nfsd: show lock and deleg stateids (16d36e09) · Commits · 戴 / test

fs/nfsd/nfs4state.c

+59 −0

Original line number	Diff line number	Diff line
		@@ -2338,12 +2338,66 @@ static int nfs4_show_open(struct seq_file s, struct nfs4_stid st)
		seq_printf(s, ", ");
		nfs4_show_owner(s, oo);
		seq_printf(s, " }\n");
		fput(file);

		return 0;
		}

		static int nfs4_show_lock(struct seq_file s, struct nfs4_stid st)
		{
		struct nfs4_ol_stateid *ols;
		struct nfs4_file *nf;
		struct file *file;
		struct nfs4_stateowner *oo;

		ols = openlockstateid(st);
		oo = ols->st_stateowner;
		nf = st->sc_file;
		file = find_any_file(nf);

		seq_printf(s, "- 0x%16phN: { type: lock, ", &st->sc_stateid);

		/*
		* Note: a lock stateid isn't really the same thing as a lock,
		* it's the locking state held by one owner on a file, and there
		* may be multiple (or no) lock ranges associated with it.
		* (Same for the matter is true of open stateids.)
		*/

		nfs4_show_superblock(s, file);
		/* XXX: open stateid? */
		seq_printf(s, ", ");
		nfs4_show_owner(s, oo);
		seq_printf(s, " }\n");
		fput(file);

		return 0;
		}

		static int nfs4_show_deleg(struct seq_file s, struct nfs4_stid st)
		{
		struct nfs4_delegation *ds;
		struct nfs4_file *nf;
		struct file *file;

		ds = delegstateid(st);
		nf = st->sc_file;
		file = nf->fi_deleg_file;

		seq_printf(s, "- 0x%16phN: { type: deleg, ", &st->sc_stateid);

		/* Kinda dead code as long as we only support read delegs: */
		seq_printf(s, "access: %s, ",
		ds->dl_type == NFS4_OPEN_DELEGATE_READ ? "r" : "w");

		/* XXX: lease time, whether it's being recalled. */

		nfs4_show_superblock(s, file);
		seq_printf(s, " }\n");

		return 0;
		}

		static int states_show(struct seq_file s, void v)
		{
		struct nfs4_stid *st = v;
		@@ -2351,9 +2405,14 @@ static int states_show(struct seq_file s, void v)
		switch (st->sc_type) {
		case NFS4_OPEN_STID:
		return nfs4_show_open(s, st);
		case NFS4_LOCK_STID:
		return nfs4_show_lock(s, st);
		case NFS4_DELEG_STID:
		return nfs4_show_deleg(s, st);
		default:
		return 0; /* XXX: or SEQ_SKIP? */
		}
		/* XXX: copy stateids? */
		}

		static struct seq_operations states_seq_ops = {

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