xfs: use deferred frees to reap old btree blocks

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Use deferred frees (EFIs) to reap the blocks of a btree that we just
replaced.  This helps us to shrink the window in which those old blocks
could be lost due to a system crash, though we try to flush the EFIs
every few hundred blocks so that we don't also overflow the transaction
reservations during and after we commit the new btree.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>

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Darrick J. Wong 2023-08-10 07:48:02 -07:00

parent a55e073088

commit 5fee784ed0

1 changed files with 26 additions and 4 deletions

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fs/xfs/scrub/reap.c

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