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x86: Reclaim TIF_IA32 and TIF_X32
Now that these flags are no longer used, reclaim those TIF bits. Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20201004032536.1229030-11-krisman@collabora.com
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@ -91,7 +91,6 @@ struct thread_info {
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#define TIF_NEED_FPU_LOAD 14 /* load FPU on return to userspace */
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#define TIF_NOCPUID 15 /* CPUID is not accessible in userland */
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#define TIF_NOTSC 16 /* TSC is not accessible in userland */
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#define TIF_IA32 17 /* IA32 compatibility process */
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#define TIF_SLD 18 /* Restore split lock detection on context switch */
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#define TIF_MEMDIE 20 /* is terminating due to OOM killer */
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#define TIF_POLLING_NRFLAG 21 /* idle is polling for TIF_NEED_RESCHED */
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@ -101,7 +100,6 @@ struct thread_info {
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#define TIF_LAZY_MMU_UPDATES 27 /* task is updating the mmu lazily */
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#define TIF_SYSCALL_TRACEPOINT 28 /* syscall tracepoint instrumentation */
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#define TIF_ADDR32 29 /* 32-bit address space on 64 bits */
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#define TIF_X32 30 /* 32-bit native x86-64 binary */
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#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
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#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
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@ -120,7 +118,6 @@ struct thread_info {
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#define _TIF_NEED_FPU_LOAD (1 << TIF_NEED_FPU_LOAD)
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#define _TIF_NOCPUID (1 << TIF_NOCPUID)
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#define _TIF_NOTSC (1 << TIF_NOTSC)
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#define _TIF_IA32 (1 << TIF_IA32)
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#define _TIF_SLD (1 << TIF_SLD)
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#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
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#define _TIF_IO_BITMAP (1 << TIF_IO_BITMAP)
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@ -129,7 +126,6 @@ struct thread_info {
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#define _TIF_LAZY_MMU_UPDATES (1 << TIF_LAZY_MMU_UPDATES)
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#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
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#define _TIF_ADDR32 (1 << TIF_ADDR32)
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#define _TIF_X32 (1 << TIF_X32)
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/* flags to check in __switch_to() */
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#define _TIF_WORK_CTXSW_BASE \
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@ -640,9 +640,7 @@ void set_personality_64bit(void)
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/* inherit personality from parent */
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/* Make sure to be in 64bit mode */
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clear_thread_flag(TIF_IA32);
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clear_thread_flag(TIF_ADDR32);
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clear_thread_flag(TIF_X32);
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/* Pretend that this comes from a 64bit execve */
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task_pt_regs(current)->orig_ax = __NR_execve;
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current_thread_info()->status &= ~TS_COMPAT;
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@ -659,8 +657,6 @@ void set_personality_64bit(void)
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static void __set_personality_x32(void)
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{
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#ifdef CONFIG_X86_X32
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clear_thread_flag(TIF_IA32);
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set_thread_flag(TIF_X32);
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if (current->mm)
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current->mm->context.flags = 0;
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@ -681,8 +677,6 @@ static void __set_personality_x32(void)
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static void __set_personality_ia32(void)
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{
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#ifdef CONFIG_IA32_EMULATION
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set_thread_flag(TIF_IA32);
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clear_thread_flag(TIF_X32);
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if (current->mm) {
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/*
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* uprobes applied to this MM need to know this and
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