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authorLinus Torvalds <torvalds@linux-foundation.org>2015-10-23 22:10:51 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2015-10-23 22:10:51 +0900
commit9f30931a5482d66710210dafe9b4f2cc92320540 (patch)
tree1b3405d12a1b197d73473ea77c8fb712a632f55c /kernel
parenta2c01ed5d46f0686c52272e09f7d2f5be9f573fd (diff)
parentb67de018b37a97548645a879c627d4188518e907 (diff)
downloadlinux-9f30931a5482d66710210dafe9b4f2cc92320540.tar.bz2
Merge branch 'akpm' (patches from Andrew)
Merge fixes from Andrew Morton: "9 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: ocfs2/dlm: unlock lockres spinlock before dlm_lockres_put fault-inject: fix inverted interval/probability values in printk lib/Kconfig.debug: disable -Wframe-larger-than warnings with KASAN=y mm: make sendfile(2) killable thp: use is_zero_pfn() only after pte_present() check mailmap: update Javier Martinez Canillas' email MAINTAINERS: add Sergey as zsmalloc reviewer mm: cma: fix incorrect type conversion for size during dma allocation kmod: don't run async usermode helper as a child of kworker thread
Diffstat (limited to 'kernel')
-rw-r--r--kernel/kmod.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/kernel/kmod.c b/kernel/kmod.c
index da98d0593de2..0277d1216f80 100644
--- a/kernel/kmod.c
+++ b/kernel/kmod.c
@@ -327,9 +327,13 @@ static void call_usermodehelper_exec_work(struct work_struct *work)
call_usermodehelper_exec_sync(sub_info);
} else {
pid_t pid;
-
+ /*
+ * Use CLONE_PARENT to reparent it to kthreadd; we do not
+ * want to pollute current->children, and we need a parent
+ * that always ignores SIGCHLD to ensure auto-reaping.
+ */
pid = kernel_thread(call_usermodehelper_exec_async, sub_info,
- SIGCHLD);
+ CLONE_PARENT | SIGCHLD);
if (pid < 0) {
sub_info->retval = pid;
umh_complete(sub_info);