// SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) 2000,2005 Silicon Graphics, Inc. * All Rights Reserved. */ #ifndef __XFS_LOG_RECOVER_H__ #define __XFS_LOG_RECOVER_H__ /* * Each log item type (XFS_LI_*) gets its own xlog_recover_item_ops to * 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 { … }; struct xlog_recover_item_ops { … }; extern const struct xlog_recover_item_ops xlog_icreate_item_ops; extern const struct xlog_recover_item_ops xlog_buf_item_ops; extern const struct xlog_recover_item_ops xlog_inode_item_ops; extern const struct xlog_recover_item_ops xlog_dquot_item_ops; extern const struct xlog_recover_item_ops xlog_quotaoff_item_ops; extern const struct xlog_recover_item_ops xlog_bui_item_ops; extern const struct xlog_recover_item_ops xlog_bud_item_ops; extern const struct xlog_recover_item_ops xlog_efi_item_ops; extern const struct xlog_recover_item_ops xlog_efd_item_ops; extern const struct xlog_recover_item_ops xlog_rui_item_ops; extern const struct xlog_recover_item_ops xlog_rud_item_ops; 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; /* * Macros, structures, prototypes for internal log manager use. */ #define XLOG_RHASH_BITS … #define XLOG_RHASH_SIZE … #define XLOG_RHASH_SHIFT … #define XLOG_RHASH(tid) … #define XLOG_MAX_REGIONS_IN_ITEM … /* * item headers are in ri_buf[0]. Additional buffers follow. */ struct xlog_recover_item { … }; struct xlog_recover { … }; #define ITEM_TYPE(i) … #define XLOG_RECOVER_CRCPASS … #define XLOG_RECOVER_PASS1 … #define XLOG_RECOVER_PASS2 … void xlog_buf_readahead(struct xlog *log, xfs_daddr_t blkno, uint len, const struct xfs_buf_ops *ops); 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); void xlog_free_buf_cancel_table(struct xlog *log); #ifdef DEBUG void xlog_check_buf_cancel_table(struct xlog *log); #else #define xlog_check_buf_cancel_table … #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_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__ */
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