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| author | Qian Cai <cai@lca.pw> | 2020-04-02 07:04:37 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-04-02 19:35:26 +0300 |
| commit | 5f2d5026be67691af26327ab722db4dacaacf399 (patch) | |
| tree | c239853643aec13d59096484df47fdc8f9cd8400 /tools/perf/scripts/python/net_dropmonitor.py | |
| parent | b0d14fc43d39203ae025f20ef4d5d25d9ccf4be1 (diff) | |
| download | linux-5f2d5026be67691af26327ab722db4dacaacf399.tar.xz | |
mm/Makefile: disable KCSAN for kmemleak
Kmemleak could scan task stacks while plain writes happens to those stack
variables which could results in data races. For example, in
sys_rt_sigaction and do_sigaction(), it could have plain writes in a
32-byte size. Since the kmemleak does not care about the actual values of
a non-pointer and all do_sigaction() call sites only copy to stack
variables, just disable KCSAN for kmemleak to avoid annotating anything
outside Kmemleak just because Kmemleak scans everything.
Suggested-by: Marco Elver <elver@google.com>
Signed-off-by: Qian Cai <cai@lca.pw>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Marco Elver <elver@google.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: http://lkml.kernel.org/r/1583263716-25150-1-git-send-email-cai@lca.pw
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/perf/scripts/python/net_dropmonitor.py')
0 files changed, 0 insertions, 0 deletions