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author | Pavel Emelyanov <xemul@openvz.org> | 2007-09-18 13:20:41 -0700 |
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committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-10 16:51:35 -0700 |
commit | 768f3591e2b1cc309fd6f10d6579b216026d7817 (patch) | |
tree | 0328abd6a6a306e648120ac2ef20332954e852e0 /include/linux/list.h | |
parent | 1a348ccc1047a00507e554826775a3d81f7f3437 (diff) | |
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[NETNS]: Cleanup list walking in setup_net and cleanup_net
I proposed introducing a list_for_each_entry_continue_reverse macro
to be used in setup_net() when unrolling the failed ->init callback.
Here is the macro and some more cleanup in the setup_net() itself
to remove one variable from the stack :) The same thing is for the
cleanup_net() - the existing list_for_each_entry_reverse() is used.
Minor, but the code looks nicer.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/list.h')
-rw-r--r-- | include/linux/list.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/list.h b/include/linux/list.h index f29fc9c..ad9dcb9 100644 --- a/include/linux/list.h +++ b/include/linux/list.h @@ -525,6 +525,20 @@ static inline void list_splice_init_rcu(struct list_head *list, pos = list_entry(pos->member.next, typeof(*pos), member)) /** + * list_for_each_entry_continue_reverse - iterate backwards from the given point + * @pos: the type * to use as a loop cursor. + * @head: the head for your list. + * @member: the name of the list_struct within the struct. + * + * Start to iterate over list of given type backwards, continuing after + * the current position. + */ +#define list_for_each_entry_continue_reverse(pos, head, member) \ + for (pos = list_entry(pos->member.prev, typeof(*pos), member); \ + prefetch(pos->member.prev), &pos->member != (head); \ + pos = list_entry(pos->member.prev, typeof(*pos), member)) + +/** * list_for_each_entry_from - iterate over list of given type from the current point * @pos: the type * to use as a loop cursor. * @head: the head for your list. |