NFSv4: Fix another potential state manager deadlock



Don't hold the NFSv4 sequence id while we check for open permission.
The call to ACCESS may block due to reboot recovery.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

parent f05c124a

fs/nfs/nfs4proc.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1046,6 +1046,7 @@ static struct nfs4_state nfs4_try_open_cached(struct nfs4_opendata opendata)
		/* Save the delegation */
		nfs4_stateid_copy(&stateid, &delegation->stateid);
		rcu_read_unlock();
		nfs_release_seqid(opendata->o_arg.seqid);
		ret = nfs_may_open(state->inode, state->owner->so_cred, open_mode);
		if (ret != 0)
		goto out;