diff options
Diffstat (limited to 'fs/xfs/xfs_trans.h')
| -rw-r--r-- | fs/xfs/xfs_trans.h | 137 |
1 files changed, 97 insertions, 40 deletions
diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h index 752c7fef9de7..55819785941c 100644 --- a/fs/xfs/xfs_trans.h +++ b/fs/xfs/xfs_trans.h @@ -8,6 +8,7 @@ /* kernel only transaction subsystem defines */ +struct xlog; struct xfs_buf; struct xfs_buftarg; struct xfs_efd_log_item; @@ -31,23 +32,20 @@ struct xfs_log_item { struct list_head li_ail; /* AIL pointers */ struct list_head li_trans; /* transaction list */ xfs_lsn_t li_lsn; /* last on-disk lsn */ - struct xfs_mount *li_mountp; /* ptr to fs mount */ + struct xlog *li_log; struct xfs_ail *li_ailp; /* ptr to AIL */ uint li_type; /* item type */ unsigned long li_flags; /* misc flags */ struct xfs_buf *li_buf; /* real buffer pointer */ struct list_head li_bio_list; /* buffer item list */ - void (*li_cb)(struct xfs_buf *, - struct xfs_log_item *); - /* buffer item iodone */ - /* callback func */ const struct xfs_item_ops *li_ops; /* function list */ /* delayed logging */ struct list_head li_cil; /* CIL pointers */ struct xfs_log_vec *li_lv; /* active log vector */ struct xfs_log_vec *li_lv_shadow; /* standby vector */ - xfs_lsn_t li_seq; /* CIL commit seq */ + xfs_csn_t li_seq; /* CIL commit seq */ + uint32_t li_order_id; /* CIL commit order */ }; /* @@ -58,13 +56,15 @@ struct xfs_log_item { #define XFS_LI_IN_AIL 0 #define XFS_LI_ABORTED 1 #define XFS_LI_FAILED 2 -#define XFS_LI_DIRTY 3 /* log item dirty in transaction */ +#define XFS_LI_DIRTY 3 +#define XFS_LI_WHITEOUT 4 #define XFS_LI_FLAGS \ - { (1 << XFS_LI_IN_AIL), "IN_AIL" }, \ - { (1 << XFS_LI_ABORTED), "ABORTED" }, \ - { (1 << XFS_LI_FAILED), "FAILED" }, \ - { (1 << XFS_LI_DIRTY), "DIRTY" } + { (1u << XFS_LI_IN_AIL), "IN_AIL" }, \ + { (1u << XFS_LI_ABORTED), "ABORTED" }, \ + { (1u << XFS_LI_FAILED), "FAILED" }, \ + { (1u << XFS_LI_DIRTY), "DIRTY" }, \ + { (1u << XFS_LI_WHITEOUT), "WHITEOUT" } struct xfs_item_ops { unsigned flags; @@ -72,18 +72,42 @@ struct xfs_item_ops { void (*iop_format)(struct xfs_log_item *, struct xfs_log_vec *); void (*iop_pin)(struct xfs_log_item *); void (*iop_unpin)(struct xfs_log_item *, int remove); + uint64_t (*iop_sort)(struct xfs_log_item *lip); + int (*iop_precommit)(struct xfs_trans *tp, struct xfs_log_item *lip); + void (*iop_committing)(struct xfs_log_item *lip, xfs_csn_t seq); + xfs_lsn_t (*iop_committed)(struct xfs_log_item *, xfs_lsn_t); uint (*iop_push)(struct xfs_log_item *, struct list_head *); - void (*iop_committing)(struct xfs_log_item *, xfs_lsn_t commit_lsn); void (*iop_release)(struct xfs_log_item *); - xfs_lsn_t (*iop_committed)(struct xfs_log_item *, xfs_lsn_t); - void (*iop_error)(struct xfs_log_item *, xfs_buf_t *); + int (*iop_recover)(struct xfs_log_item *lip, + struct list_head *capture_list); + bool (*iop_match)(struct xfs_log_item *item, uint64_t id); + struct xfs_log_item *(*iop_relog)(struct xfs_log_item *intent, + struct xfs_trans *tp); + struct xfs_log_item *(*iop_intent)(struct xfs_log_item *intent_done); }; /* - * Release the log item as soon as committed. This is for items just logging - * intents that never need to be written back in place. + * Log item ops flags + */ +/* + * Release the log item when the journal commits instead of inserting into the + * AIL for writeback tracking and/or log tail pinning. */ #define XFS_ITEM_RELEASE_WHEN_COMMITTED (1 << 0) +#define XFS_ITEM_INTENT (1 << 1) +#define XFS_ITEM_INTENT_DONE (1 << 2) + +static inline bool +xlog_item_is_intent(struct xfs_log_item *lip) +{ + return lip->li_ops->flags & XFS_ITEM_INTENT; +} + +static inline bool +xlog_item_is_intent_done(struct xfs_log_item *lip) +{ + return lip->li_ops->flags & XFS_ITEM_INTENT_DONE; +} void xfs_log_item_init(struct xfs_mount *mp, struct xfs_log_item *item, int type, const struct xfs_item_ops *ops); @@ -97,12 +121,6 @@ void xfs_log_item_init(struct xfs_mount *mp, struct xfs_log_item *item, #define XFS_ITEM_FLUSHING 3 /* - * Deferred operation item relogging limits. - */ -#define XFS_DEFER_OPS_NR_INODES 2 /* join up to two inodes */ -#define XFS_DEFER_OPS_NR_BUFS 2 /* join up to two buffers */ - -/* * This is the structure maintained for every active transaction. */ typedef struct xfs_trans { @@ -124,11 +142,6 @@ typedef struct xfs_trans { int64_t t_res_fdblocks_delta; /* on-disk only chg */ int64_t t_frextents_delta;/* superblock freextents chg*/ int64_t t_res_frextents_delta; /* on-disk only chg */ -#if defined(DEBUG) || defined(XFS_WARN) - int64_t t_ag_freeblks_delta; /* debugging counter */ - int64_t t_ag_flist_delta; /* debugging counter */ - int64_t t_ag_btree_delta; /* debugging counter */ -#endif int64_t t_dblocks_delta;/* superblock dblocks change */ int64_t t_agcount_delta;/* superblock agcount change */ int64_t t_imaxpct_delta;/* superblock imaxpct change */ @@ -149,16 +162,6 @@ typedef struct xfs_trans { */ #define xfs_trans_set_sync(tp) ((tp)->t_flags |= XFS_TRANS_SYNC) -#if defined(DEBUG) || defined(XFS_WARN) -#define xfs_trans_agblocks_delta(tp, d) ((tp)->t_ag_freeblks_delta += (int64_t)d) -#define xfs_trans_agflist_delta(tp, d) ((tp)->t_ag_flist_delta += (int64_t)d) -#define xfs_trans_agbtree_delta(tp, d) ((tp)->t_ag_btree_delta += (int64_t)d) -#else -#define xfs_trans_agblocks_delta(tp, d) -#define xfs_trans_agflist_delta(tp, d) -#define xfs_trans_agbtree_delta(tp, d) -#endif - /* * XFS transaction mechanism exported interfaces. */ @@ -179,7 +182,7 @@ xfs_trans_get_buf( struct xfs_buftarg *target, xfs_daddr_t blkno, int numblks, - uint flags, + xfs_buf_flags_t flags, struct xfs_buf **bpp) { DEFINE_SINGLE_BUF_MAP(map, blkno, numblks); @@ -210,7 +213,7 @@ xfs_trans_read_buf( flags, bpp, ops); } -struct xfs_buf *xfs_trans_getsb(xfs_trans_t *, struct xfs_mount *); +struct xfs_buf *xfs_trans_getsb(struct xfs_trans *); void xfs_trans_brelse(xfs_trans_t *, struct xfs_buf *); void xfs_trans_bjoin(xfs_trans_t *, struct xfs_buf *); @@ -242,6 +245,60 @@ void xfs_trans_buf_set_type(struct xfs_trans *, struct xfs_buf *, void xfs_trans_buf_copy_type(struct xfs_buf *dst_bp, struct xfs_buf *src_bp); -extern kmem_zone_t *xfs_trans_zone; +extern struct kmem_cache *xfs_trans_cache; + +static inline struct xfs_log_item * +xfs_trans_item_relog( + struct xfs_log_item *lip, + struct xfs_trans *tp) +{ + return lip->li_ops->iop_relog(lip, tp); +} + +struct xfs_dquot; + +int xfs_trans_alloc_inode(struct xfs_inode *ip, struct xfs_trans_res *resv, + unsigned int dblocks, unsigned int rblocks, bool force, + struct xfs_trans **tpp); +int xfs_trans_alloc_icreate(struct xfs_mount *mp, struct xfs_trans_res *resv, + struct xfs_dquot *udqp, struct xfs_dquot *gdqp, + struct xfs_dquot *pdqp, unsigned int dblocks, + struct xfs_trans **tpp); +int xfs_trans_alloc_ichange(struct xfs_inode *ip, struct xfs_dquot *udqp, + struct xfs_dquot *gdqp, struct xfs_dquot *pdqp, bool force, + struct xfs_trans **tpp); +int xfs_trans_alloc_dir(struct xfs_inode *dp, struct xfs_trans_res *resv, + struct xfs_inode *ip, unsigned int *dblocks, + struct xfs_trans **tpp, int *nospace_error); + +static inline void +xfs_trans_set_context( + struct xfs_trans *tp) +{ + ASSERT(current->journal_info == NULL); + tp->t_pflags = memalloc_nofs_save(); + current->journal_info = tp; +} + +static inline void +xfs_trans_clear_context( + struct xfs_trans *tp) +{ + if (current->journal_info == tp) { + memalloc_nofs_restore(tp->t_pflags); + current->journal_info = NULL; + } +} + +static inline void +xfs_trans_switch_context( + struct xfs_trans *old_tp, + struct xfs_trans *new_tp) +{ + ASSERT(current->journal_info == old_tp); + new_tp->t_pflags = old_tp->t_pflags; + old_tp->t_pflags = 0; + current->journal_info = new_tp; +} #endif /* __XFS_TRANS_H__ */ |