linux-toradex.git/fs/f2fs/trace.h, branch v4.2.1

f2fs: add sbi and page pointer in f2fs_io_info

2015-05-28T22:41:32+00:00

This patch adds f2fs_sb_info and page pointers in f2fs_io_info structure.
With this change, we can reduce a lot of parameters for IO functions.

Signed-off-by: Jaegeuk Kim

f2fs: add f2fs_destroy_trace_ios to free radix tree

2015-01-10T01:02:28+00:00

This patch removes radix tree after finishing tracing IOs.

Signed-off-by: Jaegeuk Kim

f2fs: add spin_lock to cover radix operations in IO tracer

2015-01-10T01:02:28+00:00

This patch adds spin_lock to cover radix tree operations in IO tracer.

Signed-off-by: Jaegeuk Kim

f2fs: add key functions for f2fs_io_tracer

2015-01-10T01:02:24+00:00

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

f2fs: add f2fs_io_tracer support

2015-01-10T01:02:24+00:00

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