diff options
author | Pavel Emelianov | 2007-05-08 09:30:19 +0200 |
---|---|---|
committer | Linus Torvalds | 2007-05-08 20:15:11 +0200 |
commit | b5e618181a927210f8be1d3d2249d31904ba358d (patch) | |
tree | 731f1ae4ff1ba56d402bb329182b7d935bb439a1 /kernel/timer.c | |
parent | pnpbios: convert to use the kthread API (diff) | |
download | kernel-qcow2-linux-b5e618181a927210f8be1d3d2249d31904ba358d.tar.gz kernel-qcow2-linux-b5e618181a927210f8be1d3d2249d31904ba358d.tar.xz kernel-qcow2-linux-b5e618181a927210f8be1d3d2249d31904ba358d.zip |
Introduce a handy list_first_entry macro
There are many places in the kernel where the construction like
foo = list_entry(head->next, struct foo_struct, list);
are used.
The code might look more descriptive and neat if using the macro
list_first_entry(head, type, member) \
list_entry((head)->next, type, member)
Here is the macro itself and the examples of its usage in the generic code.
If it will turn out to be useful, I can prepare the set of patches to
inject in into arch-specific code, drivers, networking, etc.
Signed-off-by: Pavel Emelianov <xemul@openvz.org>
Signed-off-by: Kirill Korotaev <dev@openvz.org>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Zach Brown <zach.brown@oracle.com>
Cc: Davide Libenzi <davidel@xmailserver.org>
Cc: John McCutchan <ttb@tentacle.dhs.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/timer.c')
-rw-r--r-- | kernel/timer.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/timer.c b/kernel/timer.c index ba41af2bb6cc..7a6448340f90 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -629,7 +629,7 @@ static inline void __run_timers(tvec_base_t *base) void (*fn)(unsigned long); unsigned long data; - timer = list_entry(head->next,struct timer_list,entry); + timer = list_first_entry(head, struct timer_list,entry); fn = timer->function; data = timer->data; @@ -1248,7 +1248,7 @@ static void migrate_timer_list(tvec_base_t *new_base, struct list_head *head) struct timer_list *timer; while (!list_empty(head)) { - timer = list_entry(head->next, struct timer_list, entry); + timer = list_first_entry(head, struct timer_list, entry); detach_timer(timer, 0); timer_set_base(timer, new_base); internal_add_timer(new_base, timer); |