NFS: Improve tracing of nfs_wb_folio()

Include info about which folio is being traced.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

Author: Trond Myklebust

fs/nfs/nfstrace.h

@@ -152,8 +152,6 @@ DEFINE_NFS_INODE_EVENT(nfs_getattr_enter);
 DEFINE_NFS_INODE_EVENT_DONE(nfs_getattr_exit);
 DEFINE_NFS_INODE_EVENT(nfs_setattr_enter);
 DEFINE_NFS_INODE_EVENT_DONE(nfs_setattr_exit);
-DEFINE_NFS_INODE_EVENT(nfs_writeback_page_enter);
-DEFINE_NFS_INODE_EVENT_DONE(nfs_writeback_page_exit);
 DEFINE_NFS_INODE_EVENT(nfs_writeback_inode_enter);
 DEFINE_NFS_INODE_EVENT_DONE(nfs_writeback_inode_exit);
 DEFINE_NFS_INODE_EVENT(nfs_fsync_enter);
@@ -1032,6 +1030,9 @@ DECLARE_EVENT_CLASS(nfs_folio_event_done,
 DEFINE_NFS_FOLIO_EVENT(nfs_aop_readpage);
 DEFINE_NFS_FOLIO_EVENT_DONE(nfs_aop_readpage_done);
 
+DEFINE_NFS_FOLIO_EVENT(nfs_writeback_folio);
+DEFINE_NFS_FOLIO_EVENT_DONE(nfs_writeback_folio_done);
+
 DEFINE_NFS_FOLIO_EVENT(nfs_invalidate_folio);
 DEFINE_NFS_FOLIO_EVENT_DONE(nfs_launder_folio_done);
 

fs/nfs/write.c

@@ -2093,7 +2093,7 @@ int nfs_wb_folio(struct inode *inode, struct folio *folio)
 	};
 	int ret;
 
-	trace_nfs_writeback_page_enter(inode);
+	trace_nfs_writeback_folio(inode, folio);
 
 	for (;;) {
 		folio_wait_writeback(folio);
@@ -2111,7 +2111,7 @@ int nfs_wb_folio(struct inode *inode, struct folio *folio)
 			goto out_error;
 	}
 out_error:
-	trace_nfs_writeback_page_exit(inode, ret);
+	trace_nfs_writeback_folio_done(inode, folio, ret);
 	return ret;
 }