Re: [PATCH] writeback: call writeback tracepoints withoud holding list_lock in wb_writeback()
From: Steven Rostedt <rostedt@goodmis.org>
Date: 2016-02-26 00:09:50
Also in:
linux-mm, lkml
On Thu, 25 Feb 2016 15:54:13 -0800 "Shi, Yang" [off-list ref] wrote:
Can we disable irqs in tracepoints since spin_lock_irqsave is used by kernfs_* functions.
Disabling preemption or irqs is fine a tracepoint. You just can't sleep, which spin_lock_irqsave() would do on the -rt kernel. -- Steve -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>