bcachefs: Kill equiv_seen arg to delete_dead_snapshots_process_key()

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When deleting dead snapshots, we move keys from redundant interior
snapshot nodes to child nodes - unless there's already a key, in which
case the ancestor key is deleted.

Previously, we tracked via equiv_seen whether the child snapshot had a
key, but this was tricky w.r.t. transaction restarts, and not
transactionally safe w.r.t. updates in the child snapshot.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

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This commit is contained in:

Kent Overstreet 2024-12-12 02:41:37 -05:00

parent 92e31d4251

commit 85c060f62d

1 changed files with 17 additions and 34 deletions

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fs/bcachefs/snapshot.c

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