Messages in this thread |  | | | From | Peter Zijlstra <> | | Date | Sat, 12 Aug 2006 16:14:15 +0200 | | Subject | [RFC][PATCH 0/4] VM deadlock prevention -v4 |
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Hi,
here the latest effort, it includes a whole new trivial allocator with a horrid name and an almost full rewrite of the deadlock prevention core. This version does not do anything per device and hence does not depend on the new netdev_alloc_skb() API.
The reason to add a second allocator to the receive side is twofold: 1) it allows easy detection of the memory pressure / OOM situation; 2) it allows the receive path to be unbounded and go at full speed when resources permit.
The choice of using the global memalloc reserve as a mempool makes that the new allocator has to release pages as soon as possible; if we were to hoard pages in the allocator the memalloc reserve would not get replenished readily.
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