[PATCH 09/37] xfs: support recovering rmap intent items targetting realtime extents

Darrick J. Wong
2024-12-13T01:02:56Z

From: Darrick J. Wong <djwong@kernel.org>

Now that we have rmap on the realtime device and rmap intent items that
target the realtime device, log recovery has to support remapping
extents on the realtime volume. Make this work. Identify rtrmapbt
blocks in the log correctly so that we can validate them during log
recovery.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
---
fs/xfs/xfs_buf_item_recover.c | 4 ++++
fs/xfs/xfs_rmap_item.c | 15 ++++++++++++---
2 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/fs/xfs/xfs_buf_item_recover.c b/fs/xfs/xfs_buf_item_recover.c
index 3d0c6402cb3634..4f2e4ea29e1f57 100644
--- a/fs/xfs/xfs_buf_item_recover.c
+++ b/fs/xfs/xfs_buf_item_recover.c
@@ -262,6 +262,9 @@ xlog_recover_validate_buf_type(
case XFS_BMAP_MAGIC:
bp->b_ops = &xfs_bmbt_buf_ops;
break;
+ case XFS_RTRMAP_CRC_MAGIC:
+ bp->b_ops = &xfs_rtrmapbt_buf_ops;
+ break;
case XFS_RMAP_CRC_MAGIC:
bp->b_ops = &xfs_rmapbt_buf_ops;
break;
@@ -855,6 +858,7 @@ xlog_recover_get_buf_lsn(
uuid = &btb->bb_u.s.bb_uuid;
break;
}
+ case XFS_RTRMAP_CRC_MAGIC:
case XFS_BMAP_CRC_MAGIC:
case XFS_BMAP_MAGIC: {
struct xfs_btree_block *btb = blk;
diff --git a/fs/xfs/xfs_rmap_item.c b/fs/xfs/xfs_rmap_item.c
index e8caa600a95cae..89decffe76c8b5 100644
--- a/fs/xfs/xfs_rmap_item.c
+++ b/fs/xfs/xfs_rmap_item.c
@@ -459,6 +459,7 @@ xfs_rmap_update_abort_intent(
static inline bool
xfs_rui_validate_map(
struct xfs_mount *mp,
+ bool isrt,
struct xfs_map_extent *map)
{
if (!xfs_has_rmapbt(mp))
@@ -488,6 +489,9 @@ xfs_rui_validate_map(
if (!xfs_verify_fileext(mp, map->me_startoff, map->me_len))
return false;

+ if (isrt)
+ return xfs_verify_rtbext(mp, map->me_startblock, map->me_len);
+
return xfs_verify_fsbext(mp, map->me_startblock, map->me_len);
}

@@ -495,6 +499,7 @@ static inline void
xfs_rui_recover_work(
struct xfs_mount *mp,
struct xfs_defer_pending *dfp,
+ bool isrt,
const struct xfs_map_extent *map)
{
struct xfs_rmap_intent *ri;
@@ -539,7 +544,9 @@ xfs_rui_recover_work(
ri->ri_bmap.br_blockcount = map->me_len;
ri->ri_bmap.br_state = (map->me_flags & XFS_RMAP_EXTENT_UNWRITTEN) ?
XFS_EXT_UNWRITTEN : XFS_EXT_NORM;
- ri->ri_group = xfs_group_intent_get(mp, map->me_startblock, XG_TYPE_AG);
+ ri->ri_group = xfs_group_intent_get(mp, map->me_startblock,
+ isrt ? XG_TYPE_RTG : XG_TYPE_AG);
+ ri->ri_realtime = isrt;

xfs_defer_add_item(dfp, &ri->ri_list);
}
@@ -558,6 +565,7 @@ xfs_rmap_recover_work(
struct xfs_rui_log_item *ruip = RUI_ITEM(lip);
struct xfs_trans *tp;
struct xfs_mount *mp = lip->li_log->l_mp;
+ bool isrt = xfs_rui_item_isrt(lip);
int i;
int error = 0;

@@ -567,7 +575,7 @@ xfs_rmap_recover_work(
* just toss the RUI.
*/
for (i = 0; i < ruip->rui_format.rui_nextents; i++) {
- if (!xfs_rui_validate_map(mp,
+ if (!xfs_rui_validate_map(mp, isrt,
&ruip->rui_format.rui_extents[i])) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp,
&ruip->rui_format,
@@ -575,7 +583,8 @@ xfs_rmap_recover_work(
return -EFSCORRUPTED;
}

- xfs_rui_recover_work(mp, dfp, &ruip->rui_format.rui_extents[i]);
+ xfs_rui_recover_work(mp, dfp, isrt,
+ &ruip->rui_format.rui_extents[i]);
}

resv = xlog_recover_resv(&M_RES(mp)->tr_itruncate);