linux-kernel - Wondering the reason why __fput_sync is not exported as GPL only

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Message-ID: <Yr10lO4vDLiqwLX6@nexusd>
Date:   Thu, 30 Jun 2022 13:01:56 +0300
From:   Cengiz Can <cengiz.can@...onical.com>
To:     Alexander Viro <viro@...iv.linux.org.uk>
Cc:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Wondering the reason why __fput_sync is not exported as GPL only

Hello Alexander!

While backporting a few commits from stable to ubuntu distro kernel, 
I noticed that `__fput_sync` in `fs/file_table.c` is exported as
EXPORT_SYMBOL rather than EXPORT_SYMBOL_GPL.

Since I don't know the details, I wanted to ask if you know why.

There are certain OOT patches, in circulation, that export this as _GPL
and I'm not sure if I can convert this export to non-GPL whenever it was
exported as GPL only.

Thank you in advance.

Cengiz Can