From: Vyacheslav Dubeyko <slava@dubeyko.com>
To: linux-nilfs@vger.kernel.org
Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>,
Linux FS Devel <linux-fsdevel@vger.kernel.org>
Subject: [PATCH 12/24] nilfs2: introduce block mapping subsystem debugging output option
Date: Mon, 17 Jun 2013 16:24:31 +0400 [thread overview]
Message-ID: <1371471871.2075.143.camel@slavad-ubuntu> (raw)
From: Vyacheslav Dubeyko <slava@dubeyko.com>
Subject: [PATCH 12/24] nilfs2: introduce block mapping subsystem debugging output option
This patch adds subsystem's flags for alloc.c, bmap.c, btnode.c,
btree.c, direct.c modules. Flags for these modules are grouped by
CONFIG_NILFS2_DEBUG_BLOCK_MAPPING kernel configuration option.
This kernel configuration option enables (or disables) debugging
output from of all above-mentioned modules.
Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com>
CC: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
---
fs/nilfs2/Kconfig | 7 +++++++
fs/nilfs2/debug.h | 15 +++++++++++++++
2 files changed, 22 insertions(+)
diff --git a/fs/nilfs2/Kconfig b/fs/nilfs2/Kconfig
index 5eb5140..b40fd85 100644
--- a/fs/nilfs2/Kconfig
+++ b/fs/nilfs2/Kconfig
@@ -79,6 +79,13 @@ config NILFS2_DEBUG_RECOVERY_SUBSYSTEM
help
This option enables debugging output in recovery.c module.
+config NILFS2_DEBUG_BLOCK_MAPPING
+ bool "Enable block mapping subsystem debugging output"
+ default n
+ help
+ This option enables debugging output in alloc.c, bmap.c, btnode.c,
+ btree.c, direct.c modules.
+
endif # NILFS2_DEBUG_SUBSYSTEMS
endif # NILFS2_DEBUG
diff --git a/fs/nilfs2/debug.h b/fs/nilfs2/debug.h
index 538726d..ee712d4 100644
--- a/fs/nilfs2/debug.h
+++ b/fs/nilfs2/debug.h
@@ -71,6 +71,17 @@
*/
#define DBG_RECOVERY 0x00010000
+/*
+ * These flags enable debugging output in modules that
+ * implement block mapping subsystem functionality
+ * (alloc.c, bmap.c, btnode.c, btree.c, direct.c).
+ */
+#define DBG_ALLOC 0x00020000
+#define DBG_BMAP 0x00040000
+#define DBG_BTNODE 0x00080000
+#define DBG_BTREE 0x00100000
+#define DBG_DIRECT 0x00200000
+
#ifdef CONFIG_NILFS2_DEBUG
/* Definition of flags' set for debugging */
@@ -92,6 +103,10 @@ static u32 DBG_MASK = (
#ifdef CONFIG_NILFS2_DEBUG_RECOVERY_SUBSYSTEM
DBG_RECOVERY |
#endif /* CONFIG_NILFS2_DEBUG_RECOVERY_SUBSYSTEM */
+#ifdef CONFIG_NILFS2_DEBUG_BLOCK_MAPPING
+ DBG_ALLOC | DBG_BMAP | DBG_BTNODE |
+ DBG_BTREE | DBG_DIRECT |
+#endif /* CONFIG_NILFS2_DEBUG_BLOCK_MAPPING */
0);
#define NILFS2_SUBSYS_MASK 0x0FFFFFFF
--
1.7.9.5
reply other threads:[~2013-06-17 12:24 UTC|newest]
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