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There are a few places in the code which checks that the running kernel
is greater than or equal to x.y. The check takes a few lines and the
checking code is somewhat distracting.
Let's abstract this check into a simple function, KernelVersionGE,
and convert the users accordingly.
Add a test case (I'm not sure it has much value, can be dropped).
Change-Id: I8ec91dcc7452363361f95e46794701c0ae57d956
Reviewed-on: https://go-review.googlesource.com/c/go/+/700796
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Mark Freeman <markfreeman@google.com>
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Currently, there are 3 functions returning Linux kernel version numbers.
Two of them are identical:
- in net, initially added by commit 0a9dd47dd817904e;
- in internal/poll, initially added by commit 1c7650aa93bd53;
(both were later fixed by commit 66c02645062561a).
The third one is a more complex, regexp-based implementation in
runtime/pprof, which is only used for a test.
Instead of adding one more, let's consolidate existing ones.
Remove the complex implementation, and move the simple one into
internal/syscall/unix. Use it from all the three places mentioned above.
Change-Id: I4a34d9ca47257743c16def30e4dd634e36056091
Reviewed-on: https://go-review.googlesource.com/c/go/+/424896
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Kirill Kolyshkin <kolyshkin@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
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The sk_max_ack_backlog was increased from uint16 to uint32 in kernel
version 4.1 and above, so adopt that change to maxListenerBacklog.
See https://github.com/torvalds/linux/commit/becb74f0acca19b5abfcb24dc602530f3deea66a
Fixes #41470
Change-Id: I63a142eb28f3ac3acaca57f0903c085c6cb15a6e
Reviewed-on: https://go-review.googlesource.com/c/go/+/255898
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Trust: Emmanuel Odeke <emm.odeke@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
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