Rebuild the reverse mapping btree from all primary metadata.
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
---
libxfs/xfs_refcount.c | 2 +-
libxfs/xfs_refcount.h | 3 +++
libxfs/xfs_rmap.c | 28 ++++++++++++++++++++++++++++
libxfs/xfs_rmap.h | 1 +
4 files changed, 33 insertions(+), 1 deletion(-)
diff --git a/libxfs/xfs_refcount.c b/libxfs/xfs_refcount.c
index 124d5c0..be0eab3 100644
--- a/libxfs/xfs_refcount.c
+++ b/libxfs/xfs_refcount.c
@@ -87,7 +87,7 @@ xfs_refcount_lookup_ge(
}
/* Convert on-disk record to in-core format. */
-static inline void
+void
xfs_refcount_btrec_to_irec(
union xfs_btree_rec *rec,
struct xfs_refcount_irec *irec)
diff --git a/libxfs/xfs_refcount.h b/libxfs/xfs_refcount.h
index 78cb142..5973c56 100644
--- a/libxfs/xfs_refcount.h
+++ b/libxfs/xfs_refcount.h
@@ -69,5 +69,8 @@ extern int xfs_refcount_recover_cow_leftovers(struct xfs_mount *mp,
extern int xfs_refcount_has_record(struct xfs_btree_cur *cur,
xfs_agblock_t bno, xfs_extlen_t len, bool *exists);
+union xfs_btree_rec;
+extern void xfs_refcount_btrec_to_irec(union xfs_btree_rec *rec,
+ struct xfs_refcount_irec *irec);
#endif /* __XFS_REFCOUNT_H__ */
diff --git a/libxfs/xfs_rmap.c b/libxfs/xfs_rmap.c
index c7d8aac..77ddb0b 100644
--- a/libxfs/xfs_rmap.c
+++ b/libxfs/xfs_rmap.c
@@ -1975,6 +1975,34 @@ xfs_rmap_map_shared(
return error;
}
+/* Insert a raw rmap into the rmapbt. */
+int
+xfs_rmap_map_raw(
+ struct xfs_btree_cur *cur,
+ struct xfs_rmap_irec *rmap)
+{
+ struct xfs_owner_info oinfo;
+
+ oinfo.oi_owner = rmap->rm_owner;
+ oinfo.oi_offset = rmap->rm_offset;
+ oinfo.oi_flags = 0;
+ if (rmap->rm_flags & XFS_RMAP_ATTR_FORK)
+ oinfo.oi_flags |= XFS_OWNER_INFO_ATTR_FORK;
+ if (rmap->rm_flags & XFS_RMAP_BMBT_BLOCK)
+ oinfo.oi_flags |= XFS_OWNER_INFO_BMBT_BLOCK;
+
+ if (rmap->rm_flags || XFS_RMAP_NON_INODE_OWNER(rmap->rm_owner))
+ return xfs_rmap_map(cur, rmap->rm_startblock,
+ rmap->rm_blockcount,
+ rmap->rm_flags & XFS_RMAP_UNWRITTEN,
+ &oinfo);
+
+ return xfs_rmap_map_shared(cur, rmap->rm_startblock,
+ rmap->rm_blockcount,
+ rmap->rm_flags & XFS_RMAP_UNWRITTEN,
+ &oinfo);
+}
+
struct xfs_rmap_query_range_info {
xfs_rmap_query_range_fn fn;
void *priv;
diff --git a/libxfs/xfs_rmap.h b/libxfs/xfs_rmap.h
index 606efe3..eac90d7 100644
--- a/libxfs/xfs_rmap.h
+++ b/libxfs/xfs_rmap.h
@@ -225,5 +225,6 @@ int xfs_rmap_record_exists(struct xfs_btree_cur *cur, xfs_fsblock_t bno,
int xfs_rmap_has_other_keys(struct xfs_btree_cur *cur, xfs_fsblock_t bno,
xfs_filblks_t len, struct xfs_owner_info *oinfo,
bool *has_rmap);
+int xfs_rmap_map_raw(struct xfs_btree_cur *cur, struct xfs_rmap_irec *rmap);
#endif /* __XFS_RMAP_H__ */
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