ext4: Add new ext4 inode tracepoints

Add ext4_evict_inode, ext4_drop_inode, ext4_mark_inode_dirty, and
ext4_begin_ordered_truncate()

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

1 files changed, 97 insertions, 0 deletions

diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index 289010d3270b..e5e345fb2a5c 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -98,6 +98,103 @@ TRACE_EVENT(ext4_allocate_inode,
                   (unsigned long) __entry->dir, __entry->mode)
 );
 
+TRACE_EVENT(ext4_evict_inode,
+        TP_PROTO(struct inode *inode),
+
+        TP_ARGS(inode),
+
+        TP_STRUCT__entry(
+                __field(        int,   dev_major                )
+                __field(        int,   dev_minor                )
+                __field(        ino_t,  ino                     )
+                __field(        int,    nlink                   )
+        ),
+
+        TP_fast_assign(
+                __entry->dev_major = MAJOR(inode->i_sb->s_dev);
+                __entry->dev_minor = MINOR(inode->i_sb->s_dev);
+                __entry->ino    = inode->i_ino;
+                __entry->nlink  = inode->i_nlink;
+        ),
+
+        TP_printk("dev %d,%d ino %lu nlink %d",
+                  __entry->dev_major, __entry->dev_minor,
+                  (unsigned long) __entry->ino, __entry->nlink)
+);
+
+TRACE_EVENT(ext4_drop_inode,
+        TP_PROTO(struct inode *inode, int drop),
+
+        TP_ARGS(inode, drop),
+
+        TP_STRUCT__entry(
+                __field(        int,    dev_major               )
+                __field(        int,    dev_minor               )
+                __field(        ino_t,  ino                     )
+                __field(        int,    drop                    )
+        ),
+
+        TP_fast_assign(
+                __entry->dev_major = MAJOR(inode->i_sb->s_dev);
+                __entry->dev_minor = MINOR(inode->i_sb->s_dev);
+                __entry->ino    = inode->i_ino;
+                __entry->drop   = drop;
+        ),
+
+        TP_printk("dev %d,%d ino %lu drop %d",
+                  __entry->dev_major, __entry->dev_minor,
+                  (unsigned long) __entry->ino, __entry->drop)
+);
+
+TRACE_EVENT(ext4_mark_inode_dirty,
+        TP_PROTO(struct inode *inode, unsigned long IP),
+
+        TP_ARGS(inode, IP),
+
+        TP_STRUCT__entry(
+                __field(        int,    dev_major               )
+                __field(        int,    dev_minor               )
+                __field(        ino_t,  ino                     )
+                __field(unsigned long,  ip                      )
+        ),
+
+        TP_fast_assign(
+                __entry->dev_major = MAJOR(inode->i_sb->s_dev);
+                __entry->dev_minor = MINOR(inode->i_sb->s_dev);
+                __entry->ino    = inode->i_ino;
+                __entry->ip     = IP;
+        ),
+
+        TP_printk("dev %d,%d ino %lu caller %pF",
+                  __entry->dev_major, __entry->dev_minor,
+                  (unsigned long) __entry->ino, (void *)__entry->ip)
+);
+
+TRACE_EVENT(ext4_begin_ordered_truncate,
+        TP_PROTO(struct inode *inode, loff_t new_size),
+
+        TP_ARGS(inode, new_size),
+
+        TP_STRUCT__entry(
+                __field(        int,    dev_major               )
+                __field(        int,    dev_minor               )
+                __field(        ino_t,  ino                     )
+                __field(        loff_t, new_size                )
+        ),
+
+        TP_fast_assign(
+                __entry->dev_major      = MAJOR(inode->i_sb->s_dev);
+                __entry->dev_minor      = MINOR(inode->i_sb->s_dev);
+                __entry->ino            = inode->i_ino;
+                __entry->new_size       = new_size;
+        ),
+
+        TP_printk("dev %d,%d ino %lu new_size %lld",
+                  __entry->dev_major, __entry->dev_minor,
+                  (unsigned long) __entry->ino,
+                  (long long) __entry->new_size)
+);
+
 DECLARE_EVENT_CLASS(ext4__write_begin,
 
         TP_PROTO(struct inode *inode, loff_t pos, unsigned int len,