summaryrefslogtreecommitdiff
path: root/arch/x86/mm/tlb.c
diff options
context:
space:
mode:
authorDave Hansen <dave.hansen@linux.intel.com>2014-07-31 19:40:58 +0400
committerH. Peter Anvin <hpa@linux.intel.com>2014-07-31 19:48:51 +0400
commita23421f111bb256cdbf23dcfe15f35567ab88e98 (patch)
tree181287ab975772263281de86819eacc30cd278c2 /arch/x86/mm/tlb.c
parent9dfa6dee5355f200cf19528ca7c678ef4007cec5 (diff)
downloadlinux-a23421f111bb256cdbf23dcfe15f35567ab88e98.tar.xz
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@linux.intel.com> Link: http://lkml.kernel.org/r/20140731154058.E0F90408@viggo.jf.intel.com Cc: Rik van Riel <riel@redhat.com> Cc: Mel Gorman <mgorman@suse.de> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/mm/tlb.c')
-rw-r--r--arch/x86/mm/tlb.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
index ae584d09e8b0..add5a0fc3c5f 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;