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 14/24] nilfs2: introduce buffer management subsystem debugging output option
Date: Mon, 17 Jun 2013 16:24:55 +0400 [thread overview]
Message-ID: <1371471895.2075.145.camel@slavad-ubuntu> (raw)
From: Vyacheslav Dubeyko <slava@dubeyko.com>
Subject: [PATCH 14/24] nilfs2: introduce buffer management subsystem debugging output option
This patch adds subsystem's flags for page.c module.
Flags for these modules are grouped by
CONFIG_NILFS2_DEBUG_BUFFER_MANAGEMENT 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 | 6 ++++++
fs/nilfs2/debug.h | 10 ++++++++++
2 files changed, 16 insertions(+)
diff --git a/fs/nilfs2/Kconfig b/fs/nilfs2/Kconfig
index b40fd85..d6299c6 100644
--- a/fs/nilfs2/Kconfig
+++ b/fs/nilfs2/Kconfig
@@ -86,6 +86,12 @@ config NILFS2_DEBUG_BLOCK_MAPPING
This option enables debugging output in alloc.c, bmap.c, btnode.c,
btree.c, direct.c modules.
+config NILFS2_DEBUG_BUFFER_MANAGEMENT
+ bool "Enable buffer/page management subsystem debugging output"
+ default n
+ help
+ This option enables debugging output in page.c module.
+
endif # NILFS2_DEBUG_SUBSYSTEMS
endif # NILFS2_DEBUG
diff --git a/fs/nilfs2/debug.h b/fs/nilfs2/debug.h
index ee712d4..517c5e8 100644
--- a/fs/nilfs2/debug.h
+++ b/fs/nilfs2/debug.h
@@ -82,6 +82,13 @@
#define DBG_BTREE 0x00100000
#define DBG_DIRECT 0x00200000
+/*
+ * These flags enable debugging output in modules that
+ * implement buffer management subsystem functionality
+ * (page.c).
+ */
+#define DBG_PAGE 0x00400000
+
#ifdef CONFIG_NILFS2_DEBUG
/* Definition of flags' set for debugging */
@@ -107,6 +114,9 @@ static u32 DBG_MASK = (
DBG_ALLOC | DBG_BMAP | DBG_BTNODE |
DBG_BTREE | DBG_DIRECT |
#endif /* CONFIG_NILFS2_DEBUG_BLOCK_MAPPING */
+#ifdef CONFIG_NILFS2_DEBUG_BUFFER_MANAGEMENT
+ DBG_PAGE |
+#endif /* CONFIG_NILFS2_DEBUG_BUFFER_MANAGEMENT */
0);
#define NILFS2_SUBSYS_MASK 0x0FFFFFFF
--
1.7.9.5
reply other threads:[~2013-06-17 12:29 UTC|newest]
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