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authorIngo Molnar <mingo@kernel.org>2016-06-27 11:20:46 +0200
committerIngo Molnar <mingo@kernel.org>2016-06-27 11:20:46 +0200
commit8114e90ea4deafc7c75c7b343225b485c21b6706 (patch)
tree046c9cd4967e2ea56eab9dcaf6ca6f601fa3deda /kernel/kcov.c
parent9840b1ae45876bcca41b64007ac4a56a7cd14c73 (diff)
parent4c2e07c6a29e0129e975727b9f57eede813eea85 (diff)
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Merge tag 'v4.7-rc5' into perf/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 a02f2dddd1d7..8d44b3fea9d0 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;
}