linux-stable.git/include/trace/events/f2fs.h, branch linux-4.0.y

f2fs: fix sparse warnings

2015-02-12T01:04:49+00:00

This patch resolves the following warnings.

include/trace/events/f2fs.h:150:1: warning: expression using sizeof bool
include/trace/events/f2fs.h:180:1: warning: expression using sizeof bool
include/trace/events/f2fs.h:990:1: warning: expression using sizeof bool
include/trace/events/f2fs.h:990:1: warning: expression using sizeof bool
include/trace/events/f2fs.h:150:1: warning: odd constant _Bool cast (ffffffffffffffff becomes 1)
include/trace/events/f2fs.h:180:1: warning: odd constant _Bool cast (ffffffffffffffff becomes 1)
include/trace/events/f2fs.h:990:1: warning: odd constant _Bool cast (ffffffffffffffff becomes 1)
include/trace/events/f2fs.h:990:1: warning: odd constant _Bool cast (ffffffffffffffff becomes 1)

fs/f2fs/checkpoint.c:27:19: warning: symbol 'inode_entry_slab' was not declared. Should it be static?
fs/f2fs/checkpoint.c:577:15: warning: cast to restricted __le32
fs/f2fs/checkpoint.c:592:15: warning: cast to restricted __le32

fs/f2fs/trace.c:19:1: warning: symbol 'pids' was not declared. Should it be static?
fs/f2fs/trace.c:21:21: warning: symbol 'last_io' was not declared. Should it be static?

Signed-off-by: Jaegeuk Kim

f2fs: split UMOUNT and FASTBOOT flags

2015-02-12T01:04:41+00:00

This patch adds FASTBOOT flag into checkpoint as follows.

 - CP_UMOUNT_FLAG is set when system is umounted.
 - CP_FASTBOOT_FLAG is set when intermediate checkpoint having node summaries
   was done.

So, if you get CP_UMOUNT_FLAG from checkpoint, the system was umounted cleanly.
Instead, if there was sudden-power-off, you can get CP_FASTBOOT_FLAG or nothing.

Reviewed-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: merge flags in struct f2fs_sb_info

2015-02-12T01:04:38+00:00

Currently, there are several variables with Boolean type as below:

struct f2fs_sb_info {
...
	int s_dirty;
	bool need_fsck;
	bool s_closing;
...
	bool por_doing;
...
}

For this there are some issues:
1. there are some space of f2fs_sb_info is wasted due to aligning after Boolean
   type variables by compiler.
2. if we continuously add new flag into f2fs_sb_info, structure will be messed
   up.

So in this patch, we try to:
1. switch s_dirty to Boolean type variable since it has two status 0/1.
2. merge s_dirty/need_fsck/s_closing/por_doing variables into s_flag.
3. introduce an enum type which can indicate different states of sbi.
4. use new introduced universal interfaces is_sbi_flag_set/{set,clear}_sbi_flag
   to operate flags for sbi.

After that, above issues will be fixed.

Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: cleanup parameters for trace_f2fs_submit_{read_,write_,page_,page_m}bio with fio

2015-01-10T01:02:26+00:00

Cleanup parameters for trace_f2fs_submit_{read_,write_,page_,page_m}bio with fio
as one parameter.

Suggested-by: Jaegeuk Kim 
Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: cleanup trace event of f2fs_submit_page_{m,}bio with DECLARE_EVENT_CLASS

2015-01-10T01:02:25+00:00

This patch adds missing parameter _type_ for trace_f2fs_submit_page_bio, then
use DECLARE_EVENT_CLASS/DEFINE_EVENT_CONDITION pair to cleanup some trace event
code related to f2fs_submit_page_{m,}bio.

Additionally, after we remove redundant code, size of code can be reduced:
   text    data     bss     dec     hex filename
 176787    8712      56  185555   2d4d3 f2fs.ko.org
 174408    8648      56  183112   2cb48 f2fs.ko

Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: introduce FITRIM in f2fs_ioctl

2014-09-30T22:06:09+00:00

This patch introduces FITRIM in f2fs_ioctl.
In this case, f2fs will issue small discards and prefree discards as many as
possible for the given area.

Reviewed-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: introduce cp_control structure

2014-09-30T22:01:28+00:00

This patch add a new data structure to control checkpoint parameters.
Currently, it presents the reason of checkpoint such as is_umount and normal
sync.

Reviewed-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: add tracepoint for f2fs_direct_IO

2014-08-02T14:34:46+00:00

This patch adds a tracepoint for f2fs_direct_IO.

Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: add tracepoint for f2fs_issue_flush

2014-07-30T21:13:36+00:00

This patch adds a tracepoint for f2fs_issue_flush.

Signed-off-by: Jaegeuk Kim

f2fs: add a tracepoint for f2fs_read_data_page

2014-05-07T01:21:59+00:00

This patch adds a tracepoint for f2fs_read_data_page to trace when page is
readed by user.

Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim