xfs: plumb in needed functions for range querying of the freespace btrees
Plumb in the pieces (init_high_key, diff_two_keys) necessary to call query_range on the free space btrees. Remove the debugging asserts so that we can make queries starting from block 0. While we're at it, merge the redundant "if (btnum ==" hunks. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
This commit is contained in:
Darrick J. Wong
Родитель
80c9f490f3
Коммит
08438b1e38
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@ -205,19 +205,37 @@ xfs_allocbt_init_key_from_rec(
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union xfs_btree_key *key,
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union xfs_btree_rec *rec)
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{
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ASSERT(rec->alloc.ar_startblock != 0);
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key->alloc.ar_startblock = rec->alloc.ar_startblock;
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key->alloc.ar_blockcount = rec->alloc.ar_blockcount;
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}
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STATIC void
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xfs_bnobt_init_high_key_from_rec(
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union xfs_btree_key *key,
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union xfs_btree_rec *rec)
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{
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__u32 x;
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x = be32_to_cpu(rec->alloc.ar_startblock);
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x += be32_to_cpu(rec->alloc.ar_blockcount) - 1;
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key->alloc.ar_startblock = cpu_to_be32(x);
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key->alloc.ar_blockcount = 0;
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}
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STATIC void
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xfs_cntbt_init_high_key_from_rec(
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union xfs_btree_key *key,
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union xfs_btree_rec *rec)
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{
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key->alloc.ar_blockcount = rec->alloc.ar_blockcount;
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key->alloc.ar_startblock = 0;
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}
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STATIC void
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xfs_allocbt_init_rec_from_cur(
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struct xfs_btree_cur *cur,
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union xfs_btree_rec *rec)
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{
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ASSERT(cur->bc_rec.a.ar_startblock != 0);
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rec->alloc.ar_startblock = cpu_to_be32(cur->bc_rec.a.ar_startblock);
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rec->alloc.ar_blockcount = cpu_to_be32(cur->bc_rec.a.ar_blockcount);
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}
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@ -236,7 +254,18 @@ xfs_allocbt_init_ptr_from_cur(
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}
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STATIC __int64_t
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xfs_allocbt_key_diff(
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xfs_bnobt_key_diff(
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struct xfs_btree_cur *cur,
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union xfs_btree_key *key)
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{
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xfs_alloc_rec_incore_t *rec = &cur->bc_rec.a;
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xfs_alloc_key_t *kp = &key->alloc;
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return (__int64_t)be32_to_cpu(kp->ar_startblock) - rec->ar_startblock;
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}
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STATIC __int64_t
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xfs_cntbt_key_diff(
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struct xfs_btree_cur *cur,
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union xfs_btree_key *key)
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{
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@ -244,11 +273,6 @@ xfs_allocbt_key_diff(
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xfs_alloc_key_t *kp = &key->alloc;
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__int64_t diff;
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if (cur->bc_btnum == XFS_BTNUM_BNO) {
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return (__int64_t)be32_to_cpu(kp->ar_startblock) -
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rec->ar_startblock;
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}
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diff = (__int64_t)be32_to_cpu(kp->ar_blockcount) - rec->ar_blockcount;
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if (diff)
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return diff;
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@ -256,6 +280,33 @@ xfs_allocbt_key_diff(
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return (__int64_t)be32_to_cpu(kp->ar_startblock) - rec->ar_startblock;
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}
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STATIC __int64_t
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xfs_bnobt_diff_two_keys(
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struct xfs_btree_cur *cur,
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union xfs_btree_key *k1,
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union xfs_btree_key *k2)
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{
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return (__int64_t)be32_to_cpu(k1->alloc.ar_startblock) -
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be32_to_cpu(k2->alloc.ar_startblock);
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}
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STATIC __int64_t
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xfs_cntbt_diff_two_keys(
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struct xfs_btree_cur *cur,
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union xfs_btree_key *k1,
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union xfs_btree_key *k2)
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{
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__int64_t diff;
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diff = be32_to_cpu(k1->alloc.ar_blockcount) -
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be32_to_cpu(k2->alloc.ar_blockcount);
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if (diff)
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return diff;
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return be32_to_cpu(k1->alloc.ar_startblock) -
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be32_to_cpu(k2->alloc.ar_startblock);
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}
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static bool
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xfs_allocbt_verify(
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struct xfs_buf *bp)
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@ -346,44 +397,54 @@ const struct xfs_buf_ops xfs_allocbt_buf_ops = {
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#if defined(DEBUG) || defined(XFS_WARN)
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STATIC int
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xfs_allocbt_keys_inorder(
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xfs_bnobt_keys_inorder(
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struct xfs_btree_cur *cur,
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union xfs_btree_key *k1,
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union xfs_btree_key *k2)
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{
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if (cur->bc_btnum == XFS_BTNUM_BNO) {
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return be32_to_cpu(k1->alloc.ar_startblock) <
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be32_to_cpu(k2->alloc.ar_startblock);
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} else {
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}
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STATIC int
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xfs_bnobt_recs_inorder(
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struct xfs_btree_cur *cur,
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union xfs_btree_rec *r1,
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union xfs_btree_rec *r2)
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{
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return be32_to_cpu(r1->alloc.ar_startblock) +
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be32_to_cpu(r1->alloc.ar_blockcount) <=
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be32_to_cpu(r2->alloc.ar_startblock);
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}
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STATIC int
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xfs_cntbt_keys_inorder(
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struct xfs_btree_cur *cur,
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union xfs_btree_key *k1,
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union xfs_btree_key *k2)
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{
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return be32_to_cpu(k1->alloc.ar_blockcount) <
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be32_to_cpu(k2->alloc.ar_blockcount) ||
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(k1->alloc.ar_blockcount == k2->alloc.ar_blockcount &&
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be32_to_cpu(k1->alloc.ar_startblock) <
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be32_to_cpu(k2->alloc.ar_startblock));
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}
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}
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STATIC int
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xfs_allocbt_recs_inorder(
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xfs_cntbt_recs_inorder(
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struct xfs_btree_cur *cur,
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union xfs_btree_rec *r1,
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union xfs_btree_rec *r2)
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{
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if (cur->bc_btnum == XFS_BTNUM_BNO) {
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return be32_to_cpu(r1->alloc.ar_startblock) +
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be32_to_cpu(r1->alloc.ar_blockcount) <=
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be32_to_cpu(r2->alloc.ar_startblock);
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} else {
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return be32_to_cpu(r1->alloc.ar_blockcount) <
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be32_to_cpu(r2->alloc.ar_blockcount) ||
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(r1->alloc.ar_blockcount == r2->alloc.ar_blockcount &&
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be32_to_cpu(r1->alloc.ar_startblock) <
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be32_to_cpu(r2->alloc.ar_startblock));
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}
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}
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#endif /* DEBUG */
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static const struct xfs_btree_ops xfs_allocbt_ops = {
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static const struct xfs_btree_ops xfs_bnobt_ops = {
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.rec_len = sizeof(xfs_alloc_rec_t),
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.key_len = sizeof(xfs_alloc_key_t),
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@ -395,13 +456,39 @@ static const struct xfs_btree_ops xfs_allocbt_ops = {
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.get_minrecs = xfs_allocbt_get_minrecs,
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.get_maxrecs = xfs_allocbt_get_maxrecs,
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.init_key_from_rec = xfs_allocbt_init_key_from_rec,
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.init_high_key_from_rec = xfs_bnobt_init_high_key_from_rec,
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.init_rec_from_cur = xfs_allocbt_init_rec_from_cur,
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.init_ptr_from_cur = xfs_allocbt_init_ptr_from_cur,
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.key_diff = xfs_allocbt_key_diff,
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.key_diff = xfs_bnobt_key_diff,
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.buf_ops = &xfs_allocbt_buf_ops,
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.diff_two_keys = xfs_bnobt_diff_two_keys,
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#if defined(DEBUG) || defined(XFS_WARN)
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.keys_inorder = xfs_allocbt_keys_inorder,
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.recs_inorder = xfs_allocbt_recs_inorder,
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.keys_inorder = xfs_bnobt_keys_inorder,
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.recs_inorder = xfs_bnobt_recs_inorder,
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#endif
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};
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static const struct xfs_btree_ops xfs_cntbt_ops = {
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.rec_len = sizeof(xfs_alloc_rec_t),
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.key_len = sizeof(xfs_alloc_key_t),
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.dup_cursor = xfs_allocbt_dup_cursor,
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.set_root = xfs_allocbt_set_root,
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.alloc_block = xfs_allocbt_alloc_block,
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.free_block = xfs_allocbt_free_block,
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.update_lastrec = xfs_allocbt_update_lastrec,
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.get_minrecs = xfs_allocbt_get_minrecs,
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.get_maxrecs = xfs_allocbt_get_maxrecs,
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.init_key_from_rec = xfs_allocbt_init_key_from_rec,
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.init_high_key_from_rec = xfs_cntbt_init_high_key_from_rec,
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.init_rec_from_cur = xfs_allocbt_init_rec_from_cur,
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.init_ptr_from_cur = xfs_allocbt_init_ptr_from_cur,
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.key_diff = xfs_cntbt_key_diff,
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.buf_ops = &xfs_allocbt_buf_ops,
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.diff_two_keys = xfs_cntbt_diff_two_keys,
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#if defined(DEBUG) || defined(XFS_WARN)
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.keys_inorder = xfs_cntbt_keys_inorder,
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.recs_inorder = xfs_cntbt_recs_inorder,
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#endif
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};
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@ -427,16 +514,15 @@ xfs_allocbt_init_cursor(
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cur->bc_mp = mp;
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cur->bc_btnum = btnum;
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cur->bc_blocklog = mp->m_sb.sb_blocklog;
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cur->bc_ops = &xfs_allocbt_ops;
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if (btnum == XFS_BTNUM_BNO)
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cur->bc_statoff = XFS_STATS_CALC_INDEX(xs_abtb_2);
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else
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cur->bc_statoff = XFS_STATS_CALC_INDEX(xs_abtc_2);
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if (btnum == XFS_BTNUM_CNT) {
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cur->bc_statoff = XFS_STATS_CALC_INDEX(xs_abtc_2);
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cur->bc_ops = &xfs_cntbt_ops;
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cur->bc_nlevels = be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]);
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cur->bc_flags = XFS_BTREE_LASTREC_UPDATE;
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} else {
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cur->bc_statoff = XFS_STATS_CALC_INDEX(xs_abtb_2);
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cur->bc_ops = &xfs_bnobt_ops;
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cur->bc_nlevels = be32_to_cpu(agf->agf_levels[XFS_BTNUM_BNO]);
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}
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