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Date: Thu, 31 Jul 2014 09:10:17 -0700 From: tip-bot for Dave Hansen <tipbot@...or.com> To: linux-tip-commits@...r.kernel.org Cc: linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...nel.org, riel@...hat.com, mgorman@...e.de, tglx@...utronix.de, dave.hansen@...ux.intel.com, hpa@...ux.intel.com Subject: [tip:x86/mm] x86/mm: Unify remote INVLPG code Commit-ID: a23421f111bb256cdbf23dcfe15f35567ab88e98 Gitweb: http://git.kernel.org/tip/a23421f111bb256cdbf23dcfe15f35567ab88e98 Author: Dave Hansen <dave.hansen@...ux.intel.com> AuthorDate: Thu, 31 Jul 2014 08:40:58 -0700 Committer: H. Peter Anvin <hpa@...ux.intel.com> CommitDate: Thu, 31 Jul 2014 08:48:51 -0700 x86/mm: Unify remote INVLPG code There are currently three paths through the remote flush code: 1. full invalidation 2. single page invalidation using invlpg 3. ranged invalidation using invlpg This takes 2 and 3 and combines them in to a single path by making the single-page one just be the start and end be start plus a single page. This makes placement of our tracepoint easier. Signed-off-by: Dave Hansen <dave.hansen@...ux.intel.com> Link: http://lkml.kernel.org/r/20140731154058.E0F90408@viggo.jf.intel.com Cc: Rik van Riel <riel@...hat.com> Cc: Mel Gorman <mgorman@...e.de> Signed-off-by: H. Peter Anvin <hpa@...ux.intel.com> --- arch/x86/mm/tlb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c index ae584d0..add5a0f 100644 --- a/arch/x86/mm/tlb.c +++ b/arch/x86/mm/tlb.c @@ -102,13 +102,13 @@ static void flush_tlb_func(void *info) if (f->flush_mm != this_cpu_read(cpu_tlbstate.active_mm)) return; + if (!f->flush_end) + f->flush_end = f->flush_start + PAGE_SIZE; count_vm_tlb_event(NR_TLB_REMOTE_FLUSH_RECEIVED); if (this_cpu_read(cpu_tlbstate.state) == TLBSTATE_OK) { if (f->flush_end == TLB_FLUSH_ALL) local_flush_tlb(); - else if (!f->flush_end) - __flush_tlb_single(f->flush_start); else { unsigned long addr; addr = f->flush_start; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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