diff options
Diffstat (limited to 'fs/xfs/libxfs/xfs_log_recover.h')
| -rw-r--r-- | fs/xfs/libxfs/xfs_log_recover.h | 46 |
1 files changed, 43 insertions, 3 deletions
diff --git a/fs/xfs/libxfs/xfs_log_recover.h b/fs/xfs/libxfs/xfs_log_recover.h index 2420865f3007..9e712e62369c 100644 --- a/fs/xfs/libxfs/xfs_log_recover.h +++ b/fs/xfs/libxfs/xfs_log_recover.h @@ -11,6 +11,7 @@ * define how recovery should work for that type of log item. */ struct xlog_recover_item; +struct xfs_defer_op_type; /* Sorting hat for log items as they're read in. */ enum xlog_recover_reorder { @@ -74,6 +75,14 @@ extern const struct xlog_recover_item_ops xlog_cui_item_ops; extern const struct xlog_recover_item_ops xlog_cud_item_ops; extern const struct xlog_recover_item_ops xlog_attri_item_ops; extern const struct xlog_recover_item_ops xlog_attrd_item_ops; +extern const struct xlog_recover_item_ops xlog_xmi_item_ops; +extern const struct xlog_recover_item_ops xlog_xmd_item_ops; +extern const struct xlog_recover_item_ops xlog_rtefi_item_ops; +extern const struct xlog_recover_item_ops xlog_rtefd_item_ops; +extern const struct xlog_recover_item_ops xlog_rtrui_item_ops; +extern const struct xlog_recover_item_ops xlog_rtrud_item_ops; +extern const struct xlog_recover_item_ops xlog_rtcui_item_ops; +extern const struct xlog_recover_item_ops xlog_rtcud_item_ops; /* * Macros, structures, prototypes for internal log manager use. @@ -95,20 +104,20 @@ struct xlog_recover_item { struct list_head ri_list; int ri_cnt; /* count of regions found */ int ri_total; /* total regions */ - struct xfs_log_iovec *ri_buf; /* ptr to regions buffer */ + struct kvec *ri_buf; /* ptr to regions buffer */ const struct xlog_recover_item_ops *ri_ops; }; struct xlog_recover { struct hlist_node r_list; xlog_tid_t r_log_tid; /* log's transaction id */ - xfs_trans_header_t r_theader; /* trans header for partial */ + struct xfs_trans_header r_theader; /* trans header for partial */ int r_state; /* not needed */ xfs_lsn_t r_lsn; /* xact lsn */ struct list_head r_itemq; /* q for items */ }; -#define ITEM_TYPE(i) (*(unsigned short *)(i)->ri_buf[0].i_addr) +#define ITEM_TYPE(i) (*(unsigned short *)(i)->ri_buf[0].iov_base) #define XLOG_RECOVER_CRCPASS 0 #define XLOG_RECOVER_PASS1 1 @@ -120,6 +129,8 @@ bool xlog_is_buffer_cancelled(struct xlog *log, xfs_daddr_t blkno, uint len); int xlog_recover_iget(struct xfs_mount *mp, xfs_ino_t ino, struct xfs_inode **ipp); +int xlog_recover_iget_handle(struct xfs_mount *mp, xfs_ino_t ino, uint32_t gen, + struct xfs_inode **ipp); void xlog_recover_release_intent(struct xlog *log, unsigned short intent_type, uint64_t intent_id); int xlog_alloc_buf_cancel_table(struct xlog *log); @@ -131,4 +142,33 @@ void xlog_check_buf_cancel_table(struct xlog *log); #define xlog_check_buf_cancel_table(log) do { } while (0) #endif +/* + * Transform a regular reservation into one suitable for recovery of a log + * intent item. + * + * Intent recovery only runs a single step of the transaction chain and defers + * the rest to a separate transaction. Therefore, we reduce logcount to 1 here + * to avoid livelocks if the log grant space is nearly exhausted due to the + * recovered intent pinning the tail. Keep the same logflags to avoid tripping + * asserts elsewhere. Struct copies abound below. + */ +static inline struct xfs_trans_res +xlog_recover_resv(const struct xfs_trans_res *r) +{ + struct xfs_trans_res ret = { + .tr_logres = r->tr_logres, + .tr_logcount = 1, + .tr_logflags = r->tr_logflags, + }; + + return ret; +} + +struct xfs_defer_pending; + +void xlog_recover_intent_item(struct xlog *log, struct xfs_log_item *lip, + xfs_lsn_t lsn, const struct xfs_defer_op_type *ops); +int xlog_recover_finish_intent(struct xfs_trans *tp, + struct xfs_defer_pending *dfp); + #endif /* __XFS_LOG_RECOVER_H__ */ |