diff options
Diffstat (limited to '')
| -rw-r--r-- | fs/xfs/libxfs/xfs_defer.h | 59 |
1 files changed, 42 insertions, 17 deletions
diff --git a/fs/xfs/libxfs/xfs_defer.h b/fs/xfs/libxfs/xfs_defer.h index 8788ad5f6a..18a9fb92dd 100644 --- a/fs/xfs/libxfs/xfs_defer.h +++ b/fs/xfs/libxfs/xfs_defer.h @@ -11,19 +11,6 @@ struct xfs_defer_op_type; struct xfs_defer_capture; /* - * Header for deferred operation list. - */ -enum xfs_defer_ops_type { - XFS_DEFER_OPS_TYPE_BMAP, - XFS_DEFER_OPS_TYPE_REFCOUNT, - XFS_DEFER_OPS_TYPE_RMAP, - XFS_DEFER_OPS_TYPE_FREE, - XFS_DEFER_OPS_TYPE_AGFL_FREE, - XFS_DEFER_OPS_TYPE_ATTR, - XFS_DEFER_OPS_TYPE_MAX, -}; - -/* * Save a log intent item and a list of extents, so that we can replay * whatever action had to happen to the extent list and file the log done * item. @@ -33,19 +20,35 @@ struct xfs_defer_pending { struct list_head dfp_work; /* work items */ struct xfs_log_item *dfp_intent; /* log intent item */ struct xfs_log_item *dfp_done; /* log done item */ + const struct xfs_defer_op_type *dfp_ops; unsigned int dfp_count; /* # extent items */ - enum xfs_defer_ops_type dfp_type; + unsigned int dfp_flags; }; -void xfs_defer_add(struct xfs_trans *tp, enum xfs_defer_ops_type type, - struct list_head *h); +/* + * Create a log intent item for this deferred item, but don't actually finish + * the work. Caller must clear this before the final transaction commit. + */ +#define XFS_DEFER_PAUSED (1U << 0) + +#define XFS_DEFER_PENDING_STRINGS \ + { XFS_DEFER_PAUSED, "paused" } + +void xfs_defer_item_pause(struct xfs_trans *tp, struct xfs_defer_pending *dfp); +void xfs_defer_item_unpause(struct xfs_trans *tp, struct xfs_defer_pending *dfp); + +struct xfs_defer_pending *xfs_defer_add(struct xfs_trans *tp, struct list_head *h, + const struct xfs_defer_op_type *ops); int xfs_defer_finish_noroll(struct xfs_trans **tp); int xfs_defer_finish(struct xfs_trans **tp); +int xfs_defer_finish_one(struct xfs_trans *tp, struct xfs_defer_pending *dfp); void xfs_defer_cancel(struct xfs_trans *); void xfs_defer_move(struct xfs_trans *dtp, struct xfs_trans *stp); /* Description of a deferred type. */ struct xfs_defer_op_type { + const char *name; + unsigned int max_items; 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); @@ -56,7 +59,11 @@ struct xfs_defer_op_type { void (*finish_cleanup)(struct xfs_trans *tp, struct xfs_btree_cur *state, int error); void (*cancel_item)(struct list_head *item); - unsigned int max_items; + int (*recover_work)(struct xfs_defer_pending *dfp, + struct list_head *capture_list); + struct xfs_log_item *(*relog_intent)(struct xfs_trans *tp, + struct xfs_log_item *intent, + struct xfs_log_item *done_item); }; extern const struct xfs_defer_op_type xfs_bmap_update_defer_type; @@ -125,7 +132,25 @@ void xfs_defer_ops_capture_abort(struct xfs_mount *mp, struct xfs_defer_capture *d); void xfs_defer_resources_rele(struct xfs_defer_resources *dres); +void xfs_defer_start_recovery(struct xfs_log_item *lip, + struct list_head *r_dfops, const struct xfs_defer_op_type *ops); +void xfs_defer_cancel_recovery(struct xfs_mount *mp, + struct xfs_defer_pending *dfp); +int xfs_defer_finish_recovery(struct xfs_mount *mp, + struct xfs_defer_pending *dfp, struct list_head *capture_list); + +static inline void +xfs_defer_add_item( + struct xfs_defer_pending *dfp, + struct list_head *work) +{ + list_add_tail(work, &dfp->dfp_work); + dfp->dfp_count++; +} + int __init xfs_defer_init_item_caches(void); void xfs_defer_destroy_item_caches(void); +void xfs_defer_add_barrier(struct xfs_trans *tp); + #endif /* __XFS_DEFER_H__ */ |