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Message-Id: <1316526315-16801-5-git-send-email-jweiner@redhat.com>
Date: Tue, 20 Sep 2011 15:45:15 +0200
From: Johannes Weiner <jweiner@...hat.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Mel Gorman <mgorman@...e.de>,
Christoph Hellwig <hch@...radead.org>,
Dave Chinner <david@...morbit.com>,
Wu Fengguang <fengguang.wu@...el.com>, Jan Kara <jack@...e.cz>,
Rik van Riel <riel@...hat.com>,
Minchan Kim <minchan.kim@...il.com>,
Chris Mason <chris.mason@...cle.com>,
"Theodore Ts'o" <tytso@....edu>,
Andreas Dilger <adilger.kernel@...ger.ca>, xfs@....sgi.com,
linux-btrfs@...r.kernel.org, linux-ext4@...r.kernel.org,
linux-mm@...ck.org, linux-fsdevel@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [patch 4/4] Btrfs: pass __GFP_WRITE for buffered write page allocations
Tell the page allocator that pages allocated for a buffered write are
expected to become dirty soon.
Signed-off-by: Johannes Weiner <jweiner@...hat.com>
---
fs/btrfs/file.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index e7872e4..ea1b892 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1084,7 +1084,7 @@ static noinline int prepare_pages(struct btrfs_root *root, struct file *file,
again:
for (i = 0; i < num_pages; i++) {
pages[i] = find_or_create_page(inode->i_mapping, index + i,
- GFP_NOFS);
+ GFP_NOFS | __GFP_WRITE);
if (!pages[i]) {
faili = i - 1;
err = -ENOMEM;
--
1.7.6
--
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