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ARM: 9158/1: leave it to core code to manage thread_info::cpu

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Since commit bcf9033e54 ("sched: move CPU field back into thread_info
if THREAD_INFO_IN_TASK=y"), the CPU field in thread_info went back to
being managed by the core code, so we no longer have to keep it in sync
in arch code.

While at it, mark THREAD_INFO_IN_TASK as done for ARM in the
documentation.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
This commit is contained in:
Ard Biesheuvel
2021-11-15 08:57:12 +01:00
committed by Russell King (Oracle)
parent 251cc826be
commit 4a2f57ac7d
3 changed files with 1 additions and 18 deletions
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3
arch/arm/kernel/smp.c
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@@ -154,9 +154,6 @@ int __cpu_up(unsigned int cpu, struct task_struct *idle)
secondary_data.swapper_pg_dir = get_arch_pgd(swapper_pg_dir);
#endif
secondary_data.task = idle;
if (IS_ENABLED(CONFIG_THREAD_INFO_IN_TASK))
task_thread_info(idle)->cpu = cpu;
sync_cache_w(&secondary_data);
/*