Re: [PATCH][2.5] introduce list_move macros

From: OGAWA Hirofumi (hirofumi@mail.parknet.co.jp)
Date: Sun Jun 09 2002 - 06:48:09 EST


Lightweight patch manager <patch@luckynet.dynu.com> writes:

> This is the only _global_ patch about the list_move macros, which means
> introducing them. Here they are:
>
> --- linus-2.5/include/linux/list.h Sun Jun 9 04:17:14 2002
> +++ thunder-2.5/include/linux/list.h Sun Jun 9 05:07:02 2002
> @@ -174,6 +174,24 @@
> for (pos = (head)->next, n = pos->next; pos != (head); \
> pos = n, n = pos->next)
>
> +/**
> + * list_move - move a list entry from a right after b
> + * @list the entry to move
> + * @head the entry to move after
> + */
> +#define list_move(list,head) \
> + list_del(list); \
> + list_add(list,head)
> +
> +/**
> + * list_move_tail - move a list entry from a right before b
> + * @list the entry to move
> + * @head the entry that will come after ours
> + */
> +#define list_move(list,head) \
                ^^^^
Probably typo. list_move_tail.

> + list_del(list); \
> + list_add_tail(list,head)
> +
> #endif /* __KERNEL__ || _LVM_H_INCLUDE */
>
> #endif

        if (check_something(x))
                list_move(p, head);

In the above case, these seems unsafe. So, shouldn't these use
`do {} while(0)' or `inline function'?

-- 
OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
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