Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.1 089/123] x86/mm: Add parenthesis for TLB tracepoint size calculation | Date | Sat, 8 Aug 2015 15:09:27 -0700 |
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4.1-stable review patch. If anyone has any objections, please let me know.
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From: Dave Hansen <dave.hansen@linux.intel.com>
commit bbc03778b9954a2ec93baed63718e4df0192f130 upstream.
flush_tlb_info->flush_start/end are both normal virtual addresses. When calculating 'nr_pages' (only used for the tracepoint), I neglected to put parenthesis in.
Thanks to David Koufaty for pointing this out.
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: dave@sr71.net Link: http://lkml.kernel.org/r/20150720230153.9E834081@viggo.jf.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- arch/x86/mm/tlb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/x86/mm/tlb.c +++ b/arch/x86/mm/tlb.c @@ -117,7 +117,7 @@ static void flush_tlb_func(void *info) } else { unsigned long addr; unsigned long nr_pages = - f->flush_end - f->flush_start / PAGE_SIZE; + (f->flush_end - f->flush_start) / PAGE_SIZE; addr = f->flush_start; while (addr < f->flush_end) { __flush_tlb_single(addr);
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