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Andy Pan 4f3246c6e9 internal/poll: drop redundant ENOSYS in CopyFileRange
Update CL 425881 and CL 428396

I browsed the source code related to copy_file_range in the kernel and found that the latest kernel may still return EXDEV errors in copy_file_range(2) due to certain cases, for details see: https://elixir.bootlin.com/linux/v5.19.7/source/fs/read_write.c#L1559, https://elixir.bootlin.com/linux/v5.19.7/source/fs/read_write.c#L1479, and
https://elixir.bootlin.com/linux/v5.19.7/source/fs/read_write.c#L1439.

Therefore, the EXDEV still needs to be kept, but the ENOSYS error can be safely removed.

Change-Id: I47026b8dd33f7ffc4de1306af6b67c7b4d2062d2
Reviewed-on: https://go-review.googlesource.com/c/go/+/428555
Run-TryBot: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Andy Pan <panjf2000@gmail.com>
2022-09-09 15:35:09 +00:00
.github .github: update issue label for pkgsite-removal 2022-09-07 16:00:20 +00:00
api syscall: add CgroupFD support for ForkExec on Linux 2022-09-09 15:34:16 +00:00
doc spec: describe slice-to-array conversions 2022-09-08 16:37:47 +00:00
lib/time lib/time, time/tzdata: update to 2022b 2022-08-11 20:03:19 +00:00
misc misc: use strings.Builder 2022-09-06 15:44:25 +00:00
src internal/poll: drop redundant ENOSYS in CopyFileRange 2022-09-09 15:35:09 +00:00
test go/types, types2: implement slice-to-array conversions 2022-09-08 15:55:44 +00:00
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.gitignore internal/buildcfg: move build configuration out of cmd/internal/objabi 2021-04-16 19:20:53 +00:00
codereview.cfg codereview.cfg: add codereview.cfg for master branch 2021-02-19 18:44:53 +00:00
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README.md README.md: update wiki link 2022-04-26 16:21:18 +00:00
SECURITY.md SECURITY.md: replace golang.org with go.dev 2022-04-26 19:59:47 +00:00

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