staging: zsmalloc: prevent mappping in interrupt context
Because we use per-cpu mapping areas shared among the pools/users, we can't allow mapping in interrupt context because it can corrupt another users mappings. Signed-off-by: NSeth Jennings <sjenning@linux.vnet.ibm.com> Acked-by: NMinchan Kim <minchan@kernel.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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