kernel/linux.git/include/asm-generic/bitops/instrumented-atomic.h, branch v7.1Linux kernel stable tree (mirror)https://git.radix-linux.su/kernel/linux.git/atom?h=v7.12026-03-23T17:33:51+00:00asm-generic/bitops: Fix a comment typo in instrumented-atomic.h2026-03-23T17:33:51+00:00Kai Huangkai.huang@intel.com2026-03-20T07:59:38+00:00urn:sha1:f3e9c1138e9d20677ed085107cd2872d5218e3b1
The comment after the '#endif' at the end of the instrumented-atomic.h
is a typo. The "NON_ATOMIC" part should be "ATOMIC". Fix it.
Signed-off-by: Kai Huang <kai.huang@intel.com>
Signed-off-by: Yury Norov <ynorov@nvidia.com>
asm-generic/bitops: Always inline all bit manipulation helpers2022-01-25T21:30:28+00:00Borislav Petkovbp@suse.de2022-01-13T15:53:56+00:00urn:sha1:acb13ea0baf8db8d05a3910c06e997c90825faad
Make it consistent with the atomic/atomic-instrumented.h helpers.
And defconfig size is actually going down!
text data bss dec hex filename
22352096 8213152 1917164 32482412 1efa46c vmlinux.x86-64.defconfig.before
22350551 8213184 1917164 32480899 1ef9e83 vmlinux.x86-64.defconfig.after
Suggested-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Marco Elver <elver@google.com>
Link: https://lore.kernel.org/r/20220113155357.4706-2-bp@alien8.de
asm-generic/bitops, kcsan: Add instrumentation for barriers2021-12-10T00:42:28+00:00Marco Elverelver@google.com2021-11-30T11:44:25+00:00urn:sha1:04def1b9b4a3d27ef80e7fbf1b17f1897beb1ce4
Adds the required KCSAN instrumentation for barriers of atomic bitops.
Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
asm-generic/bitops: Use instrument_read_write() where appropriate2020-08-24T22:09:59+00:00Marco Elverelver@google.com2020-07-24T07:00:07+00:00urn:sha1:b159eeccb75a7916278d95e2ff5540e670682748
Use the new instrument_read_write() where appropriate.
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
asm-generic, kcsan: Add KCSAN instrumentation for bitops2020-03-21T08:41:46+00:00Marco Elverelver@google.com2020-01-21T16:05:10+00:00urn:sha1:27f937cc810aef63b0752f5bfbf383390dd076a1
Add explicit KCSAN checks for bitops.
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
kasan: support instrumented bitops combined with generic bitops2019-11-07T02:15:39+00:00Daniel Axtensdja@axtens.net2019-08-20T02:49:40+00:00urn:sha1:81d2c6f81996e01fbcd2b5aeefbb519e21c806e9
Currently bitops-instrumented.h assumes that the architecture provides
atomic, non-atomic and locking bitops (e.g. both set_bit and __set_bit).
This is true on x86 and s390, but is not always true: there is a
generic bitops/non-atomic.h header that provides generic non-atomic
operations, and also a generic bitops/lock.h for locking operations.
powerpc uses the generic non-atomic version, so it does not have it's
own e.g. __set_bit that could be renamed arch___set_bit.
Split up bitops-instrumented.h to mirror the atomic/non-atomic/lock
split. This allows arches to only include the headers where they
have arch-specific versions to rename. Update x86 and s390.
(The generic operations are automatically instrumented because they're
written in C, not asm.)
Suggested-by: Christophe Leroy <christophe.leroy@c-s.fr>
Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Daniel Axtens <dja@axtens.net>
Acked-by: Marco Elver <elver@google.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190820024941.12640-1-dja@axtens.net