Pre5 Extraction Baseline

Repository Baseline

Outer starting commit: 6421919003ecfab5317dfa70959ab81cd9bbc990
Starting repo-pre-5 tree: f99462eee8898af209332ef202f8da07f2dd567e
Starting repo-pre-5/src/super.c blob: c150d795df42ae4136fbd6e74c3b88903341b05a
Execution target: the existing repo-pre-5 directory
Source allowlist for the later extraction commits: repo-pre-5/src/super.c

The fixed tree and blob identifiers above were read from Git before this document was created. Pre5 works directly on repo-pre-5; it does not create another snapshot.

Stage Scope

Pre5 is an L2-S private cleanup responsibility extraction stage. It has two source tasks:

Extract the existing extra-device cleanup from erofs_sb_free() into static void erofs_free_dev_context(struct erofs_mount *em).
Extract the existing metabox and packed-inode cleanup from erofs_sb_free() into static void erofs_drop_internal_inodes(struct erofs_mount *em).

Both tasks are statement movement only. They must preserve FreeBSD GEOM, vnode, allocation, and ownership semantics. They must not change behavior, ABI, features, error handling, locking, logging, conditions, release calls, or object ownership.

Protected Paths

The following paths must remain unchanged during Pre5 execution:

repo-pre-3/
repo-pre-2/
repo-pre-1/
src-linux/
planning/reject/
existing reports and other planning stages

Except for this baseline document, no path outside repo-pre-5/src/super.c belongs in the Pre5 source commits.

Cleanup-Order Invariant

The effective cleanup order must remain exactly:

xattr prefixes
-> metabox
-> packed inode
-> extra devices in reverse order
-> primary device
-> mount state

The extraction must not add pointer clearing, conditions, assertions, logs, locks, return values, error handling, or header declarations.

Commit and Push Discipline

Each Pre5 commit must contain one planned logical task and must be pushed immediately to xdm main. The commits must not be squashed. Execution must stop if a push fails or if local, tracking, and remote commit identities diverge.

Validation Status at Baseline

Validation item	Status
Static Git baseline capture	RECORDED
Source extraction tasks	NOT RUN
Build with `WITH_ZSTDIO=0`	NOT RUN
Build with `WITH_ZSTDIO=1`	NOT RUN
QEMU smoke testing	NOT RUN
Manual or automated tests	NOT RUN

No build, QEMU run, feature validation, regression test, or runtime result is claimed by this document.

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