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

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The @start pointer passed to each per-AG btree type's ->alloc_block
function isn't supposed to be modified, since it's a hint about the
location of the btree block being split that is to be fed to the
allocator, so mark the parameter 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 09:53:27 -07:00
parent b5a6e5fe0e
commit deb06b9ab6
7 changed files with 34 additions and 34 deletions
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26
fs/xfs/libxfs/xfs_ialloc_btree.c
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@@ -88,11 +88,11 @@ xfs_inobt_mod_blockcount(
STATIC int
__xfs_inobt_alloc_block(
struct xfs_btree_cur *cur,
union xfs_btree_ptr *start,
union xfs_btree_ptr *new,
int *stat,
enum xfs_ag_resv_type resv)
struct xfs_btree_cur *cur,
const union xfs_btree_ptr *start,
union xfs_btree_ptr *new,
int *stat,
enum xfs_ag_resv_type resv)
{
xfs_alloc_arg_t args; /* block allocation args */
int error; /* error return value */
@@ -127,20 +127,20 @@ __xfs_inobt_alloc_block(
STATIC int
xfs_inobt_alloc_block(
struct xfs_btree_cur *cur,
union xfs_btree_ptr *start,
union xfs_btree_ptr *new,
int *stat)
struct xfs_btree_cur *cur,
const union xfs_btree_ptr *start,
union xfs_btree_ptr *new,
int *stat)
{
return __xfs_inobt_alloc_block(cur, start, new, stat, XFS_AG_RESV_NONE);
}
STATIC int
xfs_finobt_alloc_block(
struct xfs_btree_cur *cur,
union xfs_btree_ptr *start,
union xfs_btree_ptr *new,
int *stat)
struct xfs_btree_cur *cur,
const union xfs_btree_ptr *start,
union xfs_btree_ptr *new,
int *stat)
{
if (cur->bc_mp->m_finobt_nores)
return xfs_inobt_alloc_block(cur, start, new, stat);