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From: Ilya Leoshkevich <iii@linux.ibm.com>
To: Heiko Carstens <hca@linux.ibm.com>,
	Vasily Gorbik <gor@linux.ibm.com>,
	Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>,
	Sven Schnelle <svens@linux.ibm.com>,
	Mark Rutland <mark.rutland@arm.com>,
	linux-s390@vger.kernel.org, Ilya Leoshkevich <iii@linux.ibm.com>
Subject: [PATCH 0/2] s390/preempt: mark all functions __always_inline
Date: Wed, 20 Mar 2024 23:47:47 +0100	[thread overview]
Message-ID: <20240320230007.4782-1-iii@linux.ibm.com> (raw)

Hi,

This series marks all functions in asm/atomic_ops.h, asm/atomic.h and
asm/preempt.h __always_inline, and is based on the discussion with Mark
[1]. It's one of the changes required to unbreak the work-in-progress
KMSAN support on s390x after commit 5ec8e8ea8b77 ("mm/sparsemem: fix
race in accessing memory_section->usage"). But it also makes sense on
its own, and may prevent issues with the other sanitizers in the
future.

bloat-o-meter says:

  add/remove: 4/5 grow/shrink: 58/186 up/down: 4408/-6368 (-1960)
  [...]
  Total: Before=29725530, After=29723570, chg -0.01%

Even though there are changes in the code generation, they are
insignificant.

[1] https://lore.kernel.org/lkml/ZfhI0F-vXMMw1GzC@FVFF77S0Q05N/

Best regards,
Ilya

Ilya Leoshkevich (2):
  s390/atomic: mark all functions __always_inline
  s390/preempt: mark all functions __always_inline

 arch/s390/include/asm/atomic.h     | 44 +++++++++++++++---------------
 arch/s390/include/asm/atomic_ops.h | 22 +++++++--------
 arch/s390/include/asm/preempt.h    | 36 ++++++++++++------------
 3 files changed, 51 insertions(+), 51 deletions(-)

-- 
2.44.0


             reply	other threads:[~2024-03-20 23:00 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-20 22:47 Ilya Leoshkevich [this message]
2024-03-20 22:47 ` [PATCH 1/2] s390/atomic: mark all functions __always_inline Ilya Leoshkevich
2024-03-20 22:47 ` [PATCH 2/2] s390/preempt: " Ilya Leoshkevich
2024-03-21  6:45 ` [PATCH 0/2] " Heiko Carstens

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