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| author | Daniel Rosenberg <drosen@google.com> | 2017-03-09 21:24:58 -0800 |
|---|---|---|
| committer | Daniel Rosenberg <drosen@google.com> | 2017-04-11 19:58:23 -0700 |
| commit | 0d206690e56a8245813aaad5ec037be130d74d3d (patch) | |
| tree | ae4f363447175405c4f7d5ae12c93fc224c7b343 | |
| parent | 3e803e9b79550065d87dcf9a81da1d931e121d89 (diff) | |
| download | x86_64-0d206690e56a8245813aaad5ec037be130d74d3d.tar.gz | |
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
| -rwxr-xr-x | 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 d193d64e30e8..f0befee6bc27 100755 --- 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; } |