From: Frank Holton <fholton@gmail.com>
Date: Wed, 13 Nov 2013 00:22:53 +0000 (-0500)
Subject: Btrfs: make btrfs_debug match pr_debug handling related to DEBUG
X-Git-Tag: v4.9.8~6368^2~275
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=27a0dd61a5cf742ebcd7a82c47be2502b1113eff;p=platform%2Fkernel%2Flinux-rpi3.git

Btrfs: make btrfs_debug match pr_debug handling related to DEBUG

The kernel macro pr_debug is defined as a empty statement when DEBUG is
not defined. Make btrfs_debug match pr_debug to avoid spamming
the kernel log with debug messages

Signed-off-by: Frank Holton <fholton@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <clm@fb.com>
---

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 47835f5..7158c97 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3816,8 +3816,14 @@ void btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...)
 	btrfs_printk(fs_info, KERN_NOTICE fmt, ##args)
 #define btrfs_info(fs_info, fmt, args...) \
 	btrfs_printk(fs_info, KERN_INFO fmt, ##args)
+
+#ifdef DEBUG
 #define btrfs_debug(fs_info, fmt, args...) \
 	btrfs_printk(fs_info, KERN_DEBUG fmt, ##args)
+#else
+#define btrfs_debug(fs_info, fmt, args...) \
+    no_printk(KERN_DEBUG fmt, ##args)
+#endif
 
 #ifdef CONFIG_BTRFS_ASSERT