->permission() sanitizing: don't pass flags to generic_permission()

redundant; all callers get it duplicated in mask & MAY_NOT_BLOCK and none of
them removes that bit.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/afs/security.c

@@ -350,7 +350,7 @@ int afs_permission(struct inode *inode, int mask, unsigned int flags)
 	}
 
 	key_put(key);
-	ret = generic_permission(inode, mask, flags);
+	ret = generic_permission(inode, mask);
 	_leave(" = %d", ret);
 	return ret;
 

fs/btrfs/inode.c

@@ -7339,7 +7339,7 @@ static int btrfs_permission(struct inode *inode, int mask, unsigned int flags)
 		return -EROFS;
 	if ((BTRFS_I(inode)->flags & BTRFS_INODE_READONLY) && (mask & MAY_WRITE))
 		return -EACCES;
-	return generic_permission(inode, mask, flags);
+	return generic_permission(inode, mask);
 }
 
 static const struct inode_operations btrfs_dir_inode_operations = {

fs/ceph/inode.c

@@ -1805,7 +1805,7 @@ int ceph_permission(struct inode *inode, int mask, unsigned int flags)
 	err = ceph_do_getattr(inode, CEPH_CAP_AUTH_SHARED);
 
 	if (!err)
-		err = generic_permission(inode, mask, flags);
+		err = generic_permission(inode, mask);
 	return err;
 }
 

fs/cifs/cifsfs.c

@@ -239,7 +239,7 @@ static int cifs_permission(struct inode *inode, int mask, unsigned int flags)
 		on the client (above and beyond ACL on servers) for
 		servers which do not support setting and viewing mode bits,
 		so allowing client to check permissions is useful */
-		return generic_permission(inode, mask, flags);
+		return generic_permission(inode, mask);
 }
 
 static struct kmem_cache *cifs_inode_cachep;

fs/fuse/dir.c

@@ -1018,7 +1018,7 @@ static int fuse_permission(struct inode *inode, int mask, unsigned int flags)
 	}
 
 	if (fc->flags & FUSE_DEFAULT_PERMISSIONS) {
-		err = generic_permission(inode, mask, flags);
+		err = generic_permission(inode, mask);
 
 		/* If permission is denied, try to refresh file
 		   attributes.  This is also needed, because the root
@@ -1026,8 +1026,7 @@ static int fuse_permission(struct inode *inode, int mask, unsigned int flags)
 		if (err == -EACCES && !refreshed) {
 			err = fuse_perm_getattr(inode, flags);
 			if (!err)
-				err = generic_permission(inode, mask,
-							flags);
+				err = generic_permission(inode, mask);
 		}
 
 		/* Note: the opposite of the above test does not

fs/gfs2/inode.c

@@ -1564,7 +1564,7 @@ int gfs2_permission(struct inode *inode, int mask, unsigned int flags)
 	if ((mask & MAY_WRITE) && IS_IMMUTABLE(inode))
 		error = -EACCES;
 	else
-		error = generic_permission(inode, mask, flags);
+		error = generic_permission(inode, mask);
 	if (unlock)
 		gfs2_glock_dq_uninit(&i_gh);
 

fs/hostfs/hostfs_kern.c

@@ -770,7 +770,7 @@ int hostfs_permission(struct inode *ino, int desired, unsigned int flags)
 		err = access_file(name, r, w, x);
 	__putname(name);
 	if (!err)
-		err = generic_permission(ino, desired, flags);
+		err = generic_permission(ino, desired);
 	return err;
 }
 

fs/hpfs/namei.c

@@ -398,7 +398,7 @@ static int hpfs_unlink(struct inode *dir, struct dentry *dentry)
 			hpfs_unlock(dir->i_sb);
 			return -ENOSPC;
 		}
-		if (generic_permission(inode, MAY_WRITE, 0) ||
+		if (generic_permission(inode, MAY_WRITE) ||
 		    !S_ISREG(inode->i_mode) ||
 		    get_write_access(inode)) {
 			d_rehash(dentry);

fs/namei.c

@@ -224,7 +224,7 @@ static int acl_permission_check(struct inode *inode, int mask)
  * request cannot be satisfied (eg. requires blocking or too much complexity).
  * It would then be called again in ref-walk mode.
  */
-int generic_permission(struct inode *inode, int mask, unsigned int flags)
+int generic_permission(struct inode *inode, int mask)
 {
 	int ret;
 
@@ -289,7 +289,7 @@ int inode_permission(struct inode *inode, int mask)
 	if (inode->i_op->permission)
 		retval = inode->i_op->permission(inode, mask, 0);
 	else
-		retval = generic_permission(inode, mask, 0);
+		retval = generic_permission(inode, mask);
 
 	if (retval)
 		return retval;

fs/nfs/dir.c

@@ -2328,7 +2328,7 @@ int nfs_permission(struct inode *inode, int mask, unsigned int flags)
 out_notsup:
 	res = nfs_revalidate_inode(NFS_SERVER(inode), inode);
 	if (res == 0)
-		res = generic_permission(inode, mask, flags);
+		res = generic_permission(inode, mask);
 	goto out;
 }
 

fs/nilfs2/inode.c

@@ -806,7 +806,7 @@ int nilfs_permission(struct inode *inode, int mask, unsigned int flags)
 	    root->cno != NILFS_CPTREE_CURRENT_CNO)
 		return -EROFS; /* snapshot is not writable */
 
-	return generic_permission(inode, mask, flags);
+	return generic_permission(inode, mask);
 }
 
 int nilfs_load_inode_block(struct inode *inode, struct buffer_head **pbh)

fs/ocfs2/file.c

@@ -1293,7 +1293,7 @@ int ocfs2_permission(struct inode *inode, int mask, unsigned int flags)
 		goto out;
 	}
 
-	ret = generic_permission(inode, mask, flags);
+	ret = generic_permission(inode, mask);
 
 	ocfs2_inode_unlock(inode, 0);
 out:

fs/proc/base.c

@@ -2169,7 +2169,7 @@ static const struct file_operations proc_fd_operations = {
  */
 static int proc_fd_permission(struct inode *inode, int mask, unsigned int flags)
 {
-	int rv = generic_permission(inode, mask, flags);
+	int rv = generic_permission(inode, mask);
 	if (rv == 0)
 		return 0;
 	if (task_pid(current) == proc_pid(inode))

fs/reiserfs/xattr.c

@@ -967,7 +967,7 @@ int reiserfs_permission(struct inode *inode, int mask, unsigned int flags)
 	if (IS_PRIVATE(inode))
 		return 0;
 
-	return generic_permission(inode, mask, flags);
+	return generic_permission(inode, mask);
 }
 
 static int xattr_hide_revalidate(struct dentry *dentry, struct nameidata *nd)

fs/sysfs/inode.c

@@ -362,5 +362,5 @@ int sysfs_permission(struct inode *inode, int mask, unsigned int flags)
 	sysfs_refresh_inode(sd, inode);
 	mutex_unlock(&sysfs_mutex);
 
-	return generic_permission(inode, mask, flags);
+	return generic_permission(inode, mask);
 }

include/linux/fs.h

@@ -2188,7 +2188,7 @@ extern sector_t bmap(struct inode *, sector_t);
 #endif
 extern int notify_change(struct dentry *, struct iattr *);
 extern int inode_permission(struct inode *, int);
-extern int generic_permission(struct inode *, int, unsigned int);
+extern int generic_permission(struct inode *, int);
 
 static inline bool execute_ok(struct inode *inode)
 {