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authorBhasker Hariharan <bhaskerh@google.com>2020-04-03 18:34:48 -0700
committergVisor bot <gvisor-bot@google.com>2020-04-03 18:35:55 -0700
commitfc99a7ebf0c24b6f7b3cfd6351436373ed54548b (patch)
treeb1403f2ce9f2fd8181fe1bd531250b83544d1d7a /pkg/sentry/fs/proc/stat.go
parent5818663ebe26857845685702d99db41c7aa2cf3d (diff)
Refactor software GSO code.
Software GSO implementation currently has a complicated code path with implicit assumptions that all packets to WritePackets carry same Data and it does this to avoid allocations on the path etc. But this makes it hard to reuse the WritePackets API. This change breaks all such assumptions by introducing a new Vectorised View API ReadToVV which can be used to cleanly split a VV into multiple independent VVs. Further this change also makes packet buffers linkable to form an intrusive list. This allows us to get rid of the array of packet buffers that are passed in the WritePackets API call and replace it with a list of packet buffers. While this code does introduce some more allocations in the benchmarks it doesn't cause any degradation. Updates #231 PiperOrigin-RevId: 304731742
Diffstat (limited to 'pkg/sentry/fs/proc/stat.go')
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