The patch titled
Subject: ipc: remove msg handling from queue scan
has been added to the -mm tree. Its filename is
ipc-remove-msg-handling-from-queue-scan.patch
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------------------------------------------------------
From: Peter Hurley <peter@xxxxxxxxxxxxxxxxxx>
Subject: 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@xxxxxxxxxxxxxxxxxx>
Acked-by: Stanislav Kinsbursky <skinsbursky@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
ipc/msg.c | 14 ++++----------
1 file changed, 4 insertions(+), 10 deletions(-)
diff -puN ipc/msg.c~ipc-remove-msg-handling-from-queue-scan ipc/msg.c
--- a/ipc/msg.c~ipc-remove-msg-handling-from-queue-scan
+++ a/ipc/msg.c
@@ -862,16 +862,8 @@ long do_msgrcv(int msqid, void __user *b
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;
- }
} else
break;
msg_counter++;
@@ -891,8 +883,10 @@ long do_msgrcv(int msqid, void __user *b
* 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();
_
Patches currently in -mm which might be from peter@xxxxxxxxxxxxxxxxxx are
origin.patch
ipc-fix-potential-oops-when-src-msg-4k-w-msg_copy.patch
ipc-dont-allocate-a-copy-larger-than-max.patch
ipc-clamp-with-min.patch
ipc-separate-msg-allocation-from-userspace-copy.patch
ipc-tighten-msg-copy-loops.patch
ipc-set-efault-as-default-error-in-load_msg.patch
ipc-remove-msg-handling-from-queue-scan.patch
ipc-implement-msg_copy-as-a-new-receive-mode.patch
ipc-simplify-msg-list-search.patch
ipc-refactor-msg-list-search-into-separate-function.patch
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