diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.9.21/0001-x86-mm-Remove-flush_tlb-and-flush_tlb_current_task.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.9.21/0001-x86-mm-Remove-flush_tlb-and-flush_tlb_current_task.patch | 105 |
1 files changed, 0 insertions, 105 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.9.21/0001-x86-mm-Remove-flush_tlb-and-flush_tlb_current_task.patch b/common/recipes-kernel/linux/linux-yocto-4.9.21/0001-x86-mm-Remove-flush_tlb-and-flush_tlb_current_task.patch deleted file mode 100644 index db1a2245..00000000 --- a/common/recipes-kernel/linux/linux-yocto-4.9.21/0001-x86-mm-Remove-flush_tlb-and-flush_tlb_current_task.patch +++ /dev/null @@ -1,105 +0,0 @@ -From 0b113edb84e5133f4844eeec2889faced402a41c Mon Sep 17 00:00:00 2001 -From: Andy Lutomirski <luto@kernel.org> -Date: Sat, 22 Apr 2017 00:01:20 -0700 -Subject: [PATCH 01/14] x86/mm: Remove flush_tlb() and flush_tlb_current_task() - -commit 29961b59a51f8c6838a26a45e871a7ed6771809b upstream. - -I was trying to figure out what how flush_tlb_current_task() would -possibly work correctly if current->mm != current->active_mm, but I -realized I could spare myself the effort: it has no callers except -the unused flush_tlb() macro. - -Signed-off-by: Andy Lutomirski <luto@kernel.org> -Cc: Andrew Morton <akpm@linux-foundation.org> -Cc: Borislav Petkov <bp@alien8.de> -Cc: Brian Gerst <brgerst@gmail.com> -Cc: Dave Hansen <dave.hansen@intel.com> -Cc: Denys Vlasenko <dvlasenk@redhat.com> -Cc: H. Peter Anvin <hpa@zytor.com> -Cc: Josh Poimboeuf <jpoimboe@redhat.com> -Cc: Linus Torvalds <torvalds@linux-foundation.org> -Cc: Michal Hocko <mhocko@suse.com> -Cc: Nadav Amit <namit@vmware.com> -Cc: Peter Zijlstra <peterz@infradead.org> -Cc: Rik van Riel <riel@redhat.com> -Cc: Thomas Gleixner <tglx@linutronix.de> -Link: http://lkml.kernel.org/r/e52d64c11690f85e9f1d69d7b48cc2269cd2e94b.1492844372.git.luto@kernel.org -Signed-off-by: Ingo Molnar <mingo@kernel.org> -Cc: Hugh Dickins <hughd@google.com> -Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ---- - arch/x86/include/asm/tlbflush.h | 9 --------- - arch/x86/mm/tlb.c | 17 ----------------- - 2 files changed, 26 deletions(-) - -diff --git a/arch/x86/include/asm/tlbflush.h b/arch/x86/include/asm/tlbflush.h -index 183af59..db8952a 100644 ---- a/arch/x86/include/asm/tlbflush.h -+++ b/arch/x86/include/asm/tlbflush.h -@@ -261,7 +261,6 @@ static inline void __flush_tlb_one(unsigned long addr) - /* - * TLB flushing: - * -- * - flush_tlb() flushes the current mm struct TLBs - * - flush_tlb_all() flushes all processes TLBs - * - flush_tlb_mm(mm) flushes the specified mm context TLB's - * - flush_tlb_page(vma, vmaddr) flushes one page -@@ -293,11 +292,6 @@ static inline void flush_tlb_all(void) - __flush_tlb_all(); - } - --static inline void flush_tlb(void) --{ -- __flush_tlb_up(); --} -- - static inline void local_flush_tlb(void) - { - __flush_tlb_up(); -@@ -359,14 +353,11 @@ static inline void flush_tlb_kernel_range(unsigned long start, - flush_tlb_mm_range(vma->vm_mm, start, end, vma->vm_flags) - - extern void flush_tlb_all(void); --extern void flush_tlb_current_task(void); - extern void flush_tlb_page(struct vm_area_struct *, unsigned long); - extern void flush_tlb_mm_range(struct mm_struct *mm, unsigned long start, - unsigned long end, unsigned long vmflag); - extern void flush_tlb_kernel_range(unsigned long start, unsigned long end); - --#define flush_tlb() flush_tlb_current_task() -- - void native_flush_tlb_others(const struct cpumask *cpumask, - struct mm_struct *mm, - unsigned long start, unsigned long end); -diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c -index 0cf44ac..c045051 100644 ---- a/arch/x86/mm/tlb.c -+++ b/arch/x86/mm/tlb.c -@@ -320,23 +320,6 @@ void native_flush_tlb_others(const struct cpumask *cpumask, - smp_call_function_many(cpumask, flush_tlb_func, &info, 1); - } - --void flush_tlb_current_task(void) --{ -- struct mm_struct *mm = current->mm; -- -- preempt_disable(); -- -- count_vm_tlb_event(NR_TLB_LOCAL_FLUSH_ALL); -- -- /* This is an implicit full barrier that synchronizes with switch_mm. */ -- local_flush_tlb(); -- -- trace_tlb_flush(TLB_LOCAL_SHOOTDOWN, TLB_FLUSH_ALL); -- if (cpumask_any_but(mm_cpumask(mm), smp_processor_id()) < nr_cpu_ids) -- flush_tlb_others(mm_cpumask(mm), mm, 0UL, TLB_FLUSH_ALL); -- preempt_enable(); --} -- - /* - * See Documentation/x86/tlb.txt for details. We choose 33 - * because it is large enough to cover the vast majority (at --- -2.7.4 - |