knfsd: clean up EX_RDONLY

Share a little common code, reverse the arguments for consistency, drop the
unnecessary "inline", and lowercase the name.

Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
Acked-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fs/nfsd/auth.c

@@ -9,10 +9,11 @@
 #include <linux/sunrpc/svc.h>
 #include <linux/sunrpc/svcauth.h>
 #include <linux/nfsd/nfsd.h>
+#include <linux/nfsd/export.h>
 
 #define	CAP_NFSD_MASK (CAP_FS_MASK|CAP_TO_MASK(CAP_SYS_RESOURCE))
 
-static int nfsexp_flags(struct svc_rqst *rqstp, struct svc_export *exp)
+int nfsexp_flags(struct svc_rqst *rqstp, struct svc_export *exp)
 {
 	struct exp_flavor_info *f;
 	struct exp_flavor_info *end = exp->ex_flavors + exp->ex_nflavors;

fs/nfsd/vfs.c

@@ -1797,16 +1797,9 @@ nfsd_statfs(struct svc_rqst *rqstp, struct svc_fh *fhp, struct kstatfs *stat)
 	return err;
 }
 
-static inline int EX_RDONLY(struct svc_export *exp, struct svc_rqst *rqstp)
+static int exp_rdonly(struct svc_rqst *rqstp, struct svc_export *exp)
 {
-	struct exp_flavor_info *f;
-	struct exp_flavor_info *end = exp->ex_flavors + exp->ex_nflavors;
-
-	for (f = exp->ex_flavors; f < end; f++) {
-		if (f->pseudoflavor == rqstp->rq_flavor)
-			return f->flags & NFSEXP_READONLY;
-	}
-	return exp->ex_flags & NFSEXP_READONLY;
+	return nfsexp_flags(rqstp, exp) & NFSEXP_READONLY;
 }
 
 /*
@@ -1845,7 +1838,7 @@ nfsd_permission(struct svc_rqst *rqstp, struct svc_export *exp,
 	 */
 	if (!(acc & MAY_LOCAL_ACCESS))
 		if (acc & (MAY_WRITE | MAY_SATTR | MAY_TRUNC)) {
-			if (EX_RDONLY(exp, rqstp) || IS_RDONLY(inode))
+			if (exp_rdonly(rqstp, exp) || IS_RDONLY(inode))
 				return nfserr_rofs;
 			if (/* (acc & MAY_WRITE) && */ IS_IMMUTABLE(inode))
 				return nfserr_perm;

include/linux/nfsd/export.h

@@ -116,6 +116,7 @@ struct svc_expkey {
 #define EX_NOHIDE(exp)		((exp)->ex_flags & NFSEXP_NOHIDE)
 #define EX_WGATHER(exp)		((exp)->ex_flags & NFSEXP_GATHERED_WRITES)
 
+int nfsexp_flags(struct svc_rqst *rqstp, struct svc_export *exp);
 __be32 check_nfsd_access(struct svc_export *exp, struct svc_rqst *rqstp);
 
 /*