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| author | Ingo Molnar <mingo@kernel.org> | 2018-12-17 18:48:25 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2018-12-17 18:48:25 +0100 |
| commit | 02117e42db7470e59910088b2b0ee42d581d2651 (patch) | |
| tree | 7734414b46fb72ffc708ac924f3b6b69de1f0d4c /arch/x86/kernel/process_64.c | |
| parent | ba6f508d0ec4adb09f0a939af6d5e19cdfa8667d (diff) | |
| parent | 721066dfd4d5c0fee5772c777d6930d0f423b4eb (diff) | |
| download | linux-02117e42db7470e59910088b2b0ee42d581d2651.tar.bz2 | |
Merge branch 'x86/urgent' into x86/mm, to pick up dependent fix
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel/process_64.c')
| -rw-r--r-- | arch/x86/kernel/process_64.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index 2b8e6324fa20..54a1c6965099 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -60,6 +60,8 @@ #include <asm/unistd_32_ia32.h> #endif +#include "process.h" + /* Prints also some state that isn't saved in the pt_regs */ void __show_regs(struct pt_regs *regs, enum show_regs_mode mode) { @@ -552,7 +554,6 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p) struct fpu *prev_fpu = &prev->fpu; struct fpu *next_fpu = &next->fpu; int cpu = smp_processor_id(); - struct tss_struct *tss = &per_cpu(cpu_tss_rw, cpu); WARN_ON_ONCE(IS_ENABLED(CONFIG_DEBUG_ENTRY) && this_cpu_read(irq_count) != -1); @@ -616,12 +617,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p) /* Reload sp0. */ update_task_stack(next_p); - /* - * Now maybe reload the debug registers and handle I/O bitmaps - */ - if (unlikely(task_thread_info(next_p)->flags & _TIF_WORK_CTXSW_NEXT || - task_thread_info(prev_p)->flags & _TIF_WORK_CTXSW_PREV)) - __switch_to_xtra(prev_p, next_p, tss); + switch_to_extra(prev_p, next_p); #ifdef CONFIG_XEN_PV /* |