From fe0da9c09b2dc448ff781d1426ecb36d145ce51b Mon Sep 17 00:00:00 2001 From: Amir Goldstein Date: Wed, 5 Jun 2019 08:04:51 -0700 Subject: fuse: copy_file_range needs to strip setuid bits and update timestamps Like ->write_iter(), we update mtime and strip setuid of dst file before copy and like ->read_iter(), we update atime of src file after copy. Signed-off-by: Amir Goldstein Acked-by: Miklos Szeredi Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong --- fs/fuse/file.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'fs/fuse') diff --git a/fs/fuse/file.c b/fs/fuse/file.c index dc342edb399b..5ae2828beb00 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -3155,6 +3155,10 @@ static ssize_t __fuse_copy_file_range(struct file *file_in, loff_t pos_in, inode_lock(inode_out); + err = file_modified(file_out); + if (err) + goto out; + if (fc->writeback_cache) { err = fuse_writeback_range(inode_out, pos_out, pos_out + len); if (err) @@ -3193,6 +3197,7 @@ out: clear_bit(FUSE_I_SIZE_UNSTABLE, &fi_out->state); inode_unlock(inode_out); + file_accessed(file_in); return err; } -- cgit v1.2.3-55-g7522