diff options
Diffstat (limited to 'fs/xfs/xfs_log_recover.c')
| -rw-r--r-- | fs/xfs/xfs_log_recover.c | 620 |
1 files changed, 243 insertions, 377 deletions
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 966d3f97458c..204d8e5fa7fa 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -53,6 +53,17 @@ STATIC void xlog_recover_check_summary(xlog_t *); #endif /* + * This structure is used during recovery to record the buf log items which + * have been canceled and should not be replayed. + */ +struct xfs_buf_cancel { + xfs_daddr_t bc_blkno; + uint bc_len; + int bc_refcount; + struct list_head bc_list; +}; + +/* * Sector aligned buffer routines for buffer create/read/write/access */ @@ -925,12 +936,12 @@ xlog_find_tail( log->l_curr_cycle = be32_to_cpu(rhead->h_cycle); if (found == 2) log->l_curr_cycle++; - log->l_tail_lsn = be64_to_cpu(rhead->h_tail_lsn); - log->l_last_sync_lsn = be64_to_cpu(rhead->h_lsn); - log->l_grant_reserve_cycle = log->l_curr_cycle; - log->l_grant_reserve_bytes = BBTOB(log->l_curr_block); - log->l_grant_write_cycle = log->l_curr_cycle; - log->l_grant_write_bytes = BBTOB(log->l_curr_block); + atomic64_set(&log->l_tail_lsn, be64_to_cpu(rhead->h_tail_lsn)); + atomic64_set(&log->l_last_sync_lsn, be64_to_cpu(rhead->h_lsn)); + xlog_assign_grant_head(&log->l_grant_reserve_head, log->l_curr_cycle, + BBTOB(log->l_curr_block)); + xlog_assign_grant_head(&log->l_grant_write_head, log->l_curr_cycle, + BBTOB(log->l_curr_block)); /* * Look for unmount record. If we find it, then we know there @@ -960,7 +971,7 @@ xlog_find_tail( } after_umount_blk = (i + hblks + (int) BTOBB(be32_to_cpu(rhead->h_len))) % log->l_logBBsize; - tail_lsn = log->l_tail_lsn; + tail_lsn = atomic64_read(&log->l_tail_lsn); if (*head_blk == after_umount_blk && be32_to_cpu(rhead->h_num_logops) == 1) { umount_data_blk = (i + hblks) % log->l_logBBsize; @@ -975,12 +986,10 @@ xlog_find_tail( * log records will point recovery to after the * current unmount record. */ - log->l_tail_lsn = - xlog_assign_lsn(log->l_curr_cycle, - after_umount_blk); - log->l_last_sync_lsn = - xlog_assign_lsn(log->l_curr_cycle, - after_umount_blk); + xlog_assign_atomic_lsn(&log->l_tail_lsn, + log->l_curr_cycle, after_umount_blk); + xlog_assign_atomic_lsn(&log->l_last_sync_lsn, + log->l_curr_cycle, after_umount_blk); *tail_blk = after_umount_blk; /* @@ -1605,82 +1614,45 @@ xlog_recover_reorder_trans( * record in the table to tell us how many times we expect to see this * record during the second pass. */ -STATIC void -xlog_recover_do_buffer_pass1( - xlog_t *log, - xfs_buf_log_format_t *buf_f) +STATIC int +xlog_recover_buffer_pass1( + struct log *log, + xlog_recover_item_t *item) { - xfs_buf_cancel_t *bcp; - xfs_buf_cancel_t *nextp; - xfs_buf_cancel_t *prevp; - xfs_buf_cancel_t **bucket; - xfs_daddr_t blkno = 0; - uint len = 0; - ushort flags = 0; - - switch (buf_f->blf_type) { - case XFS_LI_BUF: - blkno = buf_f->blf_blkno; - len = buf_f->blf_len; - flags = buf_f->blf_flags; - break; - } + xfs_buf_log_format_t *buf_f = item->ri_buf[0].i_addr; + struct list_head *bucket; + struct xfs_buf_cancel *bcp; /* * If this isn't a cancel buffer item, then just return. */ - if (!(flags & XFS_BLF_CANCEL)) { + if (!(buf_f->blf_flags & XFS_BLF_CANCEL)) { trace_xfs_log_recover_buf_not_cancel(log, buf_f); - return; - } - - /* - * Insert an xfs_buf_cancel record into the hash table of - * them. If there is already an identical record, bump - * its reference count. - */ - bucket = &log->l_buf_cancel_table[(__uint64_t)blkno % - XLOG_BC_TABLE_SIZE]; - /* - * If the hash bucket is empty then just insert a new record into - * the bucket. - */ - if (*bucket == NULL) { - bcp = (xfs_buf_cancel_t *)kmem_alloc(sizeof(xfs_buf_cancel_t), - KM_SLEEP); - bcp->bc_blkno = blkno; - bcp->bc_len = len; - bcp->bc_refcount = 1; - bcp->bc_next = NULL; - *bucket = bcp; - return; + return 0; } /* - * The hash bucket is not empty, so search for duplicates of our - * record. If we find one them just bump its refcount. If not - * then add us at the end of the list. + * Insert an xfs_buf_cancel record into the hash table of them. + * If there is already an identical record, bump its reference count. */ - prevp = NULL; - nextp = *bucket; - while (nextp != NULL) { - if (nextp->bc_blkno == blkno && nextp->bc_len == len) { - nextp->bc_refcount++; + bucket = XLOG_BUF_CANCEL_BUCKET(log, buf_f->blf_blkno); + list_for_each_entry(bcp, bucket, bc_list) { + if (bcp->bc_blkno == buf_f->blf_blkno && + bcp->bc_len == buf_f->blf_len) { + bcp->bc_refcount++; trace_xfs_log_recover_buf_cancel_ref_inc(log, buf_f); - return; + return 0; } - prevp = nextp; - nextp = nextp->bc_next; - } - ASSERT(prevp != NULL); - bcp = (xfs_buf_cancel_t *)kmem_alloc(sizeof(xfs_buf_cancel_t), - KM_SLEEP); - bcp->bc_blkno = blkno; - bcp->bc_len = len; + } + + bcp = kmem_alloc(sizeof(struct xfs_buf_cancel), KM_SLEEP); + bcp->bc_blkno = buf_f->blf_blkno; + bcp->bc_len = buf_f->blf_len; bcp->bc_refcount = 1; - bcp->bc_next = NULL; - prevp->bc_next = bcp; + list_add_tail(&bcp->bc_list, bucket); + trace_xfs_log_recover_buf_cancel_add(log, buf_f); + return 0; } /* @@ -1698,14 +1670,13 @@ xlog_recover_do_buffer_pass1( */ STATIC int xlog_check_buffer_cancelled( - xlog_t *log, + struct log *log, xfs_daddr_t blkno, uint len, ushort flags) { - xfs_buf_cancel_t *bcp; - xfs_buf_cancel_t *prevp; - xfs_buf_cancel_t **bucket; + struct list_head *bucket; + struct xfs_buf_cancel *bcp; if (log->l_buf_cancel_table == NULL) { /* @@ -1716,128 +1687,70 @@ xlog_check_buffer_cancelled( return 0; } - bucket = &log->l_buf_cancel_table[(__uint64_t)blkno % - XLOG_BC_TABLE_SIZE]; - bcp = *bucket; - if (bcp == NULL) { - /* - * There is no corresponding entry in the table built - * in pass one, so this buffer has not been cancelled. - */ - ASSERT(!(flags & XFS_BLF_CANCEL)); - return 0; - } - /* - * Search for an entry in the buffer cancel table that - * matches our buffer. + * Search for an entry in the cancel table that matches our buffer. */ - prevp = NULL; - while (bcp != NULL) { - if (bcp->bc_blkno == blkno && bcp->bc_len == len) { - /* - * We've go a match, so return 1 so that the - * recovery of this buffer is cancelled. - * If this buffer is actually a buffer cancel - * log item, then decrement the refcount on the - * one in the table and remove it if this is the - * last reference. - */ - if (flags & XFS_BLF_CANCEL) { - bcp->bc_refcount--; - if (bcp->bc_refcount == 0) { - if (prevp == NULL) { - *bucket = bcp->bc_next; - } else { - prevp->bc_next = bcp->bc_next; - } - kmem_free(bcp); - } - } - return 1; - } - prevp = bcp; - bcp = bcp->bc_next; + bucket = XLOG_BUF_CANCEL_BUCKET(log, blkno); + list_for_each_entry(bcp, bucket, bc_list) { + if (bcp->bc_blkno == blkno && bcp->bc_len == len) + goto found; } + /* - * We didn't find a corresponding entry in the table, so - * return 0 so that the buffer is NOT cancelled. + * We didn't find a corresponding entry in the table, so return 0 so + * that the buffer is NOT cancelled. */ ASSERT(!(flags & XFS_BLF_CANCEL)); return 0; -} -STATIC int -xlog_recover_do_buffer_pass2( - xlog_t *log, - xfs_buf_log_format_t *buf_f) -{ - xfs_daddr_t blkno = 0; - ushort flags = 0; - uint len = 0; - - switch (buf_f->blf_type) { - case XFS_LI_BUF: - blkno = buf_f->blf_blkno; - flags = buf_f->blf_flags; - len = buf_f->blf_len; - break; +found: + /* + * We've go a match, so return 1 so that the recovery of this buffer + * is cancelled. If this buffer is actually a buffer cancel log + * item, then decrement the refcount on the one in the table and + * remove it if this is the last reference. + */ + if (flags & XFS_BLF_CANCEL) { + if (--bcp->bc_refcount == 0) { + list_del(&bcp->bc_list); + kmem_free(bcp); + } } - - return xlog_check_buffer_cancelled(log, blkno, len, flags); + return 1; } /* - * Perform recovery for a buffer full of inodes. In these buffers, - * the only data which should be recovered is that which corresponds - * to the di_next_unlinked pointers in the on disk inode structures. - * The rest of the data for the inodes is always logged through the - * inodes themselves rather than the inode buffer and is recovered - * in xlog_recover_do_inode_trans(). + * Perform recovery for a buffer full of inodes. In these buffers, the only + * data which should be recovered is that which corresponds to the + * di_next_unlinked pointers in the on disk inode structures. The rest of the + * data for the inodes is always logged through the inodes themselves rather + * than the inode buffer and is recovered in xlog_recover_inode_pass2(). * - * The only time when buffers full of inodes are fully recovered is - * when the buffer is full of newly allocated inodes. In this case - * the buffer will not be marked as an inode buffer and so will be - * sent to xlog_recover_do_reg_buffer() below during recovery. + * The only time when buffers full of inodes are fully recovered is when the + * buffer is full of newly allocated inodes. In this case the buffer will + * not be marked as an inode buffer and so will be sent to + * xlog_recover_do_reg_buffer() below during recovery. */ STATIC int xlog_recover_do_inode_buffer( - xfs_mount_t *mp, + struct xfs_mount *mp, xlog_recover_item_t *item, - xfs_buf_t *bp, + struct xfs_buf *bp, xfs_buf_log_format_t *buf_f) { int i; - int item_index; - int bit; - int nbits; - int reg_buf_offset; - int reg_buf_bytes; + int item_index = 0; + int bit = 0; + int nbits = 0; + int reg_buf_offset = 0; + int reg_buf_bytes = 0; int next_unlinked_offset; int inodes_per_buf; xfs_agino_t *logged_nextp; xfs_agino_t *buffer_nextp; - unsigned int *data_map = NULL; - unsigned int map_size = 0; trace_xfs_log_recover_buf_inode_buf(mp->m_log, buf_f); - switch (buf_f->blf_type) { - case XFS_LI_BUF: - data_map = buf_f->blf_data_map; - map_size = buf_f->blf_map_size; - break; - } - /* - * Set the variables corresponding to the current region to - * 0 so that we'll initialize them on the first pass through - * the loop. - */ - reg_buf_offset = 0; - reg_buf_bytes = 0; - bit = 0; - nbits = 0; - item_index = 0; inodes_per_buf = XFS_BUF_COUNT(bp) >> mp->m_sb.sb_inodelog; for (i = 0; i < inodes_per_buf; i++) { next_unlinked_offset = (i * mp->m_sb.sb_inodesize) + @@ -1852,18 +1765,18 @@ xlog_recover_do_inode_buffer( * the current di_next_unlinked field. */ bit += nbits; - bit = xfs_next_bit(data_map, map_size, bit); + bit = xfs_next_bit(buf_f->blf_data_map, + buf_f->blf_map_size, bit); /* * If there are no more logged regions in the * buffer, then we're done. */ - if (bit == -1) { + if (bit == -1) return 0; - } - nbits = xfs_contig_bits(data_map, map_size, - bit); + nbits = xfs_contig_bits(buf_f->blf_data_map, + buf_f->blf_map_size, bit); ASSERT(nbits > 0); reg_buf_offset = bit << XFS_BLF_SHIFT; reg_buf_bytes = nbits << XFS_BLF_SHIFT; @@ -1875,9 +1788,8 @@ xlog_recover_do_inode_buffer( * di_next_unlinked field, then move on to the next * di_next_unlinked field. */ - if (next_unlinked_offset < reg_buf_offset) { + if (next_unlinked_offset < reg_buf_offset) continue; - } ASSERT(item->ri_buf[item_index].i_addr != NULL); ASSERT((item->ri_buf[item_index].i_len % XFS_BLF_CHUNK) == 0); @@ -1913,36 +1825,29 @@ xlog_recover_do_inode_buffer( * given buffer. The bitmap in the buf log format structure indicates * where to place the logged data. */ -/*ARGSUSED*/ STATIC void xlog_recover_do_reg_buffer( struct xfs_mount *mp, xlog_recover_item_t *item, - xfs_buf_t *bp, + struct xfs_buf *bp, xfs_buf_log_format_t *buf_f) { int i; int bit; int nbits; - unsigned int *data_map = NULL; - unsigned int map_size = 0; int error; trace_xfs_log_recover_buf_reg_buf(mp->m_log, buf_f); - switch (buf_f->blf_type) { - case XFS_LI_BUF: - data_map = buf_f->blf_data_map; - map_size = buf_f->blf_map_size; - break; - } bit = 0; i = 1; /* 0 is the buf format structure */ while (1) { - bit = xfs_next_bit(data_map, map_size, bit); + bit = xfs_next_bit(buf_f->blf_data_map, + buf_f->blf_map_size, bit); if (bit == -1) break; - nbits = xfs_contig_bits(data_map, map_size, bit); + nbits = xfs_contig_bits(buf_f->blf_data_map, + buf_f->blf_map_size, bit); ASSERT(nbits > 0); ASSERT(item->ri_buf[i].i_addr != NULL); ASSERT(item->ri_buf[i].i_len % XFS_BLF_CHUNK == 0); @@ -2176,77 +2081,46 @@ xlog_recover_do_dquot_buffer( * for more details on the implementation of the table of cancel records. */ STATIC int -xlog_recover_do_buffer_trans( +xlog_recover_buffer_pass2( xlog_t *log, - xlog_recover_item_t *item, - int pass) + xlog_recover_item_t *item) { xfs_buf_log_format_t *buf_f = item->ri_buf[0].i_addr; - xfs_mount_t *mp; + xfs_mount_t *mp = log->l_mp; xfs_buf_t *bp; int error; - int cancel; - xfs_daddr_t blkno; - int len; - ushort flags; uint buf_flags; - if (pass == XLOG_RECOVER_PASS1) { - /* - * In this pass we're only looking for buf items - * with the XFS_BLF_CANCEL bit set. - */ - xlog_recover_do_buffer_pass1(log, buf_f); + /* + * In this pass we only want to recover all the buffers which have + * not been cancelled and are not cancellation buffers themselves. + */ + if (xlog_check_buffer_cancelled(log, buf_f->blf_blkno, + buf_f->blf_len, buf_f->blf_flags)) { + trace_xfs_log_recover_buf_cancel(log, buf_f); return 0; - } else { - /* - * In this pass we want to recover all the buffers - * which have not been cancelled and are not - * cancellation buffers themselves. The routine - * we call here will tell us whether or not to - * continue with the replay of this buffer. - */ - cancel = xlog_recover_do_buffer_pass2(log, buf_f); - if (cancel) { - trace_xfs_log_recover_buf_cancel(log, buf_f); - return 0; - } } + trace_xfs_log_recover_buf_recover(log, buf_f); - switch (buf_f->blf_type) { - case XFS_LI_BUF: - blkno = buf_f->blf_blkno; - len = buf_f->blf_len; - flags = buf_f->blf_flags; - break; - default: - xfs_fs_cmn_err(CE_ALERT, log->l_mp, - "xfs_log_recover: unknown buffer type 0x%x, logdev %s", - buf_f->blf_type, log->l_mp->m_logname ? - log->l_mp->m_logname : "internal"); - XFS_ERROR_REPORT("xlog_recover_do_buffer_trans", - XFS_ERRLEVEL_LOW, log->l_mp); - return XFS_ERROR(EFSCORRUPTED); - } - mp = log->l_mp; buf_flags = XBF_LOCK; - if (!(flags & XFS_BLF_INODE_BUF)) + if (!(buf_f->blf_flags & XFS_BLF_INODE_BUF)) buf_flags |= XBF_MAPPED; - bp = xfs_buf_read(mp->m_ddev_targp, blkno, len, buf_flags); + bp = xfs_buf_read(mp->m_ddev_targp, buf_f->blf_blkno, buf_f->blf_len, + buf_flags); if (XFS_BUF_ISERROR(bp)) { - xfs_ioerror_alert("xlog_recover_do..(read#1)", log->l_mp, - bp, blkno); + xfs_ioerror_alert("xlog_recover_do..(read#1)", mp, + bp, buf_f->blf_blkno); error = XFS_BUF_GETERROR(bp); xfs_buf_relse(bp); return error; } error = 0; - if (flags & XFS_BLF_INODE_BUF) { + if (buf_f->blf_flags & XFS_BLF_INODE_BUF) { error = xlog_recover_do_inode_buffer(mp, item, bp, buf_f); - } else if (flags & + } else if (buf_f->blf_flags & (XFS_BLF_UDQUOT_BUF|XFS_BLF_PDQUOT_BUF|XFS_BLF_GDQUOT_BUF)) { xlog_recover_do_dquot_buffer(mp, log, item, bp, buf_f); } else { @@ -2286,16 +2160,14 @@ xlog_recover_do_buffer_trans( } STATIC int -xlog_recover_do_inode_trans( +xlog_recover_inode_pass2( xlog_t *log, - xlog_recover_item_t *item, - int pass) + xlog_recover_item_t *item) { xfs_inode_log_format_t *in_f; - xfs_mount_t *mp; + xfs_mount_t *mp = log->l_mp; xfs_buf_t *bp; xfs_dinode_t *dip; - xfs_ino_t ino; int len; xfs_caddr_t src; xfs_caddr_t dest; @@ -2305,10 +2177,6 @@ xlog_recover_do_inode_trans( xfs_icdinode_t *dicp; int need_free = 0; - if (pass == XLOG_RECOVER_PASS1) { - return 0; - } - if (item->ri_buf[0].i_len == sizeof(xfs_inode_log_format_t)) { in_f = item->ri_buf[0].i_addr; } else { @@ -2318,8 +2186,6 @@ xlog_recover_do_inode_trans( if (error) goto error; } - ino = in_f->ilf_ino; - mp = log->l_mp; /* * Inode buffers can be freed, look out for it, @@ -2354,8 +2220,8 @@ xlog_recover_do_inode_trans( xfs_buf_relse(bp); xfs_fs_cmn_err(CE_ALERT, mp, "xfs_inode_recover: Bad inode magic number, dino ptr = 0x%p, dino bp = 0x%p, ino = %Ld", - dip, bp, ino); - XFS_ERROR_REPORT("xlog_recover_do_inode_trans(1)", + dip, bp, in_f->ilf_ino); + XFS_ERROR_REPORT("xlog_recover_inode_pass2(1)", XFS_ERRLEVEL_LOW, mp); error = EFSCORRUPTED; goto error; @@ -2365,8 +2231,8 @@ xlog_recover_do_inode_trans( xfs_buf_relse(bp); xfs_fs_cmn_err(CE_ALERT, mp, "xfs_inode_recover: Bad inode log record, rec ptr 0x%p, ino %Ld", - item, ino); - XFS_ERROR_REPORT("xlog_recover_do_inode_trans(2)", + item, in_f->ilf_ino); + XFS_ERROR_REPORT("xlog_recover_inode_pass2(2)", XFS_ERRLEVEL_LOW, mp); error = EFSCORRUPTED; goto error; @@ -2394,12 +2260,12 @@ xlog_recover_do_inode_trans( if (unlikely((dicp->di_mode & S_IFMT) == S_IFREG)) { if ((dicp->di_format != XFS_DINODE_FMT_EXTENTS) && (dicp->di_format != XFS_DINODE_FMT_BTREE)) { - XFS_CORRUPTION_ERROR("xlog_recover_do_inode_trans(3)", + XFS_CORRUPTION_ERROR("xlog_recover_inode_pass2(3)", XFS_ERRLEVEL_LOW, mp, dicp); xfs_buf_relse(bp); xfs_fs_cmn_err(CE_ALERT, mp, "xfs_inode_recover: Bad regular inode log record, rec ptr 0x%p, ino ptr = 0x%p, ino bp = 0x%p, ino %Ld", - item, dip, bp, ino); + item, dip, bp, in_f->ilf_ino); error = EFSCORRUPTED; goto error; } @@ -2407,40 +2273,40 @@ xlog_recover_do_inode_trans( if ((dicp->di_format != XFS_DINODE_FMT_EXTENTS) && (dicp->di_format != XFS_DINODE_FMT_BTREE) && (dicp->di_format != XFS_DINODE_FMT_LOCAL)) { - XFS_CORRUPTION_ERROR("xlog_recover_do_inode_trans(4)", + XFS_CORRUPTION_ERROR("xlog_recover_inode_pass2(4)", XFS_ERRLEVEL_LOW, mp, dicp); xfs_buf_relse(bp); xfs_fs_cmn_err(CE_ALERT, mp, "xfs_inode_recover: Bad dir inode log record, rec ptr 0x%p, ino ptr = 0x%p, ino bp = 0x%p, ino %Ld", - item, dip, bp, ino); + item, dip, bp, in_f->ilf_ino); error = EFSCORRUPTED; goto error; } } if (unlikely(dicp->di_nextents + dicp->di_anextents > dicp->di_nblocks)){ - XFS_CORRUPTION_ERROR("xlog_recover_do_inode_trans(5)", + XFS_CORRUPTION_ERROR("xlog_recover_inode_pass2(5)", XFS_ERRLEVEL_LOW, mp, dicp); xfs_buf_relse(bp); xfs_fs_cmn_err(CE_ALERT, mp, "xfs_inode_recover: Bad inode log record, rec ptr 0x%p, dino ptr 0x%p, dino bp 0x%p, ino %Ld, total extents = %d, nblocks = %Ld", - item, dip, bp, ino, + item, dip, bp, in_f->ilf_ino, dicp->di_nextents + dicp->di_anextents, dicp->di_nblocks); error = EFSCORRUPTED; goto error; } if (unlikely(dicp->di_forkoff > mp->m_sb.sb_inodesize)) { - XFS_CORRUPTION_ERROR("xlog_recover_do_inode_trans(6)", + XFS_CORRUPTION_ERROR("xlog_recover_inode_pass2(6)", XFS_ERRLEVEL_LOW, mp, dicp); xfs_buf_relse(bp); xfs_fs_cmn_err(CE_ALERT, mp, "xfs_inode_recover: Bad inode log rec ptr 0x%p, dino ptr 0x%p, dino bp 0x%p, ino %Ld, forkoff 0x%x", - item, dip, bp, ino, dicp->di_forkoff); + item, dip, bp, in_f->ilf_ino, dicp->di_forkoff); error = EFSCORRUPTED; goto error; } if (unlikely(item->ri_buf[1].i_len > sizeof(struct xfs_icdinode))) { - XFS_CORRUPTION_ERROR("xlog_recover_do_inode_trans(7)", + XFS_CORRUPTION_ERROR("xlog_recover_inode_pass2(7)", XFS_ERRLEVEL_LOW, mp, dicp); xfs_buf_relse(bp); xfs_fs_cmn_err(CE_ALERT, mp, @@ -2532,7 +2398,7 @@ xlog_recover_do_inode_trans( break; default: - xlog_warn("XFS: xlog_recover_do_inode_trans: Invalid flag"); + xlog_warn("XFS: xlog_recover_inode_pass2: Invalid flag"); ASSERT(0); xfs_buf_relse(bp); error = EIO; @@ -2556,18 +2422,11 @@ error: * of that type. */ STATIC int -xlog_recover_do_quotaoff_trans( +xlog_recover_quotaoff_pass1( xlog_t *log, - xlog_recover_item_t *item, - int pass) + xlog_recover_item_t *item) { - xfs_qoff_logformat_t *qoff_f; - - if (pass == XLOG_RECOVER_PASS2) { - return (0); - } - - qoff_f = item->ri_buf[0].i_addr; + xfs_qoff_logformat_t *qoff_f = item->ri_buf[0].i_addr; ASSERT(qoff_f); /* @@ -2588,22 +2447,17 @@ xlog_recover_do_quotaoff_trans( * Recover a dquot record */ STATIC int -xlog_recover_do_dquot_trans( +xlog_recover_dquot_pass2( xlog_t *log, - xlog_recover_item_t *item, - int pass) + xlog_recover_item_t *item) { - xfs_mount_t *mp; + xfs_mount_t *mp = log->l_mp; xfs_buf_t *bp; struct xfs_disk_dquot *ddq, *recddq; int error; xfs_dq_logformat_t *dq_f; uint type; - if (pass == XLOG_RECOVER_PASS1) { - return 0; - } - mp = log->l_mp; /* * Filesystems are required to send in quota flags at mount time. @@ -2647,7 +2501,7 @@ xlog_recover_do_dquot_trans( if ((error = xfs_qm_dqcheck(recddq, dq_f->qlf_id, 0, XFS_QMOPT_DOWARN, - "xlog_recover_do_dquot_trans (log copy)"))) { + "xlog_recover_dquot_pass2 (log copy)"))) { return XFS_ERROR(EIO); } ASSERT(dq_f->qlf_len == 1); @@ -2670,7 +2524,7 @@ xlog_recover_do_dquot_trans( * minimal initialization then. */ if (xfs_qm_dqcheck(ddq, dq_f->qlf_id, 0, XFS_QMOPT_DOWARN, - "xlog_recover_do_dquot_trans")) { + "xlog_recover_dquot_pass2")) { xfs_buf_relse(bp); return XFS_ERROR(EIO); } @@ -2693,38 +2547,31 @@ xlog_recover_do_dquot_trans( * LSN. */ STATIC int -xlog_recover_do_efi_trans( +xlog_recover_efi_pass2( xlog_t *log, xlog_recover_item_t *item, - xfs_lsn_t lsn, - int pass) + xfs_lsn_t lsn) { int error; - xfs_mount_t *mp; + xfs_mount_t *mp = log->l_mp; xfs_efi_log_item_t *efip; xfs_efi_log_format_t *efi_formatp; - if (pass == XLOG_RECOVER_PASS1) { - return 0; - } - efi_formatp = item->ri_buf[0].i_addr; - mp = log->l_mp; efip = xfs_efi_init(mp, efi_formatp->efi_nextents); if ((error = xfs_efi_copy_format(&(item->ri_buf[0]), &(efip->efi_format)))) { xfs_efi_item_free(efip); return error; } - efip->efi_next_extent = efi_formatp->efi_nextents; - efip->efi_flags |= XFS_EFI_COMMITTED; + atomic_set(&efip->efi_next_extent, efi_formatp->efi_nextents); spin_lock(&log->l_ailp->xa_lock); /* * xfs_trans_ail_update() drops the AIL lock. */ - xfs_trans_ail_update(log->l_ailp, (xfs_log_item_t *)efip, lsn); + xfs_trans_ail_update(log->l_ailp, &efip->efi_item, lsn); return 0; } @@ -2737,11 +2584,10 @@ xlog_recover_do_efi_trans( * efd format structure. If we find it, we remove the efi from the * AIL and free it. */ -STATIC void -xlog_recover_do_efd_trans( +STATIC int +xlog_recover_efd_pass2( xlog_t *log, - xlog_recover_item_t *item, - int pass) + xlog_recover_item_t *item) { xfs_efd_log_format_t *efd_formatp; xfs_efi_log_item_t *efip = NULL; @@ -2750,10 +2596,6 @@ xlog_recover_do_efd_trans( struct xfs_ail_cursor cur; struct xfs_ail *ailp = log->l_ailp; - if (pass == XLOG_RECOVER_PASS1) { - return; - } - efd_formatp = item->ri_buf[0].i_addr; ASSERT((item->ri_buf[0].i_len == (sizeof(xfs_efd_log_format_32_t) + ((efd_formatp->efd_nextents - 1) * sizeof(xfs_extent_32_t)))) || @@ -2785,62 +2627,6 @@ xlog_recover_do_efd_trans( } xfs_trans_ail_cursor_done(ailp, &cur); spin_unlock(&ailp->xa_lock); -} - -/* - * Perform the transaction - * - * If the transaction modifies a buffer or inode, do it now. Otherwise, - * EFIs and EFDs get queued up by adding entries into the AIL for them. - */ -STATIC int -xlog_recover_do_trans( - xlog_t *log, - xlog_recover_t *trans, - int pass) -{ - int error = 0; - xlog_recover_item_t *item; - - error = xlog_recover_reorder_trans(log, trans, pass); - if (error) - return error; - - list_for_each_entry(item, &trans->r_itemq, ri_list) { - trace_xfs_log_recover_item_recover(log, trans, item, pass); - switch (ITEM_TYPE(item)) { - case XFS_LI_BUF: - error = xlog_recover_do_buffer_trans(log, item, pass); - break; - case XFS_LI_INODE: - error = xlog_recover_do_inode_trans(log, item, pass); - break; - case XFS_LI_EFI: - error = xlog_recover_do_efi_trans(log, item, - trans->r_lsn, pass); - break; - case XFS_LI_EFD: - xlog_recover_do_efd_trans(log, item, pass); - error = 0; - break; - case XFS_LI_DQUOT: - error = xlog_recover_do_dquot_trans(log, item, pass); - break; - case XFS_LI_QUOTAOFF: - error = xlog_recover_do_quotaoff_trans(log, item, - pass); - break; - default: - xlog_warn( - "XFS: invalid item type (%d) xlog_recover_do_trans", ITEM_TYPE(item)); - ASSERT(0); - error = XFS_ERROR(EIO); - break; - } - - if (error) - return error; - } return 0; } @@ -2852,7 +2638,7 @@ xlog_recover_do_trans( */ STATIC void xlog_recover_free_trans( - xlog_recover_t *trans) + struct xlog_recover *trans) { xlog_recover_item_t *item, *n; int i; @@ -2871,17 +2657,95 @@ xlog_recover_free_trans( } STATIC int +xlog_recover_commit_pass1( + struct log *log, + struct xlog_recover *trans, + xlog_recover_item_t *item) +{ + trace_xfs_log_recover_item_recover(log, trans, item, XLOG_RECOVER_PASS1); + + switch (ITEM_TYPE(item)) { + case XFS_LI_BUF: + return xlog_recover_buffer_pass1(log, item); + case XFS_LI_QUOTAOFF: + return xlog_recover_quotaoff_pass1(log, item); + case XFS_LI_INODE: + case XFS_LI_EFI: + case XFS_LI_EFD: + case XFS_LI_DQUOT: + /* nothing to do in pass 1 */ + return 0; + default: + xlog_warn( + "XFS: invalid item type (%d) xlog_recover_commit_pass1", + ITEM_TYPE(item)); + ASSERT(0); + return XFS_ERROR(EIO); + } +} + +STATIC int +xlog_recover_commit_pass2( + struct log *log, + struct xlog_recover *trans, + xlog_recover_item_t *item) +{ + trace_xfs_log_recover_item_recover(log, trans, item, XLOG_RECOVER_PASS2); + + switch (ITEM_TYPE(item)) { + case XFS_LI_BUF: + return xlog_recover_buffer_pass2(log, item); + case XFS_LI_INODE: + return xlog_recover_inode_pass2(log, item); + case XFS_LI_EFI: + return xlog_recover_efi_pass2(log, item, trans->r_lsn); + case XFS_LI_EFD: + return xlog_recover_efd_pass2(log, item); + case XFS_LI_DQUOT: + return xlog_recover_dquot_pass2(log, item); + case XFS_LI_QUOTAOFF: + /* nothing to do in pass2 */ + return 0; + default: + xlog_warn( + "XFS: invalid item type (%d) xlog_recover_commit_pass2", + ITEM_TYPE(item)); + ASSERT(0); + return XFS_ERROR(EIO); + } +} + +/* + * Perform the transaction. + * + * If the transaction modifies a buffer or inode, do it now. Otherwise, + * EFIs and EFDs get queued up by adding entries into the AIL for them. + */ +STATIC int xlog_recover_commit_trans( - xlog_t *log, - xlog_recover_t *trans, + struct log *log, + struct xlog_recover *trans, int pass) { - int error; + int error = 0; + xlog_recover_item_t *item; hlist_del(&trans->r_list); - if ((error = xlog_recover_do_trans(log, trans, pass))) + + error = xlog_recover_reorder_trans(log, trans, pass); + if (error) return error; - xlog_recover_free_trans(trans); /* no error */ + + list_for_each_entry(item, &trans->r_itemq, ri_list) { + if (pass == XLOG_RECOVER_PASS1) + error = xlog_recover_commit_pass1(log, trans, item); + else + error = xlog_recover_commit_pass2(log, trans, item); + if (error) + return error; + } + + xlog_recover_free_trans(trans); return 0; } @@ -3011,7 +2875,7 @@ xlog_recover_process_efi( xfs_extent_t *extp; xfs_fsblock_t startblock_fsb; - ASSERT(!(efip->efi_flags & XFS_EFI_RECOVERED)); + ASSERT(!test_bit(XFS_EFI_RECOVERED, &efip->efi_flags)); /* * First check the validity of the extents described by the @@ -3050,7 +2914,7 @@ xlog_recover_process_efi( extp->ext_len); } - efip->efi_flags |= XFS_EFI_RECOVERED; + set_bit(XFS_EFI_RECOVERED, &efip->efi_flags); error = xfs_trans_commit(tp, 0); return error; @@ -3107,7 +2971,7 @@ xlog_recover_process_efis( * Skip EFIs that we've already processed. */ efip = (xfs_efi_log_item_t *)lip; - if (efip->efi_flags & XFS_EFI_RECOVERED) { + if (test_bit(XFS_EFI_RECOVERED, &efip->efi_flags)) { lip = xfs_trans_ail_cursor_next(ailp, &cur); continue; } @@ -3724,7 +3588,7 @@ xlog_do_log_recovery( xfs_daddr_t head_blk, xfs_daddr_t tail_blk) { - int error; + int error, i; ASSERT(head_blk != tail_blk); @@ -3732,10 +3596,12 @@ xlog_do_log_recovery( * First do a pass to find all of the cancelled buf log items. * Store them in the buf_cancel_table for use in the second pass. */ - log->l_buf_cancel_table = - (xfs_buf_cancel_t **)kmem_zalloc(XLOG_BC_TABLE_SIZE * - sizeof(xfs_buf_cancel_t*), + log->l_buf_cancel_table = kmem_zalloc(XLOG_BC_TABLE_SIZE * + sizeof(struct list_head), KM_SLEEP); + for (i = 0; i < XLOG_BC_TABLE_SIZE; i++) + INIT_LIST_HEAD(&log->l_buf_cancel_table[i]); + error = xlog_do_recovery_pass(log, head_blk, tail_blk, XLOG_RECOVER_PASS1); if (error != 0) { @@ -3754,7 +3620,7 @@ xlog_do_log_recovery( int i; for (i = 0; i < XLOG_BC_TABLE_SIZE; i++) - ASSERT(log->l_buf_cancel_table[i] == NULL); + ASSERT(list_empty(&log->l_buf_cancel_table[i])); } #endif /* DEBUG */ |