mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-19 09:04:57 +00:00
ed7ef8e55c
The xfs_btree_cur.bc_private.a.dfops field is only ever initialized by the refcountbt cursor init function. The only caller of that function with a non-NULL dfops is from deferred completion context, which already has attached to ->t_dfops. In addition to that, the only actual reference of a.dfops is the cursor duplication function, which means the field is effectively unused. Remove the dfops field from the bc_private.a union. Any future users can acquire the dfops from the transaction. This patch does not change behavior. Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
60 lines
1.8 KiB
C
60 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2016 Oracle. All Rights Reserved.
|
|
* Author: Darrick J. Wong <darrick.wong@oracle.com>
|
|
*/
|
|
#ifndef __XFS_REFCOUNT_BTREE_H__
|
|
#define __XFS_REFCOUNT_BTREE_H__
|
|
|
|
/*
|
|
* Reference Count Btree on-disk structures
|
|
*/
|
|
|
|
struct xfs_buf;
|
|
struct xfs_btree_cur;
|
|
struct xfs_mount;
|
|
|
|
/*
|
|
* Btree block header size
|
|
*/
|
|
#define XFS_REFCOUNT_BLOCK_LEN XFS_BTREE_SBLOCK_CRC_LEN
|
|
|
|
/*
|
|
* Record, key, and pointer address macros for btree blocks.
|
|
*
|
|
* (note that some of these may appear unused, but they are used in userspace)
|
|
*/
|
|
#define XFS_REFCOUNT_REC_ADDR(block, index) \
|
|
((struct xfs_refcount_rec *) \
|
|
((char *)(block) + \
|
|
XFS_REFCOUNT_BLOCK_LEN + \
|
|
(((index) - 1) * sizeof(struct xfs_refcount_rec))))
|
|
|
|
#define XFS_REFCOUNT_KEY_ADDR(block, index) \
|
|
((struct xfs_refcount_key *) \
|
|
((char *)(block) + \
|
|
XFS_REFCOUNT_BLOCK_LEN + \
|
|
((index) - 1) * sizeof(struct xfs_refcount_key)))
|
|
|
|
#define XFS_REFCOUNT_PTR_ADDR(block, index, maxrecs) \
|
|
((xfs_refcount_ptr_t *) \
|
|
((char *)(block) + \
|
|
XFS_REFCOUNT_BLOCK_LEN + \
|
|
(maxrecs) * sizeof(struct xfs_refcount_key) + \
|
|
((index) - 1) * sizeof(xfs_refcount_ptr_t)))
|
|
|
|
extern struct xfs_btree_cur *xfs_refcountbt_init_cursor(struct xfs_mount *mp,
|
|
struct xfs_trans *tp, struct xfs_buf *agbp,
|
|
xfs_agnumber_t agno);
|
|
extern int xfs_refcountbt_maxrecs(int blocklen, bool leaf);
|
|
extern void xfs_refcountbt_compute_maxlevels(struct xfs_mount *mp);
|
|
|
|
extern xfs_extlen_t xfs_refcountbt_calc_size(struct xfs_mount *mp,
|
|
unsigned long long len);
|
|
extern xfs_extlen_t xfs_refcountbt_max_size(struct xfs_mount *mp,
|
|
xfs_agblock_t agblocks);
|
|
|
|
extern int xfs_refcountbt_calc_reserves(struct xfs_mount *mp,
|
|
xfs_agnumber_t agno, xfs_extlen_t *ask, xfs_extlen_t *used);
|
|
|
|
#endif /* __XFS_REFCOUNT_BTREE_H__ */
|