From 8fc41f10d85efacf09f5db668e0022b0044ea437 Mon Sep 17 00:00:00 2001
From: Shaohua Li <shaohua.li@intel.com>
Date: Tue, 18 Oct 2011 10:55:51 -0400
Subject: [PATCH] --- yaml --- r: 273142 b: refs/heads/master c:
 1bce63d1a2a2c8929442b79acd4eab2e3db10a0b h: refs/heads/master v: v3

---
 [refs]                | 2 +-
 trunk/fs/ext4/inode.c | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 653e0191fb06..003e1d4fe88a 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: f6f96fdb8c2779f9bd8ed7b0b08405b4439c982b
+refs/heads/master: 1bce63d1a2a2c8929442b79acd4eab2e3db10a0b
diff --git a/trunk/fs/ext4/inode.c b/trunk/fs/ext4/inode.c
index 4863238c3754..081bb25a9ad3 100644
--- a/trunk/fs/ext4/inode.c
+++ b/trunk/fs/ext4/inode.c
@@ -2160,6 +2160,7 @@ static int ext4_da_writepages(struct address_space *mapping,
 	struct ext4_sb_info *sbi = EXT4_SB(mapping->host->i_sb);
 	pgoff_t done_index = 0;
 	pgoff_t end;
+	struct blk_plug plug;
 
 	trace_ext4_da_writepages(inode, wbc);
 
@@ -2238,6 +2239,7 @@ static int ext4_da_writepages(struct address_space *mapping,
 	if (wbc->sync_mode == WB_SYNC_ALL || wbc->tagged_writepages)
 		tag_pages_for_writeback(mapping, index, end);
 
+	blk_start_plug(&plug);
 	while (!ret && wbc->nr_to_write > 0) {
 
 		/*
@@ -2302,6 +2304,7 @@ static int ext4_da_writepages(struct address_space *mapping,
 			 */
 			break;
 	}
+	blk_finish_plug(&plug);
 	if (!io_done && !cycled) {
 		cycled = 1;
 		index = 0;