[PATCH v3 3/9] xfs: create a separate finobt verifier

Brian Foster
2019-02-04T14:52:34Z

The inobt verifier is reused for the inobt and finobt, which
prevents the ability to distinguish between magic values on a
per-tree basis. Create a separate finobt structure in preparation
for changes to enforce the appropriate magic value for the
associated tree. This patch has no functional change.

Signed-off-by: Brian Foster <bfoster@redhat.com>
---
fs/xfs/libxfs/xfs_ag.c | 2 +-
fs/xfs/libxfs/xfs_ialloc_btree.c | 9 ++++++++-
fs/xfs/libxfs/xfs_shared.h | 1 +
fs/xfs/scrub/agheader_repair.c | 2 +-
fs/xfs/xfs_log_recover.c | 6 ++++--
5 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/fs/xfs/libxfs/xfs_ag.c b/fs/xfs/libxfs/xfs_ag.c
index 999ad8d00d43..bde67ef3ff43 100644
--- a/fs/xfs/libxfs/xfs_ag.c
+++ b/fs/xfs/libxfs/xfs_ag.c
@@ -361,7 +361,7 @@ xfs_ag_init_headers(
{ /* FINO root block */
.daddr = XFS_AGB_TO_DADDR(mp, id->agno, XFS_FIBT_BLOCK(mp)),
.numblks = BTOBB(mp->m_sb.sb_blocksize),
- .ops = &xfs_inobt_buf_ops,
+ .ops = &xfs_finobt_buf_ops,
.work = &xfs_btroot_init,
.type = XFS_BTNUM_FINO,
.need_init = xfs_sb_version_hasfinobt(&mp->m_sb)
diff --git a/fs/xfs/libxfs/xfs_ialloc_btree.c b/fs/xfs/libxfs/xfs_ialloc_btree.c
index 9b25e7a0df47..798269eb4767 100644
--- a/fs/xfs/libxfs/xfs_ialloc_btree.c
+++ b/fs/xfs/libxfs/xfs_ialloc_btree.c
@@ -333,6 +333,13 @@ const struct xfs_buf_ops xfs_inobt_buf_ops = {
.verify_struct = xfs_inobt_verify,
};

+const struct xfs_buf_ops xfs_finobt_buf_ops = {
+ .name = "xfs_finobt",
+ .verify_read = xfs_inobt_read_verify,
+ .verify_write = xfs_inobt_write_verify,
+ .verify_struct = xfs_inobt_verify,
+};
+
STATIC int
xfs_inobt_keys_inorder(
struct xfs_btree_cur *cur,
@@ -389,7 +396,7 @@ static const struct xfs_btree_ops xfs_finobt_ops = {
.init_rec_from_cur = xfs_inobt_init_rec_from_cur,
.init_ptr_from_cur = xfs_finobt_init_ptr_from_cur,
.key_diff = xfs_inobt_key_diff,
- .buf_ops = &xfs_inobt_buf_ops,
+ .buf_ops = &xfs_finobt_buf_ops,
.diff_two_keys = xfs_inobt_diff_two_keys,
.keys_inorder = xfs_inobt_keys_inorder,
.recs_inorder = xfs_inobt_recs_inorder,
diff --git a/fs/xfs/libxfs/xfs_shared.h b/fs/xfs/libxfs/xfs_shared.h
index 1c5debe748f0..9855f4d2f98f 100644
--- a/fs/xfs/libxfs/xfs_shared.h
+++ b/fs/xfs/libxfs/xfs_shared.h
@@ -36,6 +36,7 @@ extern const struct xfs_buf_ops xfs_dquot_buf_ops;
extern const struct xfs_buf_ops xfs_symlink_buf_ops;
extern const struct xfs_buf_ops xfs_agi_buf_ops;
extern const struct xfs_buf_ops xfs_inobt_buf_ops;
+extern const struct xfs_buf_ops xfs_finobt_buf_ops;
extern const struct xfs_buf_ops xfs_inode_buf_ops;
extern const struct xfs_buf_ops xfs_inode_buf_ra_ops;
extern const struct xfs_buf_ops xfs_dquot_buf_ops;
diff --git a/fs/xfs/scrub/agheader_repair.c b/fs/xfs/scrub/agheader_repair.c
index 03d1e15cceba..673be3cf7b8d 100644
--- a/fs/xfs/scrub/agheader_repair.c
+++ b/fs/xfs/scrub/agheader_repair.c
@@ -879,7 +879,7 @@ xrep_agi(
},
[XREP_AGI_FINOBT] = {
.rmap_owner = XFS_RMAP_OWN_INOBT,
- .buf_ops = &xfs_inobt_buf_ops,
+ .buf_ops = &xfs_finobt_buf_ops,
.magic = XFS_FIBT_CRC_MAGIC,
},
[XREP_AGI_END] = {
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 9fe88d125f0a..228c754bb137 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -2445,11 +2445,13 @@ xlog_recover_validate_buf_type(
bp->b_ops = &xfs_allocbt_buf_ops;
break;
case XFS_IBT_CRC_MAGIC:
- case XFS_FIBT_CRC_MAGIC:
case XFS_IBT_MAGIC:
- case XFS_FIBT_MAGIC:
bp->b_ops = &xfs_inobt_buf_ops;
break;
+ case XFS_FIBT_CRC_MAGIC:
+ case XFS_FIBT_MAGIC:
+ bp->b_ops = &xfs_finobt_buf_ops;
+ break;
case XFS_BMAP_CRC_MAGIC:
case XFS_BMAP_MAGIC:
bp->b_ops = &xfs_bmbt_buf_ops;
--
2.17.2