fs: use loff_t type instead of long long

Use offset type consistently.

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/seq_file.c b/fs/seq_file.c
index 8537702..9943408 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -239,7 +239,7 @@
 loff_t seq_lseek(struct file *file, loff_t offset, int origin)
 {
 	struct seq_file *m = (struct seq_file *)file->private_data;
-	long long retval = -EINVAL;
+	loff_t retval = -EINVAL;
 
 	mutex_lock(&m->lock);
 	m->version = file->f_version;