4 Commits

Author	SHA1	Message	Date
Jaegeuk Kim	351f4fba84	f2fs: add f2fs_destroy_trace_ios to free radix tree ... This patch removes radix tree after finishing tracing IOs. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>	2015-01-09 17:02:28 -08:00
Jaegeuk Kim	c05086506f	f2fs: add spin_lock to cover radix operations in IO tracer ... This patch adds spin_lock to cover radix tree operations in IO tracer. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>	2015-01-09 17:02:28 -08:00
Jaegeuk Kim	0e689d0369	f2fs: add key functions for f2fs_io_tracer ... This patch adds two key functions to trace process ids and IOs. The basic idea is to 1. remain process ids, pids, in page->private. 2. show pids in IO traces. So, later we can retrieve process information according to IO traces. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>	2015-01-09 17:02:24 -08:00
Jaegeuk Kim	63f92ddc8a	f2fs: add f2fs_io_tracer support ... This patch adds: o initial trace.c and trace.h with skeleton functions o Kconfig and Makefile to activate this feature Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>	2015-01-09 17:02:24 -08:00