diff mbox

nfsd: don't support msnfs export option

Message ID 20110111192232.GA28537@fieldses.org
State RFC, archived
Headers show

Commit Message

Bruce Fields Jan. 11, 2011, 7:22 p.m. UTC
None
diff mbox

Patch

diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index c0fcb7a..8b31e5f 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -1,4 +1,3 @@ 
-#define MSNFS	/* HACK HACK */
 /*
  * NFS exporting and validation.
  *
@@ -1444,9 +1443,6 @@  static struct flags {
 	{ NFSEXP_NOSUBTREECHECK, {"no_subtree_check", ""}},
 	{ NFSEXP_NOAUTHNLM, {"insecure_locks", ""}},
 	{ NFSEXP_V4ROOT, {"v4root", ""}},
-#ifdef MSNFS
-	{ NFSEXP_MSNFS, {"msnfs", ""}},
-#endif
 	{ 0, {"", ""}}
 };
 
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index b991125..f8919f5 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -1,4 +1,3 @@ 
-#define MSNFS	/* HACK HACK */
 /*
  * File operations used by nfsd. Some of these have been ripped from
  * other parts of the kernel because they weren't exported, others
@@ -875,15 +874,6 @@  static int nfsd_direct_splice_actor(struct pipe_inode_info *pipe,
 	return __splice_from_pipe(pipe, sd, nfsd_splice_actor);
 }
 
-static inline int svc_msnfs(struct svc_fh *ffhp)
-{
-#ifdef MSNFS
-	return (ffhp->fh_export->ex_flags & NFSEXP_MSNFS);
-#else
-	return 0;
-#endif
-}
-
 static __be32
 nfsd_vfs_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
               loff_t offset, struct kvec *vec, int vlen, unsigned long *count)
@@ -896,9 +886,6 @@  nfsd_vfs_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
 	err = nfserr_perm;
 	inode = file->f_path.dentry->d_inode;
 
-	if (svc_msnfs(fhp) && !lock_may_read(inode, offset, *count))
-		goto out;
-
 	if (file->f_op->splice_read && rqstp->rq_splice_ok) {
 		struct splice_desc sd = {
 			.len		= 0,
@@ -988,14 +975,6 @@  nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
 	int			stable = *stablep;
 	int			use_wgather;
 
-#ifdef MSNFS
-	err = nfserr_perm;
-
-	if ((fhp->fh_export->ex_flags & NFSEXP_MSNFS) &&
-		(!lock_may_write(file->f_path.dentry->d_inode, offset, *cnt)))
-		goto out;
-#endif
-
 	dentry = file->f_path.dentry;
 	inode = dentry->d_inode;
 	exp   = fhp->fh_export;
@@ -1751,13 +1730,6 @@  nfsd_rename(struct svc_rqst *rqstp, struct svc_fh *ffhp, char *fname, int flen,
 	if (ndentry == trap)
 		goto out_dput_new;
 
-	if (svc_msnfs(ffhp) &&
-		((atomic_read(&odentry->d_count) > 1)
-		 || (atomic_read(&ndentry->d_count) > 1))) {
-			host_err = -EPERM;
-			goto out_dput_new;
-	}
-
 	host_err = -EXDEV;
 	if (ffhp->fh_export->ex_path.mnt != tfhp->fh_export->ex_path.mnt)
 		goto out_dput_new;
@@ -1836,17 +1808,10 @@  nfsd_unlink(struct svc_rqst *rqstp, struct svc_fh *fhp, int type,
 	if (host_err)
 		goto out_nfserr;
 
-	if (type != S_IFDIR) { /* It's UNLINK */
-#ifdef MSNFS
-		if ((fhp->fh_export->ex_flags & NFSEXP_MSNFS) &&
-			(atomic_read(&rdentry->d_count) > 1)) {
-			host_err = -EPERM;
-		} else
-#endif
+	if (type != S_IFDIR)
 		host_err = vfs_unlink(dirp, rdentry);
-	} else { /* It's RMDIR */
+	else
 		host_err = vfs_rmdir(dirp, rdentry);
-	}
 
 	dput(rdentry);
 
diff --git a/include/linux/nfsd/export.h b/include/linux/nfsd/export.h
index 8ae78a6..bd31615 100644
--- a/include/linux/nfsd/export.h
+++ b/include/linux/nfsd/export.h
@@ -35,7 +35,7 @@ 
 #define NFSEXP_NOHIDE		0x0200
 #define NFSEXP_NOSUBTREECHECK	0x0400
 #define	NFSEXP_NOAUTHNLM	0x0800		/* Don't authenticate NLM requests - just trust */
-#define NFSEXP_MSNFS		0x1000	/* do silly things that MS clients expect */
+#define NFSEXP_MSNFS		0x1000	/* do silly things that MS clients expect; no longer supported */
 #define NFSEXP_FSID		0x2000
 #define	NFSEXP_CROSSMOUNT	0x4000
 #define	NFSEXP_NOACL		0x8000	/* reserved for possible ACL related use */