From: Hugh Dickins <hugh@veritas.com>
Date: Thu, 17 May 2007 05:11:18 +0000 (-0700)
Subject: i386: don't check_pgt_cache in flush_tlb_mm
X-Git-Tag: v3.12-rc1~29468
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=bb49b32fece7910fbb02a6934bca4495596f6c8c;p=kernel%2Fkernel-generic.git

i386: don't check_pgt_cache in flush_tlb_mm

No other architecture calls check_pgt_cache() from within flush_tlb_mm(),
and i386 is already calling check_pgt_cache() from the usual places,
tlb_finish_mmu() and cpu_idle() (the latter being odd, but not unusual).
flush_tlb_mm() has no business to be freeing pages: remove that line, which
sneaked in with slub's i386 support.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: Andi Kleen <ak@suse.de>
Acked-by: Christoph Lameter <clameter@sgi.com>
Acked-by: William Lee Irwin III <wli@holomorphy.com>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/arch/i386/kernel/smp.c b/arch/i386/kernel/smp.c
index c9a7c98..6299c08 100644
--- a/arch/i386/kernel/smp.c
+++ b/arch/i386/kernel/smp.c
@@ -421,7 +421,7 @@ void flush_tlb_mm (struct mm_struct * mm)
 	}
 	if (!cpus_empty(cpu_mask))
 		flush_tlb_others(cpu_mask, mm, TLB_FLUSH_ALL);
-	check_pgt_cache();
+
 	preempt_enable();
 }