By marking logbuf_lock and console_owner_lock as terminal locks, it reduces the performance overhead when those locks are used with lockdep enabled.
Signed-off-by: Waiman Long <long...@redhat.com> --- kernel/printk/printk.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c index 1b2a029..bdbbe31 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -367,7 +367,7 @@ __packed __aligned(4) * within the scheduler's rq lock. It must be released before calling * console_unlock() or anything else that might wake up a process. */ -DEFINE_RAW_SPINLOCK(logbuf_lock); +DEFINE_RAW_TERMINAL_SPINLOCK(logbuf_lock); /* * Helper macros to lock/unlock logbuf_lock and switch between @@ -1568,7 +1568,7 @@ int do_syslog(int type, char __user *buf, int len, int source) }; #endif -static DEFINE_RAW_SPINLOCK(console_owner_lock); +static DEFINE_RAW_TERMINAL_SPINLOCK(console_owner_lock); static struct task_struct *console_owner; static bool console_waiter; -- 1.8.3.1 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
