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Baby steps. This permits building without much of gvisor, but not all of it.
Updates #17283
Change-Id: I8433146e259918cc901fe86b4ea29be22075b32c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
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This only saves ~32KB in the minimal linux/amd64 binary, but it's a
step towards permitting not depending on gvisor for small builds.
Updates #17283
Change-Id: Iae8da5e9465127de354dbcaf25e794a6832d891b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
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Fixes #14492
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Change-Id: I6dc1068d34bbfa7477e7b7a56a4325b3868c92e1
Signed-off-by: Marc Paquette <marcphilippaquette@gmail.com>
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In df6014f1d7bf437adf239b75a62fd4c2f389ea2a we removed build tag
gating preventing importation, which tripped a NetworkExtension limit
test in corp. This was a reversal of
25f0a3fc8f6f9cf681bb5afda8e1762816c67a8b which actually made the
situation worse, hence the simplification.
This commit goes back to the strategy in
25f0a3fc8f6f9cf681bb5afda8e1762816c67a8b, and gets us back under the
limit in my local testing. Admittedly, we don't fully understand
the effects of importing or excluding importation of this package,
and have seen mixed results, but this commit allows us to move forward
again.
Updates tailscale/corp#22125
Signed-off-by: Jordan Whited <jordan@tailscale.com>
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Linux (#13172)
In 2f27319baf71681e221904d3a3ffe1badedc8e2e we disabled GRO due to a
data race around concurrent calls to tstun.Wrapper.Write(). This commit
refactors GRO to be thread-safe, and re-enables it on Linux.
This refactor now carries a GRO type across tstun and netstack APIs
with a lifetime that is scoped to a single tstun.Wrapper.Write() call.
In 25f0a3fc8f6f9cf681bb5afda8e1762816c67a8b we used build tags to
prevent importation of gVisor's GRO package on iOS as at the time we
believed it was contributing to additional memory usage on that
platform. It wasn't, so this commit simplifies and removes those
build tags.
Updates tailscale/corp#22353
Updates tailscale/corp#22125
Updates #6816
Signed-off-by: Jordan Whited <jordan@tailscale.com>
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