1 files changed, 91 insertions, 0 deletions
diff --git a/fs/nfs/nfstrace.h b/fs/nfs/nfstrace.h
index 59f4ca803fd0..012bd7339862 100644
--- a/fs/nfs/nfstrace.h
+++ b/fs/nfs/nfstrace.h
@@ -1215,6 +1215,97 @@ TRACE_EVENT(nfs_readpage_short,
 		)
 );
 
+DECLARE_EVENT_CLASS(nfs_fscache_page_event,
+		TP_PROTO(
+			const struct inode *inode,
+			struct page *page
+		),
+
+		TP_ARGS(inode, page),
+
+		TP_STRUCT__entry(
+			__field(dev_t, dev)
+			__field(u32, fhandle)
+			__field(u64, fileid)
+			__field(loff_t, offset)
+		),
+
+		TP_fast_assign(
+			const struct nfs_inode *nfsi = NFS_I(inode);
+			const struct nfs_fh *fh = &nfsi->fh;
+
+			__entry->offset = page_index(page) << PAGE_SHIFT;
+			__entry->dev = inode->i_sb->s_dev;
+			__entry->fileid = nfsi->fileid;
+			__entry->fhandle = nfs_fhandle_hash(fh);
+		),
+
+		TP_printk(
+			"fileid=%02x:%02x:%llu fhandle=0x%08x "
+			"offset=%lld",
+			MAJOR(__entry->dev), MINOR(__entry->dev),
+			(unsigned long long)__entry->fileid,
+			__entry->fhandle,
+			(long long)__entry->offset
+		)
+);
+DECLARE_EVENT_CLASS(nfs_fscache_page_event_done,
+		TP_PROTO(
+			const struct inode *inode,
+			struct page *page,
+			int error
+		),
+
+		TP_ARGS(inode, page, error),
+
+		TP_STRUCT__entry(
+			__field(int, error)
+			__field(dev_t, dev)
+			__field(u32, fhandle)
+			__field(u64, fileid)
+			__field(loff_t, offset)
+		),
+
+		TP_fast_assign(
+			const struct nfs_inode *nfsi = NFS_I(inode);
+			const struct nfs_fh *fh = &nfsi->fh;
+
+			__entry->offset = page_index(page) << PAGE_SHIFT;
+			__entry->dev = inode->i_sb->s_dev;
+			__entry->fileid = nfsi->fileid;
+			__entry->fhandle = nfs_fhandle_hash(fh);
+			__entry->error = error;
+		),
+
+		TP_printk(
+			"fileid=%02x:%02x:%llu fhandle=0x%08x "
+			"offset=%lld error=%d",
+			MAJOR(__entry->dev), MINOR(__entry->dev),
+			(unsigned long long)__entry->fileid,
+			__entry->fhandle,
+			(long long)__entry->offset, __entry->error
+		)
+);
+#define DEFINE_NFS_FSCACHE_PAGE_EVENT(name) \
+	DEFINE_EVENT(nfs_fscache_page_event, name, \
+			TP_PROTO( \
+				const struct inode *inode, \
+				struct page *page \
+			), \
+			TP_ARGS(inode, page))
+#define DEFINE_NFS_FSCACHE_PAGE_EVENT_DONE(name) \
+	DEFINE_EVENT(nfs_fscache_page_event_done, name, \
+			TP_PROTO( \
+				const struct inode *inode, \
+				struct page *page, \
+				int error \
+			), \
+			TP_ARGS(inode, page, error))
+DEFINE_NFS_FSCACHE_PAGE_EVENT(nfs_fscache_read_page);
+DEFINE_NFS_FSCACHE_PAGE_EVENT_DONE(nfs_fscache_read_page_exit);
+DEFINE_NFS_FSCACHE_PAGE_EVENT(nfs_fscache_write_page);
+DEFINE_NFS_FSCACHE_PAGE_EVENT_DONE(nfs_fscache_write_page_exit);
+
 TRACE_EVENT(nfs_pgio_error,
 	TP_PROTO(
 		const struct nfs_pgio_header *hdr,