diff options
| author | Andrey Konovalov <andreyknvl@google.com> | 2016-10-27 17:46:21 -0700 |
|---|---|---|
| committer | Paul Lawrence <paullawrence@google.com> | 2017-12-18 09:41:57 -0800 |
| commit | d1c5c9c2c635018f06f3f0c726f4b9ff2283a406 (patch) | |
| tree | f8e589516f5c757c29eedf5eb9ca70a32bd8f8a5 /kernel/trace/trace_functions_graph.c | |
| parent | f82dbb707f3dcc992acf162af2c9e245a7f151a9 (diff) | |
UPSTREAM: kcov: properly check if we are in an interrupt
in_interrupt() returns a nonzero value when we are either in an
interrupt or have bh disabled via local_bh_disable(). Since we are
interested in only ignoring coverage from actual interrupts, do a proper
check instead of just calling in_interrupt().
As a result of this change, kcov will start to collect coverage from
within local_bh_disable()/local_bh_enable() sections.
Link: http://lkml.kernel.org/r/1476115803-20712-1-git-send-email-andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Nicolai Stange <nicstange@gmail.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: James Morse <james.morse@arm.com>
Cc: Vegard Nossum <vegard.nossum@oracle.com>
Cc: Quentin Casasnovas <quentin.casasnovas@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bug: 64145065
(cherry-picked from b274c0bb394c6a69ac12feac7c2db81f5aff5a55)
Change-Id: I91364ef699f9af0a57959caf65372a6559d7a6b0
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Diffstat (limited to 'kernel/trace/trace_functions_graph.c')
0 files changed, 0 insertions, 0 deletions