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SubjectRe: [PATCH v4 7/9] fs/ntfs3: Add iocharset= mount option as alias for nls=
On Tuesday 07 September 2021 18:35:55 Kari Argillander wrote:
> Other fs drivers are using iocharset= mount option for specifying charset.
> So add it also for ntfs3 and mark old nls= mount option as deprecated.
>
> Signed-off-by: Kari Argillander <kari.argillander@gmail.com>

Reviewed-by: Pali Rohár <pali@kernel.org>

> ---
> Documentation/filesystems/ntfs3.rst | 4 ++--
> fs/ntfs3/super.c | 18 +++++++++++-------
> 2 files changed, 13 insertions(+), 9 deletions(-)
>
> diff --git a/Documentation/filesystems/ntfs3.rst b/Documentation/filesystems/ntfs3.rst
> index af7158de6fde..ded706474825 100644
> --- a/Documentation/filesystems/ntfs3.rst
> +++ b/Documentation/filesystems/ntfs3.rst
> @@ -32,12 +32,12 @@ generic ones.
>
> ===============================================================================
>
> -nls=name This option informs the driver how to interpret path
> +iocharset=name This option informs the driver how to interpret path
> strings and translate them to Unicode and back. If
> this option is not set, the default codepage will be
> used (CONFIG_NLS_DEFAULT).
> Examples:
> - 'nls=utf8'
> + 'iocharset=utf8'
>
> uid=
> gid=
> diff --git a/fs/ntfs3/super.c b/fs/ntfs3/super.c
> index 729ead6f2fac..503e2e23f711 100644
> --- a/fs/ntfs3/super.c
> +++ b/fs/ntfs3/super.c
> @@ -226,7 +226,7 @@ enum Opt {
> Opt_nohidden,
> Opt_showmeta,
> Opt_acl,
> - Opt_nls,
> + Opt_iocharset,
> Opt_prealloc,
> Opt_no_acs_rules,
> Opt_err,
> @@ -245,9 +245,13 @@ static const struct fs_parameter_spec ntfs_fs_parameters[] = {
> fsparam_flag_no("hidden", Opt_nohidden),
> fsparam_flag_no("acl", Opt_acl),
> fsparam_flag_no("showmeta", Opt_showmeta),
> - fsparam_string("nls", Opt_nls),
> fsparam_flag_no("prealloc", Opt_prealloc),
> fsparam_flag("no_acs_rules", Opt_no_acs_rules),
> + fsparam_string("iocharset", Opt_iocharset),
> +
> + __fsparam(fs_param_is_string,
> + "nls", Opt_iocharset,
> + fs_param_deprecated, NULL),
> {}
> };
>
> @@ -346,7 +350,7 @@ static int ntfs_fs_parse_param(struct fs_context *fc,
> case Opt_showmeta:
> opts->showmeta = result.negated ? 0 : 1;
> break;
> - case Opt_nls:
> + case Opt_iocharset:
> kfree(opts->nls_name);
> opts->nls_name = param->string;
> param->string = NULL;
> @@ -380,11 +384,11 @@ static int ntfs_fs_reconfigure(struct fs_context *fc)
> new_opts->nls = ntfs_load_nls(new_opts->nls_name);
> if (IS_ERR(new_opts->nls)) {
> new_opts->nls = NULL;
> - errorf(fc, "ntfs3: Cannot load nls %s", new_opts->nls_name);
> + errorf(fc, "ntfs3: Cannot load iocharset %s", new_opts->nls_name);
> return -EINVAL;
> }
> if (new_opts->nls != sbi->options->nls)
> - return invalf(fc, "ntfs3: Cannot use different nls when remounting!");
> + return invalf(fc, "ntfs3: Cannot use different iocharset when remounting!");
>
> sync_filesystem(sb);
>
> @@ -528,9 +532,9 @@ static int ntfs_show_options(struct seq_file *m, struct dentry *root)
> if (opts->dmask)
> seq_printf(m, ",dmask=%04o", ~opts->fs_dmask_inv);
> if (opts->nls)
> - seq_printf(m, ",nls=%s", opts->nls->charset);
> + seq_printf(m, ",iocharset=%s", opts->nls->charset);
> else
> - seq_puts(m, ",nls=utf8");
> + seq_puts(m, ",iocharset=utf8");
> if (opts->sys_immutable)
> seq_puts(m, ",sys_immutable");
> if (opts->discard)
> --
> 2.25.1
>

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