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 4329687a2aSSteven Whitehouse BUG_ON(!current->journal_info); 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: 6829687a2aSSteven Whitehouse * @flags: The inode dirty flags 699b9107a5SSteven Whitehouse * 709b9107a5SSteven Whitehouse */ 719b9107a5SSteven Whitehouse 729b9107a5SSteven Whitehouse static void gfs2_unpin(struct gfs2_sbd *sdp, struct buffer_head *bh, 739b9107a5SSteven Whitehouse struct gfs2_ail *ai) 749b9107a5SSteven Whitehouse { 759b9107a5SSteven Whitehouse struct gfs2_bufdata *bd = bh->b_private; 769b9107a5SSteven Whitehouse 7729687a2aSSteven Whitehouse BUG_ON(!buffer_uptodate(bh)); 7829687a2aSSteven Whitehouse BUG_ON(!buffer_pinned(bh)); 799b9107a5SSteven Whitehouse 809b9107a5SSteven Whitehouse lock_buffer(bh); 819b9107a5SSteven Whitehouse mark_buffer_dirty(bh); 829b9107a5SSteven Whitehouse clear_buffer_pinned(bh); 839b9107a5SSteven Whitehouse 84d6a079e8SDave Chinner spin_lock(&sdp->sd_ail_lock); 859b9107a5SSteven Whitehouse if (bd->bd_ail) { 869b9107a5SSteven Whitehouse list_del(&bd->bd_ail_st_list); 879b9107a5SSteven Whitehouse brelse(bh); 889b9107a5SSteven Whitehouse } else { 899b9107a5SSteven Whitehouse struct gfs2_glock *gl = bd->bd_gl; 909b9107a5SSteven Whitehouse list_add(&bd->bd_ail_gl_list, &gl->gl_ail_list); 919b9107a5SSteven Whitehouse atomic_inc(&gl->gl_ail_count); 929b9107a5SSteven Whitehouse } 939b9107a5SSteven Whitehouse bd->bd_ail = ai; 949b9107a5SSteven Whitehouse list_add(&bd->bd_ail_st_list, &ai->ai_ail1_list); 95d6a079e8SDave Chinner spin_unlock(&sdp->sd_ail_lock); 96d6a079e8SDave Chinner 9729687a2aSSteven Whitehouse clear_bit(GLF_LFLUSH, &bd->bd_gl->gl_flags); 9863997775SSteven Whitehouse trace_gfs2_pin(bd, 0); 999b9107a5SSteven Whitehouse unlock_buffer(bh); 1005e687eacSBenjamin Marzinski atomic_dec(&sdp->sd_log_pinned); 1019b9107a5SSteven Whitehouse } 1029b9107a5SSteven Whitehouse 10316615be1SSteven Whitehouse 10416615be1SSteven Whitehouse static inline struct gfs2_log_descriptor *bh_log_desc(struct buffer_head *bh) 10516615be1SSteven Whitehouse { 10616615be1SSteven Whitehouse return (struct gfs2_log_descriptor *)bh->b_data; 10716615be1SSteven Whitehouse } 10816615be1SSteven Whitehouse 10916615be1SSteven Whitehouse static inline __be64 *bh_log_ptr(struct buffer_head *bh) 11016615be1SSteven Whitehouse { 11116615be1SSteven Whitehouse struct gfs2_log_descriptor *ld = bh_log_desc(bh); 11216615be1SSteven Whitehouse return (__force __be64 *)(ld + 1); 11316615be1SSteven Whitehouse } 11416615be1SSteven Whitehouse 11516615be1SSteven Whitehouse static inline __be64 *bh_ptr_end(struct buffer_head *bh) 11616615be1SSteven Whitehouse { 11716615be1SSteven Whitehouse return (__force __be64 *)(bh->b_data + bh->b_size); 11816615be1SSteven Whitehouse } 11916615be1SSteven Whitehouse 12016615be1SSteven Whitehouse 12116615be1SSteven Whitehouse static struct buffer_head *gfs2_get_log_desc(struct gfs2_sbd *sdp, u32 ld_type) 12216615be1SSteven Whitehouse { 12316615be1SSteven Whitehouse struct buffer_head *bh = gfs2_log_get_buf(sdp); 12416615be1SSteven Whitehouse struct gfs2_log_descriptor *ld = bh_log_desc(bh); 12516615be1SSteven Whitehouse ld->ld_header.mh_magic = cpu_to_be32(GFS2_MAGIC); 12616615be1SSteven Whitehouse ld->ld_header.mh_type = cpu_to_be32(GFS2_METATYPE_LD); 12716615be1SSteven Whitehouse ld->ld_header.mh_format = cpu_to_be32(GFS2_FORMAT_LD); 12816615be1SSteven Whitehouse ld->ld_type = cpu_to_be32(ld_type); 12916615be1SSteven Whitehouse ld->ld_length = 0; 13016615be1SSteven Whitehouse ld->ld_data1 = 0; 13116615be1SSteven Whitehouse ld->ld_data2 = 0; 13216615be1SSteven Whitehouse memset(ld->ld_reserved, 0, sizeof(ld->ld_reserved)); 13316615be1SSteven Whitehouse return bh; 13416615be1SSteven Whitehouse } 13516615be1SSteven Whitehouse 136b3b94faaSDavid Teigland static void buf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 137b3b94faaSDavid Teigland { 138b3b94faaSDavid Teigland struct gfs2_bufdata *bd = container_of(le, struct gfs2_bufdata, bd_le); 1390ab7d13fSSteven Whitehouse struct gfs2_meta_header *mh; 140b3b94faaSDavid Teigland struct gfs2_trans *tr; 141b3b94faaSDavid Teigland 1429b9107a5SSteven Whitehouse lock_buffer(bd->bd_bh); 1438bd95727SSteven Whitehouse gfs2_log_lock(sdp); 1449b9107a5SSteven Whitehouse if (!list_empty(&bd->bd_list_tr)) 1459b9107a5SSteven Whitehouse goto out; 1465c676f6dSSteven Whitehouse tr = current->journal_info; 147b3b94faaSDavid Teigland tr->tr_touched = 1; 148b3b94faaSDavid Teigland tr->tr_num_buf++; 149b3b94faaSDavid Teigland list_add(&bd->bd_list_tr, &tr->tr_list_buf); 150b3b94faaSDavid Teigland if (!list_empty(&le->le_list)) 1519b9107a5SSteven Whitehouse goto out; 1522bcd610dSSteven Whitehouse set_bit(GLF_LFLUSH, &bd->bd_gl->gl_flags); 1532bcd610dSSteven Whitehouse set_bit(GLF_DIRTY, &bd->bd_gl->gl_flags); 154b3b94faaSDavid Teigland gfs2_meta_check(sdp, bd->bd_bh); 155a98ab220SSteven Whitehouse gfs2_pin(sdp, bd->bd_bh); 1560ab7d13fSSteven Whitehouse mh = (struct gfs2_meta_header *)bd->bd_bh->b_data; 1570ab7d13fSSteven Whitehouse mh->__pad0 = cpu_to_be64(0); 1580ab7d13fSSteven Whitehouse mh->mh_jid = cpu_to_be32(sdp->sd_jdesc->jd_jid); 159b3b94faaSDavid Teigland sdp->sd_log_num_buf++; 160b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_buf); 161b3b94faaSDavid Teigland tr->tr_num_buf_new++; 1629b9107a5SSteven Whitehouse out: 1639b9107a5SSteven Whitehouse gfs2_log_unlock(sdp); 1649b9107a5SSteven Whitehouse unlock_buffer(bd->bd_bh); 165b3b94faaSDavid Teigland } 166b3b94faaSDavid Teigland 167b3b94faaSDavid Teigland static void buf_lo_before_commit(struct gfs2_sbd *sdp) 168b3b94faaSDavid Teigland { 169b3b94faaSDavid Teigland struct buffer_head *bh; 170b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld; 171b3b94faaSDavid Teigland struct gfs2_bufdata *bd1 = NULL, *bd2; 172905d2aefSBob Peterson unsigned int total; 173b3b94faaSDavid Teigland unsigned int limit; 174b3b94faaSDavid Teigland unsigned int num; 175b3b94faaSDavid Teigland unsigned n; 176b3b94faaSDavid Teigland __be64 *ptr; 177b3b94faaSDavid Teigland 1782332c443SRobert Peterson limit = buf_limit(sdp); 179b3b94faaSDavid Teigland /* for 4k blocks, limit = 503 */ 180b3b94faaSDavid Teigland 181905d2aefSBob Peterson gfs2_log_lock(sdp); 182905d2aefSBob Peterson total = sdp->sd_log_num_buf; 183b3b94faaSDavid Teigland bd1 = bd2 = list_prepare_entry(bd1, &sdp->sd_log_le_buf, bd_le.le_list); 184b3b94faaSDavid Teigland while(total) { 185b3b94faaSDavid Teigland num = total; 186b3b94faaSDavid Teigland if (total > limit) 187b3b94faaSDavid Teigland num = limit; 188905d2aefSBob Peterson gfs2_log_unlock(sdp); 18916615be1SSteven Whitehouse bh = gfs2_get_log_desc(sdp, GFS2_LOG_DESC_METADATA); 190905d2aefSBob Peterson gfs2_log_lock(sdp); 19116615be1SSteven Whitehouse ld = bh_log_desc(bh); 19216615be1SSteven Whitehouse ptr = bh_log_ptr(bh); 193b3b94faaSDavid Teigland ld->ld_length = cpu_to_be32(num + 1); 194b3b94faaSDavid Teigland ld->ld_data1 = cpu_to_be32(num); 195b3b94faaSDavid Teigland 196b3b94faaSDavid Teigland n = 0; 197568f4c96SSteven Whitehouse list_for_each_entry_continue(bd1, &sdp->sd_log_le_buf, 198568f4c96SSteven Whitehouse bd_le.le_list) { 199b3b94faaSDavid Teigland *ptr++ = cpu_to_be64(bd1->bd_bh->b_blocknr); 200b3b94faaSDavid Teigland if (++n >= num) 201b3b94faaSDavid Teigland break; 202b3b94faaSDavid Teigland } 203b3b94faaSDavid Teigland 204905d2aefSBob Peterson gfs2_log_unlock(sdp); 205721a9602SJens Axboe submit_bh(WRITE_SYNC, bh); 206905d2aefSBob Peterson gfs2_log_lock(sdp); 207b3b94faaSDavid Teigland 208b3b94faaSDavid Teigland n = 0; 209568f4c96SSteven Whitehouse list_for_each_entry_continue(bd2, &sdp->sd_log_le_buf, 210568f4c96SSteven Whitehouse bd_le.le_list) { 21116615be1SSteven Whitehouse get_bh(bd2->bd_bh); 212905d2aefSBob Peterson gfs2_log_unlock(sdp); 21316615be1SSteven Whitehouse lock_buffer(bd2->bd_bh); 214b3b94faaSDavid Teigland bh = gfs2_log_fake_buf(sdp, bd2->bd_bh); 215721a9602SJens Axboe submit_bh(WRITE_SYNC, bh); 216905d2aefSBob Peterson gfs2_log_lock(sdp); 217b3b94faaSDavid Teigland if (++n >= num) 218b3b94faaSDavid Teigland break; 219b3b94faaSDavid Teigland } 220b3b94faaSDavid Teigland 221905d2aefSBob Peterson BUG_ON(total < num); 222b3b94faaSDavid Teigland total -= num; 223b3b94faaSDavid Teigland } 224905d2aefSBob Peterson gfs2_log_unlock(sdp); 225b3b94faaSDavid Teigland } 226b3b94faaSDavid Teigland 227b3b94faaSDavid Teigland static void buf_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) 228b3b94faaSDavid Teigland { 229b3b94faaSDavid Teigland struct list_head *head = &sdp->sd_log_le_buf; 230b3b94faaSDavid Teigland struct gfs2_bufdata *bd; 231b3b94faaSDavid Teigland 232b3b94faaSDavid Teigland while (!list_empty(head)) { 233b3b94faaSDavid Teigland bd = list_entry(head->next, struct gfs2_bufdata, bd_le.le_list); 234b3b94faaSDavid Teigland list_del_init(&bd->bd_le.le_list); 235b3b94faaSDavid Teigland sdp->sd_log_num_buf--; 236b3b94faaSDavid Teigland 237a98ab220SSteven Whitehouse gfs2_unpin(sdp, bd->bd_bh, ai); 238b3b94faaSDavid Teigland } 239b3b94faaSDavid Teigland gfs2_assert_warn(sdp, !sdp->sd_log_num_buf); 240b3b94faaSDavid Teigland } 241b3b94faaSDavid Teigland 242b3b94faaSDavid Teigland static void buf_lo_before_scan(struct gfs2_jdesc *jd, 24355167622SAl Viro struct gfs2_log_header_host *head, int pass) 244b3b94faaSDavid Teigland { 245feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 246b3b94faaSDavid Teigland 247b3b94faaSDavid Teigland if (pass != 0) 248b3b94faaSDavid Teigland return; 249b3b94faaSDavid Teigland 250b3b94faaSDavid Teigland sdp->sd_found_blocks = 0; 251b3b94faaSDavid Teigland sdp->sd_replayed_blocks = 0; 252b3b94faaSDavid Teigland } 253b3b94faaSDavid Teigland 254b3b94faaSDavid Teigland static int buf_lo_scan_elements(struct gfs2_jdesc *jd, unsigned int start, 255b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld, __be64 *ptr, 256b3b94faaSDavid Teigland int pass) 257b3b94faaSDavid Teigland { 258feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(jd->jd_inode); 259feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 2605c676f6dSSteven Whitehouse struct gfs2_glock *gl = ip->i_gl; 261b3b94faaSDavid Teigland unsigned int blks = be32_to_cpu(ld->ld_data1); 262b3b94faaSDavid Teigland struct buffer_head *bh_log, *bh_ip; 263cd915493SSteven Whitehouse u64 blkno; 264b3b94faaSDavid Teigland int error = 0; 265b3b94faaSDavid Teigland 266b3b94faaSDavid Teigland if (pass != 1 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_METADATA) 267b3b94faaSDavid Teigland return 0; 268b3b94faaSDavid Teigland 269b3b94faaSDavid Teigland gfs2_replay_incr_blk(sdp, &start); 270b3b94faaSDavid Teigland 271b3b94faaSDavid Teigland for (; blks; gfs2_replay_incr_blk(sdp, &start), blks--) { 272b3b94faaSDavid Teigland blkno = be64_to_cpu(*ptr++); 273b3b94faaSDavid Teigland 274b3b94faaSDavid Teigland sdp->sd_found_blocks++; 275b3b94faaSDavid Teigland 276b3b94faaSDavid Teigland if (gfs2_revoke_check(sdp, blkno, start)) 277b3b94faaSDavid Teigland continue; 278b3b94faaSDavid Teigland 279b3b94faaSDavid Teigland error = gfs2_replay_read_block(jd, start, &bh_log); 280b3b94faaSDavid Teigland if (error) 281b3b94faaSDavid Teigland return error; 282b3b94faaSDavid Teigland 283b3b94faaSDavid Teigland bh_ip = gfs2_meta_new(gl, blkno); 284b3b94faaSDavid Teigland memcpy(bh_ip->b_data, bh_log->b_data, bh_log->b_size); 285b3b94faaSDavid Teigland 286b3b94faaSDavid Teigland if (gfs2_meta_check(sdp, bh_ip)) 287b3b94faaSDavid Teigland error = -EIO; 288b3b94faaSDavid Teigland else 289b3b94faaSDavid Teigland mark_buffer_dirty(bh_ip); 290b3b94faaSDavid Teigland 291b3b94faaSDavid Teigland brelse(bh_log); 292b3b94faaSDavid Teigland brelse(bh_ip); 293b3b94faaSDavid Teigland 294b3b94faaSDavid Teigland if (error) 295b3b94faaSDavid Teigland break; 296b3b94faaSDavid Teigland 297b3b94faaSDavid Teigland sdp->sd_replayed_blocks++; 298b3b94faaSDavid Teigland } 299b3b94faaSDavid Teigland 300b3b94faaSDavid Teigland return error; 301b3b94faaSDavid Teigland } 302b3b94faaSDavid Teigland 303b3b94faaSDavid Teigland static void buf_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass) 304b3b94faaSDavid Teigland { 305feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(jd->jd_inode); 306feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 307b3b94faaSDavid Teigland 308b3b94faaSDavid Teigland if (error) { 3097276b3b0SSteven Whitehouse gfs2_meta_sync(ip->i_gl); 310b3b94faaSDavid Teigland return; 311b3b94faaSDavid Teigland } 312b3b94faaSDavid Teigland if (pass != 1) 313b3b94faaSDavid Teigland return; 314b3b94faaSDavid Teigland 3157276b3b0SSteven Whitehouse gfs2_meta_sync(ip->i_gl); 316b3b94faaSDavid Teigland 317b3b94faaSDavid Teigland fs_info(sdp, "jid=%u: Replayed %u of %u blocks\n", 318b3b94faaSDavid Teigland jd->jd_jid, sdp->sd_replayed_blocks, sdp->sd_found_blocks); 319b3b94faaSDavid Teigland } 320b3b94faaSDavid Teigland 321b3b94faaSDavid Teigland static void revoke_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 322b3b94faaSDavid Teigland { 323b3b94faaSDavid Teigland struct gfs2_trans *tr; 324b3b94faaSDavid Teigland 3255c676f6dSSteven Whitehouse tr = current->journal_info; 326b3b94faaSDavid Teigland tr->tr_touched = 1; 327b3b94faaSDavid Teigland tr->tr_num_revoke++; 328b3b94faaSDavid Teigland sdp->sd_log_num_revoke++; 329b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_revoke); 330b3b94faaSDavid Teigland } 331b3b94faaSDavid Teigland 332b3b94faaSDavid Teigland static void revoke_lo_before_commit(struct gfs2_sbd *sdp) 333b3b94faaSDavid Teigland { 334b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld; 335b3b94faaSDavid Teigland struct gfs2_meta_header *mh; 336b3b94faaSDavid Teigland struct buffer_head *bh; 337b3b94faaSDavid Teigland unsigned int offset; 338b3b94faaSDavid Teigland struct list_head *head = &sdp->sd_log_le_revoke; 33982e86087SSteven Whitehouse struct gfs2_bufdata *bd; 340b3b94faaSDavid Teigland 341b3b94faaSDavid Teigland if (!sdp->sd_log_num_revoke) 342b3b94faaSDavid Teigland return; 343b3b94faaSDavid Teigland 34416615be1SSteven Whitehouse bh = gfs2_get_log_desc(sdp, GFS2_LOG_DESC_REVOKE); 34516615be1SSteven Whitehouse ld = bh_log_desc(bh); 346568f4c96SSteven Whitehouse ld->ld_length = cpu_to_be32(gfs2_struct2blk(sdp, sdp->sd_log_num_revoke, 347cd915493SSteven Whitehouse sizeof(u64))); 348b3b94faaSDavid Teigland ld->ld_data1 = cpu_to_be32(sdp->sd_log_num_revoke); 349b3b94faaSDavid Teigland offset = sizeof(struct gfs2_log_descriptor); 350b3b94faaSDavid Teigland 351b3b94faaSDavid Teigland while (!list_empty(head)) { 35282e86087SSteven Whitehouse bd = list_entry(head->next, struct gfs2_bufdata, bd_le.le_list); 35382e86087SSteven Whitehouse list_del_init(&bd->bd_le.le_list); 354b3b94faaSDavid Teigland sdp->sd_log_num_revoke--; 355b3b94faaSDavid Teigland 356cd915493SSteven Whitehouse if (offset + sizeof(u64) > sdp->sd_sb.sb_bsize) { 357721a9602SJens Axboe submit_bh(WRITE_SYNC, bh); 358b3b94faaSDavid Teigland 359b3b94faaSDavid Teigland bh = gfs2_log_get_buf(sdp); 360b3b94faaSDavid Teigland mh = (struct gfs2_meta_header *)bh->b_data; 361b3b94faaSDavid Teigland mh->mh_magic = cpu_to_be32(GFS2_MAGIC); 362e3167dedSSteven Whitehouse mh->mh_type = cpu_to_be32(GFS2_METATYPE_LB); 363e3167dedSSteven Whitehouse mh->mh_format = cpu_to_be32(GFS2_FORMAT_LB); 364b3b94faaSDavid Teigland offset = sizeof(struct gfs2_meta_header); 365b3b94faaSDavid Teigland } 366b3b94faaSDavid Teigland 36782e86087SSteven Whitehouse *(__be64 *)(bh->b_data + offset) = cpu_to_be64(bd->bd_blkno); 3680820ab51SSteven Whitehouse kmem_cache_free(gfs2_bufdata_cachep, bd); 369b3b94faaSDavid Teigland 370cd915493SSteven Whitehouse offset += sizeof(u64); 371b3b94faaSDavid Teigland } 372b3b94faaSDavid Teigland gfs2_assert_withdraw(sdp, !sdp->sd_log_num_revoke); 373b3b94faaSDavid Teigland 374721a9602SJens Axboe submit_bh(WRITE_SYNC, bh); 375b3b94faaSDavid Teigland } 376b3b94faaSDavid Teigland 377b3b94faaSDavid Teigland static void revoke_lo_before_scan(struct gfs2_jdesc *jd, 37855167622SAl Viro struct gfs2_log_header_host *head, int pass) 379b3b94faaSDavid Teigland { 380feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 381b3b94faaSDavid Teigland 382b3b94faaSDavid Teigland if (pass != 0) 383b3b94faaSDavid Teigland return; 384b3b94faaSDavid Teigland 385b3b94faaSDavid Teigland sdp->sd_found_revokes = 0; 386b3b94faaSDavid Teigland sdp->sd_replay_tail = head->lh_tail; 387b3b94faaSDavid Teigland } 388b3b94faaSDavid Teigland 389b3b94faaSDavid Teigland static int revoke_lo_scan_elements(struct gfs2_jdesc *jd, unsigned int start, 390b3b94faaSDavid Teigland struct gfs2_log_descriptor *ld, __be64 *ptr, 391b3b94faaSDavid Teigland int pass) 392b3b94faaSDavid Teigland { 393feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 394b3b94faaSDavid Teigland unsigned int blks = be32_to_cpu(ld->ld_length); 395b3b94faaSDavid Teigland unsigned int revokes = be32_to_cpu(ld->ld_data1); 396b3b94faaSDavid Teigland struct buffer_head *bh; 397b3b94faaSDavid Teigland unsigned int offset; 398cd915493SSteven Whitehouse u64 blkno; 399b3b94faaSDavid Teigland int first = 1; 400b3b94faaSDavid Teigland int error; 401b3b94faaSDavid Teigland 402b3b94faaSDavid Teigland if (pass != 0 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_REVOKE) 403b3b94faaSDavid Teigland return 0; 404b3b94faaSDavid Teigland 405b3b94faaSDavid Teigland offset = sizeof(struct gfs2_log_descriptor); 406b3b94faaSDavid Teigland 407b3b94faaSDavid Teigland for (; blks; gfs2_replay_incr_blk(sdp, &start), blks--) { 408b3b94faaSDavid Teigland error = gfs2_replay_read_block(jd, start, &bh); 409b3b94faaSDavid Teigland if (error) 410b3b94faaSDavid Teigland return error; 411b3b94faaSDavid Teigland 412b3b94faaSDavid Teigland if (!first) 413b3b94faaSDavid Teigland gfs2_metatype_check(sdp, bh, GFS2_METATYPE_LB); 414b3b94faaSDavid Teigland 415cd915493SSteven Whitehouse while (offset + sizeof(u64) <= sdp->sd_sb.sb_bsize) { 416b3b94faaSDavid Teigland blkno = be64_to_cpu(*(__be64 *)(bh->b_data + offset)); 417b3b94faaSDavid Teigland 418b3b94faaSDavid Teigland error = gfs2_revoke_add(sdp, blkno, start); 4193ad62e87SBob Peterson if (error < 0) { 4203ad62e87SBob Peterson brelse(bh); 421b3b94faaSDavid Teigland return error; 4223ad62e87SBob Peterson } 423b3b94faaSDavid Teigland else if (error) 424b3b94faaSDavid Teigland sdp->sd_found_revokes++; 425b3b94faaSDavid Teigland 426b3b94faaSDavid Teigland if (!--revokes) 427b3b94faaSDavid Teigland break; 428cd915493SSteven Whitehouse offset += sizeof(u64); 429b3b94faaSDavid Teigland } 430b3b94faaSDavid Teigland 431b3b94faaSDavid Teigland brelse(bh); 432b3b94faaSDavid Teigland offset = sizeof(struct gfs2_meta_header); 433b3b94faaSDavid Teigland first = 0; 434b3b94faaSDavid Teigland } 435b3b94faaSDavid Teigland 436b3b94faaSDavid Teigland return 0; 437b3b94faaSDavid Teigland } 438b3b94faaSDavid Teigland 439b3b94faaSDavid Teigland static void revoke_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass) 440b3b94faaSDavid Teigland { 441feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 442b3b94faaSDavid Teigland 443b3b94faaSDavid Teigland if (error) { 444b3b94faaSDavid Teigland gfs2_revoke_clean(sdp); 445b3b94faaSDavid Teigland return; 446b3b94faaSDavid Teigland } 447b3b94faaSDavid Teigland if (pass != 1) 448b3b94faaSDavid Teigland return; 449b3b94faaSDavid Teigland 450b3b94faaSDavid Teigland fs_info(sdp, "jid=%u: Found %u revoke tags\n", 451b3b94faaSDavid Teigland jd->jd_jid, sdp->sd_found_revokes); 452b3b94faaSDavid Teigland 453b3b94faaSDavid Teigland gfs2_revoke_clean(sdp); 454b3b94faaSDavid Teigland } 455b3b94faaSDavid Teigland 456b3b94faaSDavid Teigland static void rg_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 457b3b94faaSDavid Teigland { 458b3b94faaSDavid Teigland struct gfs2_rgrpd *rgd; 4595c676f6dSSteven Whitehouse struct gfs2_trans *tr = current->journal_info; 460b3b94faaSDavid Teigland 4615c676f6dSSteven Whitehouse tr->tr_touched = 1; 462b3b94faaSDavid Teigland 463b3b94faaSDavid Teigland rgd = container_of(le, struct gfs2_rgrpd, rd_le); 464b3b94faaSDavid Teigland 465b3b94faaSDavid Teigland gfs2_log_lock(sdp); 46668835625SBenjamin Marzinski if (!list_empty(&le->le_list)){ 46768835625SBenjamin Marzinski gfs2_log_unlock(sdp); 46868835625SBenjamin Marzinski return; 46968835625SBenjamin Marzinski } 47068835625SBenjamin Marzinski gfs2_rgrp_bh_hold(rgd); 471b3b94faaSDavid Teigland sdp->sd_log_num_rg++; 472b3b94faaSDavid Teigland list_add(&le->le_list, &sdp->sd_log_le_rg); 473b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 474b3b94faaSDavid Teigland } 475b3b94faaSDavid Teigland 476b3b94faaSDavid Teigland static void rg_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) 477b3b94faaSDavid Teigland { 478b3b94faaSDavid Teigland struct list_head *head = &sdp->sd_log_le_rg; 479b3b94faaSDavid Teigland struct gfs2_rgrpd *rgd; 480b3b94faaSDavid Teigland 481b3b94faaSDavid Teigland while (!list_empty(head)) { 482b3b94faaSDavid Teigland rgd = list_entry(head->next, struct gfs2_rgrpd, rd_le.le_list); 483b3b94faaSDavid Teigland list_del_init(&rgd->rd_le.le_list); 484b3b94faaSDavid Teigland sdp->sd_log_num_rg--; 485b3b94faaSDavid Teigland 486b3b94faaSDavid Teigland gfs2_rgrp_repolish_clones(rgd); 487b3b94faaSDavid Teigland gfs2_rgrp_bh_put(rgd); 488b3b94faaSDavid Teigland } 489b3b94faaSDavid Teigland gfs2_assert_warn(sdp, !sdp->sd_log_num_rg); 490b3b94faaSDavid Teigland } 491b3b94faaSDavid Teigland 49218ec7d5cSSteven Whitehouse /** 49318ec7d5cSSteven Whitehouse * databuf_lo_add - Add a databuf to the transaction. 49418ec7d5cSSteven Whitehouse * 49518ec7d5cSSteven Whitehouse * This is used in two distinct cases: 49618ec7d5cSSteven Whitehouse * i) In ordered write mode 49718ec7d5cSSteven Whitehouse * We put the data buffer on a list so that we can ensure that its 49818ec7d5cSSteven Whitehouse * synced to disk at the right time 49918ec7d5cSSteven Whitehouse * ii) In journaled data mode 50018ec7d5cSSteven Whitehouse * We need to journal the data block in the same way as metadata in 50118ec7d5cSSteven Whitehouse * the functions above. The difference is that here we have a tag 50218ec7d5cSSteven Whitehouse * which is two __be64's being the block number (as per meta data) 50318ec7d5cSSteven Whitehouse * and a flag which says whether the data block needs escaping or 50418ec7d5cSSteven Whitehouse * not. This means we need a new log entry for each 251 or so data 50518ec7d5cSSteven Whitehouse * blocks, which isn't an enormous overhead but twice as much as 50618ec7d5cSSteven Whitehouse * for normal metadata blocks. 50718ec7d5cSSteven Whitehouse */ 508b3b94faaSDavid Teigland static void databuf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) 509b3b94faaSDavid Teigland { 51018ec7d5cSSteven Whitehouse struct gfs2_bufdata *bd = container_of(le, struct gfs2_bufdata, bd_le); 5115c676f6dSSteven Whitehouse struct gfs2_trans *tr = current->journal_info; 51218ec7d5cSSteven Whitehouse struct address_space *mapping = bd->bd_bh->b_page->mapping; 513feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(mapping->host); 514b3b94faaSDavid Teigland 5159b9107a5SSteven Whitehouse lock_buffer(bd->bd_bh); 5168bd95727SSteven Whitehouse gfs2_log_lock(sdp); 5179ff8ec32SSteven Whitehouse if (tr) { 5189b9107a5SSteven Whitehouse if (!list_empty(&bd->bd_list_tr)) 5199b9107a5SSteven Whitehouse goto out; 52018ec7d5cSSteven Whitehouse tr->tr_touched = 1; 521773ed1a0SRobert Peterson if (gfs2_is_jdata(ip)) { 52218ec7d5cSSteven Whitehouse tr->tr_num_buf++; 52318ec7d5cSSteven Whitehouse list_add(&bd->bd_list_tr, &tr->tr_list_buf); 524773ed1a0SRobert Peterson } 5259ff8ec32SSteven Whitehouse } 526ddf4b426SBenjamin Marzinski if (!list_empty(&le->le_list)) 5279b9107a5SSteven Whitehouse goto out; 5282332c443SRobert Peterson 5292bcd610dSSteven Whitehouse set_bit(GLF_LFLUSH, &bd->bd_gl->gl_flags); 5302bcd610dSSteven Whitehouse set_bit(GLF_DIRTY, &bd->bd_gl->gl_flags); 5312332c443SRobert Peterson if (gfs2_is_jdata(ip)) { 5322332c443SRobert Peterson gfs2_pin(sdp, bd->bd_bh); 5332332c443SRobert Peterson tr->tr_num_databuf_new++; 534bdcb8856SBob Peterson sdp->sd_log_num_databuf++; 535e5884636SDave Chinner list_add_tail(&le->le_list, &sdp->sd_log_le_databuf); 536d7b616e2SSteven Whitehouse } else { 537e5884636SDave Chinner list_add_tail(&le->le_list, &sdp->sd_log_le_ordered); 538d7b616e2SSteven Whitehouse } 5399b9107a5SSteven Whitehouse out: 540b3b94faaSDavid Teigland gfs2_log_unlock(sdp); 5419b9107a5SSteven Whitehouse unlock_buffer(bd->bd_bh); 542b3b94faaSDavid Teigland } 543b3b94faaSDavid Teigland 54416615be1SSteven Whitehouse static void gfs2_check_magic(struct buffer_head *bh) 54518ec7d5cSSteven Whitehouse { 54618ec7d5cSSteven Whitehouse void *kaddr; 54718ec7d5cSSteven Whitehouse __be32 *ptr; 54818ec7d5cSSteven Whitehouse 54916615be1SSteven Whitehouse clear_buffer_escaped(bh); 55016615be1SSteven Whitehouse kaddr = kmap_atomic(bh->b_page, KM_USER0); 55118ec7d5cSSteven Whitehouse ptr = kaddr + bh_offset(bh); 55218ec7d5cSSteven Whitehouse if (*ptr == cpu_to_be32(GFS2_MAGIC)) 55316615be1SSteven Whitehouse set_buffer_escaped(bh); 554c312c4fdSRussell Cattelan kunmap_atomic(kaddr, KM_USER0); 55516615be1SSteven Whitehouse } 55618ec7d5cSSteven Whitehouse 55716615be1SSteven Whitehouse static void gfs2_write_blocks(struct gfs2_sbd *sdp, struct buffer_head *bh, 55816615be1SSteven Whitehouse struct list_head *list, struct list_head *done, 55916615be1SSteven Whitehouse unsigned int n) 56016615be1SSteven Whitehouse { 56116615be1SSteven Whitehouse struct buffer_head *bh1; 56216615be1SSteven Whitehouse struct gfs2_log_descriptor *ld; 56316615be1SSteven Whitehouse struct gfs2_bufdata *bd; 56416615be1SSteven Whitehouse __be64 *ptr; 56516615be1SSteven Whitehouse 56616615be1SSteven Whitehouse if (!bh) 56716615be1SSteven Whitehouse return; 56816615be1SSteven Whitehouse 56916615be1SSteven Whitehouse ld = bh_log_desc(bh); 57016615be1SSteven Whitehouse ld->ld_length = cpu_to_be32(n + 1); 57116615be1SSteven Whitehouse ld->ld_data1 = cpu_to_be32(n); 57216615be1SSteven Whitehouse 57316615be1SSteven Whitehouse ptr = bh_log_ptr(bh); 57416615be1SSteven Whitehouse 57516615be1SSteven Whitehouse get_bh(bh); 576721a9602SJens Axboe submit_bh(WRITE_SYNC, bh); 57716615be1SSteven Whitehouse gfs2_log_lock(sdp); 57816615be1SSteven Whitehouse while(!list_empty(list)) { 57916615be1SSteven Whitehouse bd = list_entry(list->next, struct gfs2_bufdata, bd_le.le_list); 58016615be1SSteven Whitehouse list_move_tail(&bd->bd_le.le_list, done); 58116615be1SSteven Whitehouse get_bh(bd->bd_bh); 58216615be1SSteven Whitehouse while (be64_to_cpu(*ptr) != bd->bd_bh->b_blocknr) { 58316615be1SSteven Whitehouse gfs2_log_incr_head(sdp); 58416615be1SSteven Whitehouse ptr += 2; 58516615be1SSteven Whitehouse } 58616615be1SSteven Whitehouse gfs2_log_unlock(sdp); 58716615be1SSteven Whitehouse lock_buffer(bd->bd_bh); 58816615be1SSteven Whitehouse if (buffer_escaped(bd->bd_bh)) { 58916615be1SSteven Whitehouse void *kaddr; 59016615be1SSteven Whitehouse bh1 = gfs2_log_get_buf(sdp); 59116615be1SSteven Whitehouse kaddr = kmap_atomic(bd->bd_bh->b_page, KM_USER0); 59216615be1SSteven Whitehouse memcpy(bh1->b_data, kaddr + bh_offset(bd->bd_bh), 59316615be1SSteven Whitehouse bh1->b_size); 59416615be1SSteven Whitehouse kunmap_atomic(kaddr, KM_USER0); 59516615be1SSteven Whitehouse *(__be32 *)bh1->b_data = 0; 59616615be1SSteven Whitehouse clear_buffer_escaped(bd->bd_bh); 59716615be1SSteven Whitehouse unlock_buffer(bd->bd_bh); 59816615be1SSteven Whitehouse brelse(bd->bd_bh); 59916615be1SSteven Whitehouse } else { 60016615be1SSteven Whitehouse bh1 = gfs2_log_fake_buf(sdp, bd->bd_bh); 60116615be1SSteven Whitehouse } 602721a9602SJens Axboe submit_bh(WRITE_SYNC, bh1); 60316615be1SSteven Whitehouse gfs2_log_lock(sdp); 60416615be1SSteven Whitehouse ptr += 2; 60516615be1SSteven Whitehouse } 60616615be1SSteven Whitehouse gfs2_log_unlock(sdp); 60716615be1SSteven Whitehouse brelse(bh); 60818ec7d5cSSteven Whitehouse } 60918ec7d5cSSteven Whitehouse 61018ec7d5cSSteven Whitehouse /** 61118ec7d5cSSteven Whitehouse * databuf_lo_before_commit - Scan the data buffers, writing as we go 61218ec7d5cSSteven Whitehouse * 61318ec7d5cSSteven Whitehouse */ 614d7b616e2SSteven Whitehouse 615b3b94faaSDavid Teigland static void databuf_lo_before_commit(struct gfs2_sbd *sdp) 616b3b94faaSDavid Teigland { 61716615be1SSteven Whitehouse struct gfs2_bufdata *bd = NULL; 61816615be1SSteven Whitehouse struct buffer_head *bh = NULL; 61916615be1SSteven Whitehouse unsigned int n = 0; 62016615be1SSteven Whitehouse __be64 *ptr = NULL, *end = NULL; 62116615be1SSteven Whitehouse LIST_HEAD(processed); 62216615be1SSteven Whitehouse LIST_HEAD(in_progress); 623b3b94faaSDavid Teigland 624f55ab26aSSteven Whitehouse gfs2_log_lock(sdp); 62516615be1SSteven Whitehouse while (!list_empty(&sdp->sd_log_le_databuf)) { 62616615be1SSteven Whitehouse if (ptr == end) { 627f55ab26aSSteven Whitehouse gfs2_log_unlock(sdp); 62816615be1SSteven Whitehouse gfs2_write_blocks(sdp, bh, &in_progress, &processed, n); 629d7b616e2SSteven Whitehouse n = 0; 63016615be1SSteven Whitehouse bh = gfs2_get_log_desc(sdp, GFS2_LOG_DESC_JDATA); 63116615be1SSteven Whitehouse ptr = bh_log_ptr(bh); 63216615be1SSteven Whitehouse end = bh_ptr_end(bh) - 1; 633f55ab26aSSteven Whitehouse gfs2_log_lock(sdp); 63418ec7d5cSSteven Whitehouse continue; 63516615be1SSteven Whitehouse } 63616615be1SSteven Whitehouse bd = list_entry(sdp->sd_log_le_databuf.next, struct gfs2_bufdata, bd_le.le_list); 63716615be1SSteven Whitehouse list_move_tail(&bd->bd_le.le_list, &in_progress); 63816615be1SSteven Whitehouse gfs2_check_magic(bd->bd_bh); 63916615be1SSteven Whitehouse *ptr++ = cpu_to_be64(bd->bd_bh->b_blocknr); 64016615be1SSteven Whitehouse *ptr++ = cpu_to_be64(buffer_escaped(bh) ? 1 : 0); 64116615be1SSteven Whitehouse n++; 64216615be1SSteven Whitehouse } 643f55ab26aSSteven Whitehouse gfs2_log_unlock(sdp); 64416615be1SSteven Whitehouse gfs2_write_blocks(sdp, bh, &in_progress, &processed, n); 645f55ab26aSSteven Whitehouse gfs2_log_lock(sdp); 64616615be1SSteven Whitehouse list_splice(&processed, &sdp->sd_log_le_databuf); 647f55ab26aSSteven Whitehouse gfs2_log_unlock(sdp); 648b3b94faaSDavid Teigland } 649b3b94faaSDavid Teigland 65018ec7d5cSSteven Whitehouse static int databuf_lo_scan_elements(struct gfs2_jdesc *jd, unsigned int start, 65118ec7d5cSSteven Whitehouse struct gfs2_log_descriptor *ld, 65218ec7d5cSSteven Whitehouse __be64 *ptr, int pass) 65318ec7d5cSSteven Whitehouse { 654feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(jd->jd_inode); 655feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 6565c676f6dSSteven Whitehouse struct gfs2_glock *gl = ip->i_gl; 65718ec7d5cSSteven Whitehouse unsigned int blks = be32_to_cpu(ld->ld_data1); 65818ec7d5cSSteven Whitehouse struct buffer_head *bh_log, *bh_ip; 659cd915493SSteven Whitehouse u64 blkno; 660cd915493SSteven Whitehouse u64 esc; 66118ec7d5cSSteven Whitehouse int error = 0; 66218ec7d5cSSteven Whitehouse 66318ec7d5cSSteven Whitehouse if (pass != 1 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_JDATA) 66418ec7d5cSSteven Whitehouse return 0; 66518ec7d5cSSteven Whitehouse 66618ec7d5cSSteven Whitehouse gfs2_replay_incr_blk(sdp, &start); 66718ec7d5cSSteven Whitehouse for (; blks; gfs2_replay_incr_blk(sdp, &start), blks--) { 66818ec7d5cSSteven Whitehouse blkno = be64_to_cpu(*ptr++); 66918ec7d5cSSteven Whitehouse esc = be64_to_cpu(*ptr++); 67018ec7d5cSSteven Whitehouse 67118ec7d5cSSteven Whitehouse sdp->sd_found_blocks++; 67218ec7d5cSSteven Whitehouse 67318ec7d5cSSteven Whitehouse if (gfs2_revoke_check(sdp, blkno, start)) 67418ec7d5cSSteven Whitehouse continue; 67518ec7d5cSSteven Whitehouse 67618ec7d5cSSteven Whitehouse error = gfs2_replay_read_block(jd, start, &bh_log); 67718ec7d5cSSteven Whitehouse if (error) 67818ec7d5cSSteven Whitehouse return error; 67918ec7d5cSSteven Whitehouse 68018ec7d5cSSteven Whitehouse bh_ip = gfs2_meta_new(gl, blkno); 68118ec7d5cSSteven Whitehouse memcpy(bh_ip->b_data, bh_log->b_data, bh_log->b_size); 68218ec7d5cSSteven Whitehouse 68318ec7d5cSSteven Whitehouse /* Unescape */ 68418ec7d5cSSteven Whitehouse if (esc) { 68518ec7d5cSSteven Whitehouse __be32 *eptr = (__be32 *)bh_ip->b_data; 68618ec7d5cSSteven Whitehouse *eptr = cpu_to_be32(GFS2_MAGIC); 68718ec7d5cSSteven Whitehouse } 68818ec7d5cSSteven Whitehouse mark_buffer_dirty(bh_ip); 68918ec7d5cSSteven Whitehouse 69018ec7d5cSSteven Whitehouse brelse(bh_log); 69118ec7d5cSSteven Whitehouse brelse(bh_ip); 69218ec7d5cSSteven Whitehouse if (error) 69318ec7d5cSSteven Whitehouse break; 69418ec7d5cSSteven Whitehouse 69518ec7d5cSSteven Whitehouse sdp->sd_replayed_blocks++; 69618ec7d5cSSteven Whitehouse } 69718ec7d5cSSteven Whitehouse 69818ec7d5cSSteven Whitehouse return error; 69918ec7d5cSSteven Whitehouse } 70018ec7d5cSSteven Whitehouse 70118ec7d5cSSteven Whitehouse /* FIXME: sort out accounting for log blocks etc. */ 70218ec7d5cSSteven Whitehouse 70318ec7d5cSSteven Whitehouse static void databuf_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass) 70418ec7d5cSSteven Whitehouse { 705feaa7bbaSSteven Whitehouse struct gfs2_inode *ip = GFS2_I(jd->jd_inode); 706feaa7bbaSSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode); 70718ec7d5cSSteven Whitehouse 70818ec7d5cSSteven Whitehouse if (error) { 7097276b3b0SSteven Whitehouse gfs2_meta_sync(ip->i_gl); 71018ec7d5cSSteven Whitehouse return; 71118ec7d5cSSteven Whitehouse } 71218ec7d5cSSteven Whitehouse if (pass != 1) 71318ec7d5cSSteven Whitehouse return; 71418ec7d5cSSteven Whitehouse 71518ec7d5cSSteven Whitehouse /* data sync? */ 7167276b3b0SSteven Whitehouse gfs2_meta_sync(ip->i_gl); 71718ec7d5cSSteven Whitehouse 71818ec7d5cSSteven Whitehouse fs_info(sdp, "jid=%u: Replayed %u of %u data blocks\n", 71918ec7d5cSSteven Whitehouse jd->jd_jid, sdp->sd_replayed_blocks, sdp->sd_found_blocks); 72018ec7d5cSSteven Whitehouse } 72118ec7d5cSSteven Whitehouse 72218ec7d5cSSteven Whitehouse static void databuf_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) 72318ec7d5cSSteven Whitehouse { 72418ec7d5cSSteven Whitehouse struct list_head *head = &sdp->sd_log_le_databuf; 72518ec7d5cSSteven Whitehouse struct gfs2_bufdata *bd; 72618ec7d5cSSteven Whitehouse 72718ec7d5cSSteven Whitehouse while (!list_empty(head)) { 72818ec7d5cSSteven Whitehouse bd = list_entry(head->next, struct gfs2_bufdata, bd_le.le_list); 729b8e1aabfSSteven Whitehouse list_del_init(&bd->bd_le.le_list); 73018ec7d5cSSteven Whitehouse sdp->sd_log_num_databuf--; 73118ec7d5cSSteven Whitehouse gfs2_unpin(sdp, bd->bd_bh, ai); 73218ec7d5cSSteven Whitehouse } 73318ec7d5cSSteven Whitehouse gfs2_assert_warn(sdp, !sdp->sd_log_num_databuf); 73418ec7d5cSSteven Whitehouse } 73518ec7d5cSSteven Whitehouse 73618ec7d5cSSteven Whitehouse 737b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_buf_lops = { 738b3b94faaSDavid Teigland .lo_add = buf_lo_add, 739b3b94faaSDavid Teigland .lo_before_commit = buf_lo_before_commit, 740b3b94faaSDavid Teigland .lo_after_commit = buf_lo_after_commit, 741b3b94faaSDavid Teigland .lo_before_scan = buf_lo_before_scan, 742b3b94faaSDavid Teigland .lo_scan_elements = buf_lo_scan_elements, 743b3b94faaSDavid Teigland .lo_after_scan = buf_lo_after_scan, 744ea67eedbSSteven Whitehouse .lo_name = "buf", 745b3b94faaSDavid Teigland }; 746b3b94faaSDavid Teigland 747b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_revoke_lops = { 748b3b94faaSDavid Teigland .lo_add = revoke_lo_add, 749b3b94faaSDavid Teigland .lo_before_commit = revoke_lo_before_commit, 750b3b94faaSDavid Teigland .lo_before_scan = revoke_lo_before_scan, 751b3b94faaSDavid Teigland .lo_scan_elements = revoke_lo_scan_elements, 752b3b94faaSDavid Teigland .lo_after_scan = revoke_lo_after_scan, 753ea67eedbSSteven Whitehouse .lo_name = "revoke", 754b3b94faaSDavid Teigland }; 755b3b94faaSDavid Teigland 756b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_rg_lops = { 757b3b94faaSDavid Teigland .lo_add = rg_lo_add, 758b3b94faaSDavid Teigland .lo_after_commit = rg_lo_after_commit, 759ea67eedbSSteven Whitehouse .lo_name = "rg", 760b3b94faaSDavid Teigland }; 761b3b94faaSDavid Teigland 762b09e593dSSteven Whitehouse const struct gfs2_log_operations gfs2_databuf_lops = { 763b3b94faaSDavid Teigland .lo_add = databuf_lo_add, 764b3b94faaSDavid Teigland .lo_before_commit = databuf_lo_before_commit, 76518ec7d5cSSteven Whitehouse .lo_after_commit = databuf_lo_after_commit, 76618ec7d5cSSteven Whitehouse .lo_scan_elements = databuf_lo_scan_elements, 76718ec7d5cSSteven Whitehouse .lo_after_scan = databuf_lo_after_scan, 768ea67eedbSSteven Whitehouse .lo_name = "databuf", 769b3b94faaSDavid Teigland }; 770b3b94faaSDavid Teigland 771b09e593dSSteven Whitehouse const struct gfs2_log_operations *gfs2_log_ops[] = { 772b3b94faaSDavid Teigland &gfs2_databuf_lops, 77316615be1SSteven Whitehouse &gfs2_buf_lops, 77416615be1SSteven Whitehouse &gfs2_rg_lops, 77516615be1SSteven Whitehouse &gfs2_revoke_lops, 776ea67eedbSSteven Whitehouse NULL, 777b3b94faaSDavid Teigland }; 778b3b94faaSDavid Teigland 779