summaryrefslogtreecommitdiff
path: root/include/linux/key.h
diff options
context:
space:
mode:
authorDavid Howells <dhowells@redhat.com>2013-09-24 13:35:16 +0400
committerDavid Howells <dhowells@redhat.com>2013-09-24 13:35:16 +0400
commitccc3e6d9c9aea07a0b60b2b0bfc5b05a704b66d5 (patch)
treed111175934b1454fa275fe056f8c6d320e504b01 /include/linux/key.h
parentd0a059cac6523b23ad7d743dec8783705aab1668 (diff)
downloadlinux-ccc3e6d9c9aea07a0b60b2b0bfc5b05a704b66d5.tar.xz
KEYS: Define a __key_get() wrapper to use rather than atomic_inc()
Define a __key_get() wrapper to use rather than atomic_inc() on the key usage count as this makes it easier to hook in refcount error debugging. Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'include/linux/key.h')
-rw-r--r--include/linux/key.h10
1 files changed, 7 insertions, 3 deletions
diff --git a/include/linux/key.h b/include/linux/key.h
index d573e820a23d..ef596c7af585 100644
--- a/include/linux/key.h
+++ b/include/linux/key.h
@@ -219,13 +219,17 @@ extern void key_revoke(struct key *key);
extern void key_invalidate(struct key *key);
extern void key_put(struct key *key);
-static inline struct key *key_get(struct key *key)
+static inline struct key *__key_get(struct key *key)
{
- if (key)
- atomic_inc(&key->usage);
+ atomic_inc(&key->usage);
return key;
}
+static inline struct key *key_get(struct key *key)
+{
+ return key ? __key_get(key) : key;
+}
+
static inline void key_ref_put(key_ref_t key_ref)
{
key_put(key_ref_to_ptr(key_ref));