diff options
| author | Heiko Carstens <hca@linux.ibm.com> | 2026-05-26 07:57:01 +0200 |
|---|---|---|
| committer | Alexander Gordeev <agordeev@linux.ibm.com> | 2026-06-03 15:32:47 +0200 |
| commit | 9858c19a66386cb2553480643f2d4565993d1cd8 (patch) | |
| tree | 24483ceee1ec27829d198e20fa853a5e6367795b /scripts | |
| parent | ee8cefbfb0718bfe1460cf2ba72722c51f6789eb (diff) | |
s390/percpu: Provide arch_this_cpu_read() implementation
Provide an s390 specific implementation of arch_this_cpu_read() instead
of the generic variant. The generic variant uses preempt_disable() /
preempt_enable() pair and READ_ONCE().
Get rid of the preempt_disable() / preempt_enable() pairs by providing an
own variant which makes use of the new percpu code section infrastructure.
With this the text size of the kernel image is reduced by ~1k
(defconfig). Also 87 generated preempt_schedule_notrace() function
calls within the kernel image (modules not counted) are removed.
Acked-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Diffstat (limited to 'scripts')
0 files changed, 0 insertions, 0 deletions