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xfs: make the key parameters to all btree key comparison functions const

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The btree key comparison functions are not allowed to change the keys
that are passed in, so mark them const.  We'll need this for the next
patch, which adds const to the btree range query functions.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Darrick J. Wong 2021-08-10 17:02:15 -07:00
parent 7f89c83839
commit d29d557777
6 changed files with 50 additions and 50 deletions
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32
fs/xfs/libxfs/xfs_alloc_btree.c
View File

@ -229,23 +229,23 @@ xfs_allocbt_init_ptr_from_cur(
STATIC int64_t
xfs_bnobt_key_diff(
struct xfs_btree_cur *cur,
union xfs_btree_key *key)
struct xfs_btree_cur *cur,
const union xfs_btree_key *key)
{
xfs_alloc_rec_incore_t *rec = &cur->bc_rec.a;
xfs_alloc_key_t *kp = &key->alloc;
struct xfs_alloc_rec_incore *rec = &cur->bc_rec.a;
const struct xfs_alloc_rec *kp = &key->alloc;
return (int64_t)be32_to_cpu(kp->ar_startblock) - rec->ar_startblock;
}
STATIC int64_t
xfs_cntbt_key_diff(
struct xfs_btree_cur *cur,
union xfs_btree_key *key)
struct xfs_btree_cur *cur,
const union xfs_btree_key *key)
{
xfs_alloc_rec_incore_t *rec = &cur->bc_rec.a;
xfs_alloc_key_t *kp = &key->alloc;
int64_t diff;
struct xfs_alloc_rec_incore *rec = &cur->bc_rec.a;
const struct xfs_alloc_rec *kp = &key->alloc;
int64_t diff;
diff = (int64_t)be32_to_cpu(kp->ar_blockcount) - rec->ar_blockcount;
if (diff)
@ -256,9 +256,9 @@ xfs_cntbt_key_diff(
STATIC int64_t
xfs_bnobt_diff_two_keys(
struct xfs_btree_cur *cur,
union xfs_btree_key *k1,
union xfs_btree_key *k2)
struct xfs_btree_cur *cur,
const union xfs_btree_key *k1,
const union xfs_btree_key *k2)
{
return (int64_t)be32_to_cpu(k1->alloc.ar_startblock) -
be32_to_cpu(k2->alloc.ar_startblock);
@ -266,11 +266,11 @@ xfs_bnobt_diff_two_keys(
STATIC int64_t
xfs_cntbt_diff_two_keys(
struct xfs_btree_cur *cur,
union xfs_btree_key *k1,
union xfs_btree_key *k2)
struct xfs_btree_cur *cur,
const union xfs_btree_key *k1,
const union xfs_btree_key *k2)
{
int64_t diff;
int64_t diff;
diff = be32_to_cpu(k1->alloc.ar_blockcount) -
be32_to_cpu(k2->alloc.ar_blockcount);

14
fs/xfs/libxfs/xfs_bmap_btree.c
View File

@ -387,8 +387,8 @@ xfs_bmbt_init_ptr_from_cur(
STATIC int64_t
xfs_bmbt_key_diff(
struct xfs_btree_cur *cur,
union xfs_btree_key *key)
struct xfs_btree_cur *cur,
const union xfs_btree_key *key)
{
return (int64_t)be64_to_cpu(key->bmbt.br_startoff) -
cur->bc_rec.b.br_startoff;
@ -396,12 +396,12 @@ xfs_bmbt_key_diff(
STATIC int64_t
xfs_bmbt_diff_two_keys(
struct xfs_btree_cur *cur,
union xfs_btree_key *k1,
union xfs_btree_key *k2)
struct xfs_btree_cur *cur,
const union xfs_btree_key *k1,
const union xfs_btree_key *k2)
{
uint64_t a = be64_to_cpu(k1->bmbt.br_startoff);
uint64_t b = be64_to_cpu(k2->bmbt.br_startoff);
uint64_t a = be64_to_cpu(k1->bmbt.br_startoff);
uint64_t b = be64_to_cpu(k2->bmbt.br_startoff);
/*
* Note: This routine previously casted a and b to int64 and subtracted

6
fs/xfs/libxfs/xfs_btree.h
View File

@ -140,15 +140,15 @@ struct xfs_btree_ops {
/* difference between key value and cursor value */
int64_t (*key_diff)(struct xfs_btree_cur *cur,
union xfs_btree_key *key);
const union xfs_btree_key *key);
/*
* Difference between key2 and key1 -- positive if key1 > key2,
* negative if key1 < key2, and zero if equal.
*/
int64_t (*diff_two_keys)(struct xfs_btree_cur *cur,
union xfs_btree_key *key1,
union xfs_btree_key *key2);
const union xfs_btree_key *key1,
const union xfs_btree_key *key2);
const struct xfs_buf_ops *buf_ops;

10
fs/xfs/libxfs/xfs_ialloc_btree.c
View File

@ -253,8 +253,8 @@ xfs_finobt_init_ptr_from_cur(
STATIC int64_t
xfs_inobt_key_diff(
struct xfs_btree_cur *cur,
union xfs_btree_key *key)
struct xfs_btree_cur *cur,
const union xfs_btree_key *key)
{
return (int64_t)be32_to_cpu(key->inobt.ir_startino) -
cur->bc_rec.i.ir_startino;
@ -262,9 +262,9 @@ xfs_inobt_key_diff(
STATIC int64_t
xfs_inobt_diff_two_keys(
struct xfs_btree_cur *cur,
union xfs_btree_key *k1,
union xfs_btree_key *k2)
struct xfs_btree_cur *cur,
const union xfs_btree_key *k1,
const union xfs_btree_key *k2)
{
return (int64_t)be32_to_cpu(k1->inobt.ir_startino) -
be32_to_cpu(k2->inobt.ir_startino);

12
fs/xfs/libxfs/xfs_refcount_btree.c
View File

@ -177,20 +177,20 @@ xfs_refcountbt_init_ptr_from_cur(
STATIC int64_t
xfs_refcountbt_key_diff(
struct xfs_btree_cur *cur,
union xfs_btree_key *key)
struct xfs_btree_cur *cur,
const union xfs_btree_key *key)
{
struct xfs_refcount_irec *rec = &cur->bc_rec.rc;
struct xfs_refcount_key *kp = &key->refc;
const struct xfs_refcount_key *kp = &key->refc;
return (int64_t)be32_to_cpu(kp->rc_startblock) - rec->rc_startblock;
}
STATIC int64_t
xfs_refcountbt_diff_two_keys(
struct xfs_btree_cur *cur,
union xfs_btree_key *k1,
union xfs_btree_key *k2)
struct xfs_btree_cur *cur,
const union xfs_btree_key *k1,
const union xfs_btree_key *k2)
{
return (int64_t)be32_to_cpu(k1->refc.rc_startblock) -
be32_to_cpu(k2->refc.rc_startblock);

26
fs/xfs/libxfs/xfs_rmap_btree.c
View File

@ -219,13 +219,13 @@ xfs_rmapbt_init_ptr_from_cur(
STATIC int64_t
xfs_rmapbt_key_diff(
struct xfs_btree_cur *cur,
union xfs_btree_key *key)
struct xfs_btree_cur *cur,
const union xfs_btree_key *key)
{
struct xfs_rmap_irec *rec = &cur->bc_rec.r;
struct xfs_rmap_key *kp = &key->rmap;
__u64 x, y;
int64_t d;
struct xfs_rmap_irec *rec = &cur->bc_rec.r;
const struct xfs_rmap_key *kp = &key->rmap;
__u64 x, y;
int64_t d;
d = (int64_t)be32_to_cpu(kp->rm_startblock) - rec->rm_startblock;
if (d)
@ -249,14 +249,14 @@ xfs_rmapbt_key_diff(
STATIC int64_t
xfs_rmapbt_diff_two_keys(
struct xfs_btree_cur *cur,
union xfs_btree_key *k1,
union xfs_btree_key *k2)
struct xfs_btree_cur *cur,
const union xfs_btree_key *k1,
const union xfs_btree_key *k2)
{
struct xfs_rmap_key *kp1 = &k1->rmap;
struct xfs_rmap_key *kp2 = &k2->rmap;
int64_t d;
__u64 x, y;
const struct xfs_rmap_key *kp1 = &k1->rmap;
const struct xfs_rmap_key *kp2 = &k2->rmap;
int64_t d;
__u64 x, y;
d = (int64_t)be32_to_cpu(kp1->rm_startblock) -
be32_to_cpu(kp2->rm_startblock);