From: Vyacheslav Dubeyko <slava@xxxxxxxxxxx> Subject: [PATCH 02/24] nilfs2: introduce base subsystem debugging output option This patch adds subsystem's flags for super.c, the_nilfs.c, namei.c, ioctl.c, inode.c, file.c, dir.c modules. Flags for these modules are grouped by CONFIG_NILFS2_DEBUG_BASE_OPERATIONS kernel configuration option. This kernel configuration option enables (or disables) debugging output from of all above-mentioned modules. Signed-off-by: Vyacheslav Dubeyko <slava@xxxxxxxxxxx> CC: Ryusuke Konishi <konishi.ryusuke@xxxxxxxxxxxxx> --- fs/nilfs2/Kconfig | 23 +++++++++++++++++++++++ fs/nilfs2/debug.h | 21 ++++++++++++++++++++- 2 files changed, 43 insertions(+), 1 deletion(-) diff --git a/fs/nilfs2/Kconfig b/fs/nilfs2/Kconfig index a379d8e..d886e15 100644 --- a/fs/nilfs2/Kconfig +++ b/fs/nilfs2/Kconfig @@ -34,4 +34,27 @@ config NILFS2_DEBUG written to the system log. Under normal circumstances, this results in very little overhead. +if NILFS2_DEBUG + +config NILFS2_DEBUG_SUBSYSTEMS + bool "Enable output from subsystems" + depends on NILFS2_DEBUG + default n + help + This option groups opportunity to enable debugging output from + concrete NILFS2 driver's subsystems. + +if NILFS2_DEBUG_SUBSYSTEMS + +config NILFS2_DEBUG_BASE_OPERATIONS + bool "Enable base operations subsystem debugging output" + default n + help + This option enables debugging output in super.c, the_nilfs.c, + namei.c, ioctl.c, inode.c, file.c, dir.c modules. + +endif # NILFS2_DEBUG_SUBSYSTEMS + +endif # NILFS2_DEBUG + endif # NILFS2_FS diff --git a/fs/nilfs2/debug.h b/fs/nilfs2/debug.h index c351120..ae264f9 100644 --- a/fs/nilfs2/debug.h +++ b/fs/nilfs2/debug.h @@ -26,10 +26,29 @@ #include <linux/printk.h> +/* + * These flags enable debugging output in modules that + * implement base file system operations functionality + * (super.c, the_nilfs.c, namei.c, ioctl.c, inode.c, + * file.c, dir.c). + */ +#define DBG_SUPER 0x00000002 +#define DBG_THE_NILFS 0x00000004 +#define DBG_NAMEI 0x00000008 +#define DBG_IOCTL 0x00000010 +#define DBG_INODE 0x00000020 +#define DBG_FILE 0x00000040 +#define DBG_DIR 0x00000080 + #ifdef CONFIG_NILFS2_DEBUG /* Definition of flags' set for debugging */ -static u32 DBG_MASK = (0); +static u32 DBG_MASK = ( +#ifdef CONFIG_NILFS2_DEBUG_BASE_OPERATIONS + DBG_SUPER | DBG_THE_NILFS | DBG_NAMEI | + DBG_IOCTL | DBG_INODE | DBG_FILE | DBG_DIR | +#endif /* CONFIG_NILFS2_DEBUG_BASE_OPERATIONS */ +0); #define NILFS2_SUBSYS_MASK 0x0FFFFFFF #define NILFS2_DBG_OUT_MASK 0xF0000000 -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
