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From: "André Almeida" <andrealmeid@collabora.com>
To: Gabriel Krisman Bertazi <krisman@collabora.com>
Cc: Hugh Dickins <hughd@google.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	smcv@collabora.com, kernel@collabora.com, linux-mm@kvack.org,
	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	Daniel Rosenberg <drosen@google.com>
Subject: Re: [RFC PATCH 4/4] docs: tmpfs: Add casefold options
Date: Wed, 24 Mar 2021 17:47:12 -0300	[thread overview]
Message-ID: <4058c0b9-d940-f069-8b31-39cd7ae16062@collabora.com> (raw)
In-Reply-To: <87o8f9bjiw.fsf@collabora.com>

Hi Gabriel,

Às 19:19 de 23/03/21, Gabriel Krisman Bertazi escreveu:
> André Almeida <andrealmeid@collabora.com> writes:
> 
>> Document mounting options to enable casefold support in tmpfs.
>>
>> Signed-off-by: André Almeida <andrealmeid@collabora.com>
>> ---
>>   Documentation/filesystems/tmpfs.rst | 26 ++++++++++++++++++++++++++
>>   1 file changed, 26 insertions(+)
>>
>> diff --git a/Documentation/filesystems/tmpfs.rst b/Documentation/filesystems/tmpfs.rst
>> index 0408c245785e..84c87c309bd7 100644
>> --- a/Documentation/filesystems/tmpfs.rst
>> +++ b/Documentation/filesystems/tmpfs.rst
>> @@ -170,6 +170,32 @@ So 'mount -t tmpfs -o size=10G,nr_inodes=10k,mode=700 tmpfs /mytmpfs'
>>   will give you tmpfs instance on /mytmpfs which can allocate 10GB
>>   RAM/SWAP in 10240 inodes and it is only accessible by root.
>>   
>> +tmpfs has the following mounting options for case-insesitive lookups support:
>> +
>> +=========   ==============================================================
>> +casefold    Enable casefold support at this mount point using the given
>> +            argument as enconding. Currently only utf8 encondings are supported.
>> +cf_strict   Enable strict casefolding at this mouting point (disabled by
>> +            default). This means that invalid strings should be reject by the
>> +            file system.
> 
> strict mode refers to the encoding, not exactly casefold.  Maybe we
> could have a parameter encoding_flags that accepts the flag 'strict'.
> This would make it closer to the ext4 interface.

What are the other enconding flags? Or is this more about having a 
properly extensible interface?

> Alternatively, call this option strict_encoding.
> 

Thanks,
	André


      reply	other threads:[~2021-03-24 20:47 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-23 19:59 [RFC PATCH 0/4] mm: shmem: Add case-insensitive support for tmpfs André Almeida
2021-03-23 19:59 ` [RFC PATCH 1/4] Revert "libfs: unexport generic_ci_d_compare() and generic_ci_d_hash()" André Almeida
2021-03-23 20:15   ` Matthew Wilcox
2021-03-24 20:09     ` André Almeida
2021-03-23 19:59 ` [RFC PATCH 2/4] mm: shmem: Support case-insensitive file name lookups André Almeida
2021-03-23 20:18   ` Gabriel Krisman Bertazi
2021-03-24 20:17     ` André Almeida
2021-03-23 23:19   ` Al Viro
2021-03-24 20:44     ` André Almeida
2021-03-23 19:59 ` [RFC PATCH 3/4] mm: shmem: Add IOCTL support for tmpfs André Almeida
2021-03-23 22:15   ` Gabriel Krisman Bertazi
2021-03-23 19:59 ` [RFC PATCH 4/4] docs: tmpfs: Add casefold options André Almeida
2021-03-23 21:58   ` Randy Dunlap
2021-03-25 14:27     ` André Almeida
2021-03-23 22:19   ` Gabriel Krisman Bertazi
2021-03-24 20:47     ` André Almeida [this message]

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