@@ -25,6 +25,7 @@
#include <linux/blkdev.h>
#include <linux/backing-dev.h>
#include <linux/buffer_head.h>
+#include <trace/events/vfs.h>
#include "internal.h"
#define inode_to_bdi(inode) ((inode)->i_mapping->backing_dev_info)
@@ -1071,6 +1072,8 @@ void __mark_inode_dirty(struct inode *inode, int flags)
if ((inode->i_state & flags) == flags)
return;
+ trace_dirty_inode(inode, current);
+
if (unlikely(block_dump))
block_dump___mark_inode_dirty(inode);
@@ -1624,3 +1624,7 @@ void init_special_inode(struct inode *inode, umode_t mode, dev_t rdev)
inode->i_ino);
}
EXPORT_SYMBOL(init_special_inode);
+
+#define CREATE_TRACE_POINTS
+#include <trace/events/vfs.h>
+
new file mode 100644
@@ -0,0 +1,53 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM vfs
+
+#if !defined(_TRACE_VFS_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_VFS_H
+
+/*
+ * Tracepoint for dirtying an inode:
+ */
+TRACE_EVENT(dirty_inode,
+
+ TP_PROTO(struct inode *inode, struct task_struct *task),
+
+ TP_ARGS(inode, task),
+
+ TP_STRUCT__entry(
+ __array( char, comm, TASK_COMM_LEN )
+ __field( pid_t, pid )
+ __array( char, dev, 16 )
+ __array( char, file, 32 )
+ ),
+
+ TP_fast_assign(
+ if (inode->i_ino || strcmp(inode->i_sb->s_id, "bdev")) {
+ struct dentry *dentry;
+ const char *name = "?";
+
+ dentry = d_find_alias(inode);
+ if (dentry) {
+ spin_lock(&dentry->d_lock);
+ name = (const char *) dentry->d_name.name;
+ }
+
+ memcpy(__entry->comm, task->comm, TASK_COMM_LEN);
+ __entry->pid = task->pid;
+ strlcpy(__entry->file, name, 32);
+ strlcpy(__entry->dev, inode->i_sb->s_id, 16);
+
+ if (dentry) {
+ spin_unlock(&dentry->d_lock);
+ dput(dentry);
+ }
+ }
+ ),
+
+ TP_printk("task=%i (%s) file=%s dev=%s",
+ __entry->pid, __entry->comm, __entry->file, __entry->dev)
+);
+
+#endif /* _TRACE_VFS_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>