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authorIngo Molnar <mingo@kernel.org>2016-06-27 09:35:02 (GMT)
committerIngo Molnar <mingo@kernel.org>2016-06-27 09:35:02 (GMT)
commit630741fb60ac4e286f5396403c0d864d924c02bc (patch)
tree16eb952c3653386c6d1ad99e369615dfe65e4d67 /kernel/kcov.c
parent807e5b80687c06715d62df51a5473b231e3e8b15 (diff)
parentea1dc6fc6242f991656e35e2ed3d90ec1cd13418 (diff)
downloadlinux-630741fb60ac4e286f5396403c0d864d924c02bc.tar.xz
Merge branch 'sched/urgent' into sched/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/kcov.c')
-rw-r--r--kernel/kcov.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/kernel/kcov.c b/kernel/kcov.c
index a02f2dd..8d44b3f 100644
--- a/kernel/kcov.c
+++ b/kernel/kcov.c
@@ -264,7 +264,12 @@ static const struct file_operations kcov_fops = {
static int __init kcov_init(void)
{
- if (!debugfs_create_file("kcov", 0600, NULL, NULL, &kcov_fops)) {
+ /*
+ * The kcov debugfs file won't ever get removed and thus,
+ * there is no need to protect it against removal races. The
+ * use of debugfs_create_file_unsafe() is actually safe here.
+ */
+ if (!debugfs_create_file_unsafe("kcov", 0600, NULL, NULL, &kcov_fops)) {
pr_err("failed to create kcov in debugfs\n");
return -ENOMEM;
}