From beac2da7565e42be59963824899825d0cc624295 Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Mon, 23 Nov 2009 07:25:08 -0500
Subject: [PATCH] ext4: add tracepoint for ext4_forget()
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
fs/ext4/inode.c | 1 +
include/trace/events/ext4.h | 26 ++++++++++++++++++++++++++
2 files changed, 27 insertions(+)
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 554c6798597c..13de1dd751f5 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -89,6 +89,7 @@ int ext4_forget(handle_t *handle, int is_metadata, struct inode *inode,
might_sleep();
+ trace_ext4_forget(inode, is_metadata, blocknr);
BUFFER_TRACE(bh, "enter");
jbd_debug(4, "forgetting bh %p: is_metadata = %d, mode %o, "
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index d09550bf3f95..b390e1fc4a7b 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -907,6 +907,32 @@ TRACE_EVENT(ext4_mballoc_free,
__entry->result_len, __entry->result_logical)
);
+TRACE_EVENT(ext4_forget,
+ TP_PROTO(struct inode *inode, int is_metadata, __u64 block),
+
+ TP_ARGS(inode, is_metadata, block),
+
+ TP_STRUCT__entry(
+ __field( dev_t, dev )
+ __field( ino_t, ino )
+ __field( umode_t, mode )
+ __field( int, is_metadata )
+ __field( __u64, block )
+ ),
+
+ TP_fast_assign(
+ __entry->dev = inode->i_sb->s_dev;
+ __entry->ino = inode->i_ino;
+ __entry->mode = inode->i_mode;
+ __entry->is_metadata = is_metadata;
+ __entry->block = block;
+ ),
+
+ TP_printk("dev %s ino %lu mode %d is_metadata %d block %llu",
+ jbd2_dev_to_name(__entry->dev), (unsigned long) __entry->ino,
+ __entry->mode, __entry->is_metadata, __entry->block)
+);
+
#endif /* _TRACE_EXT4_H */
/* This part must be outside protection */
--
2.34.1