15880f2d7SDarrick J. Wong /* 25880f2d7SDarrick J. Wong * Copyright (C) 2016 Oracle. All Rights Reserved. 35880f2d7SDarrick J. Wong * 45880f2d7SDarrick J. Wong * Author: Darrick J. Wong <darrick.wong@oracle.com> 55880f2d7SDarrick J. Wong * 65880f2d7SDarrick J. Wong * This program is free software; you can redistribute it and/or 75880f2d7SDarrick J. Wong * modify it under the terms of the GNU General Public License 85880f2d7SDarrick J. Wong * as published by the Free Software Foundation; either version 2 95880f2d7SDarrick J. Wong * of the License, or (at your option) any later version. 105880f2d7SDarrick J. Wong * 115880f2d7SDarrick J. Wong * This program is distributed in the hope that it would be useful, 125880f2d7SDarrick J. Wong * but WITHOUT ANY WARRANTY; without even the implied warranty of 135880f2d7SDarrick J. Wong * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 145880f2d7SDarrick J. Wong * GNU General Public License for more details. 155880f2d7SDarrick J. Wong * 165880f2d7SDarrick J. Wong * You should have received a copy of the GNU General Public License 175880f2d7SDarrick J. Wong * along with this program; if not, write the Free Software Foundation, 185880f2d7SDarrick J. Wong * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. 195880f2d7SDarrick J. Wong */ 205880f2d7SDarrick J. Wong #include "xfs.h" 215880f2d7SDarrick J. Wong #include "xfs_fs.h" 225880f2d7SDarrick J. Wong #include "xfs_format.h" 235880f2d7SDarrick J. Wong #include "xfs_log_format.h" 245880f2d7SDarrick J. Wong #include "xfs_trans_resv.h" 259e88b5d8SDarrick J. Wong #include "xfs_bit.h" 265880f2d7SDarrick J. Wong #include "xfs_mount.h" 279c194644SDarrick J. Wong #include "xfs_defer.h" 285880f2d7SDarrick J. Wong #include "xfs_trans.h" 295880f2d7SDarrick J. Wong #include "xfs_trans_priv.h" 305880f2d7SDarrick J. Wong #include "xfs_buf_item.h" 315880f2d7SDarrick J. Wong #include "xfs_rmap_item.h" 325880f2d7SDarrick J. Wong #include "xfs_log.h" 339c194644SDarrick J. Wong #include "xfs_rmap.h" 345880f2d7SDarrick J. Wong 355880f2d7SDarrick J. Wong 365880f2d7SDarrick J. Wong kmem_zone_t *xfs_rui_zone; 375880f2d7SDarrick J. Wong kmem_zone_t *xfs_rud_zone; 385880f2d7SDarrick J. Wong 395880f2d7SDarrick J. Wong static inline struct xfs_rui_log_item *RUI_ITEM(struct xfs_log_item *lip) 405880f2d7SDarrick J. Wong { 415880f2d7SDarrick J. Wong return container_of(lip, struct xfs_rui_log_item, rui_item); 425880f2d7SDarrick J. Wong } 435880f2d7SDarrick J. Wong 445880f2d7SDarrick J. Wong void 455880f2d7SDarrick J. Wong xfs_rui_item_free( 465880f2d7SDarrick J. Wong struct xfs_rui_log_item *ruip) 475880f2d7SDarrick J. Wong { 485880f2d7SDarrick J. Wong if (ruip->rui_format.rui_nextents > XFS_RUI_MAX_FAST_EXTENTS) 495880f2d7SDarrick J. Wong kmem_free(ruip); 505880f2d7SDarrick J. Wong else 515880f2d7SDarrick J. Wong kmem_zone_free(xfs_rui_zone, ruip); 525880f2d7SDarrick J. Wong } 535880f2d7SDarrick J. Wong 545880f2d7SDarrick J. Wong STATIC void 555880f2d7SDarrick J. Wong xfs_rui_item_size( 565880f2d7SDarrick J. Wong struct xfs_log_item *lip, 575880f2d7SDarrick J. Wong int *nvecs, 585880f2d7SDarrick J. Wong int *nbytes) 595880f2d7SDarrick J. Wong { 60cd00158cSDarrick J. Wong struct xfs_rui_log_item *ruip = RUI_ITEM(lip); 61cd00158cSDarrick J. Wong 625880f2d7SDarrick J. Wong *nvecs += 1; 63cd00158cSDarrick J. Wong *nbytes += xfs_rui_log_format_sizeof(ruip->rui_format.rui_nextents); 645880f2d7SDarrick J. Wong } 655880f2d7SDarrick J. Wong 665880f2d7SDarrick J. Wong /* 675880f2d7SDarrick J. Wong * This is called to fill in the vector of log iovecs for the 685880f2d7SDarrick J. Wong * given rui log item. We use only 1 iovec, and we point that 695880f2d7SDarrick J. Wong * at the rui_log_format structure embedded in the rui item. 705880f2d7SDarrick J. Wong * It is at this point that we assert that all of the extent 715880f2d7SDarrick J. Wong * slots in the rui item have been filled. 725880f2d7SDarrick J. Wong */ 735880f2d7SDarrick J. Wong STATIC void 745880f2d7SDarrick J. Wong xfs_rui_item_format( 755880f2d7SDarrick J. Wong struct xfs_log_item *lip, 765880f2d7SDarrick J. Wong struct xfs_log_vec *lv) 775880f2d7SDarrick J. Wong { 785880f2d7SDarrick J. Wong struct xfs_rui_log_item *ruip = RUI_ITEM(lip); 795880f2d7SDarrick J. Wong struct xfs_log_iovec *vecp = NULL; 805880f2d7SDarrick J. Wong 815880f2d7SDarrick J. Wong ASSERT(atomic_read(&ruip->rui_next_extent) == 825880f2d7SDarrick J. Wong ruip->rui_format.rui_nextents); 835880f2d7SDarrick J. Wong 845880f2d7SDarrick J. Wong ruip->rui_format.rui_type = XFS_LI_RUI; 855880f2d7SDarrick J. Wong ruip->rui_format.rui_size = 1; 865880f2d7SDarrick J. Wong 875880f2d7SDarrick J. Wong xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_RUI_FORMAT, &ruip->rui_format, 88cd00158cSDarrick J. Wong xfs_rui_log_format_sizeof(ruip->rui_format.rui_nextents)); 895880f2d7SDarrick J. Wong } 905880f2d7SDarrick J. Wong 915880f2d7SDarrick J. Wong /* 925880f2d7SDarrick J. Wong * Pinning has no meaning for an rui item, so just return. 935880f2d7SDarrick J. Wong */ 945880f2d7SDarrick J. Wong STATIC void 955880f2d7SDarrick J. Wong xfs_rui_item_pin( 965880f2d7SDarrick J. Wong struct xfs_log_item *lip) 975880f2d7SDarrick J. Wong { 985880f2d7SDarrick J. Wong } 995880f2d7SDarrick J. Wong 1005880f2d7SDarrick J. Wong /* 1015880f2d7SDarrick J. Wong * The unpin operation is the last place an RUI is manipulated in the log. It is 1025880f2d7SDarrick J. Wong * either inserted in the AIL or aborted in the event of a log I/O error. In 1035880f2d7SDarrick J. Wong * either case, the RUI transaction has been successfully committed to make it 1045880f2d7SDarrick J. Wong * this far. Therefore, we expect whoever committed the RUI to either construct 1055880f2d7SDarrick J. Wong * and commit the RUD or drop the RUD's reference in the event of error. Simply 1065880f2d7SDarrick J. Wong * drop the log's RUI reference now that the log is done with it. 1075880f2d7SDarrick J. Wong */ 1085880f2d7SDarrick J. Wong STATIC void 1095880f2d7SDarrick J. Wong xfs_rui_item_unpin( 1105880f2d7SDarrick J. Wong struct xfs_log_item *lip, 1115880f2d7SDarrick J. Wong int remove) 1125880f2d7SDarrick J. Wong { 1135880f2d7SDarrick J. Wong struct xfs_rui_log_item *ruip = RUI_ITEM(lip); 1145880f2d7SDarrick J. Wong 1155880f2d7SDarrick J. Wong xfs_rui_release(ruip); 1165880f2d7SDarrick J. Wong } 1175880f2d7SDarrick J. Wong 1185880f2d7SDarrick J. Wong /* 1195880f2d7SDarrick J. Wong * RUI items have no locking or pushing. However, since RUIs are pulled from 1205880f2d7SDarrick J. Wong * the AIL when their corresponding RUDs are committed to disk, their situation 1215880f2d7SDarrick J. Wong * is very similar to being pinned. Return XFS_ITEM_PINNED so that the caller 1225880f2d7SDarrick J. Wong * will eventually flush the log. This should help in getting the RUI out of 1235880f2d7SDarrick J. Wong * the AIL. 1245880f2d7SDarrick J. Wong */ 1255880f2d7SDarrick J. Wong STATIC uint 1265880f2d7SDarrick J. Wong xfs_rui_item_push( 1275880f2d7SDarrick J. Wong struct xfs_log_item *lip, 1285880f2d7SDarrick J. Wong struct list_head *buffer_list) 1295880f2d7SDarrick J. Wong { 1305880f2d7SDarrick J. Wong return XFS_ITEM_PINNED; 1315880f2d7SDarrick J. Wong } 1325880f2d7SDarrick J. Wong 1335880f2d7SDarrick J. Wong /* 1345880f2d7SDarrick J. Wong * The RUI has been either committed or aborted if the transaction has been 1355880f2d7SDarrick J. Wong * cancelled. If the transaction was cancelled, an RUD isn't going to be 1365880f2d7SDarrick J. Wong * constructed and thus we free the RUI here directly. 1375880f2d7SDarrick J. Wong */ 1385880f2d7SDarrick J. Wong STATIC void 1395880f2d7SDarrick J. Wong xfs_rui_item_unlock( 1405880f2d7SDarrick J. Wong struct xfs_log_item *lip) 1415880f2d7SDarrick J. Wong { 1425880f2d7SDarrick J. Wong if (lip->li_flags & XFS_LI_ABORTED) 1435880f2d7SDarrick J. Wong xfs_rui_item_free(RUI_ITEM(lip)); 1445880f2d7SDarrick J. Wong } 1455880f2d7SDarrick J. Wong 1465880f2d7SDarrick J. Wong /* 1475880f2d7SDarrick J. Wong * The RUI is logged only once and cannot be moved in the log, so simply return 1485880f2d7SDarrick J. Wong * the lsn at which it's been logged. 1495880f2d7SDarrick J. Wong */ 1505880f2d7SDarrick J. Wong STATIC xfs_lsn_t 1515880f2d7SDarrick J. Wong xfs_rui_item_committed( 1525880f2d7SDarrick J. Wong struct xfs_log_item *lip, 1535880f2d7SDarrick J. Wong xfs_lsn_t lsn) 1545880f2d7SDarrick J. Wong { 1555880f2d7SDarrick J. Wong return lsn; 1565880f2d7SDarrick J. Wong } 1575880f2d7SDarrick J. Wong 1585880f2d7SDarrick J. Wong /* 1595880f2d7SDarrick J. Wong * The RUI dependency tracking op doesn't do squat. It can't because 1605880f2d7SDarrick J. Wong * it doesn't know where the free extent is coming from. The dependency 1615880f2d7SDarrick J. Wong * tracking has to be handled by the "enclosing" metadata object. For 1625880f2d7SDarrick J. Wong * example, for inodes, the inode is locked throughout the extent freeing 1635880f2d7SDarrick J. Wong * so the dependency should be recorded there. 1645880f2d7SDarrick J. Wong */ 1655880f2d7SDarrick J. Wong STATIC void 1665880f2d7SDarrick J. Wong xfs_rui_item_committing( 1675880f2d7SDarrick J. Wong struct xfs_log_item *lip, 1685880f2d7SDarrick J. Wong xfs_lsn_t lsn) 1695880f2d7SDarrick J. Wong { 1705880f2d7SDarrick J. Wong } 1715880f2d7SDarrick J. Wong 1725880f2d7SDarrick J. Wong /* 1735880f2d7SDarrick J. Wong * This is the ops vector shared by all rui log items. 1745880f2d7SDarrick J. Wong */ 1755880f2d7SDarrick J. Wong static const struct xfs_item_ops xfs_rui_item_ops = { 1765880f2d7SDarrick J. Wong .iop_size = xfs_rui_item_size, 1775880f2d7SDarrick J. Wong .iop_format = xfs_rui_item_format, 1785880f2d7SDarrick J. Wong .iop_pin = xfs_rui_item_pin, 1795880f2d7SDarrick J. Wong .iop_unpin = xfs_rui_item_unpin, 1805880f2d7SDarrick J. Wong .iop_unlock = xfs_rui_item_unlock, 1815880f2d7SDarrick J. Wong .iop_committed = xfs_rui_item_committed, 1825880f2d7SDarrick J. Wong .iop_push = xfs_rui_item_push, 1835880f2d7SDarrick J. Wong .iop_committing = xfs_rui_item_committing, 1845880f2d7SDarrick J. Wong }; 1855880f2d7SDarrick J. Wong 1865880f2d7SDarrick J. Wong /* 1875880f2d7SDarrick J. Wong * Allocate and initialize an rui item with the given number of extents. 1885880f2d7SDarrick J. Wong */ 1895880f2d7SDarrick J. Wong struct xfs_rui_log_item * 1905880f2d7SDarrick J. Wong xfs_rui_init( 1915880f2d7SDarrick J. Wong struct xfs_mount *mp, 1925880f2d7SDarrick J. Wong uint nextents) 1935880f2d7SDarrick J. Wong 1945880f2d7SDarrick J. Wong { 1955880f2d7SDarrick J. Wong struct xfs_rui_log_item *ruip; 1965880f2d7SDarrick J. Wong 1975880f2d7SDarrick J. Wong ASSERT(nextents > 0); 198cd00158cSDarrick J. Wong if (nextents > XFS_RUI_MAX_FAST_EXTENTS) 199cd00158cSDarrick J. Wong ruip = kmem_zalloc(xfs_rui_log_item_sizeof(nextents), KM_SLEEP); 200cd00158cSDarrick J. Wong else 2015880f2d7SDarrick J. Wong ruip = kmem_zone_zalloc(xfs_rui_zone, KM_SLEEP); 2025880f2d7SDarrick J. Wong 2035880f2d7SDarrick J. Wong xfs_log_item_init(mp, &ruip->rui_item, XFS_LI_RUI, &xfs_rui_item_ops); 2045880f2d7SDarrick J. Wong ruip->rui_format.rui_nextents = nextents; 2055880f2d7SDarrick J. Wong ruip->rui_format.rui_id = (uintptr_t)(void *)ruip; 2065880f2d7SDarrick J. Wong atomic_set(&ruip->rui_next_extent, 0); 2075880f2d7SDarrick J. Wong atomic_set(&ruip->rui_refcount, 2); 2085880f2d7SDarrick J. Wong 2095880f2d7SDarrick J. Wong return ruip; 2105880f2d7SDarrick J. Wong } 2115880f2d7SDarrick J. Wong 2125880f2d7SDarrick J. Wong /* 2135880f2d7SDarrick J. Wong * Copy an RUI format buffer from the given buf, and into the destination 2145880f2d7SDarrick J. Wong * RUI format structure. The RUI/RUD items were designed not to need any 2155880f2d7SDarrick J. Wong * special alignment handling. 2165880f2d7SDarrick J. Wong */ 2175880f2d7SDarrick J. Wong int 2185880f2d7SDarrick J. Wong xfs_rui_copy_format( 2195880f2d7SDarrick J. Wong struct xfs_log_iovec *buf, 2205880f2d7SDarrick J. Wong struct xfs_rui_log_format *dst_rui_fmt) 2215880f2d7SDarrick J. Wong { 2225880f2d7SDarrick J. Wong struct xfs_rui_log_format *src_rui_fmt; 2235880f2d7SDarrick J. Wong uint len; 2245880f2d7SDarrick J. Wong 2255880f2d7SDarrick J. Wong src_rui_fmt = buf->i_addr; 226cd00158cSDarrick J. Wong len = xfs_rui_log_format_sizeof(src_rui_fmt->rui_nextents); 2275880f2d7SDarrick J. Wong 2285880f2d7SDarrick J. Wong if (buf->i_len != len) 2295880f2d7SDarrick J. Wong return -EFSCORRUPTED; 2305880f2d7SDarrick J. Wong 231cd00158cSDarrick J. Wong memcpy(dst_rui_fmt, src_rui_fmt, len); 2325880f2d7SDarrick J. Wong return 0; 2335880f2d7SDarrick J. Wong } 2345880f2d7SDarrick J. Wong 2355880f2d7SDarrick J. Wong /* 2365880f2d7SDarrick J. Wong * Freeing the RUI requires that we remove it from the AIL if it has already 2375880f2d7SDarrick J. Wong * been placed there. However, the RUI may not yet have been placed in the AIL 2385880f2d7SDarrick J. Wong * when called by xfs_rui_release() from RUD processing due to the ordering of 2395880f2d7SDarrick J. Wong * committed vs unpin operations in bulk insert operations. Hence the reference 2405880f2d7SDarrick J. Wong * count to ensure only the last caller frees the RUI. 2415880f2d7SDarrick J. Wong */ 2425880f2d7SDarrick J. Wong void 2435880f2d7SDarrick J. Wong xfs_rui_release( 2445880f2d7SDarrick J. Wong struct xfs_rui_log_item *ruip) 2455880f2d7SDarrick J. Wong { 2465880f2d7SDarrick J. Wong if (atomic_dec_and_test(&ruip->rui_refcount)) { 2475880f2d7SDarrick J. Wong xfs_trans_ail_remove(&ruip->rui_item, SHUTDOWN_LOG_IO_ERROR); 2485880f2d7SDarrick J. Wong xfs_rui_item_free(ruip); 2495880f2d7SDarrick J. Wong } 2505880f2d7SDarrick J. Wong } 2515880f2d7SDarrick J. Wong 2525880f2d7SDarrick J. Wong static inline struct xfs_rud_log_item *RUD_ITEM(struct xfs_log_item *lip) 2535880f2d7SDarrick J. Wong { 2545880f2d7SDarrick J. Wong return container_of(lip, struct xfs_rud_log_item, rud_item); 2555880f2d7SDarrick J. Wong } 2565880f2d7SDarrick J. Wong 2575880f2d7SDarrick J. Wong STATIC void 2585880f2d7SDarrick J. Wong xfs_rud_item_size( 2595880f2d7SDarrick J. Wong struct xfs_log_item *lip, 2605880f2d7SDarrick J. Wong int *nvecs, 2615880f2d7SDarrick J. Wong int *nbytes) 2625880f2d7SDarrick J. Wong { 2635880f2d7SDarrick J. Wong *nvecs += 1; 264722e2517SDarrick J. Wong *nbytes += sizeof(struct xfs_rud_log_format); 2655880f2d7SDarrick J. Wong } 2665880f2d7SDarrick J. Wong 2675880f2d7SDarrick J. Wong /* 2685880f2d7SDarrick J. Wong * This is called to fill in the vector of log iovecs for the 2695880f2d7SDarrick J. Wong * given rud log item. We use only 1 iovec, and we point that 2705880f2d7SDarrick J. Wong * at the rud_log_format structure embedded in the rud item. 2715880f2d7SDarrick J. Wong * It is at this point that we assert that all of the extent 2725880f2d7SDarrick J. Wong * slots in the rud item have been filled. 2735880f2d7SDarrick J. Wong */ 2745880f2d7SDarrick J. Wong STATIC void 2755880f2d7SDarrick J. Wong xfs_rud_item_format( 2765880f2d7SDarrick J. Wong struct xfs_log_item *lip, 2775880f2d7SDarrick J. Wong struct xfs_log_vec *lv) 2785880f2d7SDarrick J. Wong { 2795880f2d7SDarrick J. Wong struct xfs_rud_log_item *rudp = RUD_ITEM(lip); 2805880f2d7SDarrick J. Wong struct xfs_log_iovec *vecp = NULL; 2815880f2d7SDarrick J. Wong 2825880f2d7SDarrick J. Wong rudp->rud_format.rud_type = XFS_LI_RUD; 2835880f2d7SDarrick J. Wong rudp->rud_format.rud_size = 1; 2845880f2d7SDarrick J. Wong 2855880f2d7SDarrick J. Wong xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_RUD_FORMAT, &rudp->rud_format, 286722e2517SDarrick J. Wong sizeof(struct xfs_rud_log_format)); 2875880f2d7SDarrick J. Wong } 2885880f2d7SDarrick J. Wong 2895880f2d7SDarrick J. Wong /* 2905880f2d7SDarrick J. Wong * Pinning has no meaning for an rud item, so just return. 2915880f2d7SDarrick J. Wong */ 2925880f2d7SDarrick J. Wong STATIC void 2935880f2d7SDarrick J. Wong xfs_rud_item_pin( 2945880f2d7SDarrick J. Wong struct xfs_log_item *lip) 2955880f2d7SDarrick J. Wong { 2965880f2d7SDarrick J. Wong } 2975880f2d7SDarrick J. Wong 2985880f2d7SDarrick J. Wong /* 2995880f2d7SDarrick J. Wong * Since pinning has no meaning for an rud item, unpinning does 3005880f2d7SDarrick J. Wong * not either. 3015880f2d7SDarrick J. Wong */ 3025880f2d7SDarrick J. Wong STATIC void 3035880f2d7SDarrick J. Wong xfs_rud_item_unpin( 3045880f2d7SDarrick J. Wong struct xfs_log_item *lip, 3055880f2d7SDarrick J. Wong int remove) 3065880f2d7SDarrick J. Wong { 3075880f2d7SDarrick J. Wong } 3085880f2d7SDarrick J. Wong 3095880f2d7SDarrick J. Wong /* 3105880f2d7SDarrick J. Wong * There isn't much you can do to push on an rud item. It is simply stuck 3115880f2d7SDarrick J. Wong * waiting for the log to be flushed to disk. 3125880f2d7SDarrick J. Wong */ 3135880f2d7SDarrick J. Wong STATIC uint 3145880f2d7SDarrick J. Wong xfs_rud_item_push( 3155880f2d7SDarrick J. Wong struct xfs_log_item *lip, 3165880f2d7SDarrick J. Wong struct list_head *buffer_list) 3175880f2d7SDarrick J. Wong { 3185880f2d7SDarrick J. Wong return XFS_ITEM_PINNED; 3195880f2d7SDarrick J. Wong } 3205880f2d7SDarrick J. Wong 3215880f2d7SDarrick J. Wong /* 3225880f2d7SDarrick J. Wong * The RUD is either committed or aborted if the transaction is cancelled. If 3235880f2d7SDarrick J. Wong * the transaction is cancelled, drop our reference to the RUI and free the 3245880f2d7SDarrick J. Wong * RUD. 3255880f2d7SDarrick J. Wong */ 3265880f2d7SDarrick J. Wong STATIC void 3275880f2d7SDarrick J. Wong xfs_rud_item_unlock( 3285880f2d7SDarrick J. Wong struct xfs_log_item *lip) 3295880f2d7SDarrick J. Wong { 3305880f2d7SDarrick J. Wong struct xfs_rud_log_item *rudp = RUD_ITEM(lip); 3315880f2d7SDarrick J. Wong 3325880f2d7SDarrick J. Wong if (lip->li_flags & XFS_LI_ABORTED) { 3335880f2d7SDarrick J. Wong xfs_rui_release(rudp->rud_ruip); 334722e2517SDarrick J. Wong kmem_zone_free(xfs_rud_zone, rudp); 3355880f2d7SDarrick J. Wong } 3365880f2d7SDarrick J. Wong } 3375880f2d7SDarrick J. Wong 3385880f2d7SDarrick J. Wong /* 3395880f2d7SDarrick J. Wong * When the rud item is committed to disk, all we need to do is delete our 3405880f2d7SDarrick J. Wong * reference to our partner rui item and then free ourselves. Since we're 3415880f2d7SDarrick J. Wong * freeing ourselves we must return -1 to keep the transaction code from 3425880f2d7SDarrick J. Wong * further referencing this item. 3435880f2d7SDarrick J. Wong */ 3445880f2d7SDarrick J. Wong STATIC xfs_lsn_t 3455880f2d7SDarrick J. Wong xfs_rud_item_committed( 3465880f2d7SDarrick J. Wong struct xfs_log_item *lip, 3475880f2d7SDarrick J. Wong xfs_lsn_t lsn) 3485880f2d7SDarrick J. Wong { 3495880f2d7SDarrick J. Wong struct xfs_rud_log_item *rudp = RUD_ITEM(lip); 3505880f2d7SDarrick J. Wong 3515880f2d7SDarrick J. Wong /* 3525880f2d7SDarrick J. Wong * Drop the RUI reference regardless of whether the RUD has been 3535880f2d7SDarrick J. Wong * aborted. Once the RUD transaction is constructed, it is the sole 3545880f2d7SDarrick J. Wong * responsibility of the RUD to release the RUI (even if the RUI is 3555880f2d7SDarrick J. Wong * aborted due to log I/O error). 3565880f2d7SDarrick J. Wong */ 3575880f2d7SDarrick J. Wong xfs_rui_release(rudp->rud_ruip); 358722e2517SDarrick J. Wong kmem_zone_free(xfs_rud_zone, rudp); 3595880f2d7SDarrick J. Wong 3605880f2d7SDarrick J. Wong return (xfs_lsn_t)-1; 3615880f2d7SDarrick J. Wong } 3625880f2d7SDarrick J. Wong 3635880f2d7SDarrick J. Wong /* 3645880f2d7SDarrick J. Wong * The RUD dependency tracking op doesn't do squat. It can't because 3655880f2d7SDarrick J. Wong * it doesn't know where the free extent is coming from. The dependency 3665880f2d7SDarrick J. Wong * tracking has to be handled by the "enclosing" metadata object. For 3675880f2d7SDarrick J. Wong * example, for inodes, the inode is locked throughout the extent freeing 3685880f2d7SDarrick J. Wong * so the dependency should be recorded there. 3695880f2d7SDarrick J. Wong */ 3705880f2d7SDarrick J. Wong STATIC void 3715880f2d7SDarrick J. Wong xfs_rud_item_committing( 3725880f2d7SDarrick J. Wong struct xfs_log_item *lip, 3735880f2d7SDarrick J. Wong xfs_lsn_t lsn) 3745880f2d7SDarrick J. Wong { 3755880f2d7SDarrick J. Wong } 3765880f2d7SDarrick J. Wong 3775880f2d7SDarrick J. Wong /* 3785880f2d7SDarrick J. Wong * This is the ops vector shared by all rud log items. 3795880f2d7SDarrick J. Wong */ 3805880f2d7SDarrick J. Wong static const struct xfs_item_ops xfs_rud_item_ops = { 3815880f2d7SDarrick J. Wong .iop_size = xfs_rud_item_size, 3825880f2d7SDarrick J. Wong .iop_format = xfs_rud_item_format, 3835880f2d7SDarrick J. Wong .iop_pin = xfs_rud_item_pin, 3845880f2d7SDarrick J. Wong .iop_unpin = xfs_rud_item_unpin, 3855880f2d7SDarrick J. Wong .iop_unlock = xfs_rud_item_unlock, 3865880f2d7SDarrick J. Wong .iop_committed = xfs_rud_item_committed, 3875880f2d7SDarrick J. Wong .iop_push = xfs_rud_item_push, 3885880f2d7SDarrick J. Wong .iop_committing = xfs_rud_item_committing, 3895880f2d7SDarrick J. Wong }; 3905880f2d7SDarrick J. Wong 3915880f2d7SDarrick J. Wong /* 3925880f2d7SDarrick J. Wong * Allocate and initialize an rud item with the given number of extents. 3935880f2d7SDarrick J. Wong */ 3945880f2d7SDarrick J. Wong struct xfs_rud_log_item * 3955880f2d7SDarrick J. Wong xfs_rud_init( 3965880f2d7SDarrick J. Wong struct xfs_mount *mp, 397722e2517SDarrick J. Wong struct xfs_rui_log_item *ruip) 3985880f2d7SDarrick J. Wong 3995880f2d7SDarrick J. Wong { 4005880f2d7SDarrick J. Wong struct xfs_rud_log_item *rudp; 4015880f2d7SDarrick J. Wong 4025880f2d7SDarrick J. Wong rudp = kmem_zone_zalloc(xfs_rud_zone, KM_SLEEP); 4035880f2d7SDarrick J. Wong xfs_log_item_init(mp, &rudp->rud_item, XFS_LI_RUD, &xfs_rud_item_ops); 4045880f2d7SDarrick J. Wong rudp->rud_ruip = ruip; 4055880f2d7SDarrick J. Wong rudp->rud_format.rud_rui_id = ruip->rui_format.rui_id; 4065880f2d7SDarrick J. Wong 4075880f2d7SDarrick J. Wong return rudp; 4085880f2d7SDarrick J. Wong } 4099e88b5d8SDarrick J. Wong 4109e88b5d8SDarrick J. Wong /* 4119e88b5d8SDarrick J. Wong * Process an rmap update intent item that was recovered from the log. 4129e88b5d8SDarrick J. Wong * We need to update the rmapbt. 4139e88b5d8SDarrick J. Wong */ 4149e88b5d8SDarrick J. Wong int 4159e88b5d8SDarrick J. Wong xfs_rui_recover( 4169e88b5d8SDarrick J. Wong struct xfs_mount *mp, 4179e88b5d8SDarrick J. Wong struct xfs_rui_log_item *ruip) 4189e88b5d8SDarrick J. Wong { 4199e88b5d8SDarrick J. Wong int i; 4209e88b5d8SDarrick J. Wong int error = 0; 4219e88b5d8SDarrick J. Wong struct xfs_map_extent *rmap; 4229e88b5d8SDarrick J. Wong xfs_fsblock_t startblock_fsb; 4239e88b5d8SDarrick J. Wong bool op_ok; 4249c194644SDarrick J. Wong struct xfs_rud_log_item *rudp; 4259c194644SDarrick J. Wong enum xfs_rmap_intent_type type; 4269c194644SDarrick J. Wong int whichfork; 4279c194644SDarrick J. Wong xfs_exntst_t state; 4289c194644SDarrick J. Wong struct xfs_trans *tp; 4299c194644SDarrick J. Wong struct xfs_btree_cur *rcur = NULL; 4309e88b5d8SDarrick J. Wong 4319e88b5d8SDarrick J. Wong ASSERT(!test_bit(XFS_RUI_RECOVERED, &ruip->rui_flags)); 4329e88b5d8SDarrick J. Wong 4339e88b5d8SDarrick J. Wong /* 4349e88b5d8SDarrick J. Wong * First check the validity of the extents described by the 4359e88b5d8SDarrick J. Wong * RUI. If any are bad, then assume that all are bad and 4369e88b5d8SDarrick J. Wong * just toss the RUI. 4379e88b5d8SDarrick J. Wong */ 4389e88b5d8SDarrick J. Wong for (i = 0; i < ruip->rui_format.rui_nextents; i++) { 439e127fafdSDarrick J. Wong rmap = &ruip->rui_format.rui_extents[i]; 4409e88b5d8SDarrick J. Wong startblock_fsb = XFS_BB_TO_FSB(mp, 4419e88b5d8SDarrick J. Wong XFS_FSB_TO_DADDR(mp, rmap->me_startblock)); 4429e88b5d8SDarrick J. Wong switch (rmap->me_flags & XFS_RMAP_EXTENT_TYPE_MASK) { 4439e88b5d8SDarrick J. Wong case XFS_RMAP_EXTENT_MAP: 4440e07c039SDarrick J. Wong case XFS_RMAP_EXTENT_MAP_SHARED: 4459e88b5d8SDarrick J. Wong case XFS_RMAP_EXTENT_UNMAP: 4460e07c039SDarrick J. Wong case XFS_RMAP_EXTENT_UNMAP_SHARED: 4479e88b5d8SDarrick J. Wong case XFS_RMAP_EXTENT_CONVERT: 4480e07c039SDarrick J. Wong case XFS_RMAP_EXTENT_CONVERT_SHARED: 4499e88b5d8SDarrick J. Wong case XFS_RMAP_EXTENT_ALLOC: 4509e88b5d8SDarrick J. Wong case XFS_RMAP_EXTENT_FREE: 4519e88b5d8SDarrick J. Wong op_ok = true; 4529e88b5d8SDarrick J. Wong break; 4539e88b5d8SDarrick J. Wong default: 4549e88b5d8SDarrick J. Wong op_ok = false; 4559e88b5d8SDarrick J. Wong break; 4569e88b5d8SDarrick J. Wong } 457e127fafdSDarrick J. Wong if (!op_ok || startblock_fsb == 0 || 458e127fafdSDarrick J. Wong rmap->me_len == 0 || 459e127fafdSDarrick J. Wong startblock_fsb >= mp->m_sb.sb_dblocks || 460e127fafdSDarrick J. Wong rmap->me_len >= mp->m_sb.sb_agblocks || 4619e88b5d8SDarrick J. Wong (rmap->me_flags & ~XFS_RMAP_EXTENT_FLAGS)) { 4629e88b5d8SDarrick J. Wong /* 4639e88b5d8SDarrick J. Wong * This will pull the RUI from the AIL and 4649e88b5d8SDarrick J. Wong * free the memory associated with it. 4659e88b5d8SDarrick J. Wong */ 4669e88b5d8SDarrick J. Wong set_bit(XFS_RUI_RECOVERED, &ruip->rui_flags); 4679e88b5d8SDarrick J. Wong xfs_rui_release(ruip); 4689e88b5d8SDarrick J. Wong return -EIO; 4699e88b5d8SDarrick J. Wong } 4709e88b5d8SDarrick J. Wong } 4719e88b5d8SDarrick J. Wong 4729c194644SDarrick J. Wong error = xfs_trans_alloc(mp, &M_RES(mp)->tr_itruncate, 0, 0, 0, &tp); 4739c194644SDarrick J. Wong if (error) 4749c194644SDarrick J. Wong return error; 475722e2517SDarrick J. Wong rudp = xfs_trans_get_rud(tp, ruip); 4769c194644SDarrick J. Wong 4779c194644SDarrick J. Wong for (i = 0; i < ruip->rui_format.rui_nextents; i++) { 478e127fafdSDarrick J. Wong rmap = &ruip->rui_format.rui_extents[i]; 4799c194644SDarrick J. Wong state = (rmap->me_flags & XFS_RMAP_EXTENT_UNWRITTEN) ? 4809c194644SDarrick J. Wong XFS_EXT_UNWRITTEN : XFS_EXT_NORM; 4819c194644SDarrick J. Wong whichfork = (rmap->me_flags & XFS_RMAP_EXTENT_ATTR_FORK) ? 4829c194644SDarrick J. Wong XFS_ATTR_FORK : XFS_DATA_FORK; 4839c194644SDarrick J. Wong switch (rmap->me_flags & XFS_RMAP_EXTENT_TYPE_MASK) { 4849c194644SDarrick J. Wong case XFS_RMAP_EXTENT_MAP: 4859c194644SDarrick J. Wong type = XFS_RMAP_MAP; 4869c194644SDarrick J. Wong break; 4879c194644SDarrick J. Wong case XFS_RMAP_EXTENT_UNMAP: 4889c194644SDarrick J. Wong type = XFS_RMAP_UNMAP; 4899c194644SDarrick J. Wong break; 4909c194644SDarrick J. Wong case XFS_RMAP_EXTENT_CONVERT: 4919c194644SDarrick J. Wong type = XFS_RMAP_CONVERT; 4929c194644SDarrick J. Wong break; 4939c194644SDarrick J. Wong case XFS_RMAP_EXTENT_ALLOC: 4949c194644SDarrick J. Wong type = XFS_RMAP_ALLOC; 4959c194644SDarrick J. Wong break; 4969c194644SDarrick J. Wong case XFS_RMAP_EXTENT_FREE: 4979c194644SDarrick J. Wong type = XFS_RMAP_FREE; 4989c194644SDarrick J. Wong break; 4999c194644SDarrick J. Wong default: 5009c194644SDarrick J. Wong error = -EFSCORRUPTED; 5019c194644SDarrick J. Wong goto abort_error; 5029c194644SDarrick J. Wong } 5039c194644SDarrick J. Wong error = xfs_trans_log_finish_rmap_update(tp, rudp, type, 5049c194644SDarrick J. Wong rmap->me_owner, whichfork, 5059c194644SDarrick J. Wong rmap->me_startoff, rmap->me_startblock, 5069c194644SDarrick J. Wong rmap->me_len, state, &rcur); 5079c194644SDarrick J. Wong if (error) 5089c194644SDarrick J. Wong goto abort_error; 5099c194644SDarrick J. Wong 5109c194644SDarrick J. Wong } 5119c194644SDarrick J. Wong 5129c194644SDarrick J. Wong xfs_rmap_finish_one_cleanup(tp, rcur, error); 5139e88b5d8SDarrick J. Wong set_bit(XFS_RUI_RECOVERED, &ruip->rui_flags); 5149c194644SDarrick J. Wong error = xfs_trans_commit(tp); 5159c194644SDarrick J. Wong return error; 5169c194644SDarrick J. Wong 5179c194644SDarrick J. Wong abort_error: 5189c194644SDarrick J. Wong xfs_rmap_finish_one_cleanup(tp, rcur, error); 5199c194644SDarrick J. Wong xfs_trans_cancel(tp); 5209e88b5d8SDarrick J. Wong return error; 5219e88b5d8SDarrick J. Wong } 522