STATIC int xlog_find_zeroed(xlog_t *, xfs_daddr_t *);
STATIC int xlog_clear_stale_blocks(xlog_t *, xfs_lsn_t);
-STATIC void xlog_recover_insert_item_backq(xlog_recover_item_t **q,
- xlog_recover_item_t *item);
#if defined(DEBUG)
STATIC void xlog_recover_check_summary(xlog_t *);
#else
#define xlog_recover_check_summary(log)
#endif
-
/*
* Sector aligned buffer routines for buffer create/read/write/access
*/
-#define XLOG_SECTOR_ROUNDUP_BBCOUNT(log, bbs) \
- ( ((log)->l_sectbb_mask && (bbs & (log)->l_sectbb_mask)) ? \
- ((bbs + (log)->l_sectbb_mask + 1) & ~(log)->l_sectbb_mask) : (bbs) )
-#define XLOG_SECTOR_ROUNDDOWN_BLKNO(log, bno) ((bno) & ~(log)->l_sectbb_mask)
+/*
+ * Verify the given count of basic blocks is valid number of blocks
+ * to specify for an operation involving the given XFS log buffer.
+ * Returns nonzero if the count is valid, 0 otherwise.
+ */
-xfs_buf_t *
+static inline int
+xlog_buf_bbcount_valid(
+ xlog_t *log,
+ int bbcount)
+{
+ return bbcount > 0 && bbcount <= log->l_logBBsize;
+}
+
+/*
+ * Allocate a buffer to hold log data. The buffer needs to be able
+ * to map to a range of nbblks basic blocks at any valid (basic
+ * block) offset within the log.
+ */
+STATIC xfs_buf_t *
xlog_get_bp(
xlog_t *log,
int nbblks)
{
- if (nbblks <= 0 || nbblks > log->l_logBBsize) {
- xlog_warn("XFS: Invalid block length (0x%x) given for buffer", nbblks);
- XFS_ERROR_REPORT("xlog_get_bp(1)",
- XFS_ERRLEVEL_HIGH, log->l_mp);
+ if (!xlog_buf_bbcount_valid(log, nbblks)) {
+ xlog_warn("XFS: Invalid block length (0x%x) given for buffer",
+ nbblks);
+ XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_HIGH, log->l_mp);
return NULL;
}
- if (log->l_sectbb_log) {
- if (nbblks > 1)
- nbblks += XLOG_SECTOR_ROUNDUP_BBCOUNT(log, 1);
- nbblks = XLOG_SECTOR_ROUNDUP_BBCOUNT(log, nbblks);
- }
+ /*
+ * We do log I/O in units of log sectors (a power-of-2
+ * multiple of the basic block size), so we round up the
+ * requested size to acommodate the basic blocks required
+ * for complete log sectors.
+ *
+ * In addition, the buffer may be used for a non-sector-
+ * aligned block offset, in which case an I/O of the
+ * requested size could extend beyond the end of the
+ * buffer. If the requested size is only 1 basic block it
+ * will never straddle a sector boundary, so this won't be
+ * an issue. Nor will this be a problem if the log I/O is
+ * done in basic blocks (sector size 1). But otherwise we
+ * extend the buffer by one extra log sector to ensure
+ * there's space to accomodate this possiblility.
+ */
+ if (nbblks > 1 && log->l_sectBBsize > 1)
+ nbblks += log->l_sectBBsize;
+ nbblks = round_up(nbblks, log->l_sectBBsize);
+
return xfs_buf_get_noaddr(BBTOB(nbblks), log->l_mp->m_logdev_targp);
}
-void
+STATIC void
xlog_put_bp(
xfs_buf_t *bp)
{
xfs_buf_free(bp);
}
+/*
+ * Return the address of the start of the given block number's data
+ * in a log buffer. The buffer covers a log sector-aligned region.
+ */
STATIC xfs_caddr_t
xlog_align(
xlog_t *log,
int nbblks,
xfs_buf_t *bp)
{
+ xfs_daddr_t offset;
xfs_caddr_t ptr;
- if (!log->l_sectbb_log)
- return XFS_BUF_PTR(bp);
+ offset = blk_no & ((xfs_daddr_t) log->l_sectBBsize - 1);
+ ptr = XFS_BUF_PTR(bp) + BBTOB(offset);
+
+ ASSERT(ptr + BBTOB(nbblks) <= XFS_BUF_PTR(bp) + XFS_BUF_SIZE(bp));
- ptr = XFS_BUF_PTR(bp) + BBTOB((int)blk_no & log->l_sectbb_mask);
- ASSERT(XFS_BUF_SIZE(bp) >=
- BBTOB(nbblks + (blk_no & log->l_sectbb_mask)));
return ptr;
}
{
int error;
- if (nbblks <= 0 || nbblks > log->l_logBBsize) {
- xlog_warn("XFS: Invalid block length (0x%x) given for buffer", nbblks);
- XFS_ERROR_REPORT("xlog_bread(1)",
- XFS_ERRLEVEL_HIGH, log->l_mp);
+ if (!xlog_buf_bbcount_valid(log, nbblks)) {
+ xlog_warn("XFS: Invalid block length (0x%x) given for buffer",
+ nbblks);
+ XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_HIGH, log->l_mp);
return EFSCORRUPTED;
}
- if (log->l_sectbb_log) {
- blk_no = XLOG_SECTOR_ROUNDDOWN_BLKNO(log, blk_no);
- nbblks = XLOG_SECTOR_ROUNDUP_BBCOUNT(log, nbblks);
- }
+ blk_no = round_down(blk_no, log->l_sectBBsize);
+ nbblks = round_up(nbblks, log->l_sectBBsize);
ASSERT(nbblks > 0);
ASSERT(BBTOB(nbblks) <= XFS_BUF_SIZE(bp));
- ASSERT(bp);
XFS_BUF_SET_ADDR(bp, log->l_logBBstart + blk_no);
XFS_BUF_READ(bp);
{
int error;
- if (nbblks <= 0 || nbblks > log->l_logBBsize) {
- xlog_warn("XFS: Invalid block length (0x%x) given for buffer", nbblks);
- XFS_ERROR_REPORT("xlog_bwrite(1)",
- XFS_ERRLEVEL_HIGH, log->l_mp);
+ if (!xlog_buf_bbcount_valid(log, nbblks)) {
+ xlog_warn("XFS: Invalid block length (0x%x) given for buffer",
+ nbblks);
+ XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_HIGH, log->l_mp);
return EFSCORRUPTED;
}
- if (log->l_sectbb_log) {
- blk_no = XLOG_SECTOR_ROUNDDOWN_BLKNO(log, blk_no);
- nbblks = XLOG_SECTOR_ROUNDUP_BBCOUNT(log, nbblks);
- }
+ blk_no = round_down(blk_no, log->l_sectBBsize);
+ nbblks = round_up(nbblks, log->l_sectBBsize);
ASSERT(nbblks > 0);
ASSERT(BBTOB(nbblks) <= XFS_BUF_SIZE(bp));
xfs_mount_t *mp,
xlog_rec_header_t *head)
{
- int b;
-
- cmn_err(CE_DEBUG, "%s: SB : uuid = ", __func__);
- for (b = 0; b < 16; b++)
- cmn_err(CE_DEBUG, "%02x", ((__uint8_t *)&mp->m_sb.sb_uuid)[b]);
- cmn_err(CE_DEBUG, ", fmt = %d\n", XLOG_FMT);
- cmn_err(CE_DEBUG, " log : uuid = ");
- for (b = 0; b < 16; b++)
- cmn_err(CE_DEBUG, "%02x", ((__uint8_t *)&head->h_fs_uuid)[b]);
- cmn_err(CE_DEBUG, ", fmt = %d\n", be32_to_cpu(head->h_fmt));
+ cmn_err(CE_DEBUG, "%s: SB : uuid = %pU, fmt = %d\n",
+ __func__, &mp->m_sb.sb_uuid, XLOG_FMT);
+ cmn_err(CE_DEBUG, " log : uuid = %pU, fmt = %d\n",
+ &head->h_fs_uuid, be32_to_cpu(head->h_fmt));
}
#else
#define xlog_header_check_dump(mp, head)
{
xfs_caddr_t offset;
xfs_daddr_t mid_blk;
+ xfs_daddr_t end_blk;
uint mid_cycle;
int error;
- mid_blk = BLK_AVG(first_blk, *last_blk);
- while (mid_blk != first_blk && mid_blk != *last_blk) {
+ end_blk = *last_blk;
+ mid_blk = BLK_AVG(first_blk, end_blk);
+ while (mid_blk != first_blk && mid_blk != end_blk) {
error = xlog_bread(log, mid_blk, 1, bp, &offset);
if (error)
return error;
mid_cycle = xlog_get_cycle(offset);
- if (mid_cycle == cycle) {
- *last_blk = mid_blk;
- /* last_half_cycle == mid_cycle */
- } else {
- first_blk = mid_blk;
- /* first_half_cycle == mid_cycle */
- }
- mid_blk = BLK_AVG(first_blk, *last_blk);
+ if (mid_cycle == cycle)
+ end_blk = mid_blk; /* last_half_cycle == mid_cycle */
+ else
+ first_blk = mid_blk; /* first_half_cycle == mid_cycle */
+ mid_blk = BLK_AVG(first_blk, end_blk);
}
- ASSERT((mid_blk == first_blk && mid_blk+1 == *last_blk) ||
- (mid_blk == *last_blk && mid_blk-1 == first_blk));
+ ASSERT((mid_blk == first_blk && mid_blk+1 == end_blk) ||
+ (mid_blk == end_blk && mid_blk-1 == first_blk));
+
+ *last_blk = end_blk;
return 0;
}
/*
- * Check that the range of blocks does not contain the cycle number
- * given. The scan needs to occur from front to back and the ptr into the
- * region must be updated since a later routine will need to perform another
- * test. If the region is completely good, we end up returning the same
- * last block number.
- *
- * Set blkno to -1 if we encounter no errors. This is an invalid block number
- * since we don't ever expect logs to get this large.
+ * Check that a range of blocks does not contain stop_on_cycle_no.
+ * Fill in *new_blk with the block offset where such a block is
+ * found, or with -1 (an invalid block number) if there is no such
+ * block in the range. The scan needs to occur from front to back
+ * and the pointer into the region must be updated since a later
+ * routine will need to perform another test.
*/
STATIC int
xlog_find_verify_cycle(
xfs_caddr_t buf = NULL;
int error = 0;
+ /*
+ * Greedily allocate a buffer big enough to handle the full
+ * range of basic blocks we'll be examining. If that fails,
+ * try a smaller size. We need to be able to read at least
+ * a log sector, or we're out of luck.
+ */
bufblks = 1 << ffs(nbblks);
-
while (!(bp = xlog_get_bp(log, bufblks))) {
- /* can't get enough memory to do everything in one big buffer */
bufblks >>= 1;
- if (bufblks <= log->l_sectbb_log)
+ if (bufblks < log->l_sectBBsize)
return ENOMEM;
}
* In this case we want to find the first block with cycle
* number matching last_half_cycle. We expect the log to be
* some variation on
- * x + 1 ... | x ...
+ * x + 1 ... | x ... | x
* The first block with cycle number x (last_half_cycle) will
* be where the new head belongs. First we do a binary search
* for the first occurrence of last_half_cycle. The binary
* the log, then we look for occurrences of last_half_cycle - 1
* at the end of the log. The cases we're looking for look
* like
- * x + 1 ... | x | x + 1 | x ...
- * ^ binary search stopped here
+ * v binary search stopped here
+ * x + 1 ... | x | x + 1 | x ... | x
+ * ^ but we want to locate this spot
* or
- * x + 1 ... | x ... | x - 1 | x
* <---------> less than scan distance
+ * x + 1 ... | x ... | x - 1 | x
+ * ^ we want to locate this spot
*/
stop_on_cycle = last_half_cycle;
if ((error = xlog_find_cycle_start(log, bp, first_blk,
* certainly not the head of the log. By searching for
* last_half_cycle-1 we accomplish that.
*/
- start_blk = log_bbnum - num_scan_bblks + head_blk;
ASSERT(head_blk <= INT_MAX &&
- (xfs_daddr_t) num_scan_bblks - head_blk >= 0);
+ (xfs_daddr_t) num_scan_bblks >= head_blk);
+ start_blk = log_bbnum - (num_scan_bblks - head_blk);
if ((error = xlog_find_verify_cycle(log, start_blk,
num_scan_bblks - (int)head_blk,
(stop_on_cycle - 1), &new_blk)))
goto bp_err;
if (new_blk != -1) {
head_blk = new_blk;
- goto bad_blk;
+ goto validate_head;
}
/*
head_blk = new_blk;
}
- bad_blk:
+validate_head:
/*
* Now we need to make sure head_blk is not pointing to a block in
* the middle of a log record.
if ((error = xlog_find_verify_log_record(log, start_blk,
&head_blk, 0)) == -1) {
/* We hit the beginning of the log during our search */
- start_blk = log_bbnum - num_scan_bblks + head_blk;
+ start_blk = log_bbnum - (num_scan_bblks - head_blk);
new_blk = log_bbnum;
ASSERT(start_blk <= INT_MAX &&
(xfs_daddr_t) log_bbnum-start_blk >= 0);
* We could speed up search by using current head_blk buffer, but it is not
* available.
*/
-int
+STATIC int
xlog_find_tail(
xlog_t *log,
xfs_daddr_t *head_blk,
if (*head_blk == 0) { /* special case */
error = xlog_bread(log, 0, 1, bp, &offset);
if (error)
- goto bread_err;
+ goto done;
if (xlog_get_cycle(offset) == 0) {
*tail_blk = 0;
/* leave all other log inited values alone */
- goto exit;
+ goto done;
}
}
for (i = (int)(*head_blk) - 1; i >= 0; i--) {
error = xlog_bread(log, i, 1, bp, &offset);
if (error)
- goto bread_err;
+ goto done;
if (XLOG_HEADER_MAGIC_NUM == be32_to_cpu(*(__be32 *)offset)) {
found = 1;
for (i = log->l_logBBsize - 1; i >= (int)(*head_blk); i--) {
error = xlog_bread(log, i, 1, bp, &offset);
if (error)
- goto bread_err;
+ goto done;
if (XLOG_HEADER_MAGIC_NUM ==
be32_to_cpu(*(__be32 *)offset)) {
umount_data_blk = (i + hblks) % log->l_logBBsize;
error = xlog_bread(log, umount_data_blk, 1, bp, &offset);
if (error)
- goto bread_err;
+ goto done;
op_head = (xlog_op_header_t *)offset;
if (op_head->oh_flags & XLOG_UNMOUNT_TRANS) {
* But... if the -device- itself is readonly, just skip this.
* We can't recover this device anyway, so it won't matter.
*/
- if (!xfs_readonly_buftarg(log->l_mp->m_logdev_targp)) {
+ if (!xfs_readonly_buftarg(log->l_mp->m_logdev_targp))
error = xlog_clear_stale_blocks(log, tail_lsn);
- }
-bread_err:
-exit:
+done:
xlog_put_bp(bp);
if (error)
xfs_caddr_t offset;
xfs_buf_t *bp;
int balign, ealign;
- int sectbb = XLOG_SECTOR_ROUNDUP_BBCOUNT(log, 1);
+ int sectbb = log->l_sectBBsize;
int end_block = start_block + blocks;
int bufblks;
int error = 0;
int i, j = 0;
+ /*
+ * Greedily allocate a buffer big enough to handle the full
+ * range of basic blocks to be written. If that fails, try
+ * a smaller size. We need to be able to write at least a
+ * log sector, or we're out of luck.
+ */
bufblks = 1 << ffs(blocks);
while (!(bp = xlog_get_bp(log, bufblks))) {
bufblks >>= 1;
- if (bufblks <= log->l_sectbb_log)
+ if (bufblks < sectbb)
return ENOMEM;
}
* the buffer in the starting sector not covered by the first
* write below.
*/
- balign = XLOG_SECTOR_ROUNDDOWN_BLKNO(log, start_block);
+ balign = round_down(start_block, sectbb);
if (balign != start_block) {
error = xlog_bread_noalign(log, start_block, 1, bp);
if (error)
* the buffer in the final sector not covered by the write.
* If this is the same sector as the above read, skip it.
*/
- ealign = XLOG_SECTOR_ROUNDDOWN_BLKNO(log, end_block);
+ ealign = round_down(end_block, sectbb);
if (j == 0 && (start_block + endcount > ealign)) {
offset = XFS_BUF_PTR(bp);
balign = BBTOB(ealign - start_block);
STATIC xlog_recover_t *
xlog_recover_find_tid(
- xlog_recover_t *q,
+ struct hlist_head *head,
xlog_tid_t tid)
{
- xlog_recover_t *p = q;
+ xlog_recover_t *trans;
+ struct hlist_node *n;
- while (p != NULL) {
- if (p->r_log_tid == tid)
- break;
- p = p->r_next;
+ hlist_for_each_entry(trans, n, head, r_list) {
+ if (trans->r_log_tid == tid)
+ return trans;
}
- return p;
+ return NULL;
}
STATIC void
-xlog_recover_put_hashq(
- xlog_recover_t **q,
- xlog_recover_t *trans)
+xlog_recover_new_tid(
+ struct hlist_head *head,
+ xlog_tid_t tid,
+ xfs_lsn_t lsn)
{
- trans->r_next = *q;
- *q = trans;
+ xlog_recover_t *trans;
+
+ trans = kmem_zalloc(sizeof(xlog_recover_t), KM_SLEEP);
+ trans->r_log_tid = tid;
+ trans->r_lsn = lsn;
+ INIT_LIST_HEAD(&trans->r_itemq);
+
+ INIT_HLIST_NODE(&trans->r_list);
+ hlist_add_head(&trans->r_list, head);
}
STATIC void
xlog_recover_add_item(
- xlog_recover_item_t **itemq)
+ struct list_head *head)
{
xlog_recover_item_t *item;
item = kmem_zalloc(sizeof(xlog_recover_item_t), KM_SLEEP);
- xlog_recover_insert_item_backq(itemq, item);
+ INIT_LIST_HEAD(&item->ri_list);
+ list_add_tail(&item->ri_list, head);
}
STATIC int
xlog_recover_add_to_cont_trans(
+ struct log *log,
xlog_recover_t *trans,
xfs_caddr_t dp,
int len)
xfs_caddr_t ptr, old_ptr;
int old_len;
- item = trans->r_itemq;
- if (item == NULL) {
+ if (list_empty(&trans->r_itemq)) {
/* finish copying rest of trans header */
xlog_recover_add_item(&trans->r_itemq);
ptr = (xfs_caddr_t) &trans->r_theader +
memcpy(ptr, dp, len); /* d, s, l */
return 0;
}
- item = item->ri_prev;
+ /* take the tail entry */
+ item = list_entry(trans->r_itemq.prev, xlog_recover_item_t, ri_list);
old_ptr = item->ri_buf[item->ri_cnt-1].i_addr;
old_len = item->ri_buf[item->ri_cnt-1].i_len;
memcpy(&ptr[old_len], dp, len); /* d, s, l */
item->ri_buf[item->ri_cnt-1].i_len += len;
item->ri_buf[item->ri_cnt-1].i_addr = ptr;
+ trace_xfs_log_recover_item_add_cont(log, trans, item, 0);
return 0;
}
*/
STATIC int
xlog_recover_add_to_trans(
+ struct log *log,
xlog_recover_t *trans,
xfs_caddr_t dp,
int len)
if (!len)
return 0;
- item = trans->r_itemq;
- if (item == NULL) {
+ if (list_empty(&trans->r_itemq)) {
/* we need to catch log corruptions here */
if (*(uint *)dp != XFS_TRANS_HEADER_MAGIC) {
xlog_warn("XFS: xlog_recover_add_to_trans: "
memcpy(ptr, dp, len);
in_f = (xfs_inode_log_format_t *)ptr;
- if (item->ri_prev->ri_total != 0 &&
- item->ri_prev->ri_total == item->ri_prev->ri_cnt) {
+ /* take the tail entry */
+ item = list_entry(trans->r_itemq.prev, xlog_recover_item_t, ri_list);
+ if (item->ri_total != 0 &&
+ item->ri_total == item->ri_cnt) {
+ /* tail item is in use, get a new one */
xlog_recover_add_item(&trans->r_itemq);
+ item = list_entry(trans->r_itemq.prev,
+ xlog_recover_item_t, ri_list);
}
- item = trans->r_itemq;
- item = item->ri_prev;
if (item->ri_total == 0) { /* first region to be added */
if (in_f->ilf_size == 0 ||
item->ri_buf[item->ri_cnt].i_addr = ptr;
item->ri_buf[item->ri_cnt].i_len = len;
item->ri_cnt++;
+ trace_xfs_log_recover_item_add(log, trans, item, 0);
return 0;
}
-STATIC void
-xlog_recover_new_tid(
- xlog_recover_t **q,
- xlog_tid_t tid,
- xfs_lsn_t lsn)
-{
- xlog_recover_t *trans;
-
- trans = kmem_zalloc(sizeof(xlog_recover_t), KM_SLEEP);
- trans->r_log_tid = tid;
- trans->r_lsn = lsn;
- xlog_recover_put_hashq(q, trans);
-}
-
-STATIC int
-xlog_recover_unlink_tid(
- xlog_recover_t **q,
- xlog_recover_t *trans)
-{
- xlog_recover_t *tp;
- int found = 0;
-
- ASSERT(trans != NULL);
- if (trans == *q) {
- *q = (*q)->r_next;
- } else {
- tp = *q;
- while (tp) {
- if (tp->r_next == trans) {
- found = 1;
- break;
- }
- tp = tp->r_next;
- }
- if (!found) {
- xlog_warn(
- "XFS: xlog_recover_unlink_tid: trans not found");
- ASSERT(0);
- return XFS_ERROR(EIO);
- }
- tp->r_next = tp->r_next->r_next;
- }
- return 0;
-}
-
-STATIC void
-xlog_recover_insert_item_backq(
- xlog_recover_item_t **q,
- xlog_recover_item_t *item)
-{
- if (*q == NULL) {
- item->ri_prev = item->ri_next = item;
- *q = item;
- } else {
- item->ri_next = *q;
- item->ri_prev = (*q)->ri_prev;
- (*q)->ri_prev = item;
- item->ri_prev->ri_next = item;
- }
-}
-
-STATIC void
-xlog_recover_insert_item_frontq(
- xlog_recover_item_t **q,
- xlog_recover_item_t *item)
-{
- xlog_recover_insert_item_backq(q, item);
- *q = item;
-}
-
+/*
+ * Sort the log items in the transaction. Cancelled buffers need
+ * to be put first so they are processed before any items that might
+ * modify the buffers. If they are cancelled, then the modifications
+ * don't need to be replayed.
+ */
STATIC int
xlog_recover_reorder_trans(
- xlog_recover_t *trans)
+ struct log *log,
+ xlog_recover_t *trans,
+ int pass)
{
- xlog_recover_item_t *first_item, *itemq, *itemq_next;
- xfs_buf_log_format_t *buf_f;
- ushort flags = 0;
+ xlog_recover_item_t *item, *n;
+ LIST_HEAD(sort_list);
+
+ list_splice_init(&trans->r_itemq, &sort_list);
+ list_for_each_entry_safe(item, n, &sort_list, ri_list) {
+ xfs_buf_log_format_t *buf_f;
- first_item = itemq = trans->r_itemq;
- trans->r_itemq = NULL;
- do {
- itemq_next = itemq->ri_next;
- buf_f = (xfs_buf_log_format_t *)itemq->ri_buf[0].i_addr;
+ buf_f = (xfs_buf_log_format_t *)item->ri_buf[0].i_addr;
- switch (ITEM_TYPE(itemq)) {
+ switch (ITEM_TYPE(item)) {
case XFS_LI_BUF:
- flags = buf_f->blf_flags;
- if (!(flags & XFS_BLI_CANCEL)) {
- xlog_recover_insert_item_frontq(&trans->r_itemq,
- itemq);
+ if (!(buf_f->blf_flags & XFS_BLI_CANCEL)) {
+ trace_xfs_log_recover_item_reorder_head(log,
+ trans, item, pass);
+ list_move(&item->ri_list, &trans->r_itemq);
break;
}
case XFS_LI_INODE:
case XFS_LI_QUOTAOFF:
case XFS_LI_EFD:
case XFS_LI_EFI:
- xlog_recover_insert_item_backq(&trans->r_itemq, itemq);
+ trace_xfs_log_recover_item_reorder_tail(log,
+ trans, item, pass);
+ list_move_tail(&item->ri_list, &trans->r_itemq);
break;
default:
xlog_warn(
ASSERT(0);
return XFS_ERROR(EIO);
}
- itemq = itemq_next;
- } while (first_item != itemq);
+ }
+ ASSERT(list_empty(&sort_list));
return 0;
}
/*
* If this isn't a cancel buffer item, then just return.
*/
- if (!(flags & XFS_BLI_CANCEL))
+ if (!(flags & XFS_BLI_CANCEL)) {
+ trace_xfs_log_recover_buf_not_cancel(log, buf_f);
return;
+ }
/*
* Insert an xfs_buf_cancel record into the hash table of
while (nextp != NULL) {
if (nextp->bc_blkno == blkno && nextp->bc_len == len) {
nextp->bc_refcount++;
+ trace_xfs_log_recover_buf_cancel_ref_inc(log, buf_f);
return;
}
prevp = nextp;
bcp->bc_refcount = 1;
bcp->bc_next = NULL;
prevp->bc_next = bcp;
+ trace_xfs_log_recover_buf_cancel_add(log, buf_f);
}
/*
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;
/*ARGSUSED*/
STATIC void
xlog_recover_do_reg_buffer(
+ struct xfs_mount *mp,
xlog_recover_item_t *item,
xfs_buf_t *bp,
xfs_buf_log_format_t *buf_f)
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;
{
uint type;
+ trace_xfs_log_recover_buf_dquot_buf(log, buf_f);
+
/*
* Filesystems are required to send in quota flags at mount time.
*/
if (log->l_quotaoffs_flag & type)
return;
- xlog_recover_do_reg_buffer(item, bp, buf_f);
+ xlog_recover_do_reg_buffer(mp, item, bp, buf_f);
}
/*
*/
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;
}
mp = log->l_mp;
- buf_flags = XFS_BUF_LOCK;
+ buf_flags = XBF_LOCK;
if (!(flags & XFS_BLI_INODE_BUF))
- buf_flags |= XFS_BUF_MAPPED;
+ buf_flags |= XBF_MAPPED;
bp = xfs_buf_read(mp->m_ddev_targp, blkno, len, buf_flags);
if (XFS_BUF_ISERROR(bp)) {
(XFS_BLI_UDQUOT_BUF|XFS_BLI_PDQUOT_BUF|XFS_BLI_GDQUOT_BUF)) {
xlog_recover_do_dquot_buffer(mp, log, item, bp, buf_f);
} else {
- xlog_recover_do_reg_buffer(item, bp, buf_f);
+ xlog_recover_do_reg_buffer(mp, item, bp, buf_f);
}
if (error)
return XFS_ERROR(error);
if (xlog_check_buffer_cancelled(log, in_f->ilf_blkno,
in_f->ilf_len, 0)) {
error = 0;
+ trace_xfs_log_recover_inode_cancel(log, in_f);
goto error;
}
+ trace_xfs_log_recover_inode_recover(log, in_f);
bp = xfs_buf_read(mp->m_ddev_targp, in_f->ilf_blkno, in_f->ilf_len,
- XFS_BUF_LOCK);
+ XBF_LOCK);
if (XFS_BUF_ISERROR(bp)) {
xfs_ioerror_alert("xlog_recover_do..(read#2)", mp,
bp, in_f->ilf_blkno);
/* do nothing */
} else {
xfs_buf_relse(bp);
+ trace_xfs_log_recover_inode_skip(log, in_f);
error = 0;
goto error;
}
int pass)
{
int error = 0;
- xlog_recover_item_t *item, *first_item;
+ xlog_recover_item_t *item;
- error = xlog_recover_reorder_trans(trans);
+ error = xlog_recover_reorder_trans(log, trans, pass);
if (error)
return error;
- first_item = item = trans->r_itemq;
- do {
+ 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);
if (error)
return error;
- item = item->ri_next;
- } while (first_item != item);
+ }
return 0;
}
xlog_recover_free_trans(
xlog_recover_t *trans)
{
- xlog_recover_item_t *first_item, *item, *free_item;
+ xlog_recover_item_t *item, *n;
int i;
- item = first_item = trans->r_itemq;
- do {
- free_item = item;
- item = item->ri_next;
- /* Free the regions in the item. */
- for (i = 0; i < free_item->ri_cnt; i++) {
- kmem_free(free_item->ri_buf[i].i_addr);
- }
+ list_for_each_entry_safe(item, n, &trans->r_itemq, ri_list) {
+ /* Free the regions in the item. */
+ list_del(&item->ri_list);
+ for (i = 0; i < item->ri_cnt; i++)
+ kmem_free(item->ri_buf[i].i_addr);
/* Free the item itself */
- kmem_free(free_item->ri_buf);
- kmem_free(free_item);
- } while (first_item != item);
+ kmem_free(item->ri_buf);
+ kmem_free(item);
+ }
/* Free the transaction recover structure */
kmem_free(trans);
}
STATIC int
xlog_recover_commit_trans(
xlog_t *log,
- xlog_recover_t **q,
xlog_recover_t *trans,
int pass)
{
int error;
- if ((error = xlog_recover_unlink_tid(q, trans)))
- return error;
+ hlist_del(&trans->r_list);
if ((error = xlog_recover_do_trans(log, trans, pass)))
return error;
xlog_recover_free_trans(trans); /* no error */
STATIC int
xlog_recover_process_data(
xlog_t *log,
- xlog_recover_t *rhash[],
+ struct hlist_head rhash[],
xlog_rec_header_t *rhead,
xfs_caddr_t dp,
int pass)
}
tid = be32_to_cpu(ohead->oh_tid);
hash = XLOG_RHASH(tid);
- trans = xlog_recover_find_tid(rhash[hash], tid);
+ trans = xlog_recover_find_tid(&rhash[hash], tid);
if (trans == NULL) { /* not found; add new tid */
if (ohead->oh_flags & XLOG_START_TRANS)
xlog_recover_new_tid(&rhash[hash], tid,
switch (flags) {
case XLOG_COMMIT_TRANS:
error = xlog_recover_commit_trans(log,
- &rhash[hash], trans, pass);
+ trans, pass);
break;
case XLOG_UNMOUNT_TRANS:
error = xlog_recover_unmount_trans(trans);
break;
case XLOG_WAS_CONT_TRANS:
- error = xlog_recover_add_to_cont_trans(trans,
- dp, be32_to_cpu(ohead->oh_len));
+ error = xlog_recover_add_to_cont_trans(log,
+ trans, dp,
+ be32_to_cpu(ohead->oh_len));
break;
case XLOG_START_TRANS:
xlog_warn(
break;
case 0:
case XLOG_CONTINUE_TRANS:
- error = xlog_recover_add_to_trans(trans,
+ error = xlog_recover_add_to_trans(log, trans,
dp, be32_to_cpu(ohead->oh_len));
break;
default:
/*
* Get the on disk inode to find the next inode in the bucket.
*/
- error = xfs_itobp(mp, NULL, ip, &dip, &ibp, XFS_BUF_LOCK);
+ error = xfs_itobp(mp, NULL, ip, &dip, &ibp, XBF_LOCK);
if (error)
goto fail_iput;
}
}
-#if defined(DEBUG) && defined(XFS_LOUD_RECOVERY)
-STATIC void
-xlog_unpack_data_checksum(
- xlog_rec_header_t *rhead,
- xfs_caddr_t dp,
- xlog_t *log)
-{
- __be32 *up = (__be32 *)dp;
- uint chksum = 0;
- int i;
-
- /* divide length by 4 to get # words */
- for (i=0; i < be32_to_cpu(rhead->h_len) >> 2; i++) {
- chksum ^= be32_to_cpu(*up);
- up++;
- }
- if (chksum != be32_to_cpu(rhead->h_chksum)) {
- if (rhead->h_chksum ||
- ((log->l_flags & XLOG_CHKSUM_MISMATCH) == 0)) {
- cmn_err(CE_DEBUG,
- "XFS: LogR chksum mismatch: was (0x%x) is (0x%x)\n",
- be32_to_cpu(rhead->h_chksum), chksum);
- cmn_err(CE_DEBUG,
-"XFS: Disregard message if filesystem was created with non-DEBUG kernel");
- if (xfs_sb_version_haslogv2(&log->l_mp->m_sb)) {
- cmn_err(CE_DEBUG,
- "XFS: LogR this is a LogV2 filesystem\n");
- }
- log->l_flags |= XLOG_CHKSUM_MISMATCH;
- }
- }
-}
-#else
-#define xlog_unpack_data_checksum(rhead, dp, log)
-#endif
-
STATIC void
xlog_unpack_data(
xlog_rec_header_t *rhead,
dp += BBSIZE;
}
}
-
- xlog_unpack_data_checksum(rhead, dp, log);
}
STATIC int
int error = 0, h_size;
int bblks, split_bblks;
int hblks, split_hblks, wrapped_hblks;
- xlog_recover_t *rhash[XLOG_RHASH_SIZE];
+ struct hlist_head rhash[XLOG_RHASH_SIZE];
ASSERT(head_blk != tail_blk);
hblks = 1;
}
} else {
- ASSERT(log->l_sectbb_log == 0);
+ ASSERT(log->l_sectBBsize == 1);
hblks = 1;
hbp = xlog_get_bp(log, 1);
h_size = XLOG_BIG_RECORD_BSIZE;
* case the unlink transactions would have problems
* pushing the EFIs out of the way.
*/
- xfs_log_force(log->l_mp, (xfs_lsn_t)0,
- (XFS_LOG_FORCE | XFS_LOG_SYNC));
+ xfs_log_force(log->l_mp, XFS_LOG_SYNC);
xlog_recover_process_iunlinks(log);
xfs_agf_t *agfp;
xfs_buf_t *agfbp;
xfs_buf_t *agibp;
- xfs_buf_t *sbbp;
-#ifdef XFS_LOUD_RECOVERY
- xfs_sb_t *sbp;
-#endif
xfs_agnumber_t agno;
__uint64_t freeblks;
__uint64_t itotal;
xfs_buf_relse(agibp);
}
}
-
- sbbp = xfs_getsb(mp, 0);
-#ifdef XFS_LOUD_RECOVERY
- sbp = &mp->m_sb;
- xfs_sb_from_disk(sbp, XFS_BUF_TO_SBP(sbbp));
- cmn_err(CE_NOTE,
- "xlog_recover_check_summary: sb_icount %Lu itotal %Lu",
- sbp->sb_icount, itotal);
- cmn_err(CE_NOTE,
- "xlog_recover_check_summary: sb_ifree %Lu itotal %Lu",
- sbp->sb_ifree, ifree);
- cmn_err(CE_NOTE,
- "xlog_recover_check_summary: sb_fdblocks %Lu freeblks %Lu",
- sbp->sb_fdblocks, freeblks);
-#if 0
- /*
- * This is turned off until I account for the allocation
- * btree blocks which live in free space.
- */
- ASSERT(sbp->sb_icount == itotal);
- ASSERT(sbp->sb_ifree == ifree);
- ASSERT(sbp->sb_fdblocks == freeblks);
-#endif
-#endif
- xfs_buf_relse(sbbp);
}
#endif /* DEBUG */
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff