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authorTheodore Ts'o <tytso@mit.edu>2009-09-18 13:38:55 -0400
committerTheodore Ts'o <tytso@mit.edu>2009-09-18 13:38:55 -0400
commit6ba495e9259cd9a0b40ebd6c315143535c92542f (patch)
tree7d43ea10a8971087e6e8b00c9934b0cf83e53d1e /fs/ext4/mballoc.h
parent91cc219ad963731191247c5f2db4118be2bc341a (diff)
downloadlinux-6ba495e9259cd9a0b40ebd6c315143535c92542f.tar.bz2
ext4: Add configurable run-time mballoc debugging
Allow mballoc debugging to be enabled at run-time instead of just at compile time. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/mballoc.h')
-rw-r--r--fs/ext4/mballoc.h16
1 files changed, 12 insertions, 4 deletions
diff --git a/fs/ext4/mballoc.h b/fs/ext4/mballoc.h
index c96bb19f58f9..9db890d4d275 100644
--- a/fs/ext4/mballoc.h
+++ b/fs/ext4/mballoc.h
@@ -37,11 +37,19 @@
/*
*/
-#define MB_DEBUG__
-#ifdef MB_DEBUG
-#define mb_debug(fmt, a...) printk(fmt, ##a)
+#ifdef CONFIG_EXT4_DEBUG
+extern u8 mb_enable_debug;
+
+#define mb_debug(n, fmt, a...) \
+ do { \
+ if ((n) <= mb_enable_debug) { \
+ printk(KERN_DEBUG "(%s, %d): %s: ", \
+ __FILE__, __LINE__, __func__); \
+ printk(fmt, ## a); \
+ } \
+ } while (0)
#else
-#define mb_debug(fmt, a...)
+#define mb_debug(n, fmt, a...)
#endif
/*