitehouse if (error) 69118ec7d5cSSteven Whitehouse break; 69218ec7d5cSSteven Whitehouse 69318ec7d5cSSteven Whitehouse sdp->sd_replayed_blocks++; 69418ec7d5cSSteven Whitehouse } 69518ec7d5cSSteven Whitehouse 69618ec7d5cSSteven Whitehouse return error; 69718ec7d5cSSteven Whitehouse } 69818ec7d5cSSteven Whitehouse 69918ec7d5cSSteven Whitehouse /* FIXME: sort out accounting for log blocks etc. */ 70018ec7d5cSSteven Whitehouse 70118ec7d5cSSteven Whitehouse static void databuf_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass) 70218ec7d5cSSteven Whitehouse { 703feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(jd->jd_inode); 704feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 70518ec7d5cSSteven Whitehouse 70618ec7d5cSSteven Whitehouse if (error) { 7077276b3b0SSteven Whitehouse gfs2_meta_sync(ip->i_gl); 70818ec7d5cSSteven Whitehouse return; 70918ec7d5cSSteven Whitehouse } 71018ec7d5cSSteven Whitehouse if (pass != 1) 71118ec7d5cSSteven Whitehouse return; 71218ec7d5cSSteven Whitehouse 71318ec7d5cSSteven Whitehouse /* data sync? */ 7147276b3b0SSteven Whitehouse gfs2_meta_sync(ip->i_gl); 71518ec7d5cSSteven Whitehouse 71618ec7d5cSSteven Whitehouse fs_info(sdp, "jid=%u: Replayed %u of %u data blocks\n", 71718ec7d5cSSteven Whitehouse jd->jd_jid, sdp->sd_replayed_blocks, sdp->sd_found_blocks); 71818ec7d5cSSteven Whitehouse } 71918ec7d5cSSteven Whitehouse 72018ec7d5cSSteven Whitehouse static void databuf_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) 72118ec7d5cSSteven Whitehouse { 72218ec7d5cSSteven Whitehouse struct list_head *head = &sdp->sd_log_le_databuf; 72318ec7d5cSSteven Whitehouse struct gfs2_bufdata *bd; 72418ec7d5cSSteven Whitehouse 72518ec7d5cSSteven Whitehouse while (!list_empty(head)) { 72618ec7d5cSSteven Whitehouse bd = list_entry(head->next, struct gfs2_bufdata, bd_le.le_list); 727b8e1aabfSSteven Whitehouse list_del_init(&bd->bd_le.le_list); 72818ec7d5cSSteven Whitehouse sdp->sd_log_num_databuf--; 72918ec7d5cSSteven Whitehouse gfs2_unpin(sdp, bd->bd_bh, ai); 73018ec7d5cSSteven Whitehouse } 73118ec7d5cSSteven Whitehouse gfs2_assert_warn(sdp, !sdp->sd_log_num_databuf); 73218ec7d5cSSteven Whitehouse } 73318ec7d5cSSteven Whitehouse 73418ec7d5cSSteven Whitehouse 735b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_buf_lops = { 736b3b94faaSDavid Teigland .lo_add = buf_lo_add, 737b3b94faaSDavid Teigland .lo_before_commit = buf_lo_before_commit, 738b3b94faaSDavid Teigland .lo_after_commit = buf_lo_after_commit, 739b3b94faaSDavid Teigland .lo_before_scan = buf_lo_before_scan, 740b3b94faaSDavid Teigland .lo_scan_elements = buf_lo_scan_elements, 741b3b94faaSDavid Teigland .lo_after_scan = buf_lo_after_scan, 742ea67eedbSSteven Whitehouse .lo_name = "buf", 743b3b94faaSDavid Teigland }; 744b3b94faaSDavid Teigland 745b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_revoke_lops = { 746b3b94faaSDavid Teigland .lo_add = revoke_lo_add, 747b3b94faaSDavid Teigland .lo_before_commit = revoke_lo_before_commit, 748b3b94faaSDavid Teigland .lo_before_scan = revoke_lo_before_scan, 749b3b94faaSDavid Teigland .lo_scan_elements = revoke_lo_scan_elements, 750b3b94faaSDavid Teigland .lo_after_scan = revoke_lo_after_scan, 751ea67eedbSSteven Whitehouse .lo_name = "revoke", 752b3b94faaSDavid Teigland }; 753b3b94faaSDavid Teigland 754b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_rg_lops = { 755b3b94faaSDavid Teigland .lo_add = rg_lo_add, 756b3b94faaSDavid Teigland .lo_after_commit = rg_lo_after_commit, 757ea67eedbSSteven Whitehouse .lo_name = "rg", 758b3b94faaSDavid Teigland }; 759b3b94faaSDavid Teigland 760b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_databuf_lops = { 761b3b94faaSDavid Teigland .lo_add = databuf_lo_add, 762b3b94faaSDavid Teigland .lo_before_commit = databuf_lo_before_commit, 76318ec7d5cSSteven Whitehouse .lo_after_commit = databuf_lo_after_commit, 76418ec7d5cSSteven Whitehouse .lo_scan_elements = databuf_lo_scan_elements, 76518ec7d5cSSteven Whitehouse .lo_after_scan = databuf_lo_after_scan, 766ea67eedbSSteven Whitehouse .lo_name = "databuf", 767b3b94faaSDavid Teigland }; 768b3b94faaSDavid Teigland 769b09e593dSSteven Whitehouse const struct gfs2_log_operations *gfs2_log_ops[] = { 770b3b94faaSDavid Teigland &gfs2_databuf_lops, 77116615be1SSteven Whitehouse &gfs2_buf_lops, 77216615be1SSteven Whitehouse &gfs2_rg_lops, 77316615be1SSteven Whitehouse &gfs2_revoke_lops, 774ea67eedbSSteven Whitehouse NULL, 775b3b94faaSDavid Teigland }; 776b3b94faaSDavid Teigland 777