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xfs: make the start pointer passed to btree update_lastrec functions const 

This btree function is called when updating a record in the rightmost
block of a btree so that we can update the AGF's longest free extent
length field.  Neither parameter is supposed to be updated, so mark them
both const.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Darrick J. Wong 2021-08-12 09:56:49 -07:00
parent deb06b9ab6
commit 60e265f7f8
2 changed files with 9 additions and 9 deletions
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10
fs/xfs/libxfs/xfs_alloc_btree.c
View File

@ -103,11 +103,11 @@ xfs_allocbt_free_block(
*/
STATIC void
xfs_allocbt_update_lastrec(
struct xfs_btree_cur *cur,
struct xfs_btree_block *block,
union xfs_btree_rec *rec,
int ptr,
int reason)
struct xfs_btree_cur *cur,
const struct xfs_btree_block *block,
const union xfs_btree_rec *rec,
int ptr,
int reason)
{
struct xfs_agf *agf = cur->bc_ag.agbp->b_addr;
struct xfs_perag *pag;

8
fs/xfs/libxfs/xfs_btree.h
View File

@ -117,8 +117,8 @@ struct xfs_btree_ops {
/* update last record information */
void (*update_lastrec)(struct xfs_btree_cur *cur,
struct xfs_btree_block *block,
union xfs_btree_rec *rec,
const struct xfs_btree_block *block,
const union xfs_btree_rec *rec,
int ptr, int reason);
/* records in block/level */
@ -423,7 +423,7 @@ void xfs_btree_log_recs(struct xfs_btree_cur *, struct xfs_buf *, int, int);
/*
* Helpers.
*/
static inline int xfs_btree_get_numrecs(struct xfs_btree_block *block)
static inline int xfs_btree_get_numrecs(const struct xfs_btree_block *block)
{
return be16_to_cpu(block->bb_numrecs);
}
@ -434,7 +434,7 @@ static inline void xfs_btree_set_numrecs(struct xfs_btree_block *block,
block->bb_numrecs = cpu_to_be16(numrecs);
}
static inline int xfs_btree_get_level(struct xfs_btree_block *block)
static inline int xfs_btree_get_level(const struct xfs_btree_block *block)
{
return be16_to_cpu(block->bb_level);
}