[PATCH v3 1/3] fs: add parseopt_b for loop mount option

[Sascha Hauer]

On Thu, Jun 01, 2017 at 12:37:28PM +0200, Philipp Zabel wrote:
> Signed-off-by: Philipp Zabel <p.zabel at pengutronix.de>
> ---
> No changes since v2.
> ---
>  fs/parseopt.c | 26 ++++++++++++++++++++++++++
>  fs/parseopt.h |  1 +
>  2 files changed, 27 insertions(+)

Applied, thanks

Sascha

> 
> diff --git a/fs/parseopt.c b/fs/parseopt.c
> index 12dbe1813c..8ff83019a7 100644
> --- a/fs/parseopt.c
> +++ b/fs/parseopt.c
> @@ -2,6 +2,32 @@
>  
>  #include "parseopt.h"
>  
> +void parseopt_b(const char *options, const char *opt, bool *val)
> +{
> +	const char *start;
> +	size_t optlen = strlen(opt);
> +
> +again:
> +	start = strstr(options, opt);
> +
> +	if (!start) {
> +		*val = false;
> +		return;
> +	}
> +
> +	if (start > options && start[-1] != ',') {
> +		options = start;
> +		goto again;
> +	}
> +
> +	if (start[optlen] != ',' && start[optlen] != '\0') {
> +		options = start;
> +		goto again;
> +	}
> +
> +	*val = true;
> +}
> +
>  void parseopt_hu(const char *options, const char *opt, unsigned short *val)
>  {
>  	const char *start;
> diff --git a/fs/parseopt.h b/fs/parseopt.h
> index a8523b6a10..abf3be3f35 100644
> --- a/fs/parseopt.h
> +++ b/fs/parseopt.h
> @@ -1 +1,2 @@
> +void parseopt_b(const char *options, const char *opt, bool *val);
>  void parseopt_hu(const char *options, const char *opt, unsigned short *val);
> -- 
> 2.11.0
> 
> 
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