linux-kernel - Query: Notifier support for callback profiling

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Message-ID: <bf4d4eab-f64e-6ff4-2c6b-709d7c7835dd@codeaurora.org>
Date:   Fri, 19 May 2017 19:13:26 +0530
From:   "Kohli, Gaurav" <gkohli@...eaurora.org>
To:     linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: Query: Notifier support for callback profiling

Hi ,

Can we profile driver specific notifier callback from Linux notifier.
Sometimes we need to debug which callback is taking more time or where 
it is stuck.
If kernel/notifier.c provide generic mechanism to profile callbacks that 
will
save profiling individual callbacks.

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