NFSv4: Add tracepoints for debugging getattr (b5f875a9) · Commits · e / devices / android_kernel_oneplus_sm7250

fs/nfs/nfs4proc.c

+5 −2

Original line number	Diff line number	Diff line
		@@ -2697,6 +2697,7 @@ static int nfs4_lookup_root(struct nfs_server server, struct nfs_fh fhandle,
		int err;
		do {
		err = _nfs4_lookup_root(server, fhandle, info);
		trace_nfs4_lookup_root(server, fhandle, info->fattr, err);
		switch (err) {
		case 0:
		case -NFS4ERR_WRONGSEC:
		@@ -2906,8 +2907,9 @@ static int nfs4_proc_getattr(struct nfs_server server, struct nfs_fh fhandle,
		struct nfs4_exception exception = { };
		int err;
		do {
		err = nfs4_handle_exception(server,
		_nfs4_proc_getattr(server, fhandle, fattr, label),
		err = _nfs4_proc_getattr(server, fhandle, fattr, label);
		trace_nfs4_getattr(server, fhandle, fattr, err);
		err = nfs4_handle_exception(server, err,
		&exception);
		} while (exception.retry);
		return err;
		@@ -3760,6 +3762,7 @@ static int nfs4_do_fsinfo(struct nfs_server server, struct nfs_fh fhandle, str

		do {
		err = _nfs4_do_fsinfo(server, fhandle, fsinfo);
		trace_nfs4_fsinfo(server, fhandle, fsinfo->fattr, err);
		if (err == 0) {
		struct nfs_client *clp = server->nfs_client;

fs/nfs/nfs4trace.h

+69 −0

Original line number	Diff line number	Diff line
		@@ -174,6 +174,24 @@
		{ ((__force unsigned long)FMODE_WRITE), "WRITE" }, \
		{ ((__force unsigned long)FMODE_EXEC), "EXEC" })

		#define show_nfs_fattr_flags(valid) \
		__print_flags((unsigned long)valid, "\|", \
		{ NFS_ATTR_FATTR_TYPE, "TYPE" }, \
		{ NFS_ATTR_FATTR_MODE, "MODE" }, \
		{ NFS_ATTR_FATTR_NLINK, "NLINK" }, \
		{ NFS_ATTR_FATTR_OWNER, "OWNER" }, \
		{ NFS_ATTR_FATTR_GROUP, "GROUP" }, \
		{ NFS_ATTR_FATTR_RDEV, "RDEV" }, \
		{ NFS_ATTR_FATTR_SIZE, "SIZE" }, \
		{ NFS_ATTR_FATTR_FSID, "FSID" }, \
		{ NFS_ATTR_FATTR_FILEID, "FILEID" }, \
		{ NFS_ATTR_FATTR_ATIME, "ATIME" }, \
		{ NFS_ATTR_FATTR_MTIME, "MTIME" }, \
		{ NFS_ATTR_FATTR_CTIME, "CTIME" }, \
		{ NFS_ATTR_FATTR_CHANGE, "CHANGE" }, \
		{ NFS_ATTR_FATTR_OWNER_NAME, "OWNER_NAME" }, \
		{ NFS_ATTR_FATTR_GROUP_NAME, "GROUP_NAME" })

		DECLARE_EVENT_CLASS(nfs4_clientid_event,
		TP_PROTO(
		const struct nfs_client *clp,
		@@ -627,6 +645,57 @@ DEFINE_NFS4_INODE_EVENT(nfs4_set_security_label);
		DEFINE_NFS4_INODE_EVENT(nfs4_recall_delegation);
		DEFINE_NFS4_INODE_EVENT(nfs4_delegreturn);

		DECLARE_EVENT_CLASS(nfs4_getattr_event,
		TP_PROTO(
		const struct nfs_server *server,
		const struct nfs_fh *fhandle,
		const struct nfs_fattr *fattr,
		int error
		),

		TP_ARGS(server, fhandle, fattr, error),

		TP_STRUCT__entry(
		__field(dev_t, dev)
		__field(u32, fhandle)
		__field(u64, fileid)
		__field(unsigned int, valid)
		__field(int, error)
		),

		TP_fast_assign(
		__entry->dev = server->s_dev;
		__entry->valid = fattr->valid;
		__entry->fhandle = nfs_fhandle_hash(fhandle);
		__entry->fileid = (fattr->valid & NFS_ATTR_FATTR_FILEID) ? fattr->fileid : 0;
		__entry->error = error;
		),

		TP_printk(
		"error=%d (%s) fileid=%02x:%02x:%llu fhandle=0x%08x "
		"valid=%s",
		__entry->error,
		show_nfsv4_errors(__entry->error),
		MAJOR(__entry->dev), MINOR(__entry->dev),
		(unsigned long long)__entry->fileid,
		__entry->fhandle,
		show_nfs_fattr_flags(__entry->valid)
		)
		);

		#define DEFINE_NFS4_GETATTR_EVENT(name) \
		DEFINE_EVENT(nfs4_getattr_event, name, \
		TP_PROTO( \
		const struct nfs_server *server, \
		const struct nfs_fh *fhandle, \
		const struct nfs_fattr *fattr, \
		int error \
		), \
		TP_ARGS(server, fhandle, fattr, error))
		DEFINE_NFS4_GETATTR_EVENT(nfs4_getattr);
		DEFINE_NFS4_GETATTR_EVENT(nfs4_lookup_root);
		DEFINE_NFS4_GETATTR_EVENT(nfs4_fsinfo);

		DECLARE_EVENT_CLASS(nfs4_idmap_event,
		TP_PROTO(
		const char *name,