Commit 40a82417 authored by Olga Kornievskaia's avatar Olga Kornievskaia Committed by Trond Myklebust
Browse files

NFSv4.2 add tracepoints to FALLOCATE and DEALLOCATE 



Add a tracepoint to the FALLOCATE/DEALLOCATE operations.

Signed-off-by: default avatarOlga Kornievskaia <kolga@netapp.com>
Signed-off-by: default avatarTrond Myklebust <trond.myklebust@hammerspace.com>
parent f628d462

fs/nfs/nfs42proc.c

+4 −0
Original line number Diff line number Diff line
@@ -83,6 +83,10 @@ static int _nfs42_proc_fallocate(struct rpc_message *msg, struct file *filep, 
		status = nfs_post_op_update_inode_force_wcc(inode,

							    res.falloc_fattr);



	if (msg->rpc_proc == &nfs4_procedures[NFSPROC4_CLNT_ALLOCATE])

		trace_nfs4_fallocate(inode, &args, status);

	else

		trace_nfs4_deallocate(inode, &args, status);

	kfree(res.falloc_fattr);

	return status;

}

fs/nfs/nfs4trace.h

+56 −0
Original line number Diff line number Diff line
@@ -2127,6 +2127,62 @@ TRACE_EVENT(nfs4_llseek, 
		)

);



DECLARE_EVENT_CLASS(nfs4_sparse_event,

		TP_PROTO(

			const struct inode *inode,

			const struct nfs42_falloc_args *args,

			int error

		),



		TP_ARGS(inode, args, error),



		TP_STRUCT__entry(

			__field(unsigned long, error)

			__field(loff_t, offset)

			__field(loff_t, len)

			__field(dev_t, dev)

			__field(u32, fhandle)

			__field(u64, fileid)

			__field(int, stateid_seq)

			__field(u32, stateid_hash)

		),



		TP_fast_assign(

			__entry->error = error < 0 ? -error : 0;

			__entry->offset = args->falloc_offset;

			__entry->len = args->falloc_length;

			__entry->dev = inode->i_sb->s_dev;

			__entry->fileid = NFS_FILEID(inode);

			__entry->fhandle = nfs_fhandle_hash(NFS_FH(inode));

			__entry->stateid_seq =

				be32_to_cpu(args->falloc_stateid.seqid);

			__entry->stateid_hash =

				nfs_stateid_hash(&args->falloc_stateid);

		),



		TP_printk(

			"error=%ld (%s) fileid=%02x:%02x:%llu fhandle=0x%08x "

			"stateid=%d:0x%08x offset=%llu len=%llu",

			-__entry->error,

			show_nfs4_status(__entry->error),

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

			(unsigned long long)__entry->fileid,

			__entry->fhandle,

			__entry->stateid_seq, __entry->stateid_hash,

			(long long)__entry->offset,

			(long long)__entry->len

		)

);

#define DEFINE_NFS4_SPARSE_EVENT(name) \

	DEFINE_EVENT(nfs4_sparse_event, name, \

			TP_PROTO( \

				const struct inode *inode, \

				const struct nfs42_falloc_args *args, \

				int error \

			), \

			TP_ARGS(inode, args, error))

DEFINE_NFS4_SPARSE_EVENT(nfs4_fallocate);

DEFINE_NFS4_SPARSE_EVENT(nfs4_deallocate);

#endif /* CONFIG_NFS_V4_2 */



#endif /* CONFIG_NFS_V4_1 */