Re: [PATCH 2/6] xfstests: Add fallocate zero range operation to fsstress

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On Tue, Feb 25, 2014 at 08:15:24PM +0100, Lukas Czerner wrote:
> Signed-off-by: Lukas Czerner <lczerner@xxxxxxxxxx>

commit message?

> @@ -2561,6 +2567,62 @@ punch_f(int opno, long r)
>  }
>  
>  void
> +zero_f(int opno, long r)
> +{
> +#ifdef FALLOCATE
> +	int		e;
> +	pathname_t	f;
> +	int		fd;
> +	__int64_t	lr;
> +	off64_t		off;
> +	off64_t		len;
> +	struct stat64	stb;
> +	int		v;
> +	char		st[1024];

[snip]

We now have 3 copies of this fallocate code, the only difference
between the copies being the mode:

> +	int mode = FALLOC_FL_ZERO_RANGE;

passed into the fallocate function. Please factor.

> +
> +	init_pathname(&f);
> +	if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) {
> +		if (v)
> +			printf("%d/%d: zero range - no filename\n", procid, opno);
> +		free_pathname(&f);
> +		return;
> +	}
> +	fd = open_path(&f, O_RDWR);
> +	e = fd < 0 ? errno : 0;

while you are there, get rid of the ternary operations and just use

	if (fd < 0)
		e = errno;

> +	check_cwd();

This can go after we've checked for an error on open, which avoids
needing to save the errno....

Cheers,

Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx

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