xfs: add size update tracepoint to IO completion

For improving insight into IO completion behaviour.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>

1 files changed, 8 insertions, 4 deletions

diff --git a/fs/xfs/linux-2.6/xfs_trace.h b/fs/xfs/linux-2.6/xfs_trace.h
index 3bdfcb9f52b7..fda0708ef2ea 100644
--- a/fs/xfs/linux-2.6/xfs_trace.h
+++ b/fs/xfs/linux-2.6/xfs_trace.h
@@ -998,7 +998,8 @@ DECLARE_EVENT_CLASS(xfs_simple_io_class,
         TP_STRUCT__entry(
                 __field(dev_t, dev)
                 __field(xfs_ino_t, ino)
-                __field(loff_t, size)
+                __field(loff_t, isize)
+                __field(loff_t, disize)
                 __field(loff_t, new_size)
                 __field(loff_t, offset)
                 __field(size_t, count)
@@ -1006,16 +1007,18 @@ DECLARE_EVENT_CLASS(xfs_simple_io_class,
         TP_fast_assign(
                 __entry->dev = VFS_I(ip)->i_sb->s_dev;
                 __entry->ino = ip->i_ino;
-                __entry->size = ip->i_d.di_size;
+                __entry->isize = ip->i_size;
+                __entry->disize = ip->i_d.di_size;
                 __entry->new_size = ip->i_new_size;
                 __entry->offset = offset;
                 __entry->count = count;
         ),
-        TP_printk("dev %d:%d ino 0x%llx size 0x%llx new_size 0x%llx "
+        TP_printk("dev %d:%d ino 0x%llx isize 0x%llx disize 0x%llx new_size 0x%llx "
                   "offset 0x%llx count %zd",
                   MAJOR(__entry->dev), MINOR(__entry->dev),
                   __entry->ino,
-                  __entry->size,
+                  __entry->isize,
+                  __entry->disize,
                   __entry->new_size,
                   __entry->offset,
                   __entry->count)
@@ -1028,6 +1031,7 @@ DEFINE_EVENT(xfs_simple_io_class, name,	\
 DEFINE_SIMPLE_IO_EVENT(xfs_delalloc_enospc);
 DEFINE_SIMPLE_IO_EVENT(xfs_unwritten_convert);
 DEFINE_SIMPLE_IO_EVENT(xfs_get_blocks_notfound);
+DEFINE_SIMPLE_IO_EVENT(xfs_setfilesize);
 
 DECLARE_EVENT_CLASS(xfs_itrunc_class,
         TP_PROTO(struct xfs_inode *ip, xfs_fsize_t new_size),