linux-cifs.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Jan Kara <jack@suse.cz>
To: "Pali Rohár" <pali@kernel.org>
Cc: linux-fsdevel@vger.kernel.org,
	linux-ntfs-dev@lists.sourceforge.net, linux-cifs@vger.kernel.org,
	jfs-discussion@lists.sourceforge.net,
	linux-kernel@vger.kernel.org,
	"Alexander Viro" <viro@zeniv.linux.org.uk>,
	"Jan Kara" <jack@suse.cz>,
	"OGAWA Hirofumi" <hirofumi@mail.parknet.co.jp>,
	"Theodore Y . Ts'o" <tytso@mit.edu>,
	"Luis de Bethencourt" <luisbg@kernel.org>,
	"Salah Triki" <salah.triki@gmail.com>,
	"Andrew Morton" <akpm@linux-foundation.org>,
	"Dave Kleikamp" <shaggy@kernel.org>,
	"Anton Altaparmakov" <anton@tuxera.com>,
	"Pavel Machek" <pavel@ucw.cz>, "Marek Behún" <marek.behun@nic.cz>,
	"Christoph Hellwig" <hch@infradead.org>
Subject: Re: [RFC PATCH 04/20] isofs: joliet: Fix iocharset=utf8 mount option
Date: Thu, 12 Aug 2021 16:18:11 +0200	[thread overview]
Message-ID: <20210812141811.GF14675@quack2.suse.cz> (raw)
In-Reply-To: <20210808162453.1653-5-pali@kernel.org>

On Sun 08-08-21 18:24:37, Pali Rohár wrote:
> Currently iocharset=utf8 mount option is broken. To use UTF-8 as iocharset,
> it is required to use utf8 mount option.
> 
> Fix iocharset=utf8 mount option to use be equivalent to the utf8 mount
> option.
> 
> If UTF-8 as iocharset is used then s_nls_iocharset is set to NULL. So
> simplify code around, remove s_utf8 field as to distinguish between UTF-8
> and non-UTF-8 it is needed just to check if s_nls_iocharset is set to NULL
> or not.
> 
> Signed-off-by: Pali Rohár <pali@kernel.org>

Looks good to me. Feel free to add:

Reviewed-by: Jan Kara <jack@suse.cz>

I can also take this patch through my tree if you want.

								Honza

> ---
>  fs/isofs/inode.c  | 27 +++++++++++++--------------
>  fs/isofs/isofs.h  |  1 -
>  fs/isofs/joliet.c |  4 +---
>  3 files changed, 14 insertions(+), 18 deletions(-)
> 
> diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
> index 21edc423b79f..678e2c51b855 100644
> --- a/fs/isofs/inode.c
> +++ b/fs/isofs/inode.c
> @@ -155,7 +155,6 @@ struct iso9660_options{
>  	unsigned int overriderockperm:1;
>  	unsigned int uid_set:1;
>  	unsigned int gid_set:1;
> -	unsigned int utf8:1;
>  	unsigned char map;
>  	unsigned char check;
>  	unsigned int blocksize;
> @@ -356,7 +355,6 @@ static int parse_options(char *options, struct iso9660_options *popt)
>  	popt->gid = GLOBAL_ROOT_GID;
>  	popt->uid = GLOBAL_ROOT_UID;
>  	popt->iocharset = NULL;
> -	popt->utf8 = 0;
>  	popt->overriderockperm = 0;
>  	popt->session=-1;
>  	popt->sbsector=-1;
> @@ -389,10 +387,13 @@ static int parse_options(char *options, struct iso9660_options *popt)
>  		case Opt_cruft:
>  			popt->cruft = 1;
>  			break;
> +#ifdef CONFIG_JOLIET
>  		case Opt_utf8:
> -			popt->utf8 = 1;
> +			kfree(popt->iocharset);
> +			popt->iocharset = kstrdup("utf8", GFP_KERNEL);
> +			if (!popt->iocharset)
> +				return 0;
>  			break;
> -#ifdef CONFIG_JOLIET
>  		case Opt_iocharset:
>  			kfree(popt->iocharset);
>  			popt->iocharset = match_strdup(&args[0]);
> @@ -495,7 +496,6 @@ static int isofs_show_options(struct seq_file *m, struct dentry *root)
>  	if (sbi->s_nocompress)		seq_puts(m, ",nocompress");
>  	if (sbi->s_overriderockperm)	seq_puts(m, ",overriderockperm");
>  	if (sbi->s_showassoc)		seq_puts(m, ",showassoc");
> -	if (sbi->s_utf8)		seq_puts(m, ",utf8");
>  
>  	if (sbi->s_check)		seq_printf(m, ",check=%c", sbi->s_check);
>  	if (sbi->s_mapping)		seq_printf(m, ",map=%c", sbi->s_mapping);
> @@ -518,9 +518,10 @@ static int isofs_show_options(struct seq_file *m, struct dentry *root)
>  		seq_printf(m, ",fmode=%o", sbi->s_fmode);
>  
>  #ifdef CONFIG_JOLIET
> -	if (sbi->s_nls_iocharset &&
> -	    strcmp(sbi->s_nls_iocharset->charset, CONFIG_NLS_DEFAULT) != 0)
> +	if (sbi->s_nls_iocharset)
>  		seq_printf(m, ",iocharset=%s", sbi->s_nls_iocharset->charset);
> +	else
> +		seq_puts(m, ",iocharset=utf8");
>  #endif
>  	return 0;
>  }
> @@ -863,14 +864,13 @@ static int isofs_fill_super(struct super_block *s, void *data, int silent)
>  	sbi->s_nls_iocharset = NULL;
>  
>  #ifdef CONFIG_JOLIET
> -	if (joliet_level && opt.utf8 == 0) {
> +	if (joliet_level) {
>  		char *p = opt.iocharset ? opt.iocharset : CONFIG_NLS_DEFAULT;
> -		sbi->s_nls_iocharset = load_nls(p);
> -		if (! sbi->s_nls_iocharset) {
> -			/* Fail only if explicit charset specified */
> -			if (opt.iocharset)
> +		if (strcmp(p, "utf8") != 0) {
> +			sbi->s_nls_iocharset = opt.iocharset ?
> +				load_nls(opt.iocharset) : load_nls_default();
> +			if (!sbi->s_nls_iocharset)
>  				goto out_freesbi;
> -			sbi->s_nls_iocharset = load_nls_default();
>  		}
>  	}
>  #endif
> @@ -886,7 +886,6 @@ static int isofs_fill_super(struct super_block *s, void *data, int silent)
>  	sbi->s_gid = opt.gid;
>  	sbi->s_uid_set = opt.uid_set;
>  	sbi->s_gid_set = opt.gid_set;
> -	sbi->s_utf8 = opt.utf8;
>  	sbi->s_nocompress = opt.nocompress;
>  	sbi->s_overriderockperm = opt.overriderockperm;
>  	/*
> diff --git a/fs/isofs/isofs.h b/fs/isofs/isofs.h
> index 055ec6c586f7..dcdc191ed183 100644
> --- a/fs/isofs/isofs.h
> +++ b/fs/isofs/isofs.h
> @@ -44,7 +44,6 @@ struct isofs_sb_info {
>  	unsigned char s_session;
>  	unsigned int  s_high_sierra:1;
>  	unsigned int  s_rock:2;
> -	unsigned int  s_utf8:1;
>  	unsigned int  s_cruft:1; /* Broken disks with high byte of length
>  				  * containing junk */
>  	unsigned int  s_nocompress:1;
> diff --git a/fs/isofs/joliet.c b/fs/isofs/joliet.c
> index be8b6a9d0b92..c0f04a1e7f69 100644
> --- a/fs/isofs/joliet.c
> +++ b/fs/isofs/joliet.c
> @@ -41,14 +41,12 @@ uni16_to_x8(unsigned char *ascii, __be16 *uni, int len, struct nls_table *nls)
>  int
>  get_joliet_filename(struct iso_directory_record * de, unsigned char *outname, struct inode * inode)
>  {
> -	unsigned char utf8;
>  	struct nls_table *nls;
>  	unsigned char len = 0;
>  
> -	utf8 = ISOFS_SB(inode->i_sb)->s_utf8;
>  	nls = ISOFS_SB(inode->i_sb)->s_nls_iocharset;
>  
> -	if (utf8) {
> +	if (!nls) {
>  		len = utf16s_to_utf8s((const wchar_t *) de->name,
>  				de->name_len[0] >> 1, UTF16_BIG_ENDIAN,
>  				outname, PAGE_SIZE);
> -- 
> 2.20.1
> 
-- 
Jan Kara <jack@suse.com>
SUSE Labs, CR

  reply	other threads:[~2021-08-12 14:18 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-08 16:24 [RFC PATCH 00/20] fs: Remove usage of broken nls_utf8 and drop it Pali Rohár
2021-08-08 16:24 ` [RFC PATCH 01/20] fat: Fix iocharset=utf8 mount option Pali Rohár
2021-08-15  3:42   ` OGAWA Hirofumi
2021-08-15  9:42     ` Pali Rohár
2021-08-15 11:23       ` OGAWA Hirofumi
2021-08-23  3:51   ` Kari Argillander
2021-08-08 16:24 ` [RFC PATCH 02/20] hfsplus: Add iocharset= mount option as alias for nls= Pali Rohár
2021-08-09 17:51   ` Viacheslav Dubeyko
2021-08-09 20:49   ` Kari Argillander
2021-08-09 21:25     ` Pali Rohár
2021-08-08 16:24 ` [RFC PATCH 03/20] udf: Fix iocharset=utf8 mount option Pali Rohár
2021-08-12 14:17   ` Jan Kara
2021-08-12 15:51     ` Pali Rohár
2021-08-13 13:48       ` Jan Kara
2021-08-19  8:34         ` Pali Rohár
2021-08-19 10:41           ` Jan Kara
2021-08-08 16:24 ` [RFC PATCH 04/20] isofs: joliet: " Pali Rohár
2021-08-12 14:18   ` Jan Kara [this message]
2021-08-08 16:24 ` [RFC PATCH 05/20] ntfs: Undeprecate iocharset= " Pali Rohár
2021-08-09 20:52   ` Kari Argillander
2021-08-19  1:21   ` Kari Argillander
2021-08-19  8:12     ` Pali Rohár
2021-08-19 10:23       ` Kari Argillander
2021-08-19 22:04         ` Pali Rohár
2021-08-19 23:18           ` Kari Argillander
2021-08-08 16:24 ` [RFC PATCH 06/20] ntfs: Fix error processing when load_nls() fails Pali Rohár
2021-08-08 16:24 ` [RFC PATCH 07/20] befs: Fix printing iocharset= mount option Pali Rohár
2021-08-08 16:24 ` [RFC PATCH 08/20] befs: Rename enum value Opt_charset to Opt_iocharset to match " Pali Rohár
2021-08-08 16:24 ` [RFC PATCH 09/20] befs: Fix error processing when load_nls() fails Pali Rohár
2021-08-08 16:24 ` [RFC PATCH 10/20] befs: Allow to use native UTF-8 mode Pali Rohár
2021-08-08 16:24 ` [RFC PATCH 11/20] hfs: Explicitly set hsb->nls_disk when hsb->nls_io is set Pali Rohár
2021-08-09 17:31   ` Viacheslav Dubeyko
2021-08-09 17:37     ` Matthew Wilcox
2021-08-09 17:47       ` Pali Rohár
2021-08-09 20:43         ` Steve French
2021-08-09 18:00       ` Viacheslav Dubeyko
2021-08-08 16:24 ` [RFC PATCH 12/20] hfs: Do not use broken utf8 NLS table for iocharset=utf8 mount option Pali Rohár
2021-08-09 17:49   ` Viacheslav Dubeyko
2021-08-08 16:24 ` [RFC PATCH 13/20] hfsplus: " Pali Rohár
2021-08-09 17:42   ` Viacheslav Dubeyko
2021-08-08 16:24 ` [RFC PATCH 14/20] jfs: Remove custom iso8859-1 implementation Pali Rohár
2021-08-08 16:24 ` [RFC PATCH 15/20] jfs: Fix buffer overflow in jfs_strfromUCS_le() function Pali Rohár
2021-08-08 16:24 ` [RFC PATCH 16/20] jfs: Do not use broken utf8 NLS table for iocharset=utf8 mount option Pali Rohár
2021-08-08 16:24 ` [RFC PATCH 17/20] ntfs: " Pali Rohár
2021-08-08 16:24 ` [RFC PATCH 18/20] cifs: " Pali Rohár
2021-08-08 16:24 ` [RFC PATCH 19/20] cifs: Remove usage of load_nls_default() calls Pali Rohár
2021-08-08 16:24 ` [RFC PATCH 20/20] nls: Drop broken nls_utf8 module Pali Rohár
2021-09-03 21:26 ` [RFC PATCH 00/20] fs: Remove usage of broken nls_utf8 and drop it Kari Argillander
2021-09-03 21:37   ` Pali Rohár
2021-09-03 22:06     ` Kari Argillander

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210812141811.GF14675@quack2.suse.cz \
    --to=jack@suse.cz \
    --cc=akpm@linux-foundation.org \
    --cc=anton@tuxera.com \
    --cc=hch@infradead.org \
    --cc=hirofumi@mail.parknet.co.jp \
    --cc=jfs-discussion@lists.sourceforge.net \
    --cc=linux-cifs@vger.kernel.org \
    --cc=linux-fsdevel@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-ntfs-dev@lists.sourceforge.net \
    --cc=luisbg@kernel.org \
    --cc=marek.behun@nic.cz \
    --cc=pali@kernel.org \
    --cc=pavel@ucw.cz \
    --cc=salah.triki@gmail.com \
    --cc=shaggy@kernel.org \
    --cc=tytso@mit.edu \
    --cc=viro@zeniv.linux.org.uk \
    --subject='Re: [RFC PATCH 04/20] isofs: joliet: Fix iocharset=utf8 mount option' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).