From: Olga Kornievskaia <kolga@xxxxxxxxxx>
Add a tracepoint to the CLONE operation.
Signed-off-by: Olga Kornievskaia <kolga@xxxxxxxxxx>
---
fs/nfs/nfs42proc.c | 1 +
fs/nfs/nfs4trace.h | 73 ++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 74 insertions(+)
diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c
index a072cdaf7bdc..d3d9ea71702f 100644
--- a/fs/nfs/nfs42proc.c
+++ b/fs/nfs/nfs42proc.c
@@ -1077,6 +1077,7 @@ static int _nfs42_proc_clone(struct rpc_message *msg, struct file *src_f,
status = nfs4_call_sync(server->client, server, msg,
&args.seq_args, &res.seq_res, 0);
+ trace_nfs4_clone(src_inode, dst_inode, &args, status);
if (status == 0) {
nfs42_copy_dest_done(dst_inode, dst_offset, count);
status = nfs_post_op_update_inode(dst_inode, res.dst_fattr);
diff --git a/fs/nfs/nfs4trace.h b/fs/nfs/nfs4trace.h
index 4beb59d78ff3..cc6537a20ebe 100644
--- a/fs/nfs/nfs4trace.h
+++ b/fs/nfs/nfs4trace.h
@@ -2641,6 +2641,79 @@ TRACE_EVENT(nfs4_copy,
)
);
+TRACE_EVENT(nfs4_clone,
+ TP_PROTO(
+ const struct inode *src_inode,
+ const struct inode *dst_inode,
+ const struct nfs42_clone_args *args,
+ int error
+ ),
+
+ TP_ARGS(src_inode, dst_inode, args, error),
+
+ TP_STRUCT__entry(
+ __field(unsigned long, error)
+ __field(u32, src_fhandle)
+ __field(u32, src_fileid)
+ __field(u32, dst_fhandle)
+ __field(u32, dst_fileid)
+ __field(dev_t, src_dev)
+ __field(dev_t, dst_dev)
+ __field(loff_t, src_offset)
+ __field(loff_t, dst_offset)
+ __field(int, src_stateid_seq)
+ __field(u32, src_stateid_hash)
+ __field(int, dst_stateid_seq)
+ __field(u32, dst_stateid_hash)
+ __field(loff_t, len)
+ ),
+
+ TP_fast_assign(
+ const struct nfs_inode *src_nfsi = NFS_I(src_inode);
+ const struct nfs_inode *dst_nfsi = NFS_I(dst_inode);
+
+ __entry->src_fileid = src_nfsi->fileid;
+ __entry->src_dev = src_inode->i_sb->s_dev;
+ __entry->src_fhandle = nfs_fhandle_hash(args->src_fh);
+ __entry->src_offset = args->src_offset;
+ __entry->dst_fileid = dst_nfsi->fileid;
+ __entry->dst_dev = dst_inode->i_sb->s_dev;
+ __entry->dst_fhandle = nfs_fhandle_hash(args->dst_fh);
+ __entry->dst_offset = args->dst_offset;
+ __entry->len = args->count;
+ __entry->error = error < 0 ? -error : 0;
+ __entry->src_stateid_seq =
+ be32_to_cpu(args->src_stateid.seqid);
+ __entry->src_stateid_hash =
+ nfs_stateid_hash(&args->src_stateid);
+ __entry->dst_stateid_seq =
+ be32_to_cpu(args->dst_stateid.seqid);
+ __entry->dst_stateid_hash =
+ nfs_stateid_hash(&args->dst_stateid);
+ ),
+
+ TP_printk(
+ "error=%ld (%s) src_fileid=%02x:%02x:%llu "
+ "src_fhandle=0x%08x dst_fileid=%02x:%02x:%llu "
+ "dst_fhandle=0x%08x src_stateid=%d:0x%08x "
+ "dst_stateid=%d:0x%08x src_offset=%llu "
+ "dst_offset=%llu len=%llu",
+ -__entry->error,
+ show_nfsv4_errors(__entry->error),
+ MAJOR(__entry->src_dev), MINOR(__entry->src_dev),
+ (unsigned long long)__entry->src_fileid,
+ __entry->src_fhandle,
+ MAJOR(__entry->dst_dev), MINOR(__entry->dst_dev),
+ (unsigned long long)__entry->dst_fileid,
+ __entry->dst_fhandle,
+ __entry->src_stateid_seq, __entry->src_stateid_hash,
+ __entry->dst_stateid_seq, __entry->dst_stateid_hash,
+ __entry->src_offset,
+ __entry->dst_offset,
+ __entry->len
+ )
+);
+
#endif /* CONFIG_NFS_V4_1 */
#endif /* _TRACE_NFS4_H */
--
2.27.0
