diff options
author | Qian Cai <[email protected]> | 2020-04-01 21:04:37 -0700 |
---|---|---|
committer | Linus Torvalds <[email protected]> | 2020-04-02 09:35:26 -0700 |
commit | 5f2d5026be67691af26327ab722db4dacaacf399 (patch) | |
tree | c239853643aec13d59096484df47fdc8f9cd8400 /scripts/gcc-plugins/cyc_complexity_plugin.c | |
parent | b0d14fc43d39203ae025f20ef4d5d25d9ccf4be1 (diff) |
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 <[email protected]>
Signed-off-by: Qian Cai <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Acked-by: Marco Elver <[email protected]>
Acked-by: Catalin Marinas <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'scripts/gcc-plugins/cyc_complexity_plugin.c')
0 files changed, 0 insertions, 0 deletions