[PATCH] f2fs: add compat_ioctl to f2fs_dir_operations

[hujianyang <hujianyang@huawei.com>]

commit e9750824114ff939d9da299e73651add6aa65456

f2fs: add compat_ioctl to provide backward compatability

introduce compat_ioctl to regular files, but doesn't add this
functionality to f2fs_dir_operations.

While running a 32-bit busybox, I met an error like this:
(A is a directory)

# busybox chattr +i A
chattr: reading flags on A: Inappropriate ioctl for device

This patch copies compat_ioctl from f2fs_file_operations and
fix this problem.

Signed-off-by: hujianyang <hujianyang@huawei.com>
---
 fs/f2fs/dir.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index 12f6869..3e92376 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -879,4 +879,7 @@ const struct file_operations f2fs_dir_operations = {
 	.iterate	= f2fs_readdir,
 	.fsync		= f2fs_sync_file,
 	.unlocked_ioctl	= f2fs_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl   = f2fs_compat_ioctl,
+#endif
 };
-- 
1.6.0.2



------------------------------------------------------------------------------
One dashboard for servers and applications across Physical-Virtual-Cloud 
Widest out-of-the-box monitoring support with 50+ applications
Performance metrics, stats and reports that give you Actionable Insights
Deep dive visibility with transaction tracing using APM Insight.
http://ad.doubleclick.net/ddm/clk/290420510;117567292;y