bcachefs: BTREE_ITER_FILTER_SNAPSHOTS

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For snapshots, we need to implement btree lookups that return the first
key that's an ancestor of the snapshot ID the lookup is being done in -
and filter out keys in unrelated snapshots. This patch adds the btree
iterator flag BTREE_ITER_FILTER_SNAPSHOTS which does that filtering.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>

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Kent Overstreet 2021-03-04 22:29:25 -05:00 • committed by Kent Overstreet

parent 284ae18c1d

commit c075ff700f

4 changed files with 166 additions and 15 deletions

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168

fs/bcachefs/btree_iter.c

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9

fs/bcachefs/btree_iter.h

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3

fs/bcachefs/btree_key_cache.c

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1

fs/bcachefs/btree_types.h

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