xfs: compute per-AG extent reap limits dynamically

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Calculate the maximum number of extents that can be reaped in a single
transaction chain, and the number of buffers that can be invalidated in
a single transaction.  The rough calculation here is:

nr_extents = (logres - reservation used by any one step) /
		(space used by intents per extent +
		 space used per binval)

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>

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This commit is contained in:

Darrick J. Wong 2025-04-08 16:14:33 -07:00

parent ef930cc371

commit b2311ec677

3 changed files with 171 additions and 12 deletions

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140

fs/xfs/scrub/reap.c

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1

fs/xfs/scrub/trace.c

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42

fs/xfs/scrub/trace.h

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