diff options
Diffstat (limited to 'fs/xfs/libxfs/xfs_defer.h')
-rw-r--r-- | fs/xfs/libxfs/xfs_defer.h | 49 |
1 files changed, 43 insertions, 6 deletions
diff --git a/fs/xfs/libxfs/xfs_defer.h b/fs/xfs/libxfs/xfs_defer.h index 7c28d7608ac6..4c3248d47a35 100644 --- a/fs/xfs/libxfs/xfs_defer.h +++ b/fs/xfs/libxfs/xfs_defer.h @@ -7,6 +7,7 @@ #define __XFS_DEFER_H__ struct xfs_defer_op_type; +struct xfs_defer_capture; /* * Header for deferred operation list. @@ -28,7 +29,7 @@ enum xfs_defer_ops_type { struct xfs_defer_pending { struct list_head dfp_list; /* pending items */ struct list_head dfp_work; /* work items */ - void *dfp_intent; /* log intent item */ + struct xfs_log_item *dfp_intent; /* log intent item */ void *dfp_done; /* log done item */ unsigned int dfp_count; /* # extent items */ enum xfs_defer_ops_type dfp_type; @@ -43,15 +44,15 @@ void xfs_defer_move(struct xfs_trans *dtp, struct xfs_trans *stp); /* Description of a deferred type. */ struct xfs_defer_op_type { - void (*abort_intent)(void *); - void *(*create_done)(struct xfs_trans *, void *, unsigned int); + struct xfs_log_item *(*create_intent)(struct xfs_trans *tp, + struct list_head *items, unsigned int count, bool sort); + void (*abort_intent)(struct xfs_log_item *intent); + void *(*create_done)(struct xfs_trans *tp, struct xfs_log_item *intent, + unsigned int count); int (*finish_item)(struct xfs_trans *, struct list_head *, void *, void **); void (*finish_cleanup)(struct xfs_trans *, void *, int); void (*cancel_item)(struct list_head *); - int (*diff_items)(void *, struct list_head *, struct list_head *); - void *(*create_intent)(struct xfs_trans *, uint); - void (*log_item)(struct xfs_trans *, void *, struct list_head *); unsigned int max_items; }; @@ -61,4 +62,40 @@ extern const struct xfs_defer_op_type xfs_rmap_update_defer_type; extern const struct xfs_defer_op_type xfs_extent_free_defer_type; extern const struct xfs_defer_op_type xfs_agfl_free_defer_type; +/* + * This structure enables a dfops user to detach the chain of deferred + * operations from a transaction so that they can be continued later. + */ +struct xfs_defer_capture { + /* List of other capture structures. */ + struct list_head dfc_list; + + /* Deferred ops state saved from the transaction. */ + struct list_head dfc_dfops; + unsigned int dfc_tpflags; + + /* Block reservations for the data and rt devices. */ + unsigned int dfc_blkres; + unsigned int dfc_rtxres; + + /* Log reservation saved from the transaction. */ + unsigned int dfc_logres; + + /* + * An inode reference that must be maintained to complete the deferred + * work. + */ + struct xfs_inode *dfc_capture_ip; +}; + +/* + * Functions to capture a chain of deferred operations and continue them later. + * This doesn't normally happen except log recovery. + */ +int xfs_defer_ops_capture_and_commit(struct xfs_trans *tp, + struct xfs_inode *capture_ip, struct list_head *capture_list); +void xfs_defer_ops_continue(struct xfs_defer_capture *d, struct xfs_trans *tp, + struct xfs_inode **captured_ipp); +void xfs_defer_ops_release(struct xfs_mount *mp, struct xfs_defer_capture *d); + #endif /* __XFS_DEFER_H__ */ |