10b61f8a4SDave Chinner // SPDX-License-Identifier: GPL-2.0+ 25880f2d7SDarrick J. Wong /* 35880f2d7SDarrick J. Wong * Copyright (C) 2016 Oracle. All Rights Reserved. 45880f2d7SDarrick J. Wong * Author: Darrick J. Wong <darrick.wong@oracle.com> 55880f2d7SDarrick J. Wong */ 65880f2d7SDarrick J. Wong #include "xfs.h" 75880f2d7SDarrick J. Wong #include "xfs_fs.h" 85880f2d7SDarrick J. Wong #include "xfs_format.h" 95880f2d7SDarrick J. Wong #include "xfs_log_format.h" 105880f2d7SDarrick J. Wong #include "xfs_trans_resv.h" 119e88b5d8SDarrick J. Wong #include "xfs_bit.h" 12b31c2bdcSDarrick J. Wong #include "xfs_shared.h" 135880f2d7SDarrick J. Wong #include "xfs_mount.h" 149c194644SDarrick J. Wong #include "xfs_defer.h" 155880f2d7SDarrick J. Wong #include "xfs_trans.h" 165880f2d7SDarrick J. Wong #include "xfs_trans_priv.h" 175880f2d7SDarrick J. Wong #include "xfs_buf_item.h" 185880f2d7SDarrick J. Wong #include "xfs_rmap_item.h" 195880f2d7SDarrick J. Wong #include "xfs_log.h" 209c194644SDarrick J. Wong #include "xfs_rmap.h" 215880f2d7SDarrick J. Wong 225880f2d7SDarrick J. Wong 235880f2d7SDarrick J. Wong kmem_zone_t *xfs_rui_zone; 245880f2d7SDarrick J. Wong kmem_zone_t *xfs_rud_zone; 255880f2d7SDarrick J. Wong 265880f2d7SDarrick J. Wong static inline struct xfs_rui_log_item *RUI_ITEM(struct xfs_log_item *lip) 275880f2d7SDarrick J. Wong { 285880f2d7SDarrick J. Wong return container_of(lip, struct xfs_rui_log_item, rui_item); 295880f2d7SDarrick J. Wong } 305880f2d7SDarrick J. Wong 315880f2d7SDarrick J. Wong void 325880f2d7SDarrick J. Wong xfs_rui_item_free( 335880f2d7SDarrick J. Wong struct xfs_rui_log_item *ruip) 345880f2d7SDarrick J. Wong { 355880f2d7SDarrick J. Wong if (ruip->rui_format.rui_nextents > XFS_RUI_MAX_FAST_EXTENTS) 365880f2d7SDarrick J. Wong kmem_free(ruip); 375880f2d7SDarrick J. Wong else 385880f2d7SDarrick J. Wong kmem_zone_free(xfs_rui_zone, ruip); 395880f2d7SDarrick J. Wong } 405880f2d7SDarrick J. Wong 410612d116SDave Chinner /* 420612d116SDave Chinner * Freeing the RUI requires that we remove it from the AIL if it has already 430612d116SDave Chinner * been placed there. However, the RUI may not yet have been placed in the AIL 440612d116SDave Chinner * when called by xfs_rui_release() from RUD processing due to the ordering of 450612d116SDave Chinner * committed vs unpin operations in bulk insert operations. Hence the reference 460612d116SDave Chinner * count to ensure only the last caller frees the RUI. 470612d116SDave Chinner */ 480612d116SDave Chinner void 490612d116SDave Chinner xfs_rui_release( 500612d116SDave Chinner struct xfs_rui_log_item *ruip) 510612d116SDave Chinner { 520612d116SDave Chinner ASSERT(atomic_read(&ruip->rui_refcount) > 0); 530612d116SDave Chinner if (atomic_dec_and_test(&ruip->rui_refcount)) { 540612d116SDave Chinner xfs_trans_ail_remove(&ruip->rui_item, SHUTDOWN_LOG_IO_ERROR); 550612d116SDave Chinner xfs_rui_item_free(ruip); 560612d116SDave Chinner } 570612d116SDave Chinner } 580612d116SDave Chinner 595880f2d7SDarrick J. Wong STATIC void 605880f2d7SDarrick J. Wong xfs_rui_item_size( 615880f2d7SDarrick J. Wong struct xfs_log_item *lip, 625880f2d7SDarrick J. Wong int *nvecs, 635880f2d7SDarrick J. Wong int *nbytes) 645880f2d7SDarrick J. Wong { 65cd00158cSDarrick J. Wong struct xfs_rui_log_item *ruip = RUI_ITEM(lip); 66cd00158cSDarrick J. Wong 675880f2d7SDarrick J. Wong *nvecs += 1; 68cd00158cSDarrick J. Wong *nbytes += xfs_rui_log_format_sizeof(ruip->rui_format.rui_nextents); 695880f2d7SDarrick J. Wong } 705880f2d7SDarrick J. Wong 715880f2d7SDarrick J. Wong /* 725880f2d7SDarrick J. Wong * This is called to fill in the vector of log iovecs for the 735880f2d7SDarrick J. Wong * given rui log item. We use only 1 iovec, and we point that 745880f2d7SDarrick J. Wong * at the rui_log_format structure embedded in the rui item. 755880f2d7SDarrick J. Wong * It is at this point that we assert that all of the extent 765880f2d7SDarrick J. Wong * slots in the rui item have been filled. 775880f2d7SDarrick J. Wong */ 785880f2d7SDarrick J. Wong STATIC void 795880f2d7SDarrick J. Wong xfs_rui_item_format( 805880f2d7SDarrick J. Wong struct xfs_log_item *lip, 815880f2d7SDarrick J. Wong struct xfs_log_vec *lv) 825880f2d7SDarrick J. Wong { 835880f2d7SDarrick J. Wong struct xfs_rui_log_item *ruip = RUI_ITEM(lip); 845880f2d7SDarrick J. Wong struct xfs_log_iovec *vecp = NULL; 855880f2d7SDarrick J. Wong 865880f2d7SDarrick J. Wong ASSERT(atomic_read(&ruip->rui_next_extent) == 875880f2d7SDarrick J. Wong ruip->rui_format.rui_nextents); 885880f2d7SDarrick J. Wong 895880f2d7SDarrick J. Wong ruip->rui_format.rui_type = XFS_LI_RUI; 905880f2d7SDarrick J. Wong ruip->rui_format.rui_size = 1; 915880f2d7SDarrick J. Wong 925880f2d7SDarrick J. Wong xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_RUI_FORMAT, &ruip->rui_format, 93cd00158cSDarrick J. Wong xfs_rui_log_format_sizeof(ruip->rui_format.rui_nextents)); 945880f2d7SDarrick J. Wong } 955880f2d7SDarrick J. Wong 965880f2d7SDarrick J. Wong /* 975880f2d7SDarrick J. Wong * Pinning has no meaning for an rui item, so just return. 985880f2d7SDarrick J. Wong */ 995880f2d7SDarrick J. Wong STATIC void 1005880f2d7SDarrick J. Wong xfs_rui_item_pin( 1015880f2d7SDarrick J. Wong struct xfs_log_item *lip) 1025880f2d7SDarrick J. Wong { 1035880f2d7SDarrick J. Wong } 1045880f2d7SDarrick J. Wong 1055880f2d7SDarrick J. Wong /* 1065880f2d7SDarrick J. Wong * The unpin operation is the last place an RUI is manipulated in the log. It is 1075880f2d7SDarrick J. Wong * either inserted in the AIL or aborted in the event of a log I/O error. In 1085880f2d7SDarrick J. Wong * either case, the RUI transaction has been successfully committed to make it 1095880f2d7SDarrick J. Wong * this far. Therefore, we expect whoever committed the RUI to either construct 1105880f2d7SDarrick J. Wong * and commit the RUD or drop the RUD's reference in the event of error. Simply 1115880f2d7SDarrick J. Wong * drop the log's RUI reference now that the log is done with it. 1125880f2d7SDarrick J. Wong */ 1135880f2d7SDarrick J. Wong STATIC void 1145880f2d7SDarrick J. Wong xfs_rui_item_unpin( 1155880f2d7SDarrick J. Wong struct xfs_log_item *lip, 1165880f2d7SDarrick J. Wong int remove) 1175880f2d7SDarrick J. Wong { 1185880f2d7SDarrick J. Wong struct xfs_rui_log_item *ruip = RUI_ITEM(lip); 1195880f2d7SDarrick J. Wong 1205880f2d7SDarrick J. Wong xfs_rui_release(ruip); 1215880f2d7SDarrick J. Wong } 1225880f2d7SDarrick J. Wong 1235880f2d7SDarrick J. Wong /* 1245880f2d7SDarrick J. Wong * RUI items have no locking or pushing. However, since RUIs are pulled from 1255880f2d7SDarrick J. Wong * the AIL when their corresponding RUDs are committed to disk, their situation 1265880f2d7SDarrick J. Wong * is very similar to being pinned. Return XFS_ITEM_PINNED so that the caller 1275880f2d7SDarrick J. Wong * will eventually flush the log. This should help in getting the RUI out of 1285880f2d7SDarrick J. Wong * the AIL. 1295880f2d7SDarrick J. Wong */ 1305880f2d7SDarrick J. Wong STATIC uint 1315880f2d7SDarrick J. Wong xfs_rui_item_push( 1325880f2d7SDarrick J. Wong struct xfs_log_item *lip, 1335880f2d7SDarrick J. Wong struct list_head *buffer_list) 1345880f2d7SDarrick J. Wong { 1355880f2d7SDarrick J. Wong return XFS_ITEM_PINNED; 1365880f2d7SDarrick J. Wong } 1375880f2d7SDarrick J. Wong 1385880f2d7SDarrick J. Wong /* 1395880f2d7SDarrick J. Wong * The RUI has been either committed or aborted if the transaction has been 1405880f2d7SDarrick J. Wong * cancelled. If the transaction was cancelled, an RUD isn't going to be 1415880f2d7SDarrick J. Wong * constructed and thus we free the RUI here directly. 1425880f2d7SDarrick J. Wong */ 1435880f2d7SDarrick J. Wong STATIC void 1445880f2d7SDarrick J. Wong xfs_rui_item_unlock( 1455880f2d7SDarrick J. Wong struct xfs_log_item *lip) 1465880f2d7SDarrick J. Wong { 14722525c17SDave Chinner if (test_bit(XFS_LI_ABORTED, &lip->li_flags)) 1480612d116SDave Chinner xfs_rui_release(RUI_ITEM(lip)); 1495880f2d7SDarrick J. Wong } 1505880f2d7SDarrick J. Wong 1515880f2d7SDarrick J. Wong /* 1525880f2d7SDarrick J. Wong * The RUI is logged only once and cannot be moved in the log, so simply return 1535880f2d7SDarrick J. Wong * the lsn at which it's been logged. 1545880f2d7SDarrick J. Wong */ 1555880f2d7SDarrick J. Wong STATIC xfs_lsn_t 1565880f2d7SDarrick J. Wong xfs_rui_item_committed( 1575880f2d7SDarrick J. Wong struct xfs_log_item *lip, 1585880f2d7SDarrick J. Wong xfs_lsn_t lsn) 1595880f2d7SDarrick J. Wong { 1605880f2d7SDarrick J. Wong return lsn; 1615880f2d7SDarrick J. Wong } 1625880f2d7SDarrick J. Wong 1635880f2d7SDarrick J. Wong /* 1645880f2d7SDarrick J. Wong * The RUI dependency tracking op doesn't do squat. It can't because 1655880f2d7SDarrick J. Wong * it doesn't know where the free extent is coming from. The dependency 1665880f2d7SDarrick J. Wong * tracking has to be handled by the "enclosing" metadata object. For 1675880f2d7SDarrick J. Wong * example, for inodes, the inode is locked throughout the extent freeing 1685880f2d7SDarrick J. Wong * so the dependency should be recorded there. 1695880f2d7SDarrick J. Wong */ 1705880f2d7SDarrick J. Wong STATIC void 1715880f2d7SDarrick J. Wong xfs_rui_item_committing( 1725880f2d7SDarrick J. Wong struct xfs_log_item *lip, 1735880f2d7SDarrick J. Wong xfs_lsn_t lsn) 1745880f2d7SDarrick J. Wong { 1755880f2d7SDarrick J. Wong } 1765880f2d7SDarrick J. Wong 1775880f2d7SDarrick J. Wong /* 1785880f2d7SDarrick J. Wong * This is the ops vector shared by all rui log items. 1795880f2d7SDarrick J. Wong */ 1805880f2d7SDarrick J. Wong static const struct xfs_item_ops xfs_rui_item_ops = { 1815880f2d7SDarrick J. Wong .iop_size = xfs_rui_item_size, 1825880f2d7SDarrick J. Wong .iop_format = xfs_rui_item_format, 1835880f2d7SDarrick J. Wong .iop_pin = xfs_rui_item_pin, 1845880f2d7SDarrick J. Wong .iop_unpin = xfs_rui_item_unpin, 1855880f2d7SDarrick J. Wong .iop_unlock = xfs_rui_item_unlock, 1865880f2d7SDarrick J. Wong .iop_committed = xfs_rui_item_committed, 1875880f2d7SDarrick J. Wong .iop_push = xfs_rui_item_push, 1885880f2d7SDarrick J. Wong .iop_committing = xfs_rui_item_committing, 1895880f2d7SDarrick J. Wong }; 1905880f2d7SDarrick J. Wong 1915880f2d7SDarrick J. Wong /* 1925880f2d7SDarrick J. Wong * Allocate and initialize an rui item with the given number of extents. 1935880f2d7SDarrick J. Wong */ 1945880f2d7SDarrick J. Wong struct xfs_rui_log_item * 1955880f2d7SDarrick J. Wong xfs_rui_init( 1965880f2d7SDarrick J. Wong struct xfs_mount *mp, 1975880f2d7SDarrick J. Wong uint nextents) 1985880f2d7SDarrick J. Wong 1995880f2d7SDarrick J. Wong { 2005880f2d7SDarrick J. Wong struct xfs_rui_log_item *ruip; 2015880f2d7SDarrick J. Wong 2025880f2d7SDarrick J. Wong ASSERT(nextents > 0); 203cd00158cSDarrick J. Wong if (nextents > XFS_RUI_MAX_FAST_EXTENTS) 204cd00158cSDarrick J. Wong ruip = kmem_zalloc(xfs_rui_log_item_sizeof(nextents), KM_SLEEP); 205cd00158cSDarrick J. Wong else 2065880f2d7SDarrick J. Wong ruip = kmem_zone_zalloc(xfs_rui_zone, KM_SLEEP); 2075880f2d7SDarrick J. Wong 2085880f2d7SDarrick J. Wong xfs_log_item_init(mp, &ruip->rui_item, XFS_LI_RUI, &xfs_rui_item_ops); 2095880f2d7SDarrick J. Wong ruip->rui_format.rui_nextents = nextents; 2105880f2d7SDarrick J. Wong ruip->rui_format.rui_id = (uintptr_t)(void *)ruip; 2115880f2d7SDarrick J. Wong atomic_set(&ruip->rui_next_extent, 0); 2125880f2d7SDarrick J. Wong atomic_set(&ruip->rui_refcount, 2); 2135880f2d7SDarrick J. Wong 2145880f2d7SDarrick J. Wong return ruip; 2155880f2d7SDarrick J. Wong } 2165880f2d7SDarrick J. Wong 2175880f2d7SDarrick J. Wong /* 2185880f2d7SDarrick J. Wong * Copy an RUI format buffer from the given buf, and into the destination 2195880f2d7SDarrick J. Wong * RUI format structure. The RUI/RUD items were designed not to need any 2205880f2d7SDarrick J. Wong * special alignment handling. 2215880f2d7SDarrick J. Wong */ 2225880f2d7SDarrick J. Wong int 2235880f2d7SDarrick J. Wong xfs_rui_copy_format( 2245880f2d7SDarrick J. Wong struct xfs_log_iovec *buf, 2255880f2d7SDarrick J. Wong struct xfs_rui_log_format *dst_rui_fmt) 2265880f2d7SDarrick J. Wong { 2275880f2d7SDarrick J. Wong struct xfs_rui_log_format *src_rui_fmt; 2285880f2d7SDarrick J. Wong uint len; 2295880f2d7SDarrick J. Wong 2305880f2d7SDarrick J. Wong src_rui_fmt = buf->i_addr; 231cd00158cSDarrick J. Wong len = xfs_rui_log_format_sizeof(src_rui_fmt->rui_nextents); 2325880f2d7SDarrick J. Wong 2335880f2d7SDarrick J. Wong if (buf->i_len != len) 2345880f2d7SDarrick J. Wong return -EFSCORRUPTED; 2355880f2d7SDarrick J. Wong 236cd00158cSDarrick J. Wong memcpy(dst_rui_fmt, src_rui_fmt, len); 2375880f2d7SDarrick J. Wong return 0; 2385880f2d7SDarrick J. Wong } 2395880f2d7SDarrick J. Wong 2405880f2d7SDarrick J. Wong static inline struct xfs_rud_log_item *RUD_ITEM(struct xfs_log_item *lip) 2415880f2d7SDarrick J. Wong { 2425880f2d7SDarrick J. Wong return container_of(lip, struct xfs_rud_log_item, rud_item); 2435880f2d7SDarrick J. Wong } 2445880f2d7SDarrick J. Wong 2455880f2d7SDarrick J. Wong STATIC void 2465880f2d7SDarrick J. Wong xfs_rud_item_size( 2475880f2d7SDarrick J. Wong struct xfs_log_item *lip, 2485880f2d7SDarrick J. Wong int *nvecs, 2495880f2d7SDarrick J. Wong int *nbytes) 2505880f2d7SDarrick J. Wong { 2515880f2d7SDarrick J. Wong *nvecs += 1; 252722e2517SDarrick J. Wong *nbytes += sizeof(struct xfs_rud_log_format); 2535880f2d7SDarrick J. Wong } 2545880f2d7SDarrick J. Wong 2555880f2d7SDarrick J. Wong /* 2565880f2d7SDarrick J. Wong * This is called to fill in the vector of log iovecs for the 2575880f2d7SDarrick J. Wong * given rud log item. We use only 1 iovec, and we point that 2585880f2d7SDarrick J. Wong * at the rud_log_format structure embedded in the rud item. 2595880f2d7SDarrick J. Wong * It is at this point that we assert that all of the extent 2605880f2d7SDarrick J. Wong * slots in the rud item have been filled. 2615880f2d7SDarrick J. Wong */ 2625880f2d7SDarrick J. Wong STATIC void 2635880f2d7SDarrick J. Wong xfs_rud_item_format( 2645880f2d7SDarrick J. Wong struct xfs_log_item *lip, 2655880f2d7SDarrick J. Wong struct xfs_log_vec *lv) 2665880f2d7SDarrick J. Wong { 2675880f2d7SDarrick J. Wong struct xfs_rud_log_item *rudp = RUD_ITEM(lip); 2685880f2d7SDarrick J. Wong struct xfs_log_iovec *vecp = NULL; 2695880f2d7SDarrick J. Wong 2705880f2d7SDarrick J. Wong rudp->rud_format.rud_type = XFS_LI_RUD; 2715880f2d7SDarrick J. Wong rudp->rud_format.rud_size = 1; 2725880f2d7SDarrick J. Wong 2735880f2d7SDarrick J. Wong xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_RUD_FORMAT, &rudp->rud_format, 274722e2517SDarrick J. Wong sizeof(struct xfs_rud_log_format)); 2755880f2d7SDarrick J. Wong } 2765880f2d7SDarrick J. Wong 2775880f2d7SDarrick J. Wong /* 2785880f2d7SDarrick J. Wong * Pinning has no meaning for an rud item, so just return. 2795880f2d7SDarrick J. Wong */ 2805880f2d7SDarrick J. Wong STATIC void 2815880f2d7SDarrick J. Wong xfs_rud_item_pin( 2825880f2d7SDarrick J. Wong struct xfs_log_item *lip) 2835880f2d7SDarrick J. Wong { 2845880f2d7SDarrick J. Wong } 2855880f2d7SDarrick J. Wong 2865880f2d7SDarrick J. Wong /* 2875880f2d7SDarrick J. Wong * Since pinning has no meaning for an rud item, unpinning does 2885880f2d7SDarrick J. Wong * not either. 2895880f2d7SDarrick J. Wong */ 2905880f2d7SDarrick J. Wong STATIC void 2915880f2d7SDarrick J. Wong xfs_rud_item_unpin( 2925880f2d7SDarrick J. Wong struct xfs_log_item *lip, 2935880f2d7SDarrick J. Wong int remove) 2945880f2d7SDarrick J. Wong { 2955880f2d7SDarrick J. Wong } 2965880f2d7SDarrick J. Wong 2975880f2d7SDarrick J. Wong /* 2985880f2d7SDarrick J. Wong * There isn't much you can do to push on an rud item. It is simply stuck 2995880f2d7SDarrick J. Wong * waiting for the log to be flushed to disk. 3005880f2d7SDarrick J. Wong */ 3015880f2d7SDarrick J. Wong STATIC uint 3025880f2d7SDarrick J. Wong xfs_rud_item_push( 3035880f2d7SDarrick J. Wong struct xfs_log_item *lip, 3045880f2d7SDarrick J. Wong struct list_head *buffer_list) 3055880f2d7SDarrick J. Wong { 3065880f2d7SDarrick J. Wong return XFS_ITEM_PINNED; 3075880f2d7SDarrick J. Wong } 3085880f2d7SDarrick J. Wong 3095880f2d7SDarrick J. Wong /* 3105880f2d7SDarrick J. Wong * The RUD is either committed or aborted if the transaction is cancelled. If 3115880f2d7SDarrick J. Wong * the transaction is cancelled, drop our reference to the RUI and free the 3125880f2d7SDarrick J. Wong * RUD. 3135880f2d7SDarrick J. Wong */ 3145880f2d7SDarrick J. Wong STATIC void 3155880f2d7SDarrick J. Wong xfs_rud_item_unlock( 3165880f2d7SDarrick J. Wong struct xfs_log_item *lip) 3175880f2d7SDarrick J. Wong { 3185880f2d7SDarrick J. Wong struct xfs_rud_log_item *rudp = RUD_ITEM(lip); 3195880f2d7SDarrick J. Wong 32022525c17SDave Chinner if (test_bit(XFS_LI_ABORTED, &lip->li_flags)) { 3215880f2d7SDarrick J. Wong xfs_rui_release(rudp->rud_ruip); 322722e2517SDarrick J. Wong kmem_zone_free(xfs_rud_zone, rudp); 3235880f2d7SDarrick J. Wong } 3245880f2d7SDarrick J. Wong } 3255880f2d7SDarrick J. Wong 3265880f2d7SDarrick J. Wong /* 3275880f2d7SDarrick J. Wong * When the rud item is committed to disk, all we need to do is delete our 3285880f2d7SDarrick J. Wong * reference to our partner rui item and then free ourselves. Since we're 3295880f2d7SDarrick J. Wong * freeing ourselves we must return -1 to keep the transaction code from 3305880f2d7SDarrick J. Wong * further referencing this item. 3315880f2d7SDarrick J. Wong */ 3325880f2d7SDarrick J. Wong STATIC xfs_lsn_t 3335880f2d7SDarrick J. Wong xfs_rud_item_committed( 3345880f2d7SDarrick J. Wong struct xfs_log_item *lip, 3355880f2d7SDarrick J. Wong xfs_lsn_t lsn) 3365880f2d7SDarrick J. Wong { 3375880f2d7SDarrick J. Wong struct xfs_rud_log_item *rudp = RUD_ITEM(lip); 3385880f2d7SDarrick J. Wong 3395880f2d7SDarrick J. Wong /* 3405880f2d7SDarrick J. Wong * Drop the RUI reference regardless of whether the RUD has been 3415880f2d7SDarrick J. Wong * aborted. Once the RUD transaction is constructed, it is the sole 3425880f2d7SDarrick J. Wong * responsibility of the RUD to release the RUI (even if the RUI is 3435880f2d7SDarrick J. Wong * aborted due to log I/O error). 3445880f2d7SDarrick J. Wong */ 3455880f2d7SDarrick J. Wong xfs_rui_release(rudp->rud_ruip); 346722e2517SDarrick J. Wong kmem_zone_free(xfs_rud_zone, rudp); 3475880f2d7SDarrick J. Wong 3485880f2d7SDarrick J. Wong return (xfs_lsn_t)-1; 3495880f2d7SDarrick J. Wong } 3505880f2d7SDarrick J. Wong 3515880f2d7SDarrick J. Wong /* 3525880f2d7SDarrick J. Wong * The RUD dependency tracking op doesn't do squat. It can't because 3535880f2d7SDarrick J. Wong * it doesn't know where the free extent is coming from. The dependency 3545880f2d7SDarrick J. Wong * tracking has to be handled by the "enclosing" metadata object. For 3555880f2d7SDarrick J. Wong * example, for inodes, the inode is locked throughout the extent freeing 3565880f2d7SDarrick J. Wong * so the dependency should be recorded there. 3575880f2d7SDarrick J. Wong */ 3585880f2d7SDarrick J. Wong STATIC void 3595880f2d7SDarrick J. Wong xfs_rud_item_committing( 3605880f2d7SDarrick J. Wong struct xfs_log_item *lip, 3615880f2d7SDarrick J. Wong xfs_lsn_t lsn) 3625880f2d7SDarrick J. Wong { 3635880f2d7SDarrick J. Wong } 3645880f2d7SDarrick J. Wong 3655880f2d7SDarrick J. Wong /* 3665880f2d7SDarrick J. Wong * This is the ops vector shared by all rud log items. 3675880f2d7SDarrick J. Wong */ 3685880f2d7SDarrick J. Wong static const struct xfs_item_ops xfs_rud_item_ops = { 3695880f2d7SDarrick J. Wong .iop_size = xfs_rud_item_size, 3705880f2d7SDarrick J. Wong .iop_format = xfs_rud_item_format, 3715880f2d7SDarrick J. Wong .iop_pin = xfs_rud_item_pin, 3725880f2d7SDarrick J. Wong .iop_unpin = xfs_rud_item_unpin, 3735880f2d7SDarrick J. Wong .iop_unlock = xfs_rud_item_unlock, 3745880f2d7SDarrick J. Wong .iop_committed = xfs_rud_item_committed, 3755880f2d7SDarrick J. Wong .iop_push = xfs_rud_item_push, 3765880f2d7SDarrick J. Wong .iop_committing = xfs_rud_item_committing, 3775880f2d7SDarrick J. Wong }; 3785880f2d7SDarrick J. Wong 3795880f2d7SDarrick J. Wong /* 3805880f2d7SDarrick J. Wong * Allocate and initialize an rud item with the given number of extents. 3815880f2d7SDarrick J. Wong */ 3825880f2d7SDarrick J. Wong struct xfs_rud_log_item * 3835880f2d7SDarrick J. Wong xfs_rud_init( 3845880f2d7SDarrick J. Wong struct xfs_mount *mp, 385722e2517SDarrick J. Wong struct xfs_rui_log_item *ruip) 3865880f2d7SDarrick J. Wong 3875880f2d7SDarrick J. Wong { 3885880f2d7SDarrick J. Wong struct xfs_rud_log_item *rudp; 3895880f2d7SDarrick J. Wong 3905880f2d7SDarrick J. Wong rudp = kmem_zone_zalloc(xfs_rud_zone, KM_SLEEP); 3915880f2d7SDarrick J. Wong xfs_log_item_init(mp, &rudp->rud_item, XFS_LI_RUD, &xfs_rud_item_ops); 3925880f2d7SDarrick J. Wong rudp->rud_ruip = ruip; 3935880f2d7SDarrick J. Wong rudp->rud_format.rud_rui_id = ruip->rui_format.rui_id; 3945880f2d7SDarrick J. Wong 3955880f2d7SDarrick J. Wong return rudp; 3965880f2d7SDarrick J. Wong } 3979e88b5d8SDarrick J. Wong 3989e88b5d8SDarrick J. Wong /* 3999e88b5d8SDarrick J. Wong * Process an rmap update intent item that was recovered from the log. 4009e88b5d8SDarrick J. Wong * We need to update the rmapbt. 4019e88b5d8SDarrick J. Wong */ 4029e88b5d8SDarrick J. Wong int 4039e88b5d8SDarrick J. Wong xfs_rui_recover( 4049e88b5d8SDarrick J. Wong struct xfs_mount *mp, 4059e88b5d8SDarrick J. Wong struct xfs_rui_log_item *ruip) 4069e88b5d8SDarrick J. Wong { 4079e88b5d8SDarrick J. Wong int i; 4089e88b5d8SDarrick J. Wong int error = 0; 4099e88b5d8SDarrick J. Wong struct xfs_map_extent *rmap; 4109e88b5d8SDarrick J. Wong xfs_fsblock_t startblock_fsb; 4119e88b5d8SDarrick J. Wong bool op_ok; 4129c194644SDarrick J. Wong struct xfs_rud_log_item *rudp; 4139c194644SDarrick J. Wong enum xfs_rmap_intent_type type; 4149c194644SDarrick J. Wong int whichfork; 4159c194644SDarrick J. Wong xfs_exntst_t state; 4169c194644SDarrick J. Wong struct xfs_trans *tp; 4179c194644SDarrick J. Wong struct xfs_btree_cur *rcur = NULL; 4189e88b5d8SDarrick J. Wong 4199e88b5d8SDarrick J. Wong ASSERT(!test_bit(XFS_RUI_RECOVERED, &ruip->rui_flags)); 4209e88b5d8SDarrick J. Wong 4219e88b5d8SDarrick J. Wong /* 4229e88b5d8SDarrick J. Wong * First check the validity of the extents described by the 4239e88b5d8SDarrick J. Wong * RUI. If any are bad, then assume that all are bad and 4249e88b5d8SDarrick J. Wong * just toss the RUI. 4259e88b5d8SDarrick J. Wong */ 4269e88b5d8SDarrick J. Wong for (i = 0; i < ruip->rui_format.rui_nextents; i++) { 427e127fafdSDarrick J. Wong rmap = &ruip->rui_format.rui_extents[i]; 4289e88b5d8SDarrick J. Wong startblock_fsb = XFS_BB_TO_FSB(mp, 4299e88b5d8SDarrick J. Wong XFS_FSB_TO_DADDR(mp, rmap->me_startblock)); 4309e88b5d8SDarrick J. Wong switch (rmap->me_flags & XFS_RMAP_EXTENT_TYPE_MASK) { 4319e88b5d8SDarrick J. Wong case XFS_RMAP_EXTENT_MAP: 4320e07c039SDarrick J. Wong case XFS_RMAP_EXTENT_MAP_SHARED: 4339e88b5d8SDarrick J. Wong case XFS_RMAP_EXTENT_UNMAP: 4340e07c039SDarrick J. Wong case XFS_RMAP_EXTENT_UNMAP_SHARED: 4359e88b5d8SDarrick J. Wong case XFS_RMAP_EXTENT_CONVERT: 4360e07c039SDarrick J. Wong case XFS_RMAP_EXTENT_CONVERT_SHARED: 4379e88b5d8SDarrick J. Wong case XFS_RMAP_EXTENT_ALLOC: 4389e88b5d8SDarrick J. Wong case XFS_RMAP_EXTENT_FREE: 4399e88b5d8SDarrick J. Wong op_ok = true; 4409e88b5d8SDarrick J. Wong break; 4419e88b5d8SDarrick J. Wong default: 4429e88b5d8SDarrick J. Wong op_ok = false; 4439e88b5d8SDarrick J. Wong break; 4449e88b5d8SDarrick J. Wong } 445e127fafdSDarrick J. Wong if (!op_ok || startblock_fsb == 0 || 446e127fafdSDarrick J. Wong rmap->me_len == 0 || 447e127fafdSDarrick J. Wong startblock_fsb >= mp->m_sb.sb_dblocks || 448e127fafdSDarrick J. Wong rmap->me_len >= mp->m_sb.sb_agblocks || 4499e88b5d8SDarrick J. Wong (rmap->me_flags & ~XFS_RMAP_EXTENT_FLAGS)) { 4509e88b5d8SDarrick J. Wong /* 4519e88b5d8SDarrick J. Wong * This will pull the RUI from the AIL and 4529e88b5d8SDarrick J. Wong * free the memory associated with it. 4539e88b5d8SDarrick J. Wong */ 4549e88b5d8SDarrick J. Wong set_bit(XFS_RUI_RECOVERED, &ruip->rui_flags); 4559e88b5d8SDarrick J. Wong xfs_rui_release(ruip); 4569e88b5d8SDarrick J. Wong return -EIO; 4579e88b5d8SDarrick J. Wong } 4589e88b5d8SDarrick J. Wong } 4599e88b5d8SDarrick J. Wong 460b31c2bdcSDarrick J. Wong error = xfs_trans_alloc(mp, &M_RES(mp)->tr_itruncate, 461b31c2bdcSDarrick J. Wong mp->m_rmap_maxlevels, 0, XFS_TRANS_RESERVE, &tp); 4629c194644SDarrick J. Wong if (error) 4639c194644SDarrick J. Wong return error; 464722e2517SDarrick J. Wong rudp = xfs_trans_get_rud(tp, ruip); 4659c194644SDarrick J. Wong 4669c194644SDarrick J. Wong for (i = 0; i < ruip->rui_format.rui_nextents; i++) { 467e127fafdSDarrick J. Wong rmap = &ruip->rui_format.rui_extents[i]; 4689c194644SDarrick J. Wong state = (rmap->me_flags & XFS_RMAP_EXTENT_UNWRITTEN) ? 4699c194644SDarrick J. Wong XFS_EXT_UNWRITTEN : XFS_EXT_NORM; 4709c194644SDarrick J. Wong whichfork = (rmap->me_flags & XFS_RMAP_EXTENT_ATTR_FORK) ? 4719c194644SDarrick J. Wong XFS_ATTR_FORK : XFS_DATA_FORK; 4729c194644SDarrick J. Wong switch (rmap->me_flags & XFS_RMAP_EXTENT_TYPE_MASK) { 4739c194644SDarrick J. Wong case XFS_RMAP_EXTENT_MAP: 4749c194644SDarrick J. Wong type = XFS_RMAP_MAP; 4759c194644SDarrick J. Wong break; 476ceeb9c83SDarrick J. Wong case XFS_RMAP_EXTENT_MAP_SHARED: 477ceeb9c83SDarrick J. Wong type = XFS_RMAP_MAP_SHARED; 478ceeb9c83SDarrick J. Wong break; 4799c194644SDarrick J. Wong case XFS_RMAP_EXTENT_UNMAP: 4809c194644SDarrick J. Wong type = XFS_RMAP_UNMAP; 4819c194644SDarrick J. Wong break; 482ceeb9c83SDarrick J. Wong case XFS_RMAP_EXTENT_UNMAP_SHARED: 483ceeb9c83SDarrick J. Wong type = XFS_RMAP_UNMAP_SHARED; 484ceeb9c83SDarrick J. Wong break; 4859c194644SDarrick J. Wong case XFS_RMAP_EXTENT_CONVERT: 4869c194644SDarrick J. Wong type = XFS_RMAP_CONVERT; 4879c194644SDarrick J. Wong break; 4883f165b33SDarrick J. Wong case XFS_RMAP_EXTENT_CONVERT_SHARED: 4893f165b33SDarrick J. Wong type = XFS_RMAP_CONVERT_SHARED; 4903f165b33SDarrick J. Wong break; 4919c194644SDarrick J. Wong case XFS_RMAP_EXTENT_ALLOC: 4929c194644SDarrick J. Wong type = XFS_RMAP_ALLOC; 4939c194644SDarrick J. Wong break; 4949c194644SDarrick J. Wong case XFS_RMAP_EXTENT_FREE: 4959c194644SDarrick J. Wong type = XFS_RMAP_FREE; 4969c194644SDarrick J. Wong break; 4979c194644SDarrick J. Wong default: 4989c194644SDarrick J. Wong error = -EFSCORRUPTED; 4999c194644SDarrick J. Wong goto abort_error; 5009c194644SDarrick J. Wong } 5019c194644SDarrick J. Wong error = xfs_trans_log_finish_rmap_update(tp, rudp, type, 5029c194644SDarrick J. Wong rmap->me_owner, whichfork, 5039c194644SDarrick J. Wong rmap->me_startoff, rmap->me_startblock, 5049c194644SDarrick J. Wong rmap->me_len, state, &rcur); 5059c194644SDarrick J. Wong if (error) 5069c194644SDarrick J. Wong goto abort_error; 5079c194644SDarrick J. Wong 5089c194644SDarrick J. Wong } 5099c194644SDarrick J. Wong 5109c194644SDarrick J. Wong xfs_rmap_finish_one_cleanup(tp, rcur, error); 5119e88b5d8SDarrick J. Wong set_bit(XFS_RUI_RECOVERED, &ruip->rui_flags); 5129c194644SDarrick J. Wong error = xfs_trans_commit(tp); 5139c194644SDarrick J. Wong return error; 5149c194644SDarrick J. Wong 5159c194644SDarrick J. Wong abort_error: 5169c194644SDarrick J. Wong xfs_rmap_finish_one_cleanup(tp, rcur, error); 5179c194644SDarrick J. Wong xfs_trans_cancel(tp); 5189e88b5d8SDarrick J. Wong return error; 5199e88b5d8SDarrick J. Wong } 520