Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 6ec178da authored by Namjae Jeon's avatar Namjae Jeon Committed by Jaegeuk Kim
Browse files

f2fs: add tracepoints for write page operations 



Add tracepoints to debug the various page write operation
like data pages, meta pages.

Signed-off-by: default avatarNamjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: default avatarPankaj Kumar <pankaj.km@samsung.com>
Acked-by: default avatarSteven Rostedt <rostedt@goodmis.org>
[Jaegeuk: remove unnecessary tracepoints]
Signed-off-by: default avatarJaegeuk Kim <jaegeuk.kim@samsung.com>
parent c01e2853

fs/f2fs/segment.c

+5 −0
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ 
#include "f2fs.h"

#include "segment.h"

#include "node.h"

#include <trace/events/f2fs.h>



/*

 * This function balances dirty node and dentry pages.
@@ -691,6 +692,9 @@ static void do_submit_bio(struct f2fs_sb_info *sbi, 
		struct bio_private *p = sbi->bio[btype]->bi_private;

		p->sbi = sbi;

		sbi->bio[btype]->bi_end_io = f2fs_end_io_write;



		trace_f2fs_do_submit_bio(sbi->sb, btype, sync, sbi->bio[btype]);



		if (type == META_FLUSH) {

			DECLARE_COMPLETION_ONSTACK(wait);

			p->is_sync = true;
@@ -745,6 +749,7 @@ static void submit_write_page(struct f2fs_sb_info *sbi, struct page *page, 
	sbi->last_block_in_bio[type] = blk_addr;



	up_write(&sbi->bio_sem);

	trace_f2fs_submit_write_page(page, blk_addr, type);

}



static bool __has_curseg_space(struct f2fs_sb_info *sbi, int type)

include/trace/events/f2fs.h

+67 −0
Original line number Diff line number Diff line
@@ -8,6 +8,14 @@ 


#define show_dev(entry)		MAJOR(entry->dev), MINOR(entry->dev)

#define show_dev_ino(entry)	show_dev(entry), (unsigned long)entry->ino



#define show_block_type(type)						\

	__print_symbolic(type,						\

		{ NODE,		"NODE" },				\

		{ DATA,		"DATA" },				\

		{ META,		"META" },				\

		{ META_FLUSH,	"META_FLUSH" })



#define show_bio_type(type)						\

	__print_symbolic(type,						\

		{ READ, 	"READ" },				\
@@ -578,6 +586,65 @@ TRACE_EVENT(f2fs_reserve_new_block, 
		__entry->ofs_in_node)

);



TRACE_EVENT(f2fs_do_submit_bio,



	TP_PROTO(struct super_block *sb, int btype, bool sync, struct bio *bio),



	TP_ARGS(sb, btype, sync, bio),



	TP_STRUCT__entry(

		__field(dev_t,	dev)

		__field(int,	btype)

		__field(bool,	sync)

		__field(sector_t,	sector)

		__field(unsigned int,	size)

	),



	TP_fast_assign(

		__entry->dev		= sb->s_dev;

		__entry->btype		= btype;

		__entry->sync		= sync;

		__entry->sector		= bio->bi_sector;

		__entry->size		= bio->bi_size;

	),



	TP_printk("dev = (%d,%d), type = %s, io = %s, sector = %lld, size = %u",

		show_dev(__entry),

		show_block_type(__entry->btype),

		__entry->sync ? "sync" : "no sync",

		(unsigned long long)__entry->sector,

		__entry->size)

);



TRACE_EVENT(f2fs_submit_write_page,



	TP_PROTO(struct page *page, block_t blk_addr, int type),



	TP_ARGS(page, blk_addr, type),



	TP_STRUCT__entry(

		__field(dev_t,	dev)

		__field(ino_t,	ino)

		__field(int, type)

		__field(pgoff_t, index)

		__field(block_t, block)

	),



	TP_fast_assign(

		__entry->dev	= page->mapping->host->i_sb->s_dev;

		__entry->ino	= page->mapping->host->i_ino;

		__entry->type	= type;

		__entry->index	= page->index;

		__entry->block	= blk_addr;

	),



	TP_printk("dev = (%d,%d), ino = %lu, %s, index = %lu, blkaddr = 0x%llx",

		show_dev_ino(__entry),

		show_block_type(__entry->type),

		(unsigned long)__entry->index,

		(unsigned long long)__entry->block)

);



#endif /* _TRACE_F2FS_H */



 /* This part must be outside protection */