[LTP] [PATCH v7 1/3] lib: alter find_free_loopdev()

[Petr Vorel]

Hi Xu,

...
> +++ b/doc/test-writing-guidelines.txt
> @@ -1053,6 +1053,18 @@ IMPORTANT: All testcases should use 'tst_umount()' instead of 'umount(2)' to
>  -------------------------------------------------------------------------------
>  #include "tst_test.h"

> +int tst_find_free_loopdev(const char *path, size_t path_len);
> +-------------------------------------------------------------------------------
> +
> +This function finds a free loopdev and returns the free loopdev minor (-1 for no
> +free loopdev). If path is non-NULL, it will be filled with free loopdev path.
> +If you want to use a customized loop device, we can call tst_find_free_loopdev
> +(NULL, 0) in tests to get a free minor number. Then mknod.
Maybe (as "Then mknod." is a sentence without a verb):
   (NULL, 0) in tests to get a free minor number and then mknod.

(nitch, of course can be fixed during merge)

Kind regards,
Petr