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| author | Kees Cook <keescook@chromium.org> | 2021-09-30 19:36:44 +0200 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2021-09-30 19:36:44 +0200 |
| commit | d9f2a53f64a6fcae994457e64a7124d2a3efd323 (patch) | |
| tree | 858e12d8312831e089a2babc077ced917c27f47d /arch/riscv/kernel/head.S | |
| parent | Linux 5.15-rc2 (diff) | |
| parent | riscv: rely on core code to keep thread_info::cpu updated (diff) | |
| download | linux-d9f2a53f64a6fcae994457e64a7124d2a3efd323.tar.xz linux-d9f2a53f64a6fcae994457e64a7124d2a3efd323.zip | |
Merge tag 'pr-move-task-cpu-to-ti' of git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git
Cross-architecture update to move task_struct::cpu back into thread_info
on arm64, x86, s390, powerpc, and riscv. All Acked by arch maintainers.
Quoting Ard Biesheuvel:
"Move task_struct::cpu back into thread_info
Keeping CPU in task_struct is problematic for architectures that define
raw_smp_processor_id() in terms of this field, as it requires
linux/sched.h to be included, which causes a lot of pain in terms of
circular dependencies (aka 'header soup')
This series moves it back into thread_info (where it came from) for all
architectures that enable THREAD_INFO_IN_TASK, addressing the header
soup issue as well as some pointless differences in the implementations
of task_cpu() and set_task_cpu()."
Diffstat (limited to 'arch/riscv/kernel/head.S')
| -rw-r--r-- | arch/riscv/kernel/head.S | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/riscv/kernel/head.S b/arch/riscv/kernel/head.S index fce5184b22c3..d5ec30ef6f5d 100644 --- a/arch/riscv/kernel/head.S +++ b/arch/riscv/kernel/head.S @@ -317,7 +317,6 @@ clear_bss_done: call setup_trap_vector /* Restore C environment */ la tp, init_task - sw zero, TASK_TI_CPU(tp) la sp, init_thread_union + THREAD_SIZE #ifdef CONFIG_KASAN |