bcachefs: Re-implement extent merging in transaction commit path

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We haven't had extent merging in quite some time. It used to be done by
the btree code when sorting btree nodes, but that was eliminated as part
of the work to separate extent handling from core btree code.

This patch re-implements extent merging in the transaction commit path.
We don't currently have the ability to merge reflink pointers, we need
to do some work on the triggers code to be able to do that without
ending up with incorrect refcounts.

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

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Kent Overstreet 2021-04-28 23:52:19 -04:00 • committed by Kent Overstreet

parent 81d22e5d83

commit 5db95e50e1

3 changed files with 46 additions and 6 deletions

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6

fs/bcachefs/bkey_methods.c

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5

fs/bcachefs/bkey_methods.h

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41

fs/bcachefs/btree_update_leaf.c

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