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xfs: split up allocation btree verifier 

Similar to the inode btree verifier, the same allocation btree
verifier structure is shared between the by-bno (bnobt) and by-size
(cntbt) btrees. This prevents the ability to distinguish magic
values between them. Separate the verifier into two, one for each
tree, and assign them appropriately. No functional changes.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Brian Foster 2019-02-07 10:45:47 -08:00 committed by Darrick J. Wong
parent 8473fee340
commit 27df4f5045
5 changed files with 20 additions and 11 deletions
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4
fs/xfs/libxfs/xfs_ag.c
View File

@ -339,14 +339,14 @@ xfs_ag_init_headers(
{ /* BNO root block */
.daddr = XFS_AGB_TO_DADDR(mp, id->agno, XFS_BNO_BLOCK(mp)),
.numblks = BTOBB(mp->m_sb.sb_blocksize),
.ops = &xfs_allocbt_buf_ops,
.ops = &xfs_bnobt_buf_ops,
.work = &xfs_bnoroot_init,
.need_init = true
},
{ /* CNT root block */
.daddr = XFS_AGB_TO_DADDR(mp, id->agno, XFS_CNT_BLOCK(mp)),
.numblks = BTOBB(mp->m_sb.sb_blocksize),
.ops = &xfs_allocbt_buf_ops,
.ops = &xfs_cntbt_buf_ops,
.work = &xfs_cntroot_init,
.need_init = true
},

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

@ -377,13 +377,19 @@ xfs_allocbt_write_verify(
}
const struct xfs_buf_ops xfs_allocbt_buf_ops = {
.name = "xfs_allocbt",
const struct xfs_buf_ops xfs_bnobt_buf_ops = {
.name = "xfs_bnobt",
.verify_read = xfs_allocbt_read_verify,
.verify_write = xfs_allocbt_write_verify,
.verify_struct = xfs_allocbt_verify,
};
const struct xfs_buf_ops xfs_cntbt_buf_ops = {
.name = "xfs_cntbt",
.verify_read = xfs_allocbt_read_verify,
.verify_write = xfs_allocbt_write_verify,
.verify_struct = xfs_allocbt_verify,
};
STATIC int
xfs_bnobt_keys_inorder(
@ -448,7 +454,7 @@ static const struct xfs_btree_ops xfs_bnobt_ops = {
.init_rec_from_cur = xfs_allocbt_init_rec_from_cur,
.init_ptr_from_cur = xfs_allocbt_init_ptr_from_cur,
.key_diff = xfs_bnobt_key_diff,
.buf_ops = &xfs_allocbt_buf_ops,
.buf_ops = &xfs_bnobt_buf_ops,
.diff_two_keys = xfs_bnobt_diff_two_keys,
.keys_inorder = xfs_bnobt_keys_inorder,
.recs_inorder = xfs_bnobt_recs_inorder,
@ -470,7 +476,7 @@ static const struct xfs_btree_ops xfs_cntbt_ops = {
.init_rec_from_cur = xfs_allocbt_init_rec_from_cur,
.init_ptr_from_cur = xfs_allocbt_init_ptr_from_cur,
.key_diff = xfs_cntbt_key_diff,
.buf_ops = &xfs_allocbt_buf_ops,
.buf_ops = &xfs_cntbt_buf_ops,
.diff_two_keys = xfs_cntbt_diff_two_keys,
.keys_inorder = xfs_cntbt_keys_inorder,
.recs_inorder = xfs_cntbt_recs_inorder,

3
fs/xfs/libxfs/xfs_shared.h
View File

@ -25,7 +25,8 @@ extern const struct xfs_buf_ops xfs_agf_buf_ops;
extern const struct xfs_buf_ops xfs_agi_buf_ops;
extern const struct xfs_buf_ops xfs_agf_buf_ops;
extern const struct xfs_buf_ops xfs_agfl_buf_ops;
extern const struct xfs_buf_ops xfs_allocbt_buf_ops;
extern const struct xfs_buf_ops xfs_bnobt_buf_ops;
extern const struct xfs_buf_ops xfs_cntbt_buf_ops;
extern const struct xfs_buf_ops xfs_rmapbt_buf_ops;
extern const struct xfs_buf_ops xfs_refcountbt_buf_ops;
extern const struct xfs_buf_ops xfs_attr3_leaf_buf_ops;

4
fs/xfs/scrub/agheader_repair.c
View File

@ -341,12 +341,12 @@ xrep_agf(
struct xrep_find_ag_btree fab[XREP_AGF_MAX] = {
[XREP_AGF_BNOBT] = {
.rmap_owner = XFS_RMAP_OWN_AG,
.buf_ops = &xfs_allocbt_buf_ops,
.buf_ops = &xfs_bnobt_buf_ops,
.magic = XFS_ABTB_CRC_MAGIC,
},
[XREP_AGF_CNTBT] = {
.rmap_owner = XFS_RMAP_OWN_AG,
.buf_ops = &xfs_allocbt_buf_ops,
.buf_ops = &xfs_cntbt_buf_ops,
.magic = XFS_ABTC_CRC_MAGIC,
},
[XREP_AGF_RMAPBT] = {

6
fs/xfs/xfs_log_recover.c
View File

@ -2439,10 +2439,12 @@ xlog_recover_validate_buf_type(
case XFS_BLFT_BTREE_BUF:
switch (magic32) {
case XFS_ABTB_CRC_MAGIC:
case XFS_ABTC_CRC_MAGIC:
case XFS_ABTB_MAGIC:
bp->b_ops = &xfs_bnobt_buf_ops;
break;
case XFS_ABTC_CRC_MAGIC:
case XFS_ABTC_MAGIC:
bp->b_ops = &xfs_allocbt_buf_ops;
bp->b_ops = &xfs_cntbt_buf_ops;
break;
case XFS_IBT_CRC_MAGIC:
case XFS_IBT_MAGIC: