linux-kernel - [PATCH 45/45] ext2: enable cgroup writeback support

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Date:	Tue,  6 Jan 2015 16:26:22 -0500
From:	Tejun Heo <tj@...nel.org>
To:	axboe@...nel.dk
Cc:	linux-kernel@...r.kernel.org, jack@...e.cz, hch@...radead.org,
	hannes@...xchg.org, linux-fsdevel@...r.kernel.org,
	vgoyal@...hat.com, lizefan@...wei.com, cgroups@...r.kernel.org,
	linux-mm@...ck.org, mhocko@...e.cz, clm@...com,
	fengguang.wu@...el.com, david@...morbit.com,
	Tejun Heo <tj@...nel.org>, linux-ext4@...r.kernel.org
Subject: [PATCH 45/45] ext2: enable cgroup writeback support

Writeback now supports cgroup writeback and the generic writeback,
buffer, libfs, and mpage helpers that ext2 uses are all updated to
work with cgroup writeback.

This patch enables cgroup writeback for ext2 by adding
FS_CGROUP_WRITEBACK to its ->fs_flags.

Signed-off-by: Tejun Heo <tj@...nel.org>
Cc: Jens Axboe <axboe@...nel.dk>
Cc: Jan Kara <jack@...e.cz>
Cc: linux-ext4@...r.kernel.org
---
 fs/ext2/super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index ae55fdd..dc3f27e 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -1546,7 +1546,7 @@ static struct file_system_type ext2_fs_type = {
 	.name		= "ext2",
 	.mount		= ext2_mount,
 	.kill_sb	= kill_block_super,
-	.fs_flags	= FS_REQUIRES_DEV,
+	.fs_flags	= FS_REQUIRES_DEV | FS_CGROUP_WRITEBACK,
 };
 MODULE_ALIAS_FS("ext2");
 
-- 
2.1.0

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