From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 19 Dec 2006 01:12:42 +0000 (+0100)
Subject: [MIPS] Delete duplicate call to load_irq_save.
X-Git-Tag: v2.6.20-rc6~57^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2806ccd7ad9073f4f1a065b5672d7592e7838e97;p=platform%2Fkernel%2Flinux-stable.git

[MIPS] Delete duplicate call to load_irq_save.

This call may have resulted to local_tlb_flush_range returning with
interrupts disabled resulting in excessive interrupt latency.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---

diff --git a/arch/mips/mm/tlb-r4k.c b/arch/mips/mm/tlb-r4k.c
index 2e0e21e..65160d4 100644
--- a/arch/mips/mm/tlb-r4k.c
+++ b/arch/mips/mm/tlb-r4k.c
@@ -106,7 +106,6 @@ void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
 		ENTER_CRITICAL(flags);
 		size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
 		size = (size + 1) >> 1;
-		local_irq_save(flags);
 		if (size <= current_cpu_data.tlbsize/2) {
 			int oldpid = read_c0_entryhi();
 			int newpid = cpu_asid(cpu, mm);