This patch adds a tracepoint for f2fs_submit_read_bio. Signed-off-by: Chao Yu <chao2...@samsung.com> --- fs/f2fs/data.c | 2 ++ include/trace/events/f2fs.h | 27 +++++++++++++++++++++++++++ 2 files changed, 29 insertions(+)
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 0ca93be..c9e9d79 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -407,6 +407,8 @@ void f2fs_submit_read_bio(struct f2fs_sb_info *sbi, int rw) if (!io->bio) return; + trace_f2fs_submit_read_bio(sbi->sb, rw, io->bio); + mutex_lock(&io->io_mutex); if (io->bio) { submit_bio(rw, io->bio); diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h index 571f39a..ac970e3 100644 --- a/include/trace/events/f2fs.h +++ b/include/trace/events/f2fs.h @@ -453,6 +453,33 @@ TRACE_EVENT_CONDITION(f2fs_readpage, show_bio_type(__entry->type)) ); +TRACE_EVENT(f2fs_submit_read_bio, + + TP_PROTO(struct super_block *sb, int rw, struct bio *bio), + + TP_ARGS(sb, rw, bio), + + TP_STRUCT__entry( + __field(dev_t, dev) + __field(int, rw) + __field(sector_t, sector) + __field(unsigned int, size) + ), + + TP_fast_assign( + __entry->dev = sb->s_dev; + __entry->rw = rw; + __entry->sector = bio->bi_sector; + __entry->size = bio->bi_size; + ), + + TP_printk("dev = (%d,%d), bio_type = %s, sector = %lld, size = %u", + show_dev(__entry), + show_bio_type(__entry->rw), + (unsigned long long)__entry->sector, + __entry->size) +); + TRACE_EVENT(f2fs_submit_read_page, TP_PROTO(struct page *page, block_t blk_addr, int rw), -- 1.7.9.5 ------------------------------------------------------------------------------ Shape the Mobile Experience: Free Subscription Software experts and developers: Be at the forefront of tech innovation. Intel(R) Software Adrenaline delivers strategic insight and game-changing conversations that shape the rapidly evolving mobile landscape. Sign up now. http://pubads.g.doubleclick.net/gampad/clk?id=63431311&iu=/4140/ostg.clktrk _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel