From: Viacheslav Dubeyko <slava@dubeyko.com>
To: Chengguang Xu <cgxu519@gmx.com>, linux-fsdevel@vger.kernel.org
Cc: dhowells@redhat.com, kstewart@linuxfoundation.org,
gregkh@linuxfoundation.org, tglx@linutronix.de,
pombredanne@nexb.com, linux-kernel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH 2/2] hfsplus: fix potential refcnt problem of nls module
Date: Wed, 18 Apr 2018 10:11:01 -0700 [thread overview]
Message-ID: <1524071461.2606.8.camel@dubeyko.com> (raw)
In-Reply-To: <1523948733-8537-2-git-send-email-cgxu519@gmx.com>
On Tue, 2018-04-17 at 15:05 +0800, Chengguang Xu wrote:
> When specifying nls option multiple times in a mount,
> current option parsing will cause inaccurate refcount of nls
> module. Hence, call unload_nls for previous one in this case.
>
> Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
Looks good.
Reviewed-by: Vyacheslav Dubeyko <slava@dubeyko.com>
Thanks,
Vyacheslav Dubeyko.
> ---
> fs/hfsplus/options.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/fs/hfsplus/options.c b/fs/hfsplus/options.c
> index 047e05c..068d4e2 100644
> --- a/fs/hfsplus/options.c
> +++ b/fs/hfsplus/options.c
> @@ -171,8 +171,10 @@ int hfsplus_parse_options(char *input, struct
> hfsplus_sb_info *sbi)
> return 0;
> }
> p = match_strdup(&args[0]);
> - if (p)
> + if (p) {
> + unload_nls(sbi->nls);
> sbi->nls = load_nls(p);
> + }
> if (!sbi->nls) {
> pr_err("unable to load nls mapping
> \"%s\"\n",
> p);
next prev parent reply other threads:[~2018-04-18 17:11 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-17 7:05 [PATCH 1/2] hfs: fix potential refcnt problem of nls module Chengguang Xu
2018-04-17 7:05 ` [PATCH 2/2] hfsplus: " Chengguang Xu
2018-04-18 17:11 ` Viacheslav Dubeyko [this message]
2018-04-18 19:43 ` Andrew Morton
2018-04-18 17:10 ` [PATCH 1/2] hfs: " Viacheslav Dubeyko
2018-04-18 19:42 ` Andrew Morton
2018-04-19 1:18 ` cgxu519
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