#include "xfs_bmap_btree.h"
#include "xfs_error.h"
#include "xfs_dir2.h"
+#include "xfs_rmap_item.h"
#define BLK_AVG(blk1, blk2) ((blk1+blk2) >> 1)
case XFS_LI_QUOTAOFF:
case XFS_LI_EFD:
case XFS_LI_EFI:
+ case XFS_LI_RUI:
+ case XFS_LI_RUD:
trace_xfs_log_recover_item_reorder_tail(log,
trans, item, pass);
list_move_tail(&item->ri_list, &inode_list);
case XFS_ABTC_CRC_MAGIC:
case XFS_ABTB_MAGIC:
case XFS_ABTC_MAGIC:
+ case XFS_RMAP_CRC_MAGIC:
case XFS_IBT_CRC_MAGIC:
case XFS_IBT_MAGIC: {
struct xfs_btree_block *btb = blk;
case XFS_BMAP_MAGIC:
bp->b_ops = &xfs_bmbt_buf_ops;
break;
+ case XFS_RMAP_CRC_MAGIC:
+ bp->b_ops = &xfs_rmapbt_buf_ops;
+ break;
default:
xfs_warn(mp, "Bad btree block magic!");
ASSERT(0);
return 0;
}
+/*
+ * This routine is called to create an in-core extent rmap update
+ * item from the rui format structure which was logged on disk.
+ * It allocates an in-core rui, copies the extents from the format
+ * structure into it, and adds the rui to the AIL with the given
+ * LSN.
+ */
+STATIC int
+xlog_recover_rui_pass2(
+ struct xlog *log,
+ struct xlog_recover_item *item,
+ xfs_lsn_t lsn)
+{
+ int error;
+ struct xfs_mount *mp = log->l_mp;
+ struct xfs_rui_log_item *ruip;
+ struct xfs_rui_log_format *rui_formatp;
+
+ rui_formatp = item->ri_buf[0].i_addr;
+
+ ruip = xfs_rui_init(mp, rui_formatp->rui_nextents);
+ error = xfs_rui_copy_format(&item->ri_buf[0], &ruip->rui_format);
+ if (error) {
+ xfs_rui_item_free(ruip);
+ return error;
+ }
+ atomic_set(&ruip->rui_next_extent, rui_formatp->rui_nextents);
+
+ spin_lock(&log->l_ailp->xa_lock);
+ /*
+ * The RUI has two references. One for the RUD and one for RUI to ensure
+ * it makes it into the AIL. Insert the RUI into the AIL directly and
+ * drop the RUI reference. Note that xfs_trans_ail_update() drops the
+ * AIL lock.
+ */
+ xfs_trans_ail_update(log->l_ailp, &ruip->rui_item, lsn);
+ xfs_rui_release(ruip);
+ return 0;
+}
+
+
+/*
+ * This routine is called when an RUD format structure is found in a committed
+ * transaction in the log. Its purpose is to cancel the corresponding RUI if it
+ * was still in the log. To do this it searches the AIL for the RUI with an id
+ * equal to that in the RUD format structure. If we find it we drop the RUD
+ * reference, which removes the RUI from the AIL and frees it.
+ */
+STATIC int
+xlog_recover_rud_pass2(
+ struct xlog *log,
+ struct xlog_recover_item *item)
+{
+ struct xfs_rud_log_format *rud_formatp;
+ struct xfs_rui_log_item *ruip = NULL;
+ struct xfs_log_item *lip;
+ __uint64_t rui_id;
+ struct xfs_ail_cursor cur;
+ struct xfs_ail *ailp = log->l_ailp;
+
+ rud_formatp = item->ri_buf[0].i_addr;
+ ASSERT(item->ri_buf[0].i_len == sizeof(struct xfs_rud_log_format));
+ rui_id = rud_formatp->rud_rui_id;
+
+ /*
+ * Search for the RUI with the id in the RUD format structure in the
+ * AIL.
+ */
+ spin_lock(&ailp->xa_lock);
+ lip = xfs_trans_ail_cursor_first(ailp, &cur, 0);
+ while (lip != NULL) {
+ if (lip->li_type == XFS_LI_RUI) {
+ ruip = (struct xfs_rui_log_item *)lip;
+ if (ruip->rui_format.rui_id == rui_id) {
+ /*
+ * Drop the RUD reference to the RUI. This
+ * removes the RUI from the AIL and frees it.
+ */
+ spin_unlock(&ailp->xa_lock);
+ xfs_rui_release(ruip);
+ spin_lock(&ailp->xa_lock);
+ break;
+ }
+ }
+ lip = xfs_trans_ail_cursor_next(ailp, &cur);
+ }
+
+ xfs_trans_ail_cursor_done(&cur);
+ spin_unlock(&ailp->xa_lock);
+
+ return 0;
+}
+
/*
* This routine is called when an inode create format structure is found in a
* committed transaction in the log. It's purpose is to initialise the inodes
case XFS_LI_EFI:
case XFS_LI_EFD:
case XFS_LI_QUOTAOFF:
+ case XFS_LI_RUI:
+ case XFS_LI_RUD:
default:
break;
}
case XFS_LI_EFD:
case XFS_LI_DQUOT:
case XFS_LI_ICREATE:
+ case XFS_LI_RUI:
+ case XFS_LI_RUD:
/* nothing to do in pass 1 */
return 0;
default:
return xlog_recover_efi_pass2(log, item, trans->r_lsn);
case XFS_LI_EFD:
return xlog_recover_efd_pass2(log, item);
+ case XFS_LI_RUI:
+ return xlog_recover_rui_pass2(log, item, trans->r_lsn);
+ case XFS_LI_RUD:
+ return xlog_recover_rud_pass2(log, item);
case XFS_LI_DQUOT:
return xlog_recover_dquot_pass2(log, buffer_list, item,
trans->r_lsn);
return 0;
}
-/*
- * Process an extent free intent item that was recovered from
- * the log. We need to free the extents that it describes.
- */
+/* Recover the EFI if necessary. */
STATIC int
xlog_recover_process_efi(
- xfs_mount_t *mp,
- xfs_efi_log_item_t *efip)
+ struct xfs_mount *mp,
+ struct xfs_ail *ailp,
+ struct xfs_log_item *lip)
{
- xfs_efd_log_item_t *efdp;
- xfs_trans_t *tp;
- int i;
- int error = 0;
- xfs_extent_t *extp;
- xfs_fsblock_t startblock_fsb;
-
- ASSERT(!test_bit(XFS_EFI_RECOVERED, &efip->efi_flags));
+ struct xfs_efi_log_item *efip;
+ int error;
/*
- * First check the validity of the extents described by the
- * EFI. If any are bad, then assume that all are bad and
- * just toss the EFI.
+ * Skip EFIs that we've already processed.
*/
- for (i = 0; i < efip->efi_format.efi_nextents; i++) {
- extp = &(efip->efi_format.efi_extents[i]);
- startblock_fsb = XFS_BB_TO_FSB(mp,
- XFS_FSB_TO_DADDR(mp, extp->ext_start));
- if ((startblock_fsb == 0) ||
- (extp->ext_len == 0) ||
- (startblock_fsb >= mp->m_sb.sb_dblocks) ||
- (extp->ext_len >= mp->m_sb.sb_agblocks)) {
- /*
- * This will pull the EFI from the AIL and
- * free the memory associated with it.
- */
- set_bit(XFS_EFI_RECOVERED, &efip->efi_flags);
- xfs_efi_release(efip);
- return -EIO;
- }
- }
+ efip = container_of(lip, struct xfs_efi_log_item, efi_item);
+ if (test_bit(XFS_EFI_RECOVERED, &efip->efi_flags))
+ return 0;
- error = xfs_trans_alloc(mp, &M_RES(mp)->tr_itruncate, 0, 0, 0, &tp);
- if (error)
- return error;
- efdp = xfs_trans_get_efd(tp, efip, efip->efi_format.efi_nextents);
+ spin_unlock(&ailp->xa_lock);
+ error = xfs_efi_recover(mp, efip);
+ spin_lock(&ailp->xa_lock);
- for (i = 0; i < efip->efi_format.efi_nextents; i++) {
- extp = &(efip->efi_format.efi_extents[i]);
- error = xfs_trans_free_extent(tp, efdp, extp->ext_start,
- extp->ext_len);
- if (error)
- goto abort_error;
+ return error;
+}
- }
+/* Release the EFI since we're cancelling everything. */
+STATIC void
+xlog_recover_cancel_efi(
+ struct xfs_mount *mp,
+ struct xfs_ail *ailp,
+ struct xfs_log_item *lip)
+{
+ struct xfs_efi_log_item *efip;
- set_bit(XFS_EFI_RECOVERED, &efip->efi_flags);
- error = xfs_trans_commit(tp);
- return error;
+ efip = container_of(lip, struct xfs_efi_log_item, efi_item);
+
+ spin_unlock(&ailp->xa_lock);
+ xfs_efi_release(efip);
+ spin_lock(&ailp->xa_lock);
+}
+
+/* Recover the RUI if necessary. */
+STATIC int
+xlog_recover_process_rui(
+ struct xfs_mount *mp,
+ struct xfs_ail *ailp,
+ struct xfs_log_item *lip)
+{
+ struct xfs_rui_log_item *ruip;
+ int error;
+
+ /*
+ * Skip RUIs that we've already processed.
+ */
+ ruip = container_of(lip, struct xfs_rui_log_item, rui_item);
+ if (test_bit(XFS_RUI_RECOVERED, &ruip->rui_flags))
+ return 0;
+
+ spin_unlock(&ailp->xa_lock);
+ error = xfs_rui_recover(mp, ruip);
+ spin_lock(&ailp->xa_lock);
-abort_error:
- xfs_trans_cancel(tp);
return error;
}
+/* Release the RUI since we're cancelling everything. */
+STATIC void
+xlog_recover_cancel_rui(
+ struct xfs_mount *mp,
+ struct xfs_ail *ailp,
+ struct xfs_log_item *lip)
+{
+ struct xfs_rui_log_item *ruip;
+
+ ruip = container_of(lip, struct xfs_rui_log_item, rui_item);
+
+ spin_unlock(&ailp->xa_lock);
+ xfs_rui_release(ruip);
+ spin_lock(&ailp->xa_lock);
+}
+
+/* Is this log item a deferred action intent? */
+static inline bool xlog_item_is_intent(struct xfs_log_item *lip)
+{
+ switch (lip->li_type) {
+ case XFS_LI_EFI:
+ case XFS_LI_RUI:
+ return true;
+ default:
+ return false;
+ }
+}
+
/*
- * When this is called, all of the EFIs which did not have
- * corresponding EFDs should be in the AIL. What we do now
- * is free the extents associated with each one.
+ * When this is called, all of the log intent items which did not have
+ * corresponding log done items should be in the AIL. What we do now
+ * is update the data structures associated with each one.
*
- * Since we process the EFIs in normal transactions, they
- * will be removed at some point after the commit. This prevents
- * us from just walking down the list processing each one.
- * We'll use a flag in the EFI to skip those that we've already
- * processed and use the AIL iteration mechanism's generation
- * count to try to speed this up at least a bit.
+ * Since we process the log intent items in normal transactions, they
+ * will be removed at some point after the commit. This prevents us
+ * from just walking down the list processing each one. We'll use a
+ * flag in the intent item to skip those that we've already processed
+ * and use the AIL iteration mechanism's generation count to try to
+ * speed this up at least a bit.
*
- * When we start, we know that the EFIs are the only things in
- * the AIL. As we process them, however, other items are added
- * to the AIL. Since everything added to the AIL must come after
- * everything already in the AIL, we stop processing as soon as
- * we see something other than an EFI in the AIL.
+ * When we start, we know that the intents are the only things in the
+ * AIL. As we process them, however, other items are added to the
+ * AIL.
*/
STATIC int
-xlog_recover_process_efis(
+xlog_recover_process_intents(
struct xlog *log)
{
struct xfs_log_item *lip;
- struct xfs_efi_log_item *efip;
int error = 0;
struct xfs_ail_cursor cur;
struct xfs_ail *ailp;
+ xfs_lsn_t last_lsn;
ailp = log->l_ailp;
spin_lock(&ailp->xa_lock);
lip = xfs_trans_ail_cursor_first(ailp, &cur, 0);
+ last_lsn = xlog_assign_lsn(log->l_curr_cycle, log->l_curr_block);
while (lip != NULL) {
/*
- * We're done when we see something other than an EFI.
- * There should be no EFIs left in the AIL now.
+ * We're done when we see something other than an intent.
+ * There should be no intents left in the AIL now.
*/
- if (lip->li_type != XFS_LI_EFI) {
+ if (!xlog_item_is_intent(lip)) {
#ifdef DEBUG
for (; lip; lip = xfs_trans_ail_cursor_next(ailp, &cur))
- ASSERT(lip->li_type != XFS_LI_EFI);
+ ASSERT(!xlog_item_is_intent(lip));
#endif
break;
}
/*
- * Skip EFIs that we've already processed.
+ * We should never see a redo item with a LSN higher than
+ * the last transaction we found in the log at the start
+ * of recovery.
*/
- efip = container_of(lip, struct xfs_efi_log_item, efi_item);
- if (test_bit(XFS_EFI_RECOVERED, &efip->efi_flags)) {
- lip = xfs_trans_ail_cursor_next(ailp, &cur);
- continue;
- }
+ ASSERT(XFS_LSN_CMP(last_lsn, lip->li_lsn) >= 0);
- spin_unlock(&ailp->xa_lock);
- error = xlog_recover_process_efi(log->l_mp, efip);
- spin_lock(&ailp->xa_lock);
+ switch (lip->li_type) {
+ case XFS_LI_EFI:
+ error = xlog_recover_process_efi(log->l_mp, ailp, lip);
+ break;
+ case XFS_LI_RUI:
+ error = xlog_recover_process_rui(log->l_mp, ailp, lip);
+ break;
+ }
if (error)
goto out;
lip = xfs_trans_ail_cursor_next(ailp, &cur);
}
/*
- * A cancel occurs when the mount has failed and we're bailing out. Release all
- * pending EFIs so they don't pin the AIL.
+ * A cancel occurs when the mount has failed and we're bailing out.
+ * Release all pending log intent items so they don't pin the AIL.
*/
STATIC int
-xlog_recover_cancel_efis(
+xlog_recover_cancel_intents(
struct xlog *log)
{
struct xfs_log_item *lip;
- struct xfs_efi_log_item *efip;
int error = 0;
struct xfs_ail_cursor cur;
struct xfs_ail *ailp;
lip = xfs_trans_ail_cursor_first(ailp, &cur, 0);
while (lip != NULL) {
/*
- * We're done when we see something other than an EFI.
- * There should be no EFIs left in the AIL now.
+ * We're done when we see something other than an intent.
+ * There should be no intents left in the AIL now.
*/
- if (lip->li_type != XFS_LI_EFI) {
+ if (!xlog_item_is_intent(lip)) {
#ifdef DEBUG
for (; lip; lip = xfs_trans_ail_cursor_next(ailp, &cur))
- ASSERT(lip->li_type != XFS_LI_EFI);
+ ASSERT(!xlog_item_is_intent(lip));
#endif
break;
}
- efip = container_of(lip, struct xfs_efi_log_item, efi_item);
-
- spin_unlock(&ailp->xa_lock);
- xfs_efi_release(efip);
- spin_lock(&ailp->xa_lock);
+ switch (lip->li_type) {
+ case XFS_LI_EFI:
+ xlog_recover_cancel_efi(log->l_mp, ailp, lip);
+ break;
+ case XFS_LI_RUI:
+ xlog_recover_cancel_rui(log->l_mp, ailp, lip);
+ break;
+ }
lip = xfs_trans_ail_cursor_next(ailp, &cur);
}
xfs_warn(mp, "Failed post-recovery per-ag init: %d", error);
return error;
}
+ mp->m_alloc_set_aside = xfs_alloc_set_aside(mp);
xlog_recover_check_summary(log);
*/
if (log->l_flags & XLOG_RECOVERY_NEEDED) {
int error;
- error = xlog_recover_process_efis(log);
+ error = xlog_recover_process_intents(log);
if (error) {
- xfs_alert(log->l_mp, "Failed to recover EFIs");
+ xfs_alert(log->l_mp, "Failed to recover intents");
return error;
}
+
/*
- * Sync the log to get all the EFIs out of the AIL.
+ * Sync the log to get all the intents out of the AIL.
* This isn't absolutely necessary, but it helps in
* case the unlink transactions would have problems
- * pushing the EFIs out of the way.
+ * pushing the intents out of the way.
*/
xfs_log_force(log->l_mp, XFS_LOG_SYNC);
int error = 0;
if (log->l_flags & XLOG_RECOVERY_NEEDED)
- error = xlog_recover_cancel_efis(log);
+ error = xlog_recover_cancel_intents(log);
return error;
}
projects / cascardo / linux.git / blobdiff