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 <[email protected]>
---
 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



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