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authorPeter Hurley <peter@hurleysoftware.com>2013-04-30 19:14:59 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-05-01 08:12:57 -0700
commitd076ac9112797884c0be35f4c93c1517aa352c0c (patch)
tree5a39ceeebedd90e3bd4d567449e90678c932ab04 /ipc
parent8ac6ed5857c8d583e0dc2ab2165966ab143930ad (diff)
downloadkernel-d076ac9112797884c0be35f4c93c1517aa352c0c.tar.gz
ipc: simplify msg list search
Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Acked-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'ipc')
-rw-r--r--ipc/msg.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/ipc/msg.c b/ipc/msg.c
index 7c209b4f5e38..a92275023134 100644
--- a/ipc/msg.c
+++ b/ipc/msg.c
@@ -836,7 +836,7 @@ long do_msgrcv(int msqid, void __user *buf, size_t bufsz, long msgtyp,
for (;;) {
struct msg_receiver msr_d;
- struct list_head *tmp;
+ struct msg_msg *walk_msg;
long msg_counter = 0;
msg = ERR_PTR(-EACCES);
@@ -844,11 +844,8 @@ long do_msgrcv(int msqid, void __user *buf, size_t bufsz, long msgtyp,
goto out_unlock;
msg = ERR_PTR(-EAGAIN);
- tmp = msq->q_messages.next;
- while (tmp != &msq->q_messages) {
- struct msg_msg *walk_msg;
+ list_for_each_entry(walk_msg, &msq->q_messages, m_list) {
- walk_msg = list_entry(tmp, struct msg_msg, m_list);
if (testmsg(walk_msg, msgtyp, mode) &&
!security_msg_queue_msgrcv(msq, walk_msg, current,
msgtyp, mode)) {
@@ -865,7 +862,6 @@ long do_msgrcv(int msqid, void __user *buf, size_t bufsz, long msgtyp,
break;
msg_counter++;
}
- tmp = tmp->next;
}
if (!IS_ERR(msg)) {
/*