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List: linux-nilfs
Subject: [PATCH 06/24] nilfs2: introduce segments subsystem debugging output option
From: Vyacheslav Dubeyko <slava () dubeyko ! com>
Date: 2013-06-17 12:23:19
Message-ID: 1371471799.2075.136.camel () slavad-ubuntu
[Download RAW message or body]
From: Vyacheslav Dubeyko <slava@dubeyko.com>
Subject: [PATCH 06/24] nilfs2: introduce segments subsystem debugging output option
This patch adds subsystem's flags for segbuf.c, segment.c modules.
Flags for these modules are grouped by CONFIG_NILFS2_DEBUG_SEGMENTS_SUBSYSTEM
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 | 11 +++++++++++
2 files changed, 18 insertions(+)
diff --git a/fs/nilfs2/Kconfig b/fs/nilfs2/Kconfig
index 3142c0d..91ae8b3 100644
--- a/fs/nilfs2/Kconfig
+++ b/fs/nilfs2/Kconfig
@@ -60,6 +60,13 @@ config NILFS2_DEBUG_MDT_FILES
This option enables debugging output in mdt.c, cpfile.c, dat.c,
ifile.c, sufile.c modules.
+config NILFS2_DEBUG_SEGMENTS_SUBSYSTEM
+ bool "Enable segments subsystem debugging output"
+ default n
+ help
+ This option enables debugging output in segbuf.c, segment.c
+ modules.
+
endif # NILFS2_DEBUG_SUBSYSTEMS
endif # NILFS2_DEBUG
diff --git a/fs/nilfs2/debug.h b/fs/nilfs2/debug.h
index 236a18a..e2e619e 100644
--- a/fs/nilfs2/debug.h
+++ b/fs/nilfs2/debug.h
@@ -51,6 +51,14 @@
#define DBG_IFILE 0x00000800
#define DBG_SUFILE 0x00001000
+/*
+ * These flags enable debugging output in modules that
+ * implement segments subsystem functionality
+ * (segbuf.c, segment.c).
+ */
+#define DBG_SEGBUF 0x00002000
+#define DBG_SEGMENT 0x00004000
+
#ifdef CONFIG_NILFS2_DEBUG
/* Definition of flags' set for debugging */
@@ -63,6 +71,9 @@ static u32 DBG_MASK = (
DBG_MDT | DBG_CPFILE | DBG_DAT |
DBG_IFILE | DBG_SUFILE |
#endif /* CONFIG_NILFS2_DEBUG_MDT_FILES */
+#ifdef CONFIG_NILFS2_DEBUG_SEGMENTS_SUBSYSTEM
+ DBG_SEGBUF | DBG_SEGMENT |
+#endif /* CONFIG_NILFS2_DEBUG_SEGMENTS_SUBSYSTEM */
0);
#define NILFS2_SUBSYS_MASK 0x0FFFFFFF
--
1.7.9.5
--
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