Re: [f2fs-dev] [PATCH] f2fs: fix incorrect parsing with option string

[Jaegeuk Kim]

Hi,

2014-03-17 (ì), 17:40 +0800, Chao Yu:
> Previously 'background_gc={on***,off***}' is being parsed as correct option,
> with this patch we cloud fix the trivial bug in mount process.
> 
> Signed-off-by: Chao Yu <chao2.yu@xxxxxxxxxxx>
> ---
>  fs/f2fs/super.c |    4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
> index 057a3ef..6597290 100644
> --- a/fs/f2fs/super.c
> +++ b/fs/f2fs/super.c
> @@ -258,9 +258,9 @@ static int parse_options(struct super_block *sb, char *options)
>  
>  			if (!name)
>  				return -ENOMEM;
> -			if (!strncmp(name, "on", 2))
> +			if (!strncmp(name, "on", strlen(name)))

What about 'background_gc=o'?
Need to check strlen(name) == 2...
Thanks,

>  				set_opt(sbi, BG_GC);
> -			else if (!strncmp(name, "off", 3))
> +			else if (!strncmp(name, "off", strlen(name)))
>  				clear_opt(sbi, BG_GC);
>  			else {
>  				kfree(name);

-- 
Jaegeuk Kim
Samsung

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