On Mon, 25 Apr 2016 17:20:10 -0400 Dan Streetman <ddstr...@ieee.org> wrote:
> Add a work_struct to struct zpool, and change zpool_destroy_pool to > defer calling the pool implementation destroy. > > The zsmalloc pool destroy function, which is one of the zpool > implementations, may sleep during destruction of the pool. However > zswap, which uses zpool, may call zpool_destroy_pool from atomic > context. So we need to defer the call to the zpool implementation > to destroy the pool. > > This is essentially the same as Yu Zhao's proposed patch to zsmalloc, > but moved to zpool. OK, but the refrain remains the same: what are the runtime effects of the change? Are real people in real worlds seeing scary kernel warnings? Deadlocks? This info is needed so that I and others can decide which kernel version(s) should be patched. Thanks.
