Botond Dénes 5e39cedbe3 evictable_reader: remove _reader_created flag ...

This flag is not really needed, because we can just attempt a resume on
first use which will fail with the default constructed inactive read
handle and the reader will be created via the recreate-after-evicted
path.
This allows the same path to be used for all reader creation cases,
simplifying the logic and more importantly making further patching
easier without the special case.
To make the recreate path (almost) as cheap for the first reader
creation as it was with the special path, `_trim_range_tombstones` and
`_validate_partition_key` is only set when really needed.

Tests: unit(dev)
Signed-off-by: Botond Dénes <bdenes@scylladb.com>
Message-Id: <20210514141511.127735-1-bdenes@scylladb.com>

2021-05-16 14:45:46 +03:00

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