diff options
| author | Daniel Rosenberg <drosen@google.com> | 2017-03-09 21:24:58 -0800 |
|---|---|---|
| committer | Daniel Rosenberg <drosen@google.com> | 2017-04-06 17:37:38 -0700 |
| commit | b2fc288c811eb828012b13f014aafd4d0e2c59b4 (patch) | |
| tree | 43e3ef24ea53c6d0a3f5378077de8e5ac86db92a | |
| parent | 5156f3e9f222f9dd9bce5981b67b1517aa5625c9 (diff) | |
ANDROID: sdcardfs: copy lower inode attributes in ->ioctl
Adapted from wrapfs
commit fbc9c6f83ea6 ("Wrapfs: copy lower inode attributes in ->ioctl")
commit e97d8e26cc9e ("Wrapfs: use file_inode helper")
Some ioctls (e.g., EXT2_IOC_SETFLAGS) can change inode attributes, so copy
them from lower inode.
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Bug: 35766959
Change-Id: I0f12684b9dbd4088b4a622c7ea9c03087f40e572
| -rw-r--r-- | fs/sdcardfs/file.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/sdcardfs/file.c b/fs/sdcardfs/file.c index 7e2c50b30782..41a550fec3f2 100644 --- a/fs/sdcardfs/file.c +++ b/fs/sdcardfs/file.c @@ -113,6 +113,10 @@ static long sdcardfs_unlocked_ioctl(struct file *file, unsigned int cmd, if (lower_file->f_op->unlocked_ioctl) err = lower_file->f_op->unlocked_ioctl(lower_file, cmd, arg); + /* some ioctls can change inode attributes (EXT2_IOC_SETFLAGS) */ + if (!err) + sdcardfs_copy_and_fix_attrs(file_inode(file), + file_inode(lower_file)); out: return err; } |