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-rw-r--r--fs/locks.c30
1 files changed, 20 insertions, 10 deletions
diff --git a/fs/locks.c b/fs/locks.c
index 0a4f50dfadfb..b286539d547a 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -160,10 +160,28 @@ EXPORT_SYMBOL_GPL(unlock_flocks);
static struct kmem_cache *filelock_cache __read_mostly;
+static void locks_init_lock_always(struct file_lock *fl)
+{
+ fl->fl_next = NULL;
+ fl->fl_fasync = NULL;
+ fl->fl_owner = NULL;
+ fl->fl_pid = 0;
+ fl->fl_nspid = NULL;
+ fl->fl_file = NULL;
+ fl->fl_flags = 0;
+ fl->fl_type = 0;
+ fl->fl_start = fl->fl_end = 0;
+}
+
/* Allocate an empty lock structure. */
struct file_lock *locks_alloc_lock(void)
{
- return kmem_cache_alloc(filelock_cache, GFP_KERNEL);
+ struct file_lock *fl = kmem_cache_alloc(filelock_cache, GFP_KERNEL);
+
+ if (fl)
+ locks_init_lock_always(fl);
+
+ return fl;
}
EXPORT_SYMBOL_GPL(locks_alloc_lock);
@@ -200,17 +218,9 @@ void locks_init_lock(struct file_lock *fl)
INIT_LIST_HEAD(&fl->fl_link);
INIT_LIST_HEAD(&fl->fl_block);
init_waitqueue_head(&fl->fl_wait);
- fl->fl_next = NULL;
- fl->fl_fasync = NULL;
- fl->fl_owner = NULL;
- fl->fl_pid = 0;
- fl->fl_nspid = NULL;
- fl->fl_file = NULL;
- fl->fl_flags = 0;
- fl->fl_type = 0;
- fl->fl_start = fl->fl_end = 0;
fl->fl_ops = NULL;
fl->fl_lmops = NULL;
+ locks_init_lock_always(fl);
}
EXPORT_SYMBOL(locks_init_lock);