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Re: [PATCH] copy-file-range: work around Linux kernel bug

From: Paul Eggert
Subject: Re: [PATCH] copy-file-range: work around Linux kernel bug
Date: Sun, 16 Jan 2022 10:06:35 -0800
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.3.1

On 1/16/22 05:37, Pádraig Brady wrote:
This looks like the replacement will only be used when the build system uses an older kernel? If so this seems brittle. Consider the case where el7 rpms are being built on
central build systems with newer kernels.

It doesn't run any code on the newer kernels, right? It merely compiles. If the compilation environment says "this is being compiled for kernel 5.3", surely the generated code can assume 5.3 or later.

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