Tomasz Grabiec 85b1a45252 row_cache: Fix abort on bad_alloc during cache update ...

Since 90d6c0b, cache will abort when trying to detach partition
entries while they're updated. This should never happen. It can happen
though, when the update fails on bad_alloc, because the cleanup guard
invalidates the cache before it releases partition snapshots (held by
"update" coroutine).

Fix by destroying the coroutine first.

Fixes #5327.

Tests:
  - row_cache_test (dev)

Message-Id: <1574360259-10132-1-git-send-email-tgrabiec@scylladb.com>
(cherry picked from commit e3d025d014)

2019-11-24 17:42:41 +02:00

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