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xfs: log refcount intent items

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Provide a mechanism for higher levels to create CUI/CUD items, submit
them to the log, and a stub function to deal with recovered CUI items.
These parts will be connected to the refcountbt in a later patch.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Darrick J. Wong
2016-10-03 09:11:21 -07:00
parent baf4bcacb7
commit f997ee2137
8 changed files with 375 additions and 0 deletions
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11
fs/xfs/xfs_trans.h
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@@ -36,6 +36,7 @@ struct xfs_busy_extent;
struct xfs_rud_log_item;
struct xfs_rui_log_item;
struct xfs_btree_cur;
struct xfs_cui_log_item;
typedef struct xfs_log_item {
struct list_head li_ail; /* AIL pointers */
@@ -248,4 +249,14 @@ int xfs_trans_log_finish_rmap_update(struct xfs_trans *tp,
xfs_fsblock_t startblock, xfs_filblks_t blockcount,
xfs_exntst_t state, struct xfs_btree_cur **pcur);
/* refcount updates */
enum xfs_refcount_intent_type;
struct xfs_cud_log_item *xfs_trans_get_cud(struct xfs_trans *tp,
struct xfs_cui_log_item *cuip);
int xfs_trans_log_finish_refcount_update(struct xfs_trans *tp,
struct xfs_cud_log_item *cudp,
enum xfs_refcount_intent_type type, xfs_fsblock_t startblock,
xfs_extlen_t blockcount, struct xfs_btree_cur **pcur);
#endif /* __XFS_TRANS_H__ */