NFS: Trace short NFS READs

		)

);

TRACE_EVENT(nfs_readpage_short,

		TP_PROTO(

			const struct rpc_task *task,

			const struct nfs_pgio_header *hdr

		),

		TP_ARGS(task, hdr),

		TP_STRUCT__entry(

			__field(dev_t, dev)

			__field(u32, fhandle)

			__field(u64, fileid)

			__field(loff_t, offset)

			__field(u32, arg_count)

			__field(u32, res_count)

			__field(bool, eof)

			__field(int, status)

		),

		TP_fast_assign(

			const struct inode *inode = hdr->inode;

			const struct nfs_inode *nfsi = NFS_I(inode);

			const struct nfs_fh *fh = hdr->args.fh ?

						  hdr->args.fh : &nfsi->fh;

			__entry->status = task->tk_status;

			__entry->offset = hdr->args.offset;

			__entry->arg_count = hdr->args.count;

			__entry->res_count = hdr->res.count;

			__entry->eof = hdr->res.eof;

			__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 count=%u res=%u status=%d%s",

			MAJOR(__entry->dev), MINOR(__entry->dev),

			(unsigned long long)__entry->fileid,

			__entry->fhandle,

			(long long)__entry->offset, __entry->arg_count,

			__entry->res_count, __entry->status,

			__entry->eof ? " eof" : ""

		)

);

TRACE_DEFINE_ENUM(NFS_UNSTABLE);

TRACE_DEFINE_ENUM(NFS_DATA_SYNC);

TRACE_DEFINE_ENUM(NFS_FILE_SYNC);

	/* This is a short read! */

	nfs_inc_stats(hdr->inode, NFSIOS_SHORTREAD);

	trace_nfs_readpage_short(task, hdr);

	/* Has the server at least made some progress? */

	if (resp->count == 0) {

		nfs_set_pgio_error(hdr, -EIO, argp->offset);