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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)

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>
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
hifive-unleashed-5.1
hujianyang 2015-05-12 16:05:57 +08:00 committed by Jaegeuk Kim
parent 40a02be178
commit 08b95126c7
1 changed files with 3 additions and 0 deletions
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3
fs/f2fs/dir.c
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@ -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
};