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f2fs: add tracepoints for write page operations

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

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Pankaj Kumar <pankaj.km@samsung.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
[Jaegeuk: remove unnecessary tracepoints]
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This commit is contained in:
Namjae Jeon 2013-04-23 17:51:43 +09:00 committed by Jaegeuk Kim
parent c01e285324
commit 6ec178dac6
2 changed files with 72 additions and 0 deletions
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5
fs/f2fs/segment.c
View file

@ -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 @@ alloc_new:
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)

67
include/trace/events/f2fs.h
View file

@ -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 */