iversion: Rename make inode_cmp_iversion{+raw} to inode_eq_iversion{+raw}

The function inode_cmp_iversion{+raw} is counter-intuitive, because it
returns true when the counters are different and false when these are equal.

Rename it to inode_eq_iversion{+raw}, which will returns true when
the counters are equal and false otherwise.

Signed-off-by: Goffredo Baroncelli <kreijack@inwind.it>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
diff --git a/fs/affs/dir.c b/fs/affs/dir.c
index d180b46..b2bf701 100644
--- a/fs/affs/dir.c
+++ b/fs/affs/dir.c
@@ -81,7 +81,7 @@ affs_readdir(struct file *file, struct dir_context *ctx)
 	 * we can jump directly to where we left off.
 	 */
 	ino = (u32)(long)file->private_data;
-	if (ino && inode_cmp_iversion(inode, file->f_version) == 0) {
+	if (ino && inode_eq_iversion(inode, file->f_version)) {
 		pr_debug("readdir() left off=%d\n", ino);
 		goto inside;
 	}