From: David Sterba <dsterba@suse.cz>
Date: Mon, 3 Feb 2014 18:23:47 +0000 (+0100)
Subject: btrfs: send: squeeze bitfilelds in fs_path
X-Git-Tag: v3.15-rc1~96^2~95
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=1f5a7ff999523e9996befbe03e196eb73370fe36;p=karo-tx-linux.git

btrfs: send: squeeze bitfilelds in fs_path

We know that buf_len is at most PATH_MAX, 4k, and can merge it with the
reversed member. This saves 3 bytes in favor of inline_buf.

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fb.com>
---

diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index 5b9b82b32cde..4405aae05281 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -53,8 +53,8 @@ struct fs_path {
 			char *end;
 
 			char *buf;
-			int buf_len;
-			unsigned int reversed:1;
+			unsigned short buf_len:15;
+			unsigned short reversed:1;
 			char inline_buf[];
 		};
 		char pad[PAGE_SIZE];