f2fs: add a tracepoint for f2fs_issue_discard

This patch adds a tracepoint for f2fs_issue_discard.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>

1 files changed, 23 insertions, 0 deletions

diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index e0dc355fa317..47ee70de7fed 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -727,6 +727,29 @@ TRACE_EVENT(f2fs_write_checkpoint,
                 __entry->msg)
 );
 
+TRACE_EVENT(f2fs_issue_discard,
+
+        TP_PROTO(struct super_block *sb, block_t blkstart, block_t blklen),
+
+        TP_ARGS(sb, blkstart, blklen),
+
+        TP_STRUCT__entry(
+                __field(dev_t,  dev)
+                __field(block_t, blkstart)
+                __field(block_t, blklen)
+        ),
+
+        TP_fast_assign(
+                __entry->dev    = sb->s_dev;
+                __entry->blkstart = blkstart;
+                __entry->blklen = blklen;
+        ),
+
+        TP_printk("dev = (%d,%d), blkstart = 0x%llx, blklen = 0x%llx",
+                show_dev(__entry),
+                (unsigned long long)__entry->blkstart,
+                (unsigned long long)__entry->blklen)
+);
 #endif /* _TRACE_F2FS_H */
 
  /* This part must be outside protection */