btrfs: discard: speed up async discard up to iops_limit

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Instead of using iops_limit only for cutting off extremes, calculate the
discard delay directly from it, so it closely follows iops_limit and
doesn't under-discard even though quotas are not saturated.

The iops limit could be hit more often in some cases and could increase
the discard rate.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Pavel Begunkov 2020-11-04 09:45:51 +00:00 • committed by David Sterba

parent 480a8ec83b

commit e50404a8a6

1 changed files with 5 additions and 5 deletions

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fs/btrfs/discard.c

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