From 26e8a6c4328a5912e44cef0a3b5866c904daace5 Mon Sep 17 00:00:00 2001 From: Daniel Rosenberg Date: Mon, 24 Apr 2017 16:10:21 -0700 Subject: ANDROID: sdcardfs: Copy meta-data from lower inode From wrapfs commit 3ee9b365e38c ("Wrapfs: properly copy meta-data after AIO operations from lower inode") Signed-off-by: Daniel Rosenberg Bug: 35766959 Change-Id: I9a789222e27a17b8d85ce61c45397d1839f9a675 --- fs/sdcardfs/file.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/fs/sdcardfs/file.c b/fs/sdcardfs/file.c index 1f6921e2ffbf..6076c342dae6 100644 --- a/fs/sdcardfs/file.c +++ b/fs/sdcardfs/file.c @@ -358,9 +358,12 @@ ssize_t sdcardfs_read_iter(struct kiocb *iocb, struct iov_iter *iter) get_file(lower_file); /* prevent lower_file from being released */ iocb->ki_filp = lower_file; err = lower_file->f_op->read_iter(iocb, iter); - /* ? wait IO finish to update atime as ecryptfs ? */ iocb->ki_filp = file; fput(lower_file); + /* update upper inode atime as needed */ + if (err >= 0 || err == -EIOCBQUEUED) + fsstack_copy_attr_atime(file->f_path.dentry->d_inode, + file_inode(lower_file)); out: return err; } @@ -384,6 +387,13 @@ ssize_t sdcardfs_write_iter(struct kiocb *iocb, struct iov_iter *iter) err = lower_file->f_op->write_iter(iocb, iter); iocb->ki_filp = file; fput(lower_file); + /* update upper inode times/sizes as needed */ + if (err >= 0 || err == -EIOCBQUEUED) { + fsstack_copy_inode_size(file->f_path.dentry->d_inode, + file_inode(lower_file)); + fsstack_copy_attr_times(file->f_path.dentry->d_inode, + file_inode(lower_file)); + } out: return err; } -- cgit v1.2.3