diff options
| author | Dave Hansen <dave.hansen@linux.intel.com> | 2014-07-31 08:40:58 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2014-07-31 08:48:51 -0700 |
| commit | a23421f111bb256cdbf23dcfe15f35567ab88e98 (patch) | |
| tree | 181287ab975772263281de86819eacc30cd278c2 | |
| parent | 9dfa6dee5355f200cf19528ca7c678ef4007cec5 (diff) | |
| download | op-kernel-dev-a23421f111bb256cdbf23dcfe15f35567ab88e98.zip op-kernel-dev-a23421f111bb256cdbf23dcfe15f35567ab88e98.tar.gz | |
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>
| -rw-r--r-- | arch/x86/mm/tlb.c | 4 |
1 files 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; |
