return generic_file_read_iter(iocb, iter);
}
+static ssize_t ntfs_file_splice_read(struct file *in, loff_t *ppos,
+ struct pipe_inode_info *pipe,
+ size_t len, unsigned int flags)
+{
+ struct inode *inode = in->f_mapping->host;
+ struct ntfs_inode *ni = ntfs_i(inode);
+
+ if (is_encrypted(ni)) {
+ ntfs_inode_warn(inode, "encrypted i/o not supported");
+ return -EOPNOTSUPP;
+ }
+
+#ifndef CONFIG_NTFS3_LZX_XPRESS
+ if (ni->ni_flags & NI_FLAG_COMPRESSED_MASK) {
+ ntfs_inode_warn(
+ inode,
+ "activate CONFIG_NTFS3_LZX_XPRESS to read external compressed files");
+ return -EOPNOTSUPP;
+ }
+#endif
+
+ if (is_dedup(ni)) {
+ ntfs_inode_warn(inode, "read deduplicated not supported");
+ return -EOPNOTSUPP;
+ }
+
+ return generic_file_splice_read(in, ppos, pipe, len, flags);
+}
+
/*
* ntfs_get_frame_pages
*
#ifdef CONFIG_COMPAT
.compat_ioctl = ntfs_compat_ioctl,
#endif
- .splice_read = generic_file_splice_read,
+ .splice_read = ntfs_file_splice_read,
.mmap = ntfs_file_mmap,
.open = ntfs_file_open,
.fsync = generic_file_fsync,