From 9b51faf398f7f47cc101f5e1843195c2ff59147b Mon Sep 17 00:00:00 2001
From: Seema Khowala <seemaj@nvidia.com>
Date: Mon, 7 Jul 2014 14:36:59 -0700
Subject: Revert "fs/proc/task_mmu.c: hold read lock on mm->mmap_sem for
 get_user_pages"

This reverts commit 41b5e73ff878e7c1629f0ad8707cbc4c5c128f7b.

Bug 200016834

Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Change-Id: Idec735d6804efd61d70941165f4bee72a10b60e7
Reviewed-on: http://git-master/r/435239
Reviewed-by: Prajakta Gudadhe <pgudadhe@nvidia.com>
Tested-by: Hridya Valsaraju <hvalsaraju@nvidia.com>
GVS: Gerrit_Virtual_Submit
---
 fs/proc/task_mmu.c | 2 --
 1 file changed, 2 deletions(-)

(limited to 'fs')

diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index a9e45c7a6c59..db17f98bc564 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -158,10 +158,8 @@ static void seq_print_vma_name(struct seq_file *m, struct vm_area_struct *vma)
 		long pages_pinned;
 		struct page *page;
 
-		down_read(&current->mm->mmap_sem);
 		pages_pinned = get_user_pages(current, mm, page_start_vaddr,
 				1, 0, 0, &page, NULL);
-		up_read(&current->mm->mmap_sem);
 		if (pages_pinned < 1) {
 			seq_puts(m, "<fault>]");
 			return;
-- 
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