diff options
| author | Peter Hurley <peter@hurleysoftware.com> | 2013-04-30 19:14:48 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-01 08:12:57 -0700 |
| commit | 852028af861ed6c7ab7e73053dd664eb28e55200 (patch) | |
| tree | 1b3be153ff8d0f9d25e20417a1edc34659cbf88a /ipc | |
| parent | 2b3097a294b6daaf390010de14ca50bfccbc6fb6 (diff) | |
| download | lwn-852028af861ed6c7ab7e73053dd664eb28e55200.tar.gz lwn-852028af861ed6c7ab7e73053dd664eb28e55200.zip | |
ipc: remove msg handling from queue scan
In preparation for refactoring the queue scan into a separate
function, relocate msg copying.
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.c | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/ipc/msg.c b/ipc/msg.c index fede1d06ef30..b46473074662 100644 --- a/ipc/msg.c +++ b/ipc/msg.c @@ -862,16 +862,8 @@ long do_msgrcv(int msqid, void __user *buf, size_t bufsz, long msgtyp, walk_msg->m_type != 1) { msgtyp = walk_msg->m_type - 1; } else if (msgflg & MSG_COPY) { - if (copy_number == msg_counter) { - /* - * Found requested message. - * Copy it. - */ - msg = copy_msg(msg, copy); - if (IS_ERR(msg)) - goto out_unlock; + if (copy_number == msg_counter) break; - } msg = ERR_PTR(-EAGAIN); } else break; @@ -892,8 +884,10 @@ long do_msgrcv(int msqid, void __user *buf, size_t bufsz, long msgtyp, * If we are copying, then do not unlink message and do * not update queue parameters. */ - if (msgflg & MSG_COPY) + if (msgflg & MSG_COPY) { + msg = copy_msg(msg, copy); goto out_unlock; + } list_del(&msg->m_list); msq->q_qnum--; msq->q_rtime = get_seconds(); |