First, the btrfs_debug macros open-code (one possible definition of)
DYNAMIC_DEBUG_BRANCH, so they don't benefit from the HAVE_JUMP_LABEL
optimization.
Second, changes on x86-64 later in this series require that all struct
_ddebug descriptors in a translation unit use distinct identifiers.
Using the new _dynamic_func_call_no_desc helper macro from
dynamic_debug.h takes care of both of these.
Cc: linux-bt...@vger.kernel.org
Acked-by: David Sterba <dste...@suse.com>
Acked-by: Jason Baron <jba...@akamai.com>
Signed-off-by: Rasmus Villemoes <li...@rasmusvillemoes.dk>
---
fs/btrfs/ctree.h | 34 ++++++++++------------------------
1 file changed, 10 insertions(+), 24 deletions(-)
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 2cddfe7806a4..7ae6cdad5b38 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3353,31 +3353,17 @@ void btrfs_printk(const struct btrfs_fs_info *fs_info,
const char *fmt, ...);
#if defined(CONFIG_DYNAMIC_DEBUG)
#define btrfs_debug(fs_info, fmt, args...) \
-do { \
- DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
- if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \
- btrfs_printk(fs_info, KERN_DEBUG fmt, ##args); \
-} while (0)
-#define btrfs_debug_in_rcu(fs_info, fmt, args...) \
-do { \
- DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
- if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT))
\
- btrfs_printk_in_rcu(fs_info, KERN_DEBUG fmt, ##args); \
-} while (0)
+ _dynamic_func_call_no_desc(fmt, btrfs_printk, \
+ fs_info, KERN_DEBUG fmt, ##args)
+#define btrfs_debug_in_rcu(fs_info, fmt, args...) \
+ _dynamic_func_call_no_desc(fmt, btrfs_printk_in_rcu, \
+ fs_info, KERN_DEBUG fmt, ##args)
#define btrfs_debug_rl_in_rcu(fs_info, fmt, args...) \
-do { \
- DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
- if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \
- btrfs_printk_rl_in_rcu(fs_info, KERN_DEBUG fmt, \
- ##args);\
-} while (0)
-#define btrfs_debug_rl(fs_info, fmt, args...) \
-do { \
- DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
- if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \
- btrfs_printk_ratelimited(fs_info, KERN_DEBUG fmt, \
- ##args); \
-} while (0)
+ _dynamic_func_call_no_desc(fmt, btrfs_printk_rl_in_rcu, \
+ fs_info, KERN_DEBUG fmt, ##args)
+#define btrfs_debug_rl(fs_info, fmt, args...) \
+ _dynamic_func_call_no_desc(fmt, btrfs_printk_ratelimited, \
+ fs_info, KERN_DEBUG fmt, ##args)
#elif defined(DEBUG)
#define btrfs_debug(fs_info, fmt, args...) \
btrfs_printk(fs_info, KERN_DEBUG fmt, ##args)
--
2.19.1.3.g1d92a00e68
