CC: linux-ext4@xxxxxxxxxxxxxxx Signed-off-by: Jan Kara <jack@xxxxxxx> --- include/trace/events/ext4.h | 2 ++ include/trace/events/jbd2.h | 2 ++ kernel/trace/Kconfig | 23 +++++++++++++++++++++++ 3 files changed, 27 insertions(+), 0 deletions(-) diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h index 2aa6aa3..f1ad2e3 100644 --- a/include/trace/events/ext4.h +++ b/include/trace/events/ext4.h @@ -1,5 +1,7 @@ #undef TRACE_SYSTEM +#undef TRACE_CONFIG #define TRACE_SYSTEM ext4 +#define TRACE_CONFIG CONFIG_EXT4_TRACER #if !defined(_TRACE_EXT4_H) || defined(TRACE_HEADER_MULTI_READ) #define _TRACE_EXT4_H diff --git a/include/trace/events/jbd2.h b/include/trace/events/jbd2.h index bf16545..37e442b 100644 --- a/include/trace/events/jbd2.h +++ b/include/trace/events/jbd2.h @@ -1,5 +1,7 @@ #undef TRACE_SYSTEM +#undef TRACE_CONFIG #define TRACE_SYSTEM jbd2 +#define TRACE_CONFIG CONFIG_JBD2_TRACER #if !defined(_TRACE_JBD2_H) || defined(TRACE_HEADER_MULTI_READ) #define _TRACE_JBD2_H diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index 13e13d4..e696314 100644 --- a/kernel/trace/Kconfig +++ b/kernel/trace/Kconfig @@ -438,6 +438,29 @@ config BLK_DEV_IO_TRACE If unsure, say N. +config EXT4_TRACER + bool "Support for tracing EXT4 events" + depends on EXT4_FS + select GENERIC_TRACER + select TRACE_ANY_MODULE if EXT4_FS=m + help + Provide tracing for various functions in ext4 filesystem + such as block allocation, delayed allocation, or writeback + handling. This trace points can help with debugging allocation + algorithms or writeback performance. + + If unsure, say N. + +config JBD2_TRACER + bool "JBD2 tracing" + depends on JBD2 + select GENERIC_TRACER + help + Provide tracing for several functions in JBD2 commit and + checkpointing code. + + If unsure, say N. + config KPROBE_EVENT depends on KPROBES depends on HAVE_REGS_AND_STACK_ACCESS_API -- 1.6.4.2 -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
