[LTP] [PATCH] refluxfs: Check kernel reflink support before mount

[Cyril Hrubis]

Hi!
> Something like this?
>
> diff --git a/lib/safe_macros.c b/lib/safe_macros.c
> index f95c5fdc5..34430d018 100644
> --- a/lib/safe_macros.c
> +++ b/lib/safe_macros.c
> @@ -993,9 +993,15 @@ int safe_mount(const char *file, const int lineno, void (*cleanup_fn)(void),
>  			"mount.%s failed with %i", filesystemtype, rval);
>  		return -1;
>  	} else if (rval == -1) {
> -		tst_brkm_(file, lineno, TBROK | TERRNO, cleanup_fn,
> -			"mount(%s, %s, %s, %lu, %p) failed", source, target,
> -			filesystemtype, mountflags, data);
> +		if (errno == EOPNOTSUPP) {
> +			tst_brkm_(file, lineno, TCONF | TERRNO, cleanup_fn,
> +				"mount(%s, %s, %s, %lu, %p) failed with EOPNOTSUPP", source, target,
> +				filesystemtype, mountflags, data);
> +		} else {
> +			tst_brkm_(file, lineno, TBROK | TERRNO, cleanup_fn,
> +				"mount(%s, %s, %s, %lu, %p) failed", source, target,
> +				filesystemtype, mountflags, data);
> +		}
>  	} else {
>  		tst_brkm_(file, lineno, TBROK | TERRNO, cleanup_fn,
>  			"Invalid mount(%s, %s, %s, %lu, %p) return value %d",
> diff --git a/testcases/kernel/syscalls/file_attr/file_attr02.c b/testcases/kernel/syscalls/file_attr/file_attr02.c
> index f6625985a..28c1c7ca6 100644
> --- a/testcases/kernel/syscalls/file_attr/file_attr02.c
> +++ b/testcases/kernel/syscalls/file_attr/file_attr02.c
> @@ -45,13 +45,7 @@ static void setup(void)
>  	struct stat statbuf;
>  
>  	SAFE_MKDIR(MNTPOINT, 0755);
> -	TEST(mount(tst_device->dev, MNTPOINT, tst_device->fs_type, 0, NULL));
> -
> -	if (TST_RET == -1 && TST_ERR == EOPNOTSUPP)
> -		tst_brk(TCONF, "Kernel does not support XFS reflinks");
> -
> -	if (TST_RET)
> -		tst_brk(TBROK | TTERRNO, "Mount failed");
> +	SAFE_MOUNT(tst_device->dev, MNTPOINT, tst_device->fs_type, 0, NULL);
>  
>  	SAFE_STAT(MNTPOINT, &statbuf);

Yes. If we do not do this we are going to open code the check over and
over.

-- 
Cyril Hrubis
chrubis@suse.cz