0f37d1780c
The majority of remaining references to struct xfs_defer_ops in XFS are associated with xfs_defer_add(). At this point, there are no more external xfs_defer_ops users left. All instances of xfs_defer_ops are embedded in the transaction, which means we can safely pass the transaction down to the dfops add interface. Update xfs_defer_add() to receive the transaction as a parameter. Various subsystems implement wrappers to allocate and construct the context specific data structures for the associated deferred operation type. Update these to also carry the transaction down as needed and clean up unused dfops parameters along the way. This removes most of the remaining references to struct xfs_defer_ops throughout the code and facilitates removal of the structure. Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> [darrick: fix unused variable warnings with ftrace disabled] Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
229 lines
6.4 KiB
C
229 lines
6.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2016 Oracle. All Rights Reserved.
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* Author: Darrick J. Wong <darrick.wong@oracle.com>
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*/
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#ifndef __XFS_RMAP_H__
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#define __XFS_RMAP_H__
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static inline void
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xfs_rmap_ag_owner(
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struct xfs_owner_info *oi,
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uint64_t owner)
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{
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oi->oi_owner = owner;
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oi->oi_offset = 0;
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oi->oi_flags = 0;
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}
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static inline void
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xfs_rmap_ino_bmbt_owner(
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struct xfs_owner_info *oi,
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xfs_ino_t ino,
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int whichfork)
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{
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oi->oi_owner = ino;
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oi->oi_offset = 0;
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oi->oi_flags = XFS_OWNER_INFO_BMBT_BLOCK;
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if (whichfork == XFS_ATTR_FORK)
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oi->oi_flags |= XFS_OWNER_INFO_ATTR_FORK;
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}
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static inline void
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xfs_rmap_ino_owner(
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struct xfs_owner_info *oi,
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xfs_ino_t ino,
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int whichfork,
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xfs_fileoff_t offset)
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{
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oi->oi_owner = ino;
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oi->oi_offset = offset;
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oi->oi_flags = 0;
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if (whichfork == XFS_ATTR_FORK)
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oi->oi_flags |= XFS_OWNER_INFO_ATTR_FORK;
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}
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static inline void
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xfs_rmap_skip_owner_update(
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struct xfs_owner_info *oi)
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{
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xfs_rmap_ag_owner(oi, XFS_RMAP_OWN_NULL);
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}
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static inline bool
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xfs_rmap_should_skip_owner_update(
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struct xfs_owner_info *oi)
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{
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return oi->oi_owner == XFS_RMAP_OWN_NULL;
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}
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static inline void
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xfs_rmap_any_owner_update(
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struct xfs_owner_info *oi)
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{
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xfs_rmap_ag_owner(oi, XFS_RMAP_OWN_UNKNOWN);
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}
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/* Reverse mapping functions. */
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struct xfs_buf;
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static inline __u64
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xfs_rmap_irec_offset_pack(
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const struct xfs_rmap_irec *irec)
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{
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__u64 x;
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x = XFS_RMAP_OFF(irec->rm_offset);
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if (irec->rm_flags & XFS_RMAP_ATTR_FORK)
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x |= XFS_RMAP_OFF_ATTR_FORK;
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if (irec->rm_flags & XFS_RMAP_BMBT_BLOCK)
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x |= XFS_RMAP_OFF_BMBT_BLOCK;
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if (irec->rm_flags & XFS_RMAP_UNWRITTEN)
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x |= XFS_RMAP_OFF_UNWRITTEN;
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return x;
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}
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static inline int
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xfs_rmap_irec_offset_unpack(
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__u64 offset,
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struct xfs_rmap_irec *irec)
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{
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if (offset & ~(XFS_RMAP_OFF_MASK | XFS_RMAP_OFF_FLAGS))
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return -EFSCORRUPTED;
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irec->rm_offset = XFS_RMAP_OFF(offset);
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if (offset & XFS_RMAP_OFF_ATTR_FORK)
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irec->rm_flags |= XFS_RMAP_ATTR_FORK;
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if (offset & XFS_RMAP_OFF_BMBT_BLOCK)
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irec->rm_flags |= XFS_RMAP_BMBT_BLOCK;
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if (offset & XFS_RMAP_OFF_UNWRITTEN)
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irec->rm_flags |= XFS_RMAP_UNWRITTEN;
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return 0;
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}
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static inline void
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xfs_owner_info_unpack(
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struct xfs_owner_info *oinfo,
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uint64_t *owner,
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uint64_t *offset,
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unsigned int *flags)
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{
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unsigned int r = 0;
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*owner = oinfo->oi_owner;
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*offset = oinfo->oi_offset;
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if (oinfo->oi_flags & XFS_OWNER_INFO_ATTR_FORK)
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r |= XFS_RMAP_ATTR_FORK;
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if (oinfo->oi_flags & XFS_OWNER_INFO_BMBT_BLOCK)
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r |= XFS_RMAP_BMBT_BLOCK;
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*flags = r;
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}
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static inline void
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xfs_owner_info_pack(
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struct xfs_owner_info *oinfo,
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uint64_t owner,
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uint64_t offset,
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unsigned int flags)
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{
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oinfo->oi_owner = owner;
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oinfo->oi_offset = XFS_RMAP_OFF(offset);
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oinfo->oi_flags = 0;
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if (flags & XFS_RMAP_ATTR_FORK)
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oinfo->oi_flags |= XFS_OWNER_INFO_ATTR_FORK;
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if (flags & XFS_RMAP_BMBT_BLOCK)
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oinfo->oi_flags |= XFS_OWNER_INFO_BMBT_BLOCK;
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}
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int xfs_rmap_alloc(struct xfs_trans *tp, struct xfs_buf *agbp,
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xfs_agnumber_t agno, xfs_agblock_t bno, xfs_extlen_t len,
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struct xfs_owner_info *oinfo);
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int xfs_rmap_free(struct xfs_trans *tp, struct xfs_buf *agbp,
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xfs_agnumber_t agno, xfs_agblock_t bno, xfs_extlen_t len,
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struct xfs_owner_info *oinfo);
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int xfs_rmap_lookup_le(struct xfs_btree_cur *cur, xfs_agblock_t bno,
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xfs_extlen_t len, uint64_t owner, uint64_t offset,
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unsigned int flags, int *stat);
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int xfs_rmap_lookup_eq(struct xfs_btree_cur *cur, xfs_agblock_t bno,
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xfs_extlen_t len, uint64_t owner, uint64_t offset,
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unsigned int flags, int *stat);
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int xfs_rmap_insert(struct xfs_btree_cur *rcur, xfs_agblock_t agbno,
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xfs_extlen_t len, uint64_t owner, uint64_t offset,
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unsigned int flags);
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int xfs_rmap_get_rec(struct xfs_btree_cur *cur, struct xfs_rmap_irec *irec,
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int *stat);
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typedef int (*xfs_rmap_query_range_fn)(
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struct xfs_btree_cur *cur,
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struct xfs_rmap_irec *rec,
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void *priv);
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int xfs_rmap_query_range(struct xfs_btree_cur *cur,
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struct xfs_rmap_irec *low_rec, struct xfs_rmap_irec *high_rec,
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xfs_rmap_query_range_fn fn, void *priv);
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int xfs_rmap_query_all(struct xfs_btree_cur *cur, xfs_rmap_query_range_fn fn,
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void *priv);
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enum xfs_rmap_intent_type {
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XFS_RMAP_MAP,
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XFS_RMAP_MAP_SHARED,
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XFS_RMAP_UNMAP,
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XFS_RMAP_UNMAP_SHARED,
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XFS_RMAP_CONVERT,
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XFS_RMAP_CONVERT_SHARED,
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XFS_RMAP_ALLOC,
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XFS_RMAP_FREE,
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};
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struct xfs_rmap_intent {
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struct list_head ri_list;
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enum xfs_rmap_intent_type ri_type;
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uint64_t ri_owner;
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int ri_whichfork;
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struct xfs_bmbt_irec ri_bmap;
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};
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/* functions for updating the rmapbt based on bmbt map/unmap operations */
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int xfs_rmap_map_extent(struct xfs_trans *tp, struct xfs_inode *ip,
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int whichfork, struct xfs_bmbt_irec *imap);
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int xfs_rmap_unmap_extent(struct xfs_trans *tp, struct xfs_inode *ip,
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int whichfork, struct xfs_bmbt_irec *imap);
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int xfs_rmap_convert_extent(struct xfs_mount *mp, struct xfs_trans *tp,
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struct xfs_inode *ip, int whichfork,
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struct xfs_bmbt_irec *imap);
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int xfs_rmap_alloc_extent(struct xfs_trans *tp, xfs_agnumber_t agno,
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xfs_agblock_t bno, xfs_extlen_t len, uint64_t owner);
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int xfs_rmap_free_extent(struct xfs_trans *tp, xfs_agnumber_t agno,
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xfs_agblock_t bno, xfs_extlen_t len, uint64_t owner);
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void xfs_rmap_finish_one_cleanup(struct xfs_trans *tp,
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struct xfs_btree_cur *rcur, int error);
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int xfs_rmap_finish_one(struct xfs_trans *tp, enum xfs_rmap_intent_type type,
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uint64_t owner, int whichfork, xfs_fileoff_t startoff,
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xfs_fsblock_t startblock, xfs_filblks_t blockcount,
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xfs_exntst_t state, struct xfs_btree_cur **pcur);
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int xfs_rmap_find_left_neighbor(struct xfs_btree_cur *cur, xfs_agblock_t bno,
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uint64_t owner, uint64_t offset, unsigned int flags,
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struct xfs_rmap_irec *irec, int *stat);
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int xfs_rmap_lookup_le_range(struct xfs_btree_cur *cur, xfs_agblock_t bno,
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uint64_t owner, uint64_t offset, unsigned int flags,
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struct xfs_rmap_irec *irec, int *stat);
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int xfs_rmap_compare(const struct xfs_rmap_irec *a,
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const struct xfs_rmap_irec *b);
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union xfs_btree_rec;
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int xfs_rmap_btrec_to_irec(union xfs_btree_rec *rec,
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struct xfs_rmap_irec *irec);
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int xfs_rmap_has_record(struct xfs_btree_cur *cur, xfs_agblock_t bno,
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xfs_extlen_t len, bool *exists);
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int xfs_rmap_record_exists(struct xfs_btree_cur *cur, xfs_agblock_t bno,
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xfs_extlen_t len, struct xfs_owner_info *oinfo,
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bool *has_rmap);
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int xfs_rmap_has_other_keys(struct xfs_btree_cur *cur, xfs_agblock_t bno,
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xfs_extlen_t len, struct xfs_owner_info *oinfo,
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bool *has_rmap);
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int xfs_rmap_map_raw(struct xfs_btree_cur *cur, struct xfs_rmap_irec *rmap);
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#endif /* __XFS_RMAP_H__ */
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