Konstantin Belousov 165ba13fb8 linuxkpi: guarantee allocations of task and mm for interrupt threads ... Create and use zones for task and mm. Reserve items in zones based on the estimation of the max number of interrupts in the system. Use M_USE_RESERVE to allow to take reserved items when allocation occurs from the interrupt thread context. Of course, this would only work first time we allocate the task for interrupt thread. If interrupt is deallocated and allocated anew, creating a new thread, it might be that zone is depleted. It still should be good enough for practical uses. Reviewed by: hselasky Sponsored by: Mellanox Technologies/NVidia Networking MFC after: 1 week		2021-04-19 21:34:08 +03:00
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common	linuxkpi: guarantee allocations of task and mm for interrupt threads	2021-04-19 21:34:08 +03:00