if dev->d_flags is POLICY_1, the circbuf cannot be initialized incorrectly. We determine whether the circbuf should be initialized based on first reference on device and d_buffer is NULL Signed-off-by: wangchen <wangchen41@xiaomi.com>
if dev->d_flags is POLICY_1, the circbuf cannot be initialized incorrectly. We determine whether the circbuf should be initialized based on first reference on device and d_buffer is NULL Signed-off-by: wangchen <wangchen41@xiaomi.com>