f2fs: adds a tracepoint for submit_read_page

This patch adds a tracepoint for submit_read_page.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
[Jaegeuk Kim: integrate tracepoints of f2fs_submit_read(_write)_page]
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>

1 files changed, 21 insertions, 4 deletions

diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 47ee70de7fed..73cc5f07d1ba 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -674,15 +674,16 @@ DEFINE_EVENT(f2fs__page, f2fs_vm_page_mkwrite,
         TP_ARGS(page, type)
 );
 
-TRACE_EVENT(f2fs_submit_write_page,
+DECLARE_EVENT_CLASS(f2fs_io_page,
 
-        TP_PROTO(struct page *page, block_t blk_addr, int type),
+        TP_PROTO(struct page *page, int rw, int type, block_t blk_addr),
 
-        TP_ARGS(page, blk_addr, type),
+        TP_ARGS(page, rw, type, blk_addr),
 
         TP_STRUCT__entry(
                 __field(dev_t,  dev)
                 __field(ino_t,  ino)
+                __field(int, rw)
                 __field(int, type)
                 __field(pgoff_t, index)
                 __field(block_t, block)
@@ -691,18 +692,34 @@ TRACE_EVENT(f2fs_submit_write_page,
         TP_fast_assign(
                 __entry->dev    = page->mapping->host->i_sb->s_dev;
                 __entry->ino    = page->mapping->host->i_ino;
+                __entry->rw     = rw;
                 __entry->type   = type;
                 __entry->index  = page->index;
                 __entry->block  = blk_addr;
         ),
 
-        TP_printk("dev = (%d,%d), ino = %lu, %s, index = %lu, blkaddr = 0x%llx",
+        TP_printk("dev = (%d,%d), ino = %lu, %s, %s, index = %lu, blkaddr = 0x%llx",
                 show_dev_ino(__entry),
+                show_bio_type(__entry->rw),
                 show_block_type(__entry->type),
                 (unsigned long)__entry->index,
                 (unsigned long long)__entry->block)
 );
 
+DEFINE_EVENT(f2fs_io_page, f2fs_submit_write_page,
+
+        TP_PROTO(struct page *page, int rw, int type, block_t blk_addr),
+
+        TP_ARGS(page, rw, type, blk_addr)
+);
+
+DEFINE_EVENT(f2fs_io_page, f2fs_submit_read_page,
+
+        TP_PROTO(struct page *page, int rw, int type, block_t blk_addr),
+
+        TP_ARGS(page, rw, type, blk_addr)
+);
+
 TRACE_EVENT(f2fs_write_checkpoint,
 
         TP_PROTO(struct super_block *sb, bool is_umount, char *msg),