The patch titled
ipcns: remove useless get/put while CLONE_NEWIPC
has been added to the -mm tree. Its filename is
ipcns-remove-useless-get-put-while-clone_newipc.patch
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See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
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The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: ipcns: remove useless get/put while CLONE_NEWIPC
From: Alexey Dobriyan <adobriyan@xxxxxxxxx>
copy_ipcs() doesn't actually copy anything. If new ipcns is created, it's
created from scratch, in this case get/put on old ipcns isn't needed.
Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Acked-by: Serge Hallyn <serue@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
ipc/namespace.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff -puN ipc/namespace.c~ipcns-remove-useless-get-put-while-clone_newipc ipc/namespace.c
--- a/ipc/namespace.c~ipcns-remove-useless-get-put-while-clone_newipc
+++ a/ipc/namespace.c
@@ -50,15 +50,11 @@ struct ipc_namespace *copy_ipcs(unsigned
{
struct ipc_namespace *new_ns;
- BUG_ON(!ns);
- get_ipc_ns(ns);
-
if (!(flags & CLONE_NEWIPC))
- return ns;
+ return get_ipc_ns(ns);
new_ns = clone_ipc_ns(ns);
- put_ipc_ns(ns);
return new_ns;
}
_
Patches currently in -mm which might be from adobriyan@xxxxxxxxx are
origin.patch
fs-remove-sparse-errors-in-proc_devtreec.patch
procfs-make-errno-values-consistent-when-open-pident-vs-exit2-race-occurs.patch
mm-consolidate-init_mm-definition.patch
mm-consolidate-init_mm-definition-fix.patch
pagemap-document-clarifications.patch
pagemap-documentation-9-more-exported-page-flags.patch
mm-introduce-pagehuge-for-testing-huge-gigantic-pages.patch
proc-kpagecount-kpageflags-code-cleanup.patch
proc-export-more-page-flags-in-proc-kpageflags.patch
softirq-introduce-statistics-for-softirq.patch
proc-export-statistics-for-softirq-to-proc.patch
proc-update-document-for-proc-softirqs-and-proc-stat.patch
utsns-extract-creeate_uts_ns.patch
ipcns-remove-useless-get-put-while-clone_newipc.patch
ipcns-2-2-extract-create_ipc_ns.patch
pidns-1-2-make-create_pid_namespace-accept-parent-pidns.patch
pidns-2-2-rewrite-copy_pid_ns.patch
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