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| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2022-01-11 09:51:26 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-01-11 09:51:26 -0800 |
| commit | 1be5bdf8cd5a194d981e65687367b0828c839c37 (patch) | |
| tree | d6560826c211fd7a4ddcc1d45040dab123271df8 /mm | |
| parent | Merge tag 'lkmm.2022.01.09a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu (diff) | |
| parent | kcsan: Only test clear_bit_unlock_is_negative_byte if arch defines it (diff) | |
| download | linux-dev-1be5bdf8cd5a194d981e65687367b0828c839c37.tar.xz linux-dev-1be5bdf8cd5a194d981e65687367b0828c839c37.zip | |
Merge tag 'kcsan.2022.01.09a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull KCSAN updates from Paul McKenney:
"This provides KCSAN fixes and also the ability to take memory barriers
into account for weakly-ordered systems. This last can increase the
probability of detecting certain types of data races"
* tag 'kcsan.2022.01.09a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (29 commits)
kcsan: Only test clear_bit_unlock_is_negative_byte if arch defines it
kcsan: Avoid nested contexts reading inconsistent reorder_access
kcsan: Turn barrier instrumentation into macros
kcsan: Make barrier tests compatible with lockdep
kcsan: Support WEAK_MEMORY with Clang where no objtool support exists
compiler_attributes.h: Add __disable_sanitizer_instrumentation
objtool, kcsan: Remove memory barrier instrumentation from noinstr
objtool, kcsan: Add memory barrier instrumentation to whitelist
sched, kcsan: Enable memory barrier instrumentation
mm, kcsan: Enable barrier instrumentation
x86/qspinlock, kcsan: Instrument barrier of pv_queued_spin_unlock()
x86/barriers, kcsan: Use generic instrumentation for non-smp barriers
asm-generic/bitops, kcsan: Add instrumentation for barriers
locking/atomics, kcsan: Add instrumentation for barriers
locking/barriers, kcsan: Support generic instrumentation
locking/barriers, kcsan: Add instrumentation for barriers
kcsan: selftest: Add test case to check memory barrier instrumentation
kcsan: Ignore GCC 11+ warnings about TSan runtime support
kcsan: test: Add test cases for memory barrier instrumentation
kcsan: test: Match reordered or normal accesses
...
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/Makefile | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/Makefile b/mm/Makefile index d6c0042e3aa0..7919cd7f13f2 100644 --- a/mm/Makefile +++ b/mm/Makefile @@ -15,6 +15,8 @@ KCSAN_SANITIZE_slab_common.o := n KCSAN_SANITIZE_slab.o := n KCSAN_SANITIZE_slub.o := n KCSAN_SANITIZE_page_alloc.o := n +# But enable explicit instrumentation for memory barriers. +KCSAN_INSTRUMENT_BARRIERS := y # These files are disabled because they produce non-interesting and/or # flaky coverage that is not a function of syscall inputs. E.g. slab is out of |