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bug#56880: [PATCH] gnu: system: file-systems: Add shared flag.
From: |
Oleg Pykhalov |
Subject: |
bug#56880: [PATCH] gnu: system: file-systems: Add shared flag. |
Date: |
Wed, 10 Aug 2022 07:19:38 +0300 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) |
Ludovic Courtès <ludo@gnu.org> writes:
[…]
>> I looked again on this procedure before merge. With applied patch it
>> will return a wrong bitmask according to the manual page:
>>
>> mount(2)
>>
>> The only other flags that can be specified while changing the propaga‐
>> tion type are MS_REC (described below) and MS_SILENT (which is ig‐
>> nored).
>>
>> Also I tried to invoke 'mount' from C code, if MS_SHARED specified and
>> mountpoint does not exist (not mounted without MS_SHARED before), then
>> nothing will happen.
>
> Hmm not sure I follow.
[…]
>> 2. Modify option-string->mount-flags in such way, that it will return
>> multiple bitmasks or in some other way.
[…]
> I’m not sure what option #2 means concretely?
We need to call mount(2) two times, which is not handled by
option-string->mount-flags which returns only one mount(2) bitmask.
I pushed #1 as 4b494878380920c8c7eecccd1f299164dd4a2c3f to master.
Oleg.
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