Zach BrownandZach Brown 27bc0ef095 scoutfs: fix item cache page trim ...

The tests for the various page range intersections were out of order.
The edge overlap case could trigger before the bisection case and we'd
fail to remove the initial items in the page.  That would leave items
before the start key which would later be used as a midpoint for a
split, causing all kinds of chaos.

Rework the cases so that the overlap cases are last.  The unique bisect
case will be caught before we can mistake it for an edge overlap case.
And minimize the number of comparisons we calculate by storing the
handful that all the cases need.

Signed-off-by: Zach Brown <zab@versity.com>

2020-10-26 15:19:03 -07:00

kmod

scoutfs: fix item cache page trim

2020-10-26 15:19:03 -07:00

S

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