Re: [f2fs-dev] [PATCH 0/9] f2fs: new mount API conversion

[Hongbo Li via Linux-f2fs-devel <linux-f2fs-devel@lists.sourceforge.net>]

Is the subject of the email required to be [f2fs-dev][PATCH]?

Thanks,
Hongbo

On 2024/8/14 10:39, Hongbo Li wrote:
> Since many filesystems have done the new mount API conversion,
> we introduce the new mount API conversion in f2fs.
> 
> The series can be applied on top of the current mainline tree
> and the work is based on the patches from Lukas Czerner (has
> done this in ext4[1]). His patch give me a lot of ideas.
> 
> Here is a high level description of the patchset:
> 
> 1. Prepare the f2fs mount parameters required by the new mount
> API and use it for parsing, while still using the old API to
> get mount options string. Split the parameter parsing and
> validation of the parse_options helper into two separate
> helpers.
> 
>    f2fs: Add fs parameter specifications for mount options
>    f2fs: move the option parser into handle_mount_opt
>    f2fs: move option validation into a separate helper
> 
> 2. Remove the use of sb/sbi structure of f2fs from all the
> parsing code, because with the new mount API the parsing is
> going to be done before we even get the super block. In this
> part, we introduce f2fs_fs_context to hold the temporary
> options when parsing. For the simple options check, it has
> to be done during parsing by using f2fs_fs_context structure.
> For the check which needs sb/sbi, we do this during super
> block filling.
> 
>    f2fs: Allow sbi to be NULL in f2fs_printk
>    f2fs: Add f2fs_fs_context to record the mount options
>    f2fs: separate the options parsing and options checking
> 
> 3. Switch the f2fs to use the new mount API for mount and
> remount.
> 
>    f2fs: introduce fs_context_operation structure
>    f2fs: switch to the new mount api
> 
> 4. Cleanup the old unused structures and helpers.
> 
>    f2fs: remove unused structure and functions
> 
> There is still a potential to do some cleanups and perhaps
> refactoring. However that can be done later after the conversion
> to the new mount API which is the main purpose of the patchset.
> 
> [1] https://lore.kernel.org/all/20211021114508.21407-1-lczerner@redhat.com/
> 
> Hongbo Li (9):
>    f2fs: Add fs parameter specifications for mount options
>    f2fs: move the option parser into handle_mount_opt
>    f2fs: move option validation into a separate helper
>    f2fs: Allow sbi to be NULL in f2fs_printk
>    f2fs: Add f2fs_fs_context to record the mount options
>    f2fs: separate the options parsing and options checking
>    f2fs: introduce fs_context_operation structure
>    f2fs: switch to the new mount api
>    f2fs: remove unused structure and functions
> 
>   fs/f2fs/super.c | 2211 ++++++++++++++++++++++++++++-------------------
>   1 file changed, 1341 insertions(+), 870 deletions(-)
> 


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