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| author | Pavankumar Kondeti <pkondeti@codeaurora.org> | 2016-12-09 21:50:17 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-07-21 08:12:23 +0200 |
| commit | da89aa5b8c67b130181e56b3382506a319818091 (patch) | |
| tree | 9a505151d76c119aefd6e965c7a988cc3df6eedd /Makefile | |
| parent | 9abcd35a85b1658ed30fcdc706db2f49ada66b65 (diff) | |
| download | linux-da89aa5b8c67b130181e56b3382506a319818091.tar.gz linux-da89aa5b8c67b130181e56b3382506a319818091.tar.bz2 linux-da89aa5b8c67b130181e56b3382506a319818091.zip | |
tracing: Use SOFTIRQ_OFFSET for softirq dectection for more accurate results
commit c59f29cb144a6a0dfac16ede9dc8eafc02dc56ca upstream.
The 's' flag is supposed to indicate that a softirq is running. This
can be detected by testing the preempt_count with SOFTIRQ_OFFSET.
The current code tests the preempt_count with SOFTIRQ_MASK, which
would be true even when softirqs are disabled but not serving a
softirq.
Link: http://lkml.kernel.org/r/1481300417-3564-1-git-send-email-pkondeti@codeaurora.org
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Makefile')
0 files changed, 0 insertions, 0 deletions